Short Term Influence of Salinity on Uptake of Phosphorus by Ipomoea aquatica

Khan, Md. Zulfikar; Islam, Md. Ariful; Azom, Md. Golam; Amin, Mohammad

doi:10.9734/ijpss/2018/44822

Cited by 6 publications

(12 citation statements)

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“…However, it was observed that P presents a significant decrease for the two treatments except during treatment S2 in the aerial part. It is well documented that P is a major element for the shoot and root growth and low-P uptake under salt stress could induce a reduction in biomass development (Navarro et al 2001;Demiral 2017;Khan et al 2018). Also, it has been reported that reduction in growth under salt stress could be attributed to a nutritional imbalance and excessive Na + uptake (Hand et al 2017;Isayenkov and Maathuis 2019).…”

Section: Resultsmentioning

confidence: 99%

Salt stress affects mineral nutrition in shoots and roots and chlorophyll a fluorescence of tomato plants grown in hydroponic culture

Loudari

Benadis

Naciri

et al. 2020

Journal of Plant Interactions

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Section: Resultsmentioning

confidence: 99%

Salt stress affects mineral nutrition in shoots and roots and chlorophyll a fluorescence of tomato plants grown in hydroponic culture

Loudari

Benadis

Naciri

et al. 2020

Journal of Plant Interactions

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“…Approximately 60% of the isolates were able to solubilize phosphate or produce siderophores, and 44 isolates (~37%), identified as Bacillus aryabhattai, B. australimaris, B. cereus, B. horneckiae, B. hwajinpoensi, B. tianshenii, Halomonas titanicae, Kocuria palustris, Kushneria phyllosphaerae, Micrococcus aloeverae, Oceanobacillus picturae, Providencia rettgeri, Pseudomonas juntendi, P. oryzihabitans, Psychrobacter faecalis, Salinicola endophyticus, Sporosarcina luteola, Staphylococcus epidermidis, S. xylosus and Stenotrophomonas rhizophila, could do both (Appendix A, Table A1). Phosphorus (P) is the least accessible macronutrient for plants due to the propensity to form insoluble complexes with cations, and in saline soils, P is even less available [75,81,82]. Phosphate-solubilizing bacteria can improve the uptake of P by the roots through the production of organic acids [83], and EPS have a synergistic effect by holding free P in the medium [84].…”

Section: Discussionmentioning

confidence: 99%

“…IAA production and ACC-deaminase are two of the most valued plant-growth promoting traits and are considered as requirements for endophytic and rhizospheric competence [94]. One common effect is the increase in root length, surface area, and root hair density, improving the access to soil nutrients under stress conditions [64,81]. IAA production was detected in 54 isolates (45%), and six of them produced moderate to high amounts of IAA, ranging from 40 µL mL −1 to over 72 µL mL −1 .…”

Section: Discussionmentioning

confidence: 99%

The Root Microbiome of Salicornia ramosissima as a Seedbank for Plant-Growth Promoting Halotolerant Bacteria

et al. 2021

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Root−associated microbial communities play important roles in the process of adaptation of plant hosts to environment stressors, and in this perspective, the microbiome of halophytes represents a valuable model for understanding the contribution of microorganisms to plant tolerance to salt. Although considered as the most promising halophyte candidate to crop cultivation, Salicornia ramosissima is one of the least-studied species in terms of microbiome composition and the effect of sediment properties on the diversity of plant-growth promoting bacteria associated with the roots. In this work, we aimed at isolating and characterizing halotolerant bacteria associated with the rhizosphere and root tissues of S. ramosissima, envisaging their application in saline agriculture. Endophytic and rhizosphere bacteria were isolated from wild and crop cultivated plants, growing in different estuarine conditions. Isolates were identified based on 16S rRNA sequences and screened for plant-growth promotion traits. The subsets of isolates from different sampling sites were very different in terms of composition but consistent in terms of the plant-growth promoting traits represented. Bacillus was the most represented genus and expressed the wider range of extracellular enzymatic activities. Halotolerant strains of Salinicola, Pseudomonas, Oceanobacillus, Halomonas, Providencia, Bacillus, Psychrobacter and Brevibacterium also exhibited several plant-growth promotion traits (e.g., 3-indole acetic acid (IAA), 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase, siderophores, phosphate solubilization). Considering the taxonomic diversity and the plant-growth promotion potential of the isolates, the collection represents a valuable resource that can be used to optimize the crop cultivation of Salicornia under different environmental conditions and for the attenuation of salt stress in non-halophytes, considering the global threat of arable soil salinization.

