Zinc Deficiency-Induced Differential Biochemical Responses of Zinc-Efficient and Zinc-Inefficient Rice Plants

Kumar, Vijay; Gupta, Roshani; Tewari, Rajesh Kumar

doi:10.1007/s42729-022-01001-9

Cited by 9 publications

(2 citation statements)

References 51 publications

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“…Dichlorodihydrofluorescein diacetate (H 2 DCF-DA) was employed for the qualitative assessment of H 2 O 2 accumulation ( Kumar et al., 2022 ). For this purpose leaf peels of different treatment groups were immersed in buffer (5 mM MES-KOH, pH 5.8, 5 mM CaCl 2, 0.5 mM sorbitol) containing 10 mM H 2 DCF-DA, incubated at RT in dark condition for 30 min, and then washed three times with 5 mM MES buffer (pH 5.8) and were mounted slides using same buffer.…”

Section: Methodsmentioning

confidence: 99%

Phytofabricated gold nanoparticles as modulators of salt stress responses in spinach: implications for redox homeostasis, biochemical and physiological adaptation

Amir,

Raheem,

Yadav

et al. 2024

Front. Plant Sci.

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IntroductionThe utilization of plant material for synthesizing nanoparticles effectively triggers physiological and biochemical responses in plants to combat abiotic stresses. Salt stress, particularly caused by NaCl, significantly affects plant morphology and physiology, leading to reduced crop yields. Understanding the mechanisms of salt tolerance is crucial for maintaining crop productivity.MethodsIn this study, we examined the effects of 150 μM spinach-assisted gold nanoparticles (S-AuNPs) on various parameters related to seed germination, growth attributes, photosynthetic pigments, stomatal traits, ion concentrations, stress markers, antioxidants, metabolites, and nutritional contents of spinach plants irrigated with 50 mM NaCl.ResultsResults showed that S-AuNPs enhanced chlorophyll levels, leading to improved light absorption, increased photosynthates production, higher sugar content, and stimulated plant growth under NaCl stress. Stomatal traits were improved, and partially closed stomata were reopened with S-AuNPs treatment, possibly due to K+/Na+ modulation, resulting in enhanced relative water content and stomatal conductance. ABA content decreased under S-AuNPs application, possibly due to K+ ion accumulation. S-AuNPs supplementation increased proline and flavonoid contents while reducing ROS accumulation and lipid peroxidation via activation of both non-enzymatic and enzymatic antioxidants. S-AuNPs also regulated the ionic ratio of K+/Na+, leading to decreased Na+ accumulation and increased levels of essential ions in spinach plants under NaCl irrigation.DiscussionOverall, these findings suggest that S-AuNPs significantly contribute to salt stress endurance in spinach plants by modulating various physiological attributes.

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Section: Methodsmentioning

confidence: 99%

Phytofabricated gold nanoparticles as modulators of salt stress responses in spinach: implications for redox homeostasis, biochemical and physiological adaptation

Amir,

Raheem,

Yadav

et al. 2024

Front. Plant Sci.

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“…Plants of the poaceae family (strategy II) exudate an enhanced level of PS near the root under Fe-de cient conditions(Römheld and Marschner 1986;Takagi et al 1988). PS facilitates the absorption of Fe and Zn by the roots(Kumar et al 2022;Wirén et al 1994). Plants produce a surplus amount of phytosiderophore (PS) in under Fe-de cient conditions.…”

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confidence: 99%

A comparative study on the efficacy of synthetic organic ligands on functional iron status in plants

Gupta,

Kumar,

Verma

et al. 2024

Preprint

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Improving functional Fe status through the application of Fe with synthetic organic ligands is a strategy to overcome the Fe-deficiency problem. The study emphasizes on the potential efficiency of different selected synthetic organic ligands (Fe-EDTA, Fe-EDDHA, Fe-Citrate) and compare their effectiveness in improving functional Fe status by biochemical means and how wheat responds to different Fe ligands at a lower supply of Fe supply, 25 µM (c.f. 150 µM in maize) under hydroponics. Wheat (Triticum aestivum) and maize (Zea mays) plants grown under a hydroponic system. Fe was supplied as either FeCl3 or in complex with organic ligands, viz., EDTA, EDDHA, and citrate. Wheat plants exhibited improved functional Fe status, as indicated by high chlorophyll and carotenoids concentrations, lipid peroxidation, and ferric chelate reductase activity in Fe-EDTA and Fe-Citrate-supplied plants. Interveinal chlorosis along with mildly increased superoxide dismutase activity was observed in FeCl3, and Fe-EDDHA-supplied plants. Chlorotic leaves of Fe-EDDHA show a decrease in lipid peroxidation, highlighting the role of Fe in chlorophyll biosynthesis and lipid peroxidation in wheat plants. Fe-EDDHA was found to be an inefficient Fe supplier for wheat too, as indicated by decreased growth with a low shoot Fe concentration (c.f. maize at 150 µM supply). Both maize and wheat are strategy II plants, but wheat is more efficient than maize plants. Fe-EDTA and Fe-Citrate have been proven to be effective Fe-suppliers in comparison to Fe-EDDHA and FeCl3 in wheat plants. Fe-EDDHA is a poor Fe supplier in hydroponic systems as EDDHA forms a strong complex with Fe and its aromatic and hydrophobic nature.

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Micronutrient deficiency-induced oxidative stress in plants

Gupta,

Verma,

Tewari

2024

Plant Cell Rep

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Zinc Deficiency-Induced Differential Biochemical Responses of Zinc-Efficient and Zinc-Inefficient Rice Plants

Cited by 9 publications

References 51 publications

Phytofabricated gold nanoparticles as modulators of salt stress responses in spinach: implications for redox homeostasis, biochemical and physiological adaptation

Phytofabricated gold nanoparticles as modulators of salt stress responses in spinach: implications for redox homeostasis, biochemical and physiological adaptation

A comparative study on the efficacy of synthetic organic ligands on functional iron status in plants

Micronutrient deficiency-induced oxidative stress in plants

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