The Mechanism of Salt Tolerance in Halophytes

Flowers, T. J.; Troke, Peter F.; Yeo, A. R.

doi:10.1146/annurev.pp.28.060177.000513

Cited by 1,733 publications

(943 citation statements)

References 75 publications

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“…Although NaCl is the most common salt in saline soils, Na 2 SO 4 and MgSO 4 can also be found at high concentrations in these soils [15]. In addition, MgCl 2 accumulates in extremely saline soils, where Na + is exchanged for Mg 2+ .…”

Section: A C C E P T E Dmentioning

confidence: 99%

Differences in photosynthetic performance and its correlation with growth among tomato cultivars in response to different salts

Nebauer

Sanchez

Martínez

et al. 2013

Plant Physiology and Biochemistry

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ElsevierGonzález Nebauer, S.; Sánchez Perales, M.; Martinez, L.; Lluch Gomez, YP.; Renau Morata, B.; Molina Romero, RV. (2013). Differences in the photosynthetic response of three tomato cultivars to different salinity sources and their effect on vegetative growth parameters. Plant This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. treatments. Cultivar photosynthetic performance related not only to capability for toxic ion exclusion, but also to the maintenance of appropriate essential macronutrient concentrations in leaves. In addition, the role of metabolic and diffusion limitations in regulating photosynthesis varied depending on the studied genotypes. These data, along with variation in biomass and ion distribution in leaves and roots, show that distinct tomato cultivars can address salt tolerance differently, which should be considered when designing strategies to overcome plant sensitivity to salt stress.

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Section: A C C E P T E Dmentioning

confidence: 99%

Differences in photosynthetic performance and its correlation with growth among tomato cultivars in response to different salts

Nebauer

Sanchez

Martínez

et al. 2013

Plant Physiology and Biochemistry

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“…Extremophiles are the plants operating in the most challenging environments [1], such as those dominated by the extreme cold in Antarctica [2], wide temperature swings and extreme drought in deserts [3], or salinity in combination with a broad range of other stresses. This last group, the halophytes, are the best documented [4]; the Kew Gardens database [5] recognizes over 1,500 species. Table 1 summarizes some examples of extremophile transcriptomes and genomes that have been published in recent years, at increasing levels of complexity as new sequencing technologies have become available.…”

mentioning

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Life at the extreme: lessons from the genome

Dassanayake

Bohnert

et al. 2012

Genome Biol

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“…The abundance of these amino acids in mangrove leaves grown under in situ condition supports the view of Bhosale (1985) that the maximum percentage of foliar nitrogen in most mangroves remains coupled with aspartate and alanine. In mangroves, osmotic adjustment is apparently achieved by synthesis of some compatible solutes, which can exist in the cell sap at high concentration without interfering cell metabolism (Flowers et al 1977). Accumulation of such osmoprotectants, especially in the cytosol, chloroplasts and mitochondria minimizes water loss from the leaf cells under salinity stress (Heldt 1999).…”

Section: Discussionmentioning

confidence: 99%

Differential expression of physiological and biochemical characters of some Indian mangroves towards salt tolerance

Nandy

Dasgupta

Das

2009

Physiol Mol Biol Plants

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Mangroves are physiologically interesting as potential models for stress tolerance and as sources of alternative ideas about physiological strategies relevant at the ecosystem level. Variation in habitat has great impact on the physiological behavior and biochemical expression level of a particular plant species. Five species of mangroves, growing in saline and fresh water conditions were assessed for their ecological fitness in two different habitats. Assessments were based on some physiological and biochemical parameters measured from the fully exposed mature leaves under saline (15 -27 PPT) and non-saline (1.2 -2 PPT) conditions. Among the five species considered for investigation Bruguiera gymnorrhiza, Excoecaria agallocha and Phoenix paludosa grow luxuriously in the Sundarbans forest, while the rest two (Heritiera fomes, Xylocarpus granatum) are scanty. A comparative account of photosynthetic efficiency, chlorophyll content, mesophyll and stomatal conductance, specific leaf area, photosynthetic nitrogen use efficiency, total foliar free amino acids and differential expression of some antioxidant isoenzymes in leaf were estimated between the saline and non-saline plants. Elevated assimilation rate coupled with increased chlorophyll content, increased conductance and higher specific leaf area in non-saline condition indicates ability of these mangroves to grow even under minimal substrate salinity. The optimum PAR acquisition for photosynthesis in B. gymnorrhiza, E. agallocha and P. paludosa was higher under salt stress, while the maximum assimilation rate was lower in control plants. The opposite trend occurred in H. fomes and X. granatum, where the peak photosynthesis was lower under non-saline conditions even at a higher irradiance than in the saline forest. The isoform patterns of peroxidase, acid phosphatase and esterase indicated considerable difference in regulation of these enzymes due to salt stress and /or reverse adaptation.

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The Mechanism of Salt Tolerance in Halophytes

Cited by 1,733 publications

References 75 publications

Differences in photosynthetic performance and its correlation with growth among tomato cultivars in response to different salts

Differences in photosynthetic performance and its correlation with growth among tomato cultivars in response to different salts

Life at the extreme: lessons from the genome

Differential expression of physiological and biochemical characters of some Indian mangroves towards salt tolerance

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