Highly salt-tolerant populations of Spartina alterniflora displayed the greatest ion selectivity (lower leaf Na+/K+ ratios), which was not displayed by the other two species. 2010, Redondo‐Go'mez et al. 2013). Asterisks (*) indicate significant differences between S. alterniflora and P. australis (*p < 0.05, **p < 0.01, ***p < 0.001). Standard errors of 4 replicate plots are shown. 2.5 m wide. Thirty pots of materials were divided into 15 groups, each including one pot of monoculture P. australis and one pot of monoculture S. alterniflora; two pots in each group were placed in cement pools with 10 cm of water. Due to S. alterniflora invasions, the effects of soil elevation and tide became less profound. Similarly, a repeated measures ANOVA was used to analyze the effects of salinity and the planting pattern on the performance of the two plants, Tukey's test was used as a post hoc comparison. Washington, DC 20036phone 202-833-8773email: esajournals@esa.org. However, current studies linking fungal response to salinity stress are limited. However, our results demonstrated that S .alterniflora, as a stress tolerator, could not only flourish in high salinity habitats but also perform well in freshwater and low salinity habitats (Figs. On the other hand, at low salinities P. australis produced more shoots per gram of rhizome tissue than The ramets were planted in circular pots (caliber 25 cm × bottom diameter 20 cm × height 20 cm) containing 4.5 kg of sand that was cleaned with freshwater. An ADF isolated from a monocot halophyte, Spartina alterniflora (SaADF2), imparted significantly higher level of drought and salinity tolerance when expressed in rice than its rice homologue OsADF2. Zonation of Spartina patens and Spartina alterniflora in a New England salt marsh. Rendiconti Lincei. Changes of plant species in an investigated plot are indicated by different hatching patterns in the left and right columns. 2006). Water salinity was adjusted with unpurified connate sea salt to 0‰, 5‰, 10‰, 15‰ and 20‰. The effective method is a periodic survey after control to remove the recovering invader. The greater salt tolerance of S. alterniflora compared with P. australis was due to its ability to use Na(+) for osmotic adjustment in the shoots. 15‰, and the low marsh has a sub‐high salinity of ca. Working off-campus? 2010). 2 and 3) (Vasquez et al. Hybrids are spreading rapidly throughout the Bay, potentially altering the estuary 2006b, He et al. Thus, an important role of plant ecologists is to illustrate the influences of new arrivals on community patterns along environmental gradients to explain plant distribution. 1. 1). In mid‐April, the collected ramets were planted. 25 cm in length, with a single ramet and attached roots (the materials used in other experiments were the same). The salinity in the zones above the mean spring tide water level decreased due to rain eluviations and a drastic decrease in input of salt from tides. 2). 2006). Dongtan marsh, a coastal wetland, is influenced by many factors, such as the tide, evaporation, rainfall and topography (Li et al.  |  A repeated ANOVA was used to test the difference of salinity between the year of 2004 and 2008 in the South transect; the same analysis was performed for the North transect. However, the molecular basis of its high salt tolerance remains elusive. This case study shows that if a new arrival has a wide tolerance range to major non‐resource stress factors of physiologically stressful ecosystems, it can not only displace natives by interspecific competition in the high‐stress zone and consequently initiate community succession but also rapidly spread into the zones without native plants. Consumer driven pollen limitation of seed production in marsh grasses. The aboveground dry biomass, density and flowering ramets in each quadrat were determined. 2005). 2005, Vasquez et al. australis” to “mudflat–S. 4.5‰ to 15.5‰ and then decreased to ca. Asterisks (*) indicate that the RNE is greater than zero (*p < 0.05, **p < 0.01, ***p < 0.001). 3) (Vasquez et al. 2011). Get the latest public health information from CDC: https://www.coronavirus.gov, Get the latest research information from NIH: https://www.nih.gov/coronavirus, Find NCBI SARS-CoV-2 literature, sequence, and clinical content: https://www.ncbi.nlm.nih.gov/sars-cov-2/. Elevated salinity and inundation will facilitate the spread of invasive Spartina alterniflora in the Yangtze River Estuary, China. Both at low and high salinity, the RNEs of P. australis and S. alterniflora were significantly greater than zero (Fig. 7). Effects of salinity on the interactions between Phragmites australis and Spartina alterniflora in the field competition experiment. The performance of S. alterniflora transplanted in the native communities where the salinities were higher than 7.8‰ improved rapidly over time, but S. alterniflora transplanted at the salinity of 4.9‰ did not significantly change (Table 4; Fig. 4–18‰ (see Results: Remote sensing and filed survey… and Fig. Capital letters indicate significant differences of S. alterniflora performance along the salinity gradient; lowercase letters indicate significant differences of P. australis performance along the salinity gradient. It is important to note that there is a high possibility of colonisation by S. alterniflora. 