Effects of NaCl salinity on growth, morphology, photosynthesis and proline accumulation of Salvinia natans

Jampeetong, Arunothai; Brix, Hans

doi:10.1016/j.aquabot.2009.05.003

Cited by 144 publications

(78 citation statements)

References 30 publications

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“…In the present study, total chlorophyll pigment content decreased with increasing NaCl concentrations, resulting in decreased photosynthetic rate (Table 1). These results corroborate other studies, that indicate that plants subjected to increased salinity show decreased photosynthetic pigments (Aghaleh et al, 2009;Centritto et al, 2003;Chaves et al, 2009;Jampeetong & Brix, 2009;Netondo et al, 2004). In addition, increases in chlorophyll a, carotenoids and the chlorophyll a/chlorophyll b ratio with increasing salinity were also observed, whereas chlorophyll b content decreased (Table 1).…”

Section: Discussionsupporting

confidence: 91%

“…In the present study, the decreases in K + content compared to the controls probably occurred as a consequence of the antagonistic relationship between same-charged ions, as well as the competition between Na + and K + during nutrient absorption (Niaz & Rasul, 1998;Niu et al, 1995). Consequently, the Na + /K + ratio also increased with increasing salinity, corroborating other reports (Jampeetong & Brix, 2009). This decrease in K + content and increase of the Na + /K + ratio in the cytosol is characteristic of Na-induced toxicity (Maathuis & Amtmann, 1999).…”

Section: Discussionsupporting

confidence: 91%

“…According to Esteves & Suzuki (2008), excess salinity also reduces Mg 2+ absorption by plants, corroborated herein. Decreases in Mg 2+ content have also been described in other species, such as E. crassipes and P. stratiotes (Niaz & Rasul, 1998), Hydrilla verticillata (Rout & Shaw, 2001), Typha domingensis (Esteves & Suzuki, 2008) and S. natans (Jampeetong & Brix, 2009) subjected to different salinity concentrations.…”

Section: Discussionmentioning

confidence: 66%

“…Decrease in nitrogen uptake in roots have been attributed to the ionic antagonism between NH 4 + and Na + (Naidoo, 1987) or Cl -and NO 3 - (Parida & Das, 2004). On the other hand, Jampeetong & Brix (2009) observed an increase in N content in the leaves and a decrease in the roots of S. natans at concentrations of 50, 100 and 150 mmol L -1 NaCl. Several studies have shown proline synthesis and accumulation in response to salt stress (Ahmad et al, 2012;Cheng et al, 2013;Singh et al, 2015).…”

Section: Discussionmentioning

confidence: 97%

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Salinity effects on photosynthetic pigments, proline, biomass and nitric oxide in Salvinia auriculata Aubl.

et al. 2017

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Cite as: Gomes, M.A.C. et al. Salinity effects on photosynthetic pigments, proline, biomass and nitric oxide in Salvinia auriculata Aubl. Acta Limnologica Brasiliensia, 2017, vol. 29, e9. Abstract: Aims: Effects of salt stress on the physiology of Salvinia auriculata were investigated. Method: Plants were supplemented with 0, 50, 100 and 150 mmol L -1 NaCl and incubated for 5 days. NO content was evaluated after 2 hours and 5 days. Photosynthetic pigments, proline and nutrients were analyzed after 5 days. Major Results: Higher chlorophyll a content was observed in plants treated with 50 mmol L -1 , decreasing in higher NaCl concentrations, while chorophyll b content decreased with increasing NaCl concentrations. Exposure to 50 mmol L -1 NaCl increased biomass, while higher concentrations caused loss of biomass. Ca, K and Mg decreased with increasing NaCl concentrations, and the Na/K ratio was significantly increased at 150 mmol L -1 NaCl. Proline increased significantly at 150 mmol L -1 . Extracellular NO content increased after 2 hours, with significantly higher NO concentrations in roots observed at 50 mmol L -1 . Decreases in NO content were observed after 5 days. Conclusions: The results indicate that moderate salinity induces NO production earlier during incubation, probably associated to signaling for the production of compounds that assist in stress tolerance. At higher concentrations, this tolerance is reduced. This allows for further understanding of the physiological and biochemical mechanisms associated with the adaptation of this macrophyte to saline conditions, which, in turn, affect this species ecology and distribution in coastal areas.Keywords: Salvinia auriculata; salinity stress; nitric oxide; clorophyll; NaCl; macrophyte.Resumo: Objetivos: Efeitos do estresse salino sobre a fisiologia de Salvinia auriculata foram investigados. Metodologia: As plantas foram expostas a 0, 50, 100 e 150 mmol de NaCl L -1 e incubadas durante 5 dias. O conteúdo de NO foi avaliado após 2 horas e 5 dias. Pigmentos fotossintéticos, prolina e nutrientes foram analisados após 5 dias. Resultados Principais: Observou-se maior teor de clorofila a em plantas tratadas com 50 mmol L -1