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“…In contrast to N, the main sources of P in the lithosphere are the rock deposits [77] , although H 2 PO 4 − is taken up to a greater extent [88,89]. Exposure to high salinity resulted in significant decrease in P levels in green chireta, Andrographis paniculata [14]; cabbage, Brassica oleracea [19]; canola, Brassica napus [78]; pistachio, Pistacia vera [63]; saltmarsh grass, Spartina alterniflora [65]; and spinach, Ipomoea aquatica [90]. The salt stress had been found to magnify the adverse effects on the uptake of P by plants in several studies when plants were exposed simultaneously to both salinity and drought [19,65].…”

Section: Phosphorusmentioning

confidence: 99%

Salt Stress in Plants and Amelioration Strategies: A Critical Review

Roy¹,

Chowdhury²

2021

Abiotic Stress in Plants

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High salt concentration in soil is a major abiotic stress, which adversely influences the growth, overall development, and productivity of crops. More than 20% of the land of the world used for crop production is adversely affected by high salt concentration. The problem of salt stress becomes a major concern when previously fertile, productive agricultural lands are salinized more profoundly as a result of anthropogenic activities along with natural causes. Therefore, this review is focused on various aspects of salt-affected soils (SAS), their effects on plants, and different approaches for reclamation of SAS to enhance the potentiality for crop production. Salt-affected soils are categorized into saline, saline-sodic, and sodic soils based on the amount of total soluble salts as expressed by electrical conductivity (EC), sodium adsorption ratio (SAR), exchangeable sodium percentage (ESP), and soil pH. The inhibition of plant growth in saline soils is mainly induced by osmotic stress; reduced uptake of essential macro-and micronutrients, including nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), iron (Fe), manganese (Mn), zinc (Zn), and copper (Cu); and specific toxicities of sodium (Na) and chloride (Cl). Sodic soils adversely affect the plant through high soil pH and poor physical condition resulting from an excessive amount of exchangeable Na. Different plants respond to salt stress in different extents. Saltaffected soils must be reclaimed to restore their productivity for increasing food production. The approaches for the management of SAS include leaching, incorporation of different organic and inorganic amendments, mulching, and development of salt-tolerant crops. The suitability of approaches depends on several considerations such as cost of reclamation, the time required, the extent of the salt stress, soil properties, availability of technology, and other environmental factors. Among different strategies, the incorporation of organic amendments is beneficial, costeffective, environment friendly, and sustainable for amelioration of salt stress and enhancement of crop production due to the extensive roles of organic amendments in improving the soil's physical (structural stability, porosity, and permeability), chemical [pH, EC, ESP, organic matter, cation exchange capacity (CEC), and Na leaching], and biological and/or biochemical (microbial abundance, microbial activity, biomass carbon, and enzymatic activities) properties.

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Short Term Influence of Salinity on Uptake of Phosphorus by Ipomoea aquatica

Cited by 6 publications

References 0 publications

Salt stress affects mineral nutrition in shoots and roots and chlorophyll a fluorescence of tomato plants grown in hydroponic culture

Salt stress affects mineral nutrition in shoots and roots and chlorophyll a fluorescence of tomato plants grown in hydroponic culture

The Root Microbiome of Salicornia ramosissima as a Seedbank for Plant-Growth Promoting Halotolerant Bacteria

Salt Stress in Plants and Amelioration Strategies: A Critical Review

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