Genomics Associated Interventions for Heat Stress Tolerance in Cool Season Adapted Grain Legumes

Kumar, Jitendra; Mir, Reyazul Rouf; Shafi, Safoora; Gupta, Debjyoti Sen; Djalović, Ivica; Miladinović, Jegor; Kumar, Rahul; Kumar, Sachin; Kumar, Rajeev

doi:10.3390/ijms23010399

Cited by 8 publications

(5 citation statements)

References 276 publications

(252 reference statements)

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“…From an agricultural standpoint, such effects are particularly evident for cold-adapted crops, such as cool-season grain legumes, namely chickpeas ( Cicer arietinum L.), lentils ( Lens culinaris Medik. ), and fava beans ( Vicia faba L.), with substantial losses in terms of yields and nutrient content (Fahad et al 2017 ; Kumar et al 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Molecular dynamics of seed priming at the crossroads between basic and applied research

Pagano¹,

Macovei²,

Balestrazzi³

2023

Plant Cell Rep

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Key message The potential of seed priming is still not fully exploited. Our limited knowledge of the molecular dynamics of seed pre-germinative metabolism is the main hindrance to more effective new-generation techniques. Abstract Climate change and other recent global crises are disrupting food security. To cope with the current demand for increased food, feed, and biofuel production, while preserving sustainability, continuous technological innovation should be provided to the agri-food sector. Seed priming, a pre-sowing technique used to increase seed vigor, has become a valuable tool due to its potential to enhance germination and stress resilience under changing environments. Successful priming protocols result from the ability to properly act on the seed pre-germinative metabolism and stimulate events that are crucial for seed quality. However, the technique still requires constant optimization, and researchers are committed to addressing some key open questions to overcome such drawbacks. In this review, an update of the current scientific and technical knowledge related to seed priming is provided. The rehydration–dehydration cycle associated with priming treatments can be described in terms of metabolic pathways that are triggered, modulated, or turned off, depending on the seed physiological stage. Understanding the ways seed priming affects, either positively or negatively, such metabolic pathways and impacts gene expression and protein/metabolite accumulation/depletion represents an essential step toward the identification of novel seed quality hallmarks. The need to expand the basic knowledge on the molecular mechanisms ruling the seed response to priming is underlined along with the strong potential of applied research on primed seeds as a source of seed quality hallmarks. This route will hasten the implementation of seed priming techniques needed to support sustainable agriculture systems.

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Section: Introductionmentioning

confidence: 99%

Molecular dynamics of seed priming at the crossroads between basic and applied research

Pagano¹,

Macovei²,

Balestrazzi³

2023

Plant Cell Rep

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“…Being adapted to cooler climate, pea requires mean seasonal temperature of 10-18°C for its optimum growth. In addition, peas have a lower HS tolerance than other winter legumes such as chickpea and lentil ( Lens culinaris L.) ( Kumar et al., 2021 ), and its productivity usually declines when the maximum day temperature during flowering exceeds 25°C ( Guilioni et al., 1997 ; Sadras et al., 2013 ). Moreover, optimum temperature at critical growth stages for pea is key for the realization of higher yield.…”

Section: Introductionmentioning

confidence: 99%

“…Many reviews covering various legumes have highlighted the impact of HS including the strategies to breed HS tolerant genotypes as most relevant approach for adaptation to stress ( Sita et al., 2017 ; Liu et al., 2019 ; Janni et al., 2020 ; Kumar et al., 2020 ; Kumar et al., 2021 ). Although, a few independent studies in pea ( Sadras et al., 2013 ; Jiang et al., 2015 ; Jiang et al., 2017 ; Tafesse, 2018 ; Jiang et al., 2020 ; Mohapatra et al., 2020 ; Tafesse et al., 2020 ; Tafesse et al., 2021 ; Lamichaney et al., 2021 ) have demonstrated the negative effects of increased temperature on yield; but they are not comprehensively summarized.…”

Section: Introductionmentioning

confidence: 99%

Heat stress tolerance in peas (Pisum sativum L.): Current status and way forward

Devi

Sagar²,

Mishra³

et al. 2023

Front. Plant Sci.