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 66%

Section: Discussionmentioning

confidence: 97%

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Salinity effects on photosynthetic pigments, proline, biomass and nitric oxide in Salvinia auriculata Aubl.

et al. 2017

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“…For the analysis of growth, the intact plants were recovered from Al doses, washed thoroughly with deionized water and made completely dry under 80°C for 5 days for constant weights. On completion, the dried plants were recorded weights and computed relative growth rate (RGR) following Jampeetong and Brix (2009).…”

Section: Plant Materialsmentioning

confidence: 99%

Antioxidative responses of Salvinia (Salvinia natans Linn.) to aluminium stress and it’s modulation by polyamine

Mandal

Ghosh

Maiti

et al. 2012

Physiol Mol Biol Plants

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Antioxidative stress response of free-floating aquatic fern (Salvinia natans Linn.) was studied under increasing toxic amount of aluminium (Al) and its modulation by exogenous application of polymaine. Increased levels of superoxide (O 2 − ) and hydrogen peroxide (H 2 O 2 ) species from affected tissues suggested that plants were undergoing oxidative stress and it was concominant with increased accumulation of Al in a dose dependent manner. Application of polyamine like putrescine (Put) led to a decrease in oxidative stress as revealed by reduced level of O 2 − and H 2 O 2 . Al toxicity resulted into decreased biomass that was ameliorated by the application of Put. The changes observed in lipid peroxidation (MDA) and protein oxidation also indicated that plats are undergoing Al induced oxidative stress. In order to circumvent the oxidative stress resulting from Al toxicity, plants enzymatic and nonenzymatic antioxidant pathways were active. The ratio of both oxidized and reduced cellular glutathione exhibited significant variation in response to Al stress and was improved upon Put treatment. Peroxidase and glutathione were upregulated whereas catalse was downregulated under varying doses of Al. Isozyme profile of above enzymes also showed a trend with increasing amount of Al. The nuclear disintegration study using comet assay was indicative of Al induced oxidative stress. In the present study, we have explored the antioxidative response of aquatic fern Salvinia natans Linn in response to Al toxicity. The application of polyamine Put improved the overall antioxidative response and thus would make it a better candidate to be used as hyper accumulator of Al and other toxic metals.

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Effects of Ammonia Nitrogen and Sediment Nutrient on Growth of the Submerged Plant Vallisneria natans

Zhu

Yuan

Wei

et al. 2014

CLEAN Soil Air Water

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In order to investigate the impacts of ammonia nitrogen concentration and the necessity of dredging, five levels of ammonia nitrogen including 0, 2, 4, 8, and 16 mg L−1 and two levels of sediments nutriments (high and low) were treated. The total biomass, leaf, root, and flower biomasses were selected as the growth indicators, while total chlorophyll (i.e., chl‐a and ‐b), malondialdehyde (MDA), and free proline as subsidiary physiological index. When ammonia‐N contents of the water column were 8–16 mg L−1, the total biomass of Vallisneria natans in the first harvest is higher than those in the second harvest, and the total chlorophyll concentration, MDA and free proline of the plants became significantly low. It indicates that high ammonia nitrogen (>8 mg L−1) of the water column inhibit the growth of V. natans. The total biomass, the total chlorophyll concentration of plants in the high nutrient sediment is higher than those in the low nutrient sediment, suggesting that high sediments nutrient promote the growth of V. natans. Therefore, using V. natans for water ecological restoration, the water should meet the ammonia nitrogen content of <8 mg L−1. Moreover, dredging eutrophication sediment is probably not necessary.

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Effects of NaCl salinity on growth, morphology, photosynthesis and proline accumulation of Salvinia natans

Cited by 144 publications

References 30 publications

Salinity effects on photosynthetic pigments, proline, biomass and nitric oxide in Salvinia auriculata Aubl.

Salinity effects on photosynthetic pigments, proline, biomass and nitric oxide in Salvinia auriculata Aubl.

Antioxidative responses of Salvinia (Salvinia natans Linn.) to aluminium stress and it’s modulation by polyamine

Effects of Ammonia Nitrogen and Sediment Nutrient on Growth of the Submerged Plant Vallisneria natans

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