Browsing by Author "Goutam Kumar Dash"

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Efficacy of Seed Priming Technology in Ameliorating Metals and Metalloids Toxicity in Crops: Prospective and Issues
(Springer, 2025) Debojyoti Moulick; S. C. Santra; Arnab Majumdar; Anupam Das; Bhaben Chowardhara; Bedabrata Saha; Dibakar Ghosh; Jayjit Majumdar; Munish Kumar Upadhyay; Poonam Yadav; Sukamal K. Sarkar; S. Garai; Anannya Dhar; Saikat Dey; Sayanti Mandal; Shuvasish Choudhury; Binaya Kumar Pattnaik; Goutam Kumar Dash; Sai Krishna Repalli; Akbar Hossain
Seed priming technology (SP) is a practice (conducted prior to sowing) where seeds are treated with a wide range of seed priming agents (SPA) for a set time period followed by withdrawal. The efficacy of SP has been widely examined against various abiotic and biotic stressors with various crops in controlled field environmental conditions. Among the abiotic stressors, heavy metals and/or metalloids (HMs) are considered as a serious threat to sustainable agriculture. Compared with other stressors, the efficacy of SP in ameliorating HM-induced phytotoxicity and minimizing HMs content in edible parts are limited. However, there is a lack of a comprehensive study dedicated to HMs stress in wide range of crops. This review article employs a blend of bibliometric-based analysis (to assess global trends) followed by systematic evaluation of traditional (micronutrient, biomolecules, etc.) and nanomaterial (NMs)-based SPAs in ameliorating HMs-induced stress and accumulation in various crops. Our assessment suggests SPs as a suitable means to fill the vacuum that exists among the controlled environment and field condition, cost effective, easy remedial measure for HMs-induced stress. However, the need of in-depth (cellular and molecular level) as well as multi-location trials will definitely add to the current knowledge for development of effective HM stress resilience. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.
Emerging concern of nano-pollution in agro-ecosystem: Flip side of nanotechnology
(Elsevier Masson s.r.l., 2024) Debojyoti Moulick; Arnab Majumdar; Abir Choudhury; Anupam Das; Bhaben Chowardhara; Binaya Kumar Pattnaik; Goutam Kumar Dash; Kanu Murmu; Karma Landup Bhutia; Munish Kumar Upadhyay; Poonam Yadav; Pradeep Kumar Dubey; Ratul Nath; Sidhu Murmu; Soujanya Jana; Sukamal Sarkar; Sourav Garai; Dibakar Ghosh; Mousumi Mondal; Subhas Chandra Santra; Shuvasish Choudhury; Koushik Brahmachari; Akbar Hossain
Nanomaterials (NMs) have proven to be a game-changer in agriculture, showcasing their potential to boost plant growth and safeguarding crops. The agricultural sector has widely adopted NMs, benefiting from their small size, high surface area, and optical properties to augment crop productivity and provide protection against various stressors. This is attributed to their unique characteristics, contributing to their widespread use in agriculture. Human exposure from various components of agro-environmental sectors (soil, crops) NMs residues are likely to upsurge with exposure paths may stimulates bioaccumulation in food chain. With the aim to achieve sustainability, nanotechnology (NTs) do exhibit its potentials in various domains of agriculture also have its flip side too. In this review article we have opted a fusion approach using bibliometric based analysis of global research trend followed by a holistic assessment of pros and cons i.e. toxicological aspect too. Moreover, we have also tried to analyse the current scenario of policy associated with the application of NMs in agro-environment. © 2024 Elsevier Masson SAS
Recent Advances in Multi-Omics and Breeding Approaches Towards Drought Tolerance in Crops
(Springer Singapore, 2021) Akankhya Guru; Soumya Kumar Sahoo; Goutam Kumar Dash; Jagadish Jena; Padmanabh Dwivedi
Drought is one of the major abiotic stresses that affect plant growth and survival. It alters morphological, biochemical, and molecular processes in plant cells. The implementation of multi-omics and improved breeding strategies is a dynamic step towards drought tolerance in crop plants. The identification of several drought-responsive genes, differentially expressed transcripts, proteins, metabolites, and miRNAs associated with drought responses has become possible through genomics, transcriptomics, metabolomics, proteomics, micromics, and phenomics, etc. Investigations on the latest omics technologies will provide us with an overall idea of the pathways involved in drought tolerance. Additionally, GWAS and QTL mapping have made an impressive contribution to improving plant responses to water-deficit conditions. This chapter discussed how various omics tools and breeding technologies enable plants to withstand the devastating effects of drought stress. © The Editor(s) (if applicable) and The Author(s), under exclusive licence to Springer Nature Singapore Pte Ltd. 2021.
Unlocking the Nexus between Leaf-Level Water Use Efficiency and Root Traits Together with Gas Exchange Measurements in Rice (Oryza sativa L.)
(MDPI, 2022) Ramasamy Gobu; Goutam Kumar Dash; Jai Prakash Lal; Padmini Swain; Anumalla Mahender; Annamalai Anandan; Jauhar Ali
Drought stress severely affects plant growth and development, causing significant yield loss in rice. This study demonstrates the relevance of water use efficiency with deeper rooting along with other root traits and gas exchange parameters. Forty-nine rice genotypes were evaluated in the basket method to examine leaf-level water use efficiency (WUEi) variation and its relation to root traits. Significant variation in WUEi was observed (from 2.29 to 7.39 µmol CO2 mmol−1 H2 O) under drought stress. Regression analysis revealed that high WUEi was associated with higher biomass accumulation, low transpiration rate, and deep rooting ratio. The ratio of deep rooting was also associated with low internal CO2 concentration. The association of deep rooting with lower root number and root dry weight suggests that an ideal drought-tolerant genotype with higher water use efficiency should have deeper rooting (>30% RDR) with moderate root number and root dry weight to be sustained under drought for a longer period. The study also revealed that, under drought stress conditions, landraces are more water-use efficient with superior root traits than improved genotypes. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.