2001, Wang et al. The aboveground dry biomass, density and number of flowering ramet of natives including P. australis and S. mariqueter were negatively correlated with soil pore water salinity in the field, but the growth and sexual reproduction of invasive S. alterniflora were not correlated with salinity (Table 5; Fig. (2006) and Wang et al. 2006a, Medeiros et al. Validation fonctionnelle du rôle des miARNs dans la tolérance au phénanthrène chez Spartina: Utilisation d’Arabidopsis en système hétérologue. Moreover, S. alterniflora can efficiently absorb water at high salinity because it's osmotic potential will increase with increasing salinity (Vasquez et al. S. alterniflora is noted for its capacity to act as an environmental engineer. An actin-depolymerizing factor from the halophyte smooth cordgrass, Spartina alterniflora (SaADF2), is superior to its rice homolog (OsADF2) in conferring drought and salt tolerance when constitutively overexpressed in rice. Effects of interspecific interaction on seed germination between dominant species in the Yangtze River Estuary. Specifically, some scholars have reported that the photosynthesis of cordgrass does not significantly change in the salinity range of 0–510 mM (Mateos‐Naranjo et al. Planta. 2004). Simultaneously, enhancement processing for the normalized vegetation index (used to distinguish vegetation from mudflats) was conducted to interpret information on S. alterniflora, P. australis, sedge and mudflats and to calculate the areas of the various communities. Left columns represent the performances of plants in 2004; right columns represent the performances of plants in 2008. These ecophysiological features help S. alterniflora maintain a constant growth rate over a wide salinity range (Fig. Published by Oxford University Press on behalf of Japanese Society of Plant Physiologists. Spartina alterniflora produced new biomass up to 0.6 M NaCl, whereas P. australis did not grow well above 0.2 M NaCl. Learn more. Transcriptome analysis showed that high salt stress induced the expression of carbohydrate metabolism, especially cell-wall biosynthesis-related genes in Spartina, and repressed its expression in rice. 8.5‰ (Fig. (2005) have shown that the increase of salinity can strongly inhibit the growth of three haplotypes (viz. P. australis failed to flower at a salinity of 20‰ and thus the inflorescence dry biomass was 0. Although recent efforts to develop salt tolerant … Similarly, there were four rows in each mixture quadrat and eight ramets in each row. In contrast, the growth rate of the invader became higher when salinity increased; correspondingly, it gained the competitive dominance at high salinity of ca. Standard errors of 4 replicate plots are shown. After S. alterniflora colonized the north zone of Dongtan marsh, this invader not only spread into mudflats without the natives but also displaced native plants in the high salinity zones (Figs. Rapidly spreading invasive plants in salt marshes are ideal subjects for studying the effects of non‐resource stress on plant distribution. Impact of exotic plant detritus on macrozoobenthic assemblages: evidence from a transitional aquatic ecosystem. Consequently, the vegetation area significantly increased after colonisation by the new arrival, and the vegetation pattern changes. Please check your email for instructions on resetting your password. Therefore, S. alterniflora suffers relatively little damage from high salinity. S. alterniflora had no dead ramets and, thus, had no ramet death ratio. 2006). Inundation and salinity are two major non‐resource conditions in salt marshes (Emery et al. The controlled system consists of 100 cement pools (length 1.5 m × width 1.5 m × height 0.6 m). Controlled S. alterniflora should not be allowed to recover. 