Interpopulation Differences in Salinity Tolerance of the Invasive Cordgrass Spartina densiflora: Implications for Invasion Process

Mateos‐Naranjo, Enrique; Redondo‐Gómez, Susana

doi:10.1007/s12237-015-9956-0

Cited by 13 publications

(3 citation statements)

References 35 publications

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“…As in our study, invasive S. densiflora in Humboldt Bay (California) showed reductions in seed germination at salinities higher than 0.30 M NaCl [30]. Some authors recorded total germination inhibition at 1.00 M NaCl and at 0.70 M NaCl for invasive S. densiflora in the Gulf of Cádiz [29,31]. The great salinity tolerance of S. densiflora was also reflected on its rapid germination after being pre-treated at increasing salinities, whereas this study is the first to document the opposite response for native S. maritima .…”

Section: Discussionsupporting

confidence: 63%

“…This niche breath has resulted in its colonization of a wide range of different habitats along the intertidal gradient [21,26,28]. Seed production is key to the spread of Spartina species [20], and the ability of S. densiflora to germinate is a recognized determinant for its invasive potential from brackish marshes to hypersaline saltpans [29,30,31]. To our knowledge, no previous study has evaluated salinity responses of S. densiflora seeds that were produced in different habitats along the intertidal gradient.…”

Section: Introductionmentioning

confidence: 99%

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Differential Effects of Increasing Salinity on Germination and Seedling Growth of Native and Exotic Invasive Cordgrasses

Infante-Izquierdo

Castillo

Grewell

et al. 2019

Plants

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Soil salinity is a key environmental factor influencing germination and seedling establishment in salt marshes. Global warming and sea level rise are changing estuarine salinity, and may modify the colonization ability of halophytes. We evaluated the effects of increasing salinity on germination and seedling growth of native Spartina maritima and invasive S. densiflora from wetlands of the Odiel-Tinto Estuary. Responses were assessed following salinity exposure from fresh water to hypersaline conditions and germination recovery of non-germinated seeds when transferred to fresh water. The germination of both species was inhibited and delayed at high salinities, while pre-exposure to salinity accelerated the speed of germination in recovery assays compared to non-pre-exposed seeds. S. densiflora was more tolerant of salinity at germination than S. maritima. S. densiflora was able to germinate at hypersalinity and its germination percentage decreased at higher salinities compared to S. maritima. In contrast, S. maritima showed higher salinity tolerance in relation to seedling growth. Contrasting results were observed with differences in the tidal elevation of populations. Our results suggest S. maritima is a specialist species with respect to salinity, while S. densiflora is a generalist capable of germination of growth under suboptimal conditions. Invasive S. densiflora has greater capacity than native S. maritima to establish from seed with continued climate change and sea level rise.

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Section: Discussionsupporting

confidence: 63%

Section: Introductionmentioning

confidence: 99%

Differential Effects of Increasing Salinity on Germination and Seedling Growth of Native and Exotic Invasive Cordgrasses

Infante-Izquierdo

Castillo

Grewell

et al. 2019

Plants

View full text Add to dashboard Cite

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“…This highlights the potential of halophytes as a source of PGPR for the formulation of wide-scope biofertilizers. Overall, Biofertilizers 1, 3, and 5 were the most suitable for most crops tested, which indicates that the PGP properties presented by the consortia are more important than the origin of the bacteria, since they come from halophytes that grow in different habitats [25,55,56]. Depending on the interaction of stressors, the PGP properties that promote plant growth will change.…”

Section: Discussionmentioning

confidence: 97%

Consortia of Plant-Growth-Promoting Rhizobacteria Isolated from Halophytes Improve Response of Eight Crops to Soil Salinization and Climate Change Conditions

et al. 2021

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Soil salinization is an environmental problem that adversely affects plant growth and crop productivity worldwide. As an alternative to the conventional approach of breeding salt-tolerant plant cultivars, we explored the use of plant-growth-promoting rhizobacteria (PGPR) from halophytic plants to enhance crop growth under saline conditions. Here, we report the effect of five PGPR consortia from halophytes on the growth of eight (alfalfa, flax, maize, millet, rice, strawberry, sunflower, and wheat) of the crops most commonly produced on salinized soils worldwide. To test the efficiency of halotolerant consortia, we designed a complex environmental matrix simulating future climate-change scenarios, including increased CO2 levels and temperature. Overall, biofertilizers enhanced growth of most crops with respect to non-inoculated control plants under different CO2 concentrations (400/700 ppm), temperatures (25/+4 °C), and salinity conditions (0 and 85 mM NaCl). Biofertilizers counteracted the detrimental effect of salinity on crop growth. Specifically, strawberry and rice showed the greatest positive additive response to inoculation in the presence of salt; above-ground biomasses were 35% and 3% greater, respectively, than their respective control grown without salt. Furthermore, depending on the interaction of environmental factors (salinity × CO2 × temperature) analyzed, the results varied—influencing the most effective biofertilizer determined for each crop now, or in the future. Our findings highlight the importance of conducting studies that consider stress interaction for realistic assessments of the potential of biofertilizers in a climate-changed world.

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Variation in sexual reproductive output among exotic taxa of Spartina (Poaceae)

et al. 2021

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Interpopulation Differences in Salinity Tolerance of the Invasive Cordgrass Spartina densiflora: Implications for Invasion Process

Cited by 13 publications

References 35 publications

Differential Effects of Increasing Salinity on Germination and Seedling Growth of Native and Exotic Invasive Cordgrasses

Differential Effects of Increasing Salinity on Germination and Seedling Growth of Native and Exotic Invasive Cordgrasses

Consortia of Plant-Growth-Promoting Rhizobacteria Isolated from Halophytes Improve Response of Eight Crops to Soil Salinization and Climate Change Conditions

Variation in sexual reproductive output among exotic taxa of Spartina (Poaceae)

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