Browsing by Author "Aparna Pandey"

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An Appraisal of Ancient Molecule GABA in Abiotic Stress Tolerance in Plants, and Its Crosstalk with Other Signaling Molecules
(Springer, 2023) Mohammad Suhel; Tajammul Husain; Aparna Pandey; Samiksha Singh; Nawal Kishore Dubey; Sheo Mohan Prasad; Vijay Pratap Singh
Gamma-aminobutyric acid (GABA), a non-proteinaceous amino acid, is reported in prokaryotes and eukaryotes, since ancient times. However, it has gained attention in the present time because of its rapid accumulation during stressed conditions in plants as well as in the cyanobacteria. In plants, it regulates the number of physiological processes such as pollen tube growth, root growth, TCA cycle, N2-metabolism, and osmoregulation. Several biotic and abiotic stresses prevail in the environment, which lead to enhanced accumulation of reactive oxygen species (ROS) thus causing oxidative damage. However, a rapid increase in the accumulation of GABA during stress in various plant forms like bacteria, cyanobacteria, fungi, and plants indicates its putative role in stress regulation and acclimation. This review summarizes the biosynthesis of GABA, its role in abiotic stress tolerance, and its crosstalk with ROS, nitric oxide, Ca+2 ions, phytohormones, and polyamines in stress acclimation. © 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
An introduction of parthenium hysterophorus to be boon for agricultural land: Under heavy metal contamination
(Plant Archives, 2020) Madhulika Singh; Pratibha Singh; Rajiv Kumar Singh; Pankaj Kumar Singh; Sheo Mohan Prasad; Aparna Pandey
Recently, the contamination of agricultural land possesses major threats to human health and the environment. The catastrophic events comprising geologic activities and anthropogenic activities leave every year a huge amount of nutrient/metal ions in agricultural land/water bodies, they remain in soil for many years and are the potential cause of phytotoxicity or poisoning of the food chain. Generally metal ions are essential in trace amount for the normal development of animals and plants but become toxic when accumulated at higher concentrations. Among the number of practices, phytoremediation was initially proposed as an environmental cleanup technology for the remediation of metal contaminated land. © 2020 Plant Archives. All rights reserved.