2010). L’étude de la progression de la Spartine (Spartina alterniflora Loisel) en rade de Brest entre 1952 et 2004 a été réalisée à partir d’une analyse diachronique par photo-interprétation et de mesures de terrain au DGPS. Each part of the plant was oven‐dried at 80°C until a constant weight was reached to determine the total dry biomass. Would you like email updates of new search results? However, while many studies have focused on the tolerance to low resource availability and competition under different levels of resource availability (Grime 1977, Tilman 1985, Tilman 1990, Grace 1991, Li et al. marshes with low salinity in North America has been changed by P. australis and its salt‐tolerant haplotype (Silliman and Bertness 2004, Vasquez et al. Relative importance of environmental variables for the distribution of the invasive marsh species Spartina alterniflora across different spatial scales. Consequently, the vegetation pattern has changed over time (Fig. 2 and 3) (Vasquez et al. Epub 2012 Jan 28. Because P. australis failed to flower in the first year, a two‐way ANOVA was used to analyze the effects of salinity and interspecific interactions on the flower ratio in the second year, Tukey's test was used as a post hoc comparison. may be accelerated in the marshes of eastern China in the future. Publication If you make use of the data presented here, please cite the following article: The full-length transcriptome of Spartina alterniflora reveals the complexity of high salt tolerance in monocotyledonous halophyte. 6.5 mm/year at the mouth of the Yangtze River, which is a rate much higher than the annual mean of 1.4 mm/year (Wang et al. 1). 2006, Wang et al. Journal of Geophysical Research: Biogeosciences. Transcriptome analysis of smooth cordgrass (Spartina alterniflora Loisel), a monocot halophyte, reveals candidate genes involved in its adaptation to salinity. 40–80 h/15 d, 40 h/15 d and 15 h/15 d, respectively (Tang et al. Both our pot experiment and several published studies demonstrate that P. australis produces more aboveground biomass than S. alterniflora and therefore has a competitive advantage in freshwater and low salinity habitats (Figs. Ecology, 73(5):1842-1851. Use the link below to share a full-text version of this article with your friends and colleagues. Journal of Experimental Marine Biology and Ecology. Wani SH, Kumar V, Khare T, Guddimalli R, Parveda M, Solymosi K, Suprasanna P, Kavi Kishor PB. For example, the osmotic potential of P. australis cannot increase with the increase of salinity, inhibiting water uptake (Vasquez et al. This work was supported by the National Natural Science Foundation (numbers 31100301 and 31170450), Shanghai Natural Science Foundation (11ZR1430700), and the Fundamental Research Funds for the Central Universities (numbers Xjj2011065 and 2012jdhz43). 1). 2001, Pennings et al. Changes in multiple environmental factors additively enhance the dominance of an exotic plant with a novel trade‐off pattern. High salt stress also induced alternative splicing in Spartina, while differentially expressed alternative splicing events associated with photosynthesis were overrepresented in Spartina but not in rice. We collected the aboveground parts of the plants in each quadrat and measured the soil pore water salinity. 2). Vasquez et al. To test the performance along the salinity gradient, an experiment was conducted in a controlled system at a scientific observation station, located at Chongming Island, 2.5 km west of Dongtan marsh. Moreover, as a competitor, P. australis could dominate low salinity habitats and persist in high salinity habitats (Figs. Spartina alterniflora . This site needs JavaScript to work properly. The shoreline elevation is 100 cm. For permissions, please email: journals.permissions@oup.com. 4 and 5). Thus, S. alterniflora can rapidly displace the natives in high salinity conditions and lead the native community to proceed into the invaded stage (Figs. 2006, Engloner 2009). Spartina plants have a salt gland and thus can excrete excess salt on the leaf face (Levering and Thomson 1971, Wang et al. australis (Fig. After one hour, soil pore water was extracted from the holes and salinity was measured with a conductivity meter (Metter Toledo Company, Switzerland). Halotropism: Phytohormonal Aspects and Potential Applications. 2016 Aug 19;17(1):657. doi: 10.1186/s12864-016-3017-3. The SaVHAc1-expressing plants showed enhanced tolerance to salt stress than the wild-type plants, mainly through adjustments in early stage and preparatory physiological responses. Spartina alterniflora; Full-length transcriptome; Gene expression; High salt tolerance; Regulatory hub genes; Single-molecule real-time sequencing. Nine sampling plots were set in each transect based on vegetation types, and four quadrats (1 m × 1 m) were randomly established in each sampling plot. Moreover, the invader had no dead ramet. ESA Headquarters1990 M Street, NWSuite 700 Epub 2018 Jun 28. 1 and 7). Number of times cited according to CrossRef: Dramatic change of bacterial assembly process and co-occurrence pattern in Spartina alterniflora salt marsh along an inundation frequency gradient. Dramatically, they can reciprocally invade. 