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In the era of climate change, the overall productivity of pea (Pisum sativum L.) is being threatened by several abiotic stresses including heat stress (HS). HS causes severe yield losses by adversely affecting several traits in peas. A reduction in pod yield has been reported from 11.1% to 17.5% when mean daily temperature increase from 1.4 to 2.2°C. High-temperature stress (30.5-33°C) especially during reproductive phase is known to drastically reduce both seed yield and germination. HS during germination and early vegetative stage resulted in poor emergence and stunted plant growth along with detrimental effects on physiological functions of the pea plant. To combat HS and continue its life cycle, plants use various defense strategies including heat escape, avoidance or tolerance mechanisms. Ironically, the threshold temperatures for pea plant and its responses are inconsistent and not yet clearly identified. Trait discovery through traditional breeding such as semi leaflessness (afila), upright growing habit, lodging tolerance, lower canopy temperature and small seeded nature has highlighted their utility for greater adaptation under HS in pea. Screening of crop gene pool and landraces for HS tolerance in a targeted environment is a simple approach to identify HS tolerant genotypes. Thus, precise phenotyping using modern phenomics tools could lead to increased breeding efficiency. The NGS (next generation sequencing) data can be associated to find the candidate genes responsible for the HS tolerance in pea. In addition, genomic selection, genome wide association studies (GWAS) and marker assisted selection (MAS) can be used for the development of HS tolerant pea genotypes. Additionally, development of transgenics could be an alternative strategy for the development of HS tolerant pea genotypes. This review comprehensively covers the various aspects of HS tolerance mechanisms in the pea plant, screening protocols, omic advances, and future challenges for the development of HS tolerant genotypes.

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“…This process involves the transportation of precursor molecules and minerals from leaves to seeds to synthesize storage constituents, such as carbohydrates, fats, and proteins ( Barnabás et al., 2008 ; Awasthi et al., 2014 ). Abiotic stresses, such as heat, negatively impact leaf function, flowering, seed development, and seed composition in legumes ( Sarkar et al., 2021 ), causing significant yield losses ( Kumar et al., 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Investigating the influence of elevated temperature on nutritional and yield characteristics of mung bean (Vigna radiata L.) genotypes during seed filling in a controlled environment

Priya,

Bhardwaj,

Jha

et al. 2023

Front. Plant Sci.

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Rising temperatures impact different developmental stages of summer crops like mung bean, particularly during the crucial seed-filling stage. This study focused on two mung bean genotypes, categorized as heat-tolerant [HT] or heat-sensitive [HS]. These genotypes were grown in pots in an outdoor natural environment (average day/night temperature 36°C/24.3°C) until the onset of podding (40 days after sowing) and subsequently relocated to controlled-environment walk-in growth chambers for exposure to heat stress (42°C/30°C) or control conditions (35°C/25°C) until maturity. For all measured attributes, heat stress had a more pronounced effect on the HS genotype than on the HT genotype. Heat-stressed plants exhibited severe leaf damage, including membrane damage, reduced chlorophyll content, diminished chlorophyll fluorescence, and decreased leaf water content. Heat stress impeded the seed-filling rate and duration, decreasing starch, protein, fat, and mineral contents, with a notable decline in storage proteins. Heat stress disrupted the activities of several seed enzymes, inhibiting starch and sucrose accumulation and consequently decreasing individual seed weights and seed weight plant−1. This study revealed that heat stress during seed filling severely impaired mung bean seed yield and nutritional quality due to its impact on various stress-related traits in leaves and enzyme activities in seeds. Moreover, this research identified potential mechanisms related to heat tolerance in genotypes with contrasting heat sensitivity.

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Genomics Associated Interventions for Heat Stress Tolerance in Cool Season Adapted Grain Legumes

Cited by 8 publications

References 276 publications

Molecular dynamics of seed priming at the crossroads between basic and applied research

Molecular dynamics of seed priming at the crossroads between basic and applied research

Heat stress tolerance in peas (Pisum sativum L.): Current status and way forward

Investigating the influence of elevated temperature on nutritional and yield characteristics of mung bean (Vigna radiata L.) genotypes during seed filling in a controlled environment

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