Comparative Metabolomics Approach Towards Understanding Chemical Variation in Rice Under Abiotic Stress

Pradhan, Amit Kumar; Shandilya, Zina Moni; Lahkar, Lipika; Hasnu, Sneha; Kalita, Jyotirmay; Borgohain, Dharitri; Tanti, Bhaben

doi:10.1016/b978-0-12-814332-2.00026-5

Cited by 10 publications

(3 citation statements)

References 76 publications

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“…In the cold acclimation process, active reconfiguration of the metabolome seems to be achieved in part by changes in cold‐regulated gene expression initiated by signaling cascade, such as the CBF cold response pathway in Arabidopsis (Cook et al., 2004; Guy et al., 2008), changes in transcript abundance, and regulatory processes independent of transcript abundance (Kaplan et al., 2007). Comparative metabolomic studies in major staple crops such as wheat, rice, and maize have shown quantitative and qualitative differences in primary metabolites involved in osmoprotection after exposure to cold stress (Pradhan et al., 2019; Sun et al., 2016; Yang et al., 2019; Zhao et al., 2021).…”

Section: Advances In Omics Approaches For Uncovering Cold Tolerance I...mentioning

confidence: 99%

Advances and opportunities in unraveling cold‐tolerance mechanisms in the world's primary staple food crops

Jan,

Rustgi,

Barmukh

et al. 2023

The Plant Genome

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Temperatures below or above optimal growth conditions are among the major stressors affecting productivity, end‐use quality, and distribution of key staple crops including rice (Oryza sativa), wheat (Triticum aestivum), and maize (Zea mays L.). Among temperature stresses, cold stress induces cellular changes that cause oxidative stress and slowdown metabolism, limit growth, and ultimately reduce crop productivity. Perception of cold stress by plant cells leads to the activation of cold‐responsive transcription factors and downstream genes, which ultimately impart cold tolerance. The response triggered in crops to cold stress includes gene expression/suppression, the accumulation of sugars upon chilling, and signaling molecules, among others. Much of the information on the effects of cold stress on perception, signal transduction, gene expression, and plant metabolism are available in the model plant Arabidopsis but somewhat lacking in major crops. Hence, a complete understanding of the molecular mechanisms by which staple crops respond to cold stress remain largely unknown. Here, we make an effort to elaborate on the molecular mechanisms employed in response to low‐temperature stress. We summarize the effects of cold stress on the growth and development of these crops, the mechanism of cold perception, and the role of various sensors and transducers in cold signaling. We discuss the progress in cold tolerance research at the genome, transcriptome, proteome, and metabolome levels and highlight how these findings provide opportunities for designing cold‐tolerant crops for the future.

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Section: Advances In Omics Approaches For Uncovering Cold Tolerance I...mentioning

confidence: 99%

Advances and opportunities in unraveling cold‐tolerance mechanisms in the world's primary staple food crops

Jan,

Rustgi,

Barmukh

et al. 2023

The Plant Genome

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“…Groundwater is one of the popular means of irrigation and used widely across India (Hore et al, 2017;Nahar et al, 2016). However, the use of groundwater for irrigation exposes the crops to the danger of being contaminated by toxic heavy metals, such as arsenic (Lahkar et al, 2019;Pradhan et al, 2019;. Arsenic is present in soil in the form of minerals, such as realgar and arsenopyrite, where its content is mostly dependent on the parent rock (Mandal & Suzuki, 2002).…”

Section: Introductionmentioning

confidence: 99%

Screening of Some Traditional Rice Cultivars of Assam, India, for Their Response to Arsenic-Induced Abiotic Stress

Kalita

Tanti

2020

Acta Agrobot

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Rice is the staple food of more than 700 million people in the world and the most important food crop in Assam, India. However, the metalloid arsenic, which is widespread in the groundwater of many parts of Assam, adversely affects the productivity of different crops, including rice. In this study, seedlings of 23 different traditional rice cultivars were subjected to 0.5 mg/L (low) and 0.8 mg/L (high) arsenic under hydroponic conditions, and various growth parameters (viz., relative water content, shoot length, root length, shoot fresh weight, root fresh weight, shoot dry weight, root dry weight, and chlorophyll a, chlorophyll b, and total chlorophyll content) were recorded. The cultivars showed varying degrees of susceptibility, as observed by the changes in the different morphological and physiological parameters under arsenic-induced stress. The calculated stress response indices revealed that the cultivar ‘Monasali’ had the best overall tolerance at the high arsenic concentration, whereas ‘Biyoi Sali,’ ‘Baismuthi,’ and ‘Bora’ were most susceptible. On the basis of these observations, ‘Monasali’ was determined as an arsenic-tolerant cultivar, but further biochemical and molecular studies are needed to verify this.

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“…In this context, it is equally important to think about soil health status, which is being impacted due to various abiotic factors caused by climatic changes. Efforts are being made to understand the complex processes of agro-ecosystems and the various interactions governing the sustainability of agricultural lands [11]. However, it is becoming clear that conventional agricultural practices cannot sustain the production base to maintain a healthy plant/ soil system indefinitely and, as such, augment crop productivity.…”

Section: Introductionmentioning

confidence: 99%

Hydroponic screening of traditional rice varieties in Assam, India to estimate their potential resistance to Al toxicity under P deficiency

Shandilya

Tanti

2019

Acta Agrobot

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Acid soils encompass nearly one-third of the available terrestrial land surface worldwide. Acidic soil is one of the major abiotic constraints for agricultural practices by potentially creating aluminum (Al) toxicity and/or phosphorous (P) deficiency. Assam, being an agricultural state of India, has the majority of its area covered by acidic soils due to the varied terrain in the region. Soil acidification increases the solubility of Al present in the soil from its nontoxic silicate or oxide forms into highly phytotoxic ionic Al (mainly the trivalent cation Al<sup>3+</sup>). Ionic Al can form complexes with the available phosphorous leading to plant nutrient deficiency. In the present investigation, screening of traditional rice varieties from Assam was conducted for tolerance to combined Al toxicity and P deficiency. Seedlings of 41 rice landraces from various agro-climatic locations were subjected to three different concentrations of Al (0, 50, 100 µM) for 24, 48, and 72 h under P deficiency in static nutrient culture to identify the extent of their resistance to these stressed conditions. Different morpho-physiological parameters (root and shoot lengths, fresh and dry weight yields, chlorophyll and relative water content) were evaluated after stress treatment. All the experiments were conducted in a randomized block design with three replicates. Based on the overall morphological characters, total stress response index (TSRI) was calculated which showed a variation ranging from 18 to 23. Accordingly, the varieties were classified into different groups of resistance. Varieties ‘Moti’ and ‘Baismuthi’ were found to be the least resistant, whereas ‘Holpuna’, ‘Beto’, and ‘Soria Sali’ were identified as most tolerant varieties to Al toxicity under P deficiency. The findings of the present investigation could be exploited for developing promising varieties in future rice breeding programs.

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Comparative Metabolomics Approach Towards Understanding Chemical Variation in Rice Under Abiotic Stress

Cited by 10 publications

References 76 publications

Advances and opportunities in unraveling cold‐tolerance mechanisms in the world's primary staple food crops

Advances and opportunities in unraveling cold‐tolerance mechanisms in the world's primary staple food crops

Screening of Some Traditional Rice Cultivars of Assam, India, for Their Response to Arsenic-Induced Abiotic Stress

Hydroponic screening of traditional rice varieties in Assam, India to estimate their potential resistance to Al toxicity under P deficiency

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