2). S. alterniflora has become the largest plant community as of 2004 (Fig. alterniflora and natives” in the middle zone, and the original “mudflat–sedge–P. The tide in Dongtan marsh is low and infrequent (half‐immersion type), and such low‐intensity inundation stress does not inhibit the growth of P. australis and S. alterniflora or change the outcome of their competition (Maricle and Lee 2002, Wang et al. The differences of relative neighbor effect (RNE) showed that P. australis exhibited a competitive dominance over S. alterniflora at a low salinity of 7.03‰ (Table 1; Fig. The ramets of one plant was surrounded by those of another plant species, with the exception of the ramets in the mixture quadrat edge row. All of the pots were placed in cement pools for four weeks with 5.0 cm of freshwater in each pool, and then the salinity treatment was applied. At a salinity of 10 ‰, the inflorescence dry biomass of P. australis was ca. To dissect the molecular mechanisms underlying its salinity adaptation, leaf and root transcriptome of S. alterniflora was sequenced using 454/GS-FLX. 2010); and because the salinity of soil pore water in our Dongtan marsh study system is ca. 2006, Wang et al. Learn about our remote access options, School of Human Settlements and Civil Engineering, Xi′an Jiaotong University, 28 Xianning West Road, Xi′an 710049 China, Institute of Water Resources and Hydro-electric Engineering, Xi'an University of Technology, 5 Jinhua South Road, Xi′an 710048 China, Coastal Ecosystems Research Station of the Yangtze River estuary, Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Institute of Biodiversity Science, Fudan University, 220 Handan Road, Shanghai 200433 China, Shanghai Academy of Environmental Sciences, 508 Qinzhou Road, Shanghai 200233 China, School of Life Sciences, Shanghai Key Laboratory of Urbanization and Ecological Restoration, East China Normal University, 500 Dongchuan Road, Shanghai 200241 China. Salinity and performances of plants in 2004 and 2008 in Dongtan marsh. 2006, Wang et al. In this study, the invasive S. alterniflora had a high tolerance to salt and thus a competitive superiority in high salinity conditions (Figs. As a result, the invader colonising the native communities in high salinity zones performed better and could displace the natives over time. 2011, Zhou et al. 7‰. Kuchler, A. W. 1964. Because sedges, including S. triqueter, S. mariqueter and C. scabrifolia, have a higher tolerance to salt than P. australis (Wang et al. Three quadrats were established in each plot, and the quadrats were spaced 2.0 m apart. CHARACTERISTICS Slender, wiry leaves that recurve down toward the base giving a graceful, hay like appearance. 2006a). The collected plant materials were cut into similar‐sized plantlets ca. Moreover, in the same transect, salinity did not change significantly over time (North transect: F = 0.143, p = 0.708; South transect, F = 0.012, p = 0.915; one‐way repeated‐measures ANOVA). P. australis could survive in the highest salinity of 20‰ in this study (Fig. It grows in a wide range of salinities, from about 5 psu to marine (32 psu), and has been described as the "single most important marsh plant species in the estuary" of Chesapeake Bay. Effects of salinity on growth, competitive interaction and total nitrogen content of two estuarine macrophyte species cultivated on artificial substrate. Authors; Authors and affiliations; N. Sleimi; C. Abdelly; Conference paper. 55(3): 221-238. The experiments revealed that the growth and reproduction of the native species declined with increasing salinity but that the invasive species performed well in the salinity range of 0–20‰, illustrating why the invader could proliferate in the high salinity mudflats in Dongtan. 1 and 7). In contrast, native species with narrow ecological amplitude with respect to the non‐resource stressors can occupy only the low stress zones where they have a high growth rate and subsequent competitive dominance over the new arrival. In mudflats, the annual average horizontal expansion rate of S. alterniflora has been documented to be 74.3 ± 8.6 cm (Chen et al. Moreover, the habitat partitioning theory predicts that when plant species exhibit distinct preference for habitats, the physiological or morphological characters and not competition determine the performance of plants along an environmental gradient; when plants have shared preferences for their most preferred habitat type, competitive ability determines their performance (Rosenzweig 1991, Wisheu 1998). 2006a, b, Wang et al. 3 and 5), the vegetation pattern of many Spartina spp. Spartina alterniflora (smooth cordgrass) is a Louisiana native monocot halophyte that can withstand salinity up to double the strength of sea water. 2 and 5) (Chen et al. 1). Thus, the strong interspecific competition substantially inhibited the performance of two plants (Tables 2 and 3; Figs. 2018. The greater salt tolerance of S. alterniflora compared with P. australis was due to its ability to use Naþ for osmotic adjustment in the shoots. 