Structural and Functional Determinants of Physiological Pliability in Kyllinga brevifolia Rottb. for Survival in Hyper-Saline Saltmarshes

Hameed, Mansoor; Ahmad, Farooq; Ahmad, Muhammad Sajid Aqeel; Ahmad, Iftikhar; Ashraf, Muhammad; Saleem, Muhammad Hamzah

doi:10.1007/s11270-021-05391-x

Cited by 17 publications

(6 citation statements)

References 43 publications

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“…Mineral nutrients are needed for several key metabolic processes, such as plant growth and development, and water status. Adequate accumulation of minerals is vital to safeguard mechanical integrity of the plant and key physiological processes, and any changes in mineral uptake may markedly perturb plant metabolism (Mumtaz et al, 2021;Saleem et al, 2020a). NO has a substantial regulatory influence on the contents of plant mineral nutrients in plants and relieves stress by allocation to sustain those elements.…”

Section: )mentioning

confidence: 99%

Response of cauliflower (Brassica oleracea L.) to nitric oxide application under cadmium stress

Saleem

Alsafran

et al. 2022

Ecotoxicology and Environmental Safety

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Section: )mentioning

confidence: 99%

Response of cauliflower (Brassica oleracea L.) to nitric oxide application under cadmium stress

Saleem

Alsafran

et al. 2022

Ecotoxicology and Environmental Safety

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“…Plants produce a variety of secondary metabolites, such as proline, flavonoids, and phenolics, that improve tolerance against metal toxicity. Although proline accumulation in plant tissue/organs is a response to metal toxicity, it might be associated with signal transduction and plays a role in preventing membrane distortion, which has been observed in many plant species (Saleem et al, 2020b ; Mumtaz et al, 2021 ).…”

Section: Discussionmentioning

confidence: 99%

Individual and combinatorial effects of SNP and NaHS on morpho-physio-biochemical attributes and phytoextraction of chromium through Cr-stressed spinach (Spinacia oleracea L.)

Saleem

Yasin

et al. 2022

Front. Plant Sci.

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Chromium (Cr) is a toxic heavy metal that contaminates soil and water resources after its discharge from different industries. A pot experiment was conducted to determine the effects of single and/or combined application of sodium nitroprusside (SNP) (250 μM) and sodium hydrogen sulfide (NaHS) (1 mM) on growth, photosynthetic pigments, gas exchange characteristics, oxidative stress biomarkers, antioxidant machinery (enzymatic and non-enzymatic antioxidants), ion uptake, organic acid exudation, and Cr uptake of spinach (Spinacia oleracea L.) exposed to severe Cr stress [Cr: 0 (no Cr), 150, and 300 μM]. Our results depicted that Cr addition to the soil significantly (P < 0.05) decreased plant growth and biomass, gas exchange attributes, and mineral uptake by S. oleracea when compared to the plants grown without the addition of Cr. However, Cr toxicity boosted the production of reactive oxygen species (ROS) by increasing the content of malondialdehyde (MDA), which is the indication of oxidative stress in S. oleracea, and was also manifested by hydrogen peroxide (H2O2) content and electrolyte leakage to the membrane-bound organelles. The results showed that the activities of various antioxidative enzymes, such as superoxidase dismutase (SOD), peroxidase (POD), catalase (CAT), and ascorbate peroxidase (APX), and the content of non-enzymatic antioxidants, such as phenolic, flavonoid, ascorbic acid, and anthocyanin, initially increased with an increase in the Cr concentration in the soil. The results also revealed that the levels of soluble sugar, reducing sugar, and non-reducing sugar were decreased in plants grown under elevating Cr levels, but the accumulation of the metal in the roots and shoots of S. oleracea, was found to be increased, and the values of bioaccumulation factor were <1 in all the Cr treatments. The negative impacts of Cr injury were reduced by the application of SNP and NaHS (individually or combined), which increased plant growth and biomass, improved photosynthetic apparatus, antioxidant enzymes, and mineral uptake, as well as diminished the exudation of organic acids and oxidative stress indicators in roots of S. oleracea by decreasing Cr toxicity. Here, we conclude that the application of SNP and NaHS under the exposure to Cr stress significantly improved plant growth and biomass, photosynthetic pigments, and gas exchange characteristics; regulated antioxidant defense system and essential nutrient uptake; and balanced organic acid exudation pattern in S. oleracea.

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“…This might be attributed to the impact of water stress on the physiological cycles in plants, such as photosynthesis, leaf zone extension, nucleic acid metabolism, protein synthesis, and the partitioning of assimilates [30,45,46]. In addition to this water deficiency, decreased photosynthesis restricts the mechanism of cell development and cell enlargement closed stomata [47], eventually reducing the yield [27,48].…”

Section: Discussionmentioning

confidence: 99%

Melatonin as a Foliar Application and Adaptation in Lentil (Lens culinaris Medik.) Crops under Drought Stress

et al. 2022

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Here, we grow two different varieties of lentil (lentil-2009 and lentil-93) under different drought levels and with different applications of melatonin. Increasing the levels of soil water deficit significantly decreased numerous morphological and biochemical characteristics, including shoot length, total chlorophyll content, and transpiration rate, in both varieties of lentil. Contrastingly, drought stress increased the concentrations of malondialdehyde (MDA) and hydrogen peroxide (H2O2), and electrolyte leakage, an indicator of oxidative damage to membrane-bound organelles. The activities of enzymatic antioxidants and osmolytes were initially increased up to a drought level of 80% water field capacity (WFC) but gradually decreased with higher levels of drought stress (60% WFC) in the soil. At the same time, the results also showed that the lentil-2009 is more tolerant to drought stress than lentil-93. The negative impact of drought stress can be overcome by the application of melatonin. Melatonin increased plant growth and biomass, photosynthetic pigments, gas exchange characteristics, and enhanced the activities of various enzymatic and non-enzymatic antioxidants and proline content by decreasing oxidative stress. We conclude that foliar application of melatonin offers new possibilities for promoting lentil drought tolerance.

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Structural and Functional Determinants of Physiological Pliability in Kyllinga brevifolia Rottb. for Survival in Hyper-Saline Saltmarshes

Cited by 17 publications

References 43 publications

Response of cauliflower (Brassica oleracea L.) to nitric oxide application under cadmium stress

Response of cauliflower (Brassica oleracea L.) to nitric oxide application under cadmium stress

Individual and combinatorial effects of SNP and NaHS on morpho-physio-biochemical attributes and phytoextraction of chromium through Cr-stressed spinach (Spinacia oleracea L.)

Melatonin as a Foliar Application and Adaptation in Lentil (Lens culinaris Medik.) Crops under Drought Stress

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