Tapegrass, Eelgrass, or Wild Celery (Vallisneria americana Michaux): A Native Aquatic and Wetland Plant

Tootoonchi, Mohsen; Gettys, Lyn A.; Bhadha, Jehangir H.

doi:10.32473/edis-ag437-2019

Cited by 4 publications

(8 citation statements)

References 9 publications

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“…Other researchers have reported 6.0 ppt [12] or 12.0 ppt [33] as the maximum salinity level tolerable for V. americana. Therefore, reports for this species ranges between 5.0 to 15.0 ppt [8,34,35]. Few studies have compared the effect of salinity stress induced by NaCl to ocean water or aquarium salts [17,36], and reported that a NaCl solution can have 16% more sodium, which can reduce plant quality and growth more dramatically and at lower salinity level.…”

Section: Discussionmentioning

confidence: 99%

“…Vallisneria americana is a key species in many aquatic ecosystems [8][9][10][11][12]. This perennial submersed macrophyte provides food and habitat for fish, mammals, and invertebrates and affects nutrient cycling, sediment stability, and water clarity in lakes and estuaries [13].…”

Section: Introductionmentioning

confidence: 99%

“…Sporadic salinity can occur due to elevation difference from natural saline systems such as the ocean, and such prolonged flooding can have a direct influence on plant survival [15]. Various studies have shown that V. americana can tolerate 5.0 to 15.0 parts per thousand (ppt) salinity [8]. Salt-tolerant ecotypes of V. americana could be useful for restoration of wetlands that are at risk of saltwater intrusion and estuaries that are threatened by sea level rise.…”

Section: Introductionmentioning

confidence: 99%

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Ecotypes of Aquatic Plant Vallisneria americana Tolerate Different Salinity Concentrations

et al. 2020

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Increased salinity caused by saltwater intrusion or runoff from de-icing salts can severely affect freshwater vegetation and deteriorate aquatic ecosystems. These habitats can be restored with freshwater ecotypes (locally adapted populations) that tolerate above-normal salinity. Vallisneria americana is a prominent species in many freshwater ecosystems that responds differently to abiotic conditions such as substrate composition and fertility, so, in this study, we evaluated the effects of salt stress on 24 ecotypes of V. americana. Instant Ocean aquarium salt was used to create saline solutions (0.2 to 20.0 parts per thousand (ppt)), then plants were abruptly exposed to these solutions and maintained in these concentrations for five weeks before being visually assessed for quality and destructively harvested. Analysis of variance and nonlinear regression were used to calculate LC50 values—the lethal concentration of salt that reduced plant biomass and quality by 50% compared to control treatment. Growth rate and visual quality varied significantly among ecotypes, and ecotypes that were most and least sensitive to salt had 50% biomass reductions at 0.47 and 9.10 ppt, respectively. All ecotypes survived 10.0 ppt salinity concentration but none survived at 20.0 ppt, which suggests that the maximum salinity concentration tolerated by these ecotypes is between 15.0 and 20.0 ppt.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ecotypes of Aquatic Plant Vallisneria americana Tolerate Different Salinity Concentrations

et al. 2020

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“…Vallisneria americana is a key species in many aquatic ecosystems [8]. This perennial submersed macrophyte provides food and habitat for fish, mammals, and invertebrates and affects nutrient cycling, sediment stability, and water clarity in lakes and estuaries [9].…”

Section: Introductionmentioning

confidence: 99%

“…Sporadic salinity can occur due to elevation difference from natural saline systems such as the ocean, and such prolonged flooding can have a direct influence on plant survival [11]. Various studies have shown that V. americana can tolerate 5.0 to 15.0 parts per thousand (ppt) salinity [8]. Salt-tolerant ecotypes of V. americana could be useful for restoration of wetlands that are at risk of saltwater intrusion and estuaries that are threatened by sea level rise.…”

Section: Introductionmentioning

confidence: 99%

Ecotypes of Aquatic Plant <em>Vallisneria americana</em> Tolerate Different Salinity Concentrations

Tootoonchi¹,

Gettys²,

Thayer³

et al. 2020

Preprint

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Increased salinity caused by saltwater intrusion or runoff from de-icing salts can severely affect freshwater vegetation and deteriorate aquatic ecosystems. These habitats can be restored with freshwater ecotypes (locally adapted populations) that tolerate above-normal salinity. Vallisneria americana is a prominent species in many freshwater ecosystems that responds differently to abiotic conditions such as substrate composition and fertility, so in this study we evaluated the effects of salt stress on 24 ecotypes of V. americana. Instant Ocean aquarium salt was used to create saline solutions [0.2 to 20.0 parts per thousand (ppt)], then plants were abruptly exposed to these solutions and maintained in these concentrations for 5 weeks before being visually assessed for quality and destructively harvested. Analysis of variance and non-linear regression were used to calculate LC50 values – the lethal concentration of salt that reduced plant biomass and quality by 50% compared to control treatment. Growth rate and visual quality varied significantly among ecotypes, and ecotypes that were most and least sensitive to salt had 50% biomass reductions at 0.47 and 9.10 ppt, respectively. All ecotypes survived 10.0 ppt salinity concentration but none survived at 20.0 ppt, which suggests the maximum salinity concentration tolerated by these ecotypes is between 15.0 and 20.0 ppt.

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Salt tolerance assessment of aquatic and wetland plants: increased salinity can reshape aquatic vegetation communities

et al. 2022

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Tapegrass, Eelgrass, or Wild Celery (Vallisneria americana Michaux): A Native Aquatic and Wetland Plant

Cited by 4 publications

References 9 publications

Ecotypes of Aquatic Plant Vallisneria americana Tolerate Different Salinity Concentrations

Ecotypes of Aquatic Plant Vallisneria americana Tolerate Different Salinity Concentrations

Ecotypes of Aquatic Plant <em>Vallisneria americana</em> Tolerate Different Salinity Concentrations

Salt tolerance assessment of aquatic and wetland plants: increased salinity can reshape aquatic vegetation communities

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