8‰ (Fig. Moreover, because the majority of Dongtan marsh is characterized by high salinity and S. alterniflora becomes more aggressive over time under high salinity conditions (Figs. Remote sensing has been conducted eight times since 1997, and image formats were uniformly Landsat‐5TM (except in 2001 and 2002, when the image format is Landsat 7 ETM+) transformed. Published by Elsevier Masson SAS. Thus, P. australis has a narrow ecological amplitude with respect to salinity, which will lead to a decrease in the growth rate along the salinity gradient (Fig. We predicted that invasive S. alterniflora would be favored by the salinity in the salt marshes along the eastern coast of China and, therefore, would successfully invade. Moreover, the native had a high growth rate and therefore exhibited a competitive dominance over the invader at low salinity of ca. 2006a, Liu et al. 2011). 2004). The pool water was replaced every 15 days, and the salinity was adjusted to the original level. 2 Citations; 246 Downloads; Part of the Tasks for Vegetation Science book series (TAVS, volume 38) Abstract. Thus, the soil salinity of the estuaries has risen. A total of 30 pots were provided for the experiment: 15 pots of monoculture P. australis with 2 ramets in each pot and 15 pots of monoculture S. alterniflora with 2 ramets in each pot. Spartina alterniflora was studied through its expression in rice. 3 and 5), the field transplant experiment showed that this invader displayed good performance and a high influence (NAI) on native P. australis in high salinity zones (Fig. Keywords: 2 and 3). Some other studies have shown that the inundation stress of Dongtan marsh cannot substantially influence the performances and competitiveness of these two plants because they have a high tolerance to inundation (Wang et al. For example, in coastal salt marshes in Dafeng, Qidong and Jiuduansha, China, the vegetation pattern was mudflat‐sedge or mudflat‐P. The Spartina transcriptome is closer to rice than Arabidopsis, and a higher proportion of transporter and transcription factor-encoding transcripts have been found in Spartina. We systematically … In each plot, one quadrat was planted with 16 ramets of P. australis spaced at 0.3‐m intervals, the second quadrat was planted with 16 ramets of S. alterniflora spaced at 0.3‐m intervals, and the third quadrat was planted with 16 ramets of P. australis and 16 ramets of S. alterniflora spaced 0.15 m apart. 40% (Fig. Spartina alterniflora is a highly salt-tolerant monocotyledonous halophyte that belongs to the Poaceae family (Subudhi and Baisakh 2011). There were four rows in each monoculture quadrat and four ramets in each row. Thus, the invader could not displace the native, and the native communities were stable in the low salinity zones. australis before Spartina plants colonized; at present, the vegetation pattern is mudflat–Spartina spp., mudflat–sedge–Spartina spp. 2006a). 4. 2). SMOOTH CORDGRASS . Pearson correlation analysis was used to test the relationship between salinity and plant performance at each transect in each year. Baisakh N, RamanaRao MV, Rajasekaran K, Subudhi P, Janda J, Galbraith D, Vanier C, Pereira A. Sciences du Vivant [q-bio]. Symbols are as in Fig. The vegetation pattern in Dongtan marsh in 1997, when S. alterniflora had not colonized, included two formations, P. australis and sedges including S. mariqueter, S. triqueter and C. scabrifolia (Fig. 2012), the effects of the tolerance of new arrivals to non‐resource factors on their performance and competitiveness have been relatively ignored. The competitive inhibition of P. australis by S. alterniflora increased notably with the increase of salinity and over time (Table 2; Figs.  |  Spartina plants have a salt gland and thus can excrete excess salt on the leaf face (Levering and Thomson 1971, Wang et al. Panicum hemitomon, Spartina patens, and Spartina alterniflora are wide-spread dominant grasses of fresh, brackish, and salt marsh plant communities, respectively. Sedge includes Scirpus triqueter, Scirpus mariqueter and Carex scabrifolia. Standard errors of 4 replicate quadrats are shown. 2006a, b). Lowercase letters indicate significant differences of RNE between two plants. Spartina alterniflora produced new biomass up to 0.6 M NaCl, whereas P. australis did not grow well above 0.2 M NaCl. Identification and expression analyses of the NAC transcription factor family in Spartina alterniflora. 2006a). Geographical Variation and Influencing Factors of Spartina alterniflora Expansion Rate in Coastal China. Important, salt ... Spartina patens or Salt Marsh hay as it is sometimes called . A t‐test was used to analyze the difference of performance between the native and the invader at each salinity level. Capital letters indicate significant differences among salinity groups; lowercase letters indicate significant differences between two years at each salinity level. The S. alterniflora and P. australis samples were collected from the middle marsh zone of Dongtan marsh in mid‐April. 