A rapid quantification method for tissue Na+ and K+ concentrations in salt-tolerant and susceptible accessions in Vigna vexillata (L.) A. Rich.

Iseki, Kazuo; Marubodee, Rusama; Ehara, Hiroshi; Tomooka, Norihiko

doi:10.1080/1343943x.2016.1251826

Cited by 16 publications

(9 citation statements)

References 23 publications

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“…After the breakdown of the experiment, plants were rinsed with DI water and dried at 60°C for at least 72 h to quantify aboveground and belowground biomass. Sodium uptake levels in C. aquatilis roots and shoots were determined using a plant sodium extraction protocol described by Iseki et al (2017). Roots and shoots were air dried, then ground, and 15-25 mg of sample was weighed.…”

Section: Experimental Designmentioning

confidence: 99%

Structural and functional responses of Carex aquatilis to increasing sodium concentrations

Vitt

Glaeser

House

et al. 2020

Wetlands Ecol Manage

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Carex aquatilis is a widespread boreal species that is abundant in open fens and marshes. The species has broad natural tolerances to differing water levels and ion concentrations including occurrences in brackish marshes but not sodic wetlands. Sandhill Wetland, constructed on Syncrude Canada Ltd. mineral surface lease in the Athabasca Oil Sands Region, is a research site that was engineered to support a self-sustaining wetland. The site is currently in its eighth year post wet-up and is partially dominated by C. aquatilis. Increasing Na+ concentrations in the porewaters at Sandhill Wetland are an on-going concern for the performance of the existing plant communities. Here we examine the responses of C. aquatilis to an increasing regime of sodium carried out in a greenhouse experiment. We posed three questions for this experiment: (1) is there a threshold response for performance of C. aquatilis to increasing sodium, (2) if so, does it occur in the range of sodium that is present at current reclamation programs, and (3) is C. aquatilis resistant to high concentrations of sodium? Carex aquatilis survived all treatment concentrations of sodium including the highest treatment of 2354 mg L− 1. In general, both structural and functional attributes of C. aquatilis did not differ between the 17 and 1079 mg L− 1 treatments; however, performances of all attributes were reduced in the 2354 mg L− 1 treatment. Belowground biomass had greater decreases compared to aboveground components, including both biomass and photosynthesis. The aboveground decreases in performance were associated with exclusion of sodium from the aboveground components by the belowground components. Reduction in photosynthesis was strongly correlated with reduced stomatal conductance and lower transpiration. Although C. aquatilis demonstrated a wide tolerance to sodium concentrations, a clear threshold was present between 1079 and 2354 mg L− 1. These decreases in performance in our greenhouse trials were at levels currently present at Sandhill Wetland, and careful assessment of sodium concentrations in the near future needs to be continued.

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Section: Experimental Designmentioning

confidence: 99%

Structural and functional responses of Carex aquatilis to increasing sodium concentrations

Vitt

Glaeser

House

et al. 2020

Wetlands Ecol Manage

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“…The concentrations of Na + and K + in plants is an indicator of plant tolerance to salt stress. Na + accumulation in leaves can repress photosynthetic enzymes and carbohydrate metabolism, process which induce oxidative damage and cell death (Chaves et al 2009;Iseki et al 2016), pollen sterility and delayed flowering in Cicer arietinum (Pushpavalli et al 2016). Plants have developed a series of salt tolerance mechanisms to avoid these damaging effects.…”

Section: Discussionmentioning

confidence: 99%

Morphological, physiological and biochemical aspects of salt tolerance of halophyte Petrosimonia triandra grown in natural habitat

Podar

Macalik

Réti

et al. 2019

Physiol Mol Biol Plants

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Salt tolerance mechanisms of halophyte Petrosimonia triandra, growing in its natural habitat in Cojocna commune, Cluj county, Romania, were investigated by analysis of biomass, growth parameters, water status, ion content, photosynthetic and antioxidative system efficiency, proline accumulation and lipid degradation. Two sampling sites with different soil electrical conductivities (EC) were selected, site 1: 3.14 dS m-1 and site 2: 4.45 dS m-1. Higher salinity proved to have a positive effect on growth, the relative water content did not decline severely, the Na+ and K+ content of the roots, stem and leaves was larger, the function of photosynthetic apparatus and photosynthetic pigment content were not altered. The efficiency of antioxidative defence system was found to be assured by coordination of several reactive oxygen species scavengers. The presence of higher salinity, lead to accumulation of the osmolyte proline, while degradation of membrane lipids was reduced. As a whole, P. triandra evolved different adaptational strategies to counteract soil salinity, which includes morphological and physiological adaptations, preservation of photosynthetic activity, development of an efficient antioxidative system and accumulation of the osmotic compound, proline.

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“…Some studies focus on correlating sap K concentration to leaf K concentration and do not include correlations to yield. This is often done in exploratory studies examining new analytical methods (Gangaiah et al 2016;He et al 1998;Iseki et al 2017). Eventually, however, each new method must be correlated to yield or some metric of crop performance.…”

Section: Potassium Content In Plant Sapmentioning

confidence: 99%

Evaluating Plant Potassium Status

Murrell

Pitchay

2020

Improving Potassium Recommendations for Agricultural Crops

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Several methods exist for evaluating plant nutritional status. Looking for visual deficiency symptoms is perhaps the simplest approach, but once symptoms appear, crop performance has already been compromised. Several other techniques have been developed. All of them require correlation studies to provide plant performance interpretations. Reflectance is a remote sensing technique that detects changes in light energy reflected by plant tissue. It has proven successful in detecting nutrient deficiencies but does not yet have the ability to discriminate among more than one deficiency. Chemical assays of leaf tissue, known as tissue tests, require destructive sampling but are the standard against which other assessments are compared. Sufficiency ranges provide concentrations of each nutrient that are considered adequate for crop growth and development. They consider nutrients in isolation. Other approaches have been developed to consider how the concentration of one nutrient in tissue impacts the concentrations of other nutrients. These approaches strive to develop guidelines for maintaining nutrient balance within the plant. All approaches require large data sets for interpretation.

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A rapid quantification method for tissue Na⁺ and K⁺ concentrations in salt-tolerant and susceptible accessions in Vigna vexillata (L.) A. Rich.

Cited by 16 publications

References 23 publications

Structural and functional responses of Carex aquatilis to increasing sodium concentrations

Structural and functional responses of Carex aquatilis to increasing sodium concentrations

Morphological, physiological and biochemical aspects of salt tolerance of halophyte Petrosimonia triandra grown in natural habitat

Evaluating Plant Potassium Status

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