6). Because some non‐resource stresses have substantial positive effects on native community invasibility, the practices that change the level of non‐resource stress and create favorable conditions for invasive species should be stopped. 1, 2, 4, 6 and 7). Moving from the dike to the seaward side of Dongtan salt marsh, the soil pore water salinity gradually increased from ca. 2020 Feb 20;42(2):194-211. doi: 10.16288/j.yczz.19-250. and mudflat–P. 2006) This implies that differences in responses of plants to non‐resource stress can contribute to the maintenance of diversity in heterogeneous environments and explain zonation patterns in physiologically stressful ecosystems. In this study, we used Pacific Biosciences (PacBio) full-length single-molecule long-read sequencing and RNA-seq to elucidate the transcriptome dynamics of high salt tolerance in Spartina by salt gradient experiments. NLM Introduction double the strength of sea water [6]. The remaining eight quadrats served as the control. The findings of the case study demonstrated that if a new arrival has a wide tolerance range to major non‐resource stress in an ecosystem, it can not only displace natives by interspecific competition in high stress zones but can also spread into the zones without natives; on the other hand, natives with a narrow ecological amplitude in relation to the non‐resource stress can only persist in low stress zones. 2006). 2006a, b, Engloner 2009). tolérance au phénanthrène chez Spartina: Utilisation d’Arabidopsis en système hétérologue Loup Tran van Canh To cite this version: Loup Tran van Canh. (2004) have reported that S. alterniflora has an obvious competitive advantage over other natives such as S. mariqueter in wide salinity conditions. Here, we recommend that practices that change the soil salinity and thereby create favorable conditions for invasive species should be stopped or, at a minimum, reduced. Consequently, S. alterniflora had a higher growth rate in treatment salinities of 10‰, 15‰ and 20‰. Moreover, the succession of a native community will be initiated if the new arrival has competitive dominance, in which case, the new arrival with high tolerance to non‐resource stress can substantially change vegetation pattern. Our previous research identified significant intraspecific variation in salt tolerance and … Salinity Affects Topsoil Organic Carbon Concentrations Through Regulating Vegetation Structure and Productivity. Here, S. alterniflora rapidly changed the community structure of P. australis in the high salinity zones (Figs. The experiment was conducted on the mudflats of Dongtan marsh within a 60 × 60 m2 area containing a tidal creek ca. We measured the total number of ramets as well as the number of dead ramets of P. australis and S. alterniflora in each pot. After S. alterniflora colonizes, the zonation of plant communities in Dongtan marsh can be interpreted as reflecting stages in a succession sequence associated with the salinity. Unlike most other marsh plants, the salt-tolerance of cordgrass is directly ... Steve K.; Webb, James W. 1988. Yi Chuan. Clipboard, Search History, and several other advanced features are temporarily unavailable. The competitor‐stress tolerator‐ruderal theory predicts that competitors exist in highly productive habitats and that stress tolerators persist in unproductive habitats (Grime 1977, Grace 1991). For example, Dongtan salt marsh, located in the Yangtze River estuary, Chongming Island, Shanghai, China (31°250′ ∼ 31°380′ N; 121°500′ ∼ 122°050′ E), has two formations that include native Phragmites australis (Cav.) Bedre R, Mangu VR, Srivastava S, Sanchez LE, Baisakh N. BMC Genomics. The phalanx life strategy is considered to be important for invasive success of P. australis in Spartina marshes (Vasquez et al. The competitor‐stress tolerate‐ruderal theory predicts that the gradients in physical stress and resource availability will show similar patterns of segregation in stress tolerators and excellent competitors (Grime 1977, Grace 1991). The performance of P. australis significantly decreased along the salinity gradient (Fig. In response to this increase, the spread of Spartina spp. Native and non-native halophytes resiliency against sea-level rise and saltwater intrusion. 3). Eight plots were established in each zone, and the plots were spaced 5.0 m apart. Does Soil Pore Water Salinity or Elevation Influence Vegetation Spatial Patterns along Coasts? 3). Here, we developed and evaluated transgenic rice lines with a single Salt Responsive Protein 3-1 (SaSRP3-1) gene as well as pyramids with two-genes SaSRP3-1 and Vacuolar H +-ATPase subunit c1 (SaVHAc1) derived from a halophyte grass Spartina alterniflora L. for salt tolerance at seedling, vegetative, and reproductive stages. Enter your email address below and we will send you your username, If the address matches an existing account you will receive an email with instructions to retrieve your username, Seven months later, we randomly selected four plots in each zone, collected all the plants in the center of the quadrat (0.25 m. © 2021 Ecological Society of America. One quantitative measure of salt tolerance ... Spartina alterniflora (smooth cordgrass) Tetragonia tetragonoides (warrigal greens, kōkihi, sea spinach) Dunaliella (a green alga) sesuvium portulacastrum (sea purslane) As biofuel. 1) and P. australis, with a low tolerance, occupies the high marsh closest to the dike where salinity is low (Figs. Spartina alterniflora has become one of the dominant species in the coastal wetlands in China due to its unique physiological and ecological characteristics (e.g., higher growth rate, higher net primary yield, and higher salt tolerance) compared to native plants [13,14]. Dike to the Poaceae family ( Subudhi and Baisakh 2011 ) Tang et al please email: @... Plant Biotechnol J germinans establishment in salt marshes in Dafeng, Qidong Jiuduansha... Agricultural Center, Baton Rouge, LA, USA and affiliations ; N. Sleimi C.. Produced more biomass than S. alterniflora had a high possibility of colonisation S.... 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And soil Sciences, Louisiana State University Agricultural Center, Baton Rouge, LA,.. Colonising the native communities in high salinity throughout the vegetation area and distribution of! Email: journals.permissions @ oup.com theory account for stress and an invader determines intensity... The aboveground dry biomass and inflorescence dry biomass, density and flowering ramets in each pot and Spartina (... M2 area containing a tidal creek ca content of two halophyte species: alterniflora. 4–18‰ ( see results: Remote sensing and filed survey… and Fig australis and S. alterniflora gained dominance! The importance of environmental Variables for the distribution area of the NAC transcription factor family in Spartina is unclear! ( Tang et al T, Guddimalli R, Rajasekaran K, Subudhi P, Kavi Kishor PB and! The relationship between salinity and interspecific competition on the mudflats ( Fig the competitive superiority in high salinity (... And inundation will facilitate the spread of invasive Spartina alterniflora in the River! Pot experiment Spatial patterns along Coasts different salinities were randomly arranged the physiological tolerance and ability...: Utilisation d ’ Arabidopsis en système hétérologue factor family in Spartina alterniflora ; Full-length transcriptome ; Gene ;... Salt... Spartina patens or salt marsh plant structures with water an exotic plant detritus on assemblages! Performance between the presence and absence of transplanted S. alterniflora colonized Dongtan marsh within a ×! Protein kinase-encoding genes ( SaOST1, SaCIPK10 and SaLRRs ) spartina alterniflora salt tolerance hub genes in field! Controlled projects are practiced, S. alterniflora and P. australis could dominate low zones! More broadly, plants often suffer from harsh environmental conditions within their current and potential distribution ranges in... Substantially change along the salinity of ca alterniflora colonized Dongtan marsh is favorable for S. alterniflora (.... ; right columns two plants stage and preparatory physiological responses other ecologists have also shown that some non‐resource level! Could not displace the natives over time vegetation were investigated ( Fig the inflorescence biomass... That can withstand salinity up to 0.6 M NaCl a same year similar‐sized plantlets ca other marsh plants and... Email: journals.permissions @ oup.com and the salinity of 10 ‰, the vegetation were investigated ( Fig why vegetation. Dry biomass arrivals and native plants water for up to 0.6 M.... ( 2005 ) have shown that the increase of salinity can strongly the! And Carex scabrifolia and inundation will facilitate the spread of Spartina alterniflora noted... Of candidate genes involved in its adaptation to salinity × 60 m2 area containing a tidal creek.! ) ; and because the salinity of ca are spreading rapidly throughout the area. Could not displace the native communities were stable in the vegetation area and the vegetation pattern in marsh... Vegetation pattern of Dongtan marsh, the vegetation pattern is mudflat–Spartina spp., mudflat–sedge–Spartina.... 15‰ and 20‰ Regulating vegetation structure and Productivity share a full-text version of this article with friends... To its high salt tolerance than bacteria ( Rath et al., 2019 ) 3 and 5 ), invader. In an invaded estuary australis did not grow well above 0.2 M NaCl coastal! Preparatory physiological responses time ( Fig 40–80 h/15 d and 15 h/15,... Adjusted with unpurified connate sea salt to 0‰, 5‰, the effects soil... Native monocot halophyte that can withstand salinity up to 0.6 M NaCl esa Headquarters1990 M Street, 700... As the number of ramets as well as the distribution area of natives.... Spaced 2.0 M apart 2 Citations ; 246 Downloads ; Part of the NAC transcription factor family in Spartina still! Some halophytes are being studied for use as `` 3rd-generation '' biofuel precursors marsh zone Dongtan... The salinity gradient ( Fig a same year ramets in each pot includes Scirpus triqueter, Scirpus mariqueter Carex! And ramet death ratio adaptation, leaf and root transcriptome of S. alterniflora live soil lowered the freeze of. Influences on community patterns Phragmites ( Vasquez et al absence of transplanted alterniflora! Salt-Tolerance of cordgrass is directly... Steve K. ; Webb, James W..! Street, NWSuite 700 Washington, DC 20036phone 202-833-8773email: esajournals @ esa.org Carbon Concentrations through vegetation! Highly salt-tolerant monocotyledonous halophyte that can withstand salinity up to double the strength of water... Tolerator gains the competitive superiority in high salinity zones performed better and could displace the native were. Be inundated with salt water for up to 0.6 M NaCl the link below to share a version... Transplanted S. alterniflora becomes an excellent competitor in high salinity, the evaporation of soil elevation and tide became profound! Invasions by plants such as Spartina and Phragmites ( Vasquez et al of high salt-tolerant mechanisms in Spartina (. Growth of three haplotypes ( viz, in coastal salt marshes of eastern China in the field experiment. Growth of three haplotypes ( viz Sleimi ; C. Abdelly ; Conference.... Dc 20036phone 202-833-8773email: esajournals @ esa.org hay as it is important as competitor! Transport, osmoprotectants, antioxidants, detoxifying enzymes, etc the importance of environmental conditions within their and... Monoculture quadrat and measured the total number of candidate genes encoding transcription factors, non ….! Mudflats ( Fig distribution area of the NAC transcription factor family in Spartina is still unclear due to its genome... Physiological responses competitive inhibition of P. australis declined with increasing elevation, although the input salt... Well above 0.2 M NaCl AC ) of P. australis spread into the mudflats ( Fig, SW! Was sequenced using 454/GS-FLX be accelerated in the salt tolerance remains elusive ( Tables 2 and 3 ; Figs dike... Authors and affiliations ; N. Sleimi ; C. Abdelly ; Conference paper attributed to the side... These two theories do not distinguish between resource and non‐resource stress when predicting the nature of interactions. Enhance the dominance of an exotic plant detritus on macrozoobenthic assemblages: evidence from a aquatic... Propagules, including seeds and underground stems ( Wang et al nature of plant species between mixture and monoculture a... Each quadrat were determined of soil elevation and tide became less profound cut into similar‐sized plantlets ca flower ratio in... 15 days, and the invader colonising the native, and the plots were in! Than zero ( Fig other marsh plants, the total dry biomass was.... Measurement was conducted in the coastal salt marshes ( Emery et al expression ; high stress... Of ca importance and intensity in an invaded estuary in Dafeng, Qidong Jiuduansha! Capital letters indicate significant differences among salinity groups ; lowercase letters indicate significant differences between two at. And AC ) of P. australis performances between the RNE value and.! Been relatively ignored competitor in high salinity conditions due to its high salt tolerance ; regulatory hub in. Gram of rhizome tissue than did S. alterniflora higher growth rate over wide... Changed over time ( Fig of environmental conditions on interspecific competition among plants! As the distribution area of the invasive marsh species Spartina alterniflora produced biomass. Be important for invasive success of P. australis in Spartina is still due... Macrozoobenthic assemblages: evidence from a transitional aquatic ecosystem Spatial patterns along Coasts h/15. 251 ( 4 ):453-64. doi: 10.1007/s00425-020-03366-6 result, the vegetation were (... Physiological responses mid‐infrared lights is significantly different these examples suggest the importance environmental... Marsh changed from “ mudflat–sedge–P investigated ( Fig “ mudflat–sedge–P however, the vegetation pattern has changed time. Highlight that the increase of salinity on the distribution area of new arrivals and native.! Mar 9 ; 251 ( 4 ):453-64. doi: 10.16288/j.yczz.19-250, “....