Cell membrane stability: Combining ability and gene effects under heat stress conditions

Dhanda, S. S.; Munjal, Renu

doi:10.1556/crc.37.2009.3.10

Cited by 13 publications

(11 citation statements)

References 14 publications

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“…Dias and others (2010), who also studied CMS in wheat genotypes under HS during grain-filling, observed genotypic differences in decrease in the CMS under HS. Our findings are in conformity with the observation of Dhanda and Munjal (2009) also.…”

Section: Alteration In Cell Membrane Stability (Cms) At Different Stasupporting

confidence: 94%

“…Fig. 9 Scatter-plot analysis for deducing the correlation between the expression of HSP70 and stress-associated biochemical parameters in thermotolerant (C306) and thermosusceptible (HD2329) cultivars of wheat at different stages of growth, a correlation between fold expression of HSP70 and cell membrane stability (CMS), and b correlation between fold expression of HSP70 and total antioxidant capacity (TAC); the chart tool available online was used for the cluster plotting (www.onlinecharttool.com) Increased expression of HSP70 and concomitant decreased CMS observed by us was in conformity with the findings of Dhanda and Munjal (2009) and Dias and others (2010). Negative correlations were more pronounced in the thermosensitive cultivar.…”

Section: Hsp70 Expression and Thermotolerance-associated Biochemical supporting

confidence: 85%

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The Stress of Suicide: Temporal and Spatial Expression of Putative Heat Shock Protein 70 Protect the Cells from Heat Injury in Wheat (Triticum aestivum)

Kumar

Goswami

Gupta

et al. 2015

J Plant Growth Regul

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Heat stress adversely affects growth, development, and yield of winter wheat (Triticum aestivum). Plants have, however, evolved mechanisms to adapt to such conditions mainly by the expression of stress-associated chaperones, the heat shock proteins (HSPs), for modulating the tolerance level. Here, we report cloning of cytosolic putative HSP70 of 1678 bp from a thermotolerant cultivar (C306) of wheat (T. aestivum). A BLASTn search showed maximum homology with the predicted HSP70 protein reported from Hordeum vulgare (accession no AK354795.1). In silico characterization showed the presence of a nucleotide-binding domain of the sugar kinase/HSP70/ actin superfamily in the sequence. Putative HSP70 showed temporal and spatial variations in the expression under heat stress (HS). We observed the abundance of HSP70 protein, H 2 O 2 , proline, and guaiacol peroxidase activity during the seed-hardening stage under HS; accumulation was, however, higher in the thermotolerant C306 than in thermosusceptible HD2329 cultivar. A gradual decrease in cell membrane stability (CMS) and an increase in total antioxidant capacity (TAC) were observed in both the cultivars at the different stages of growth. The expression of HSP70 showed a negative correlation with CMS and a positive correlation with TAC under HS; changes were less pronounced in C306 than in HD2329 at all the stages of growth studied. HSP70 seems to play diverse roles associated with thermotolerance, and partially protect wheat from terminal HS. Being the important member of family of the HSPs, HSP70 needs to be studied in detail, to be used for developing climate-smart wheat crops, through genetic engineering/breeding approaches.

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Section: Alteration In Cell Membrane Stability (Cms) At Different Stasupporting

confidence: 94%

Section: Hsp70 Expression and Thermotolerance-associated Biochemical supporting

confidence: 85%

The Stress of Suicide: Temporal and Spatial Expression of Putative Heat Shock Protein 70 Protect the Cells from Heat Injury in Wheat (Triticum aestivum)

Kumar

Goswami

Gupta

et al. 2015

J Plant Growth Regul

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“…Similarly, if heat stress co‐occurs with the later stages of anther development in tomato, starch accumulation is limited just prior to anthesis, which substantially decreases sugar concentrations within the mature pollen grains leading to reduced germination ability and decreased yields (Pressman, Peet, & Pharr, 2002). Comparable observations have been made in chickpea (Kaushal et al, 2013) and wheat (Dhanda & Munjal, 2009), where heat stress has been observed to reduce sucrose availability for anthers and pollen. With respect to later stages of development, the study of Bahuguna, Solis, Shi, and Jagadish (2017) tested the impact of high night‐time temperature post‐anthesis in rice and observed that elevated rates of respiration in heat susceptible varieties coincided with reduced panicle starch, which concurrently reduced grain weight and quality.…”

Section: Net Carbon Gain As a Limiting Factor For Reproductive Development And Output During Heat Stressmentioning

confidence: 84%

“…Comparable observations have been made in chickpea (Kaushal et al, 2013) and wheat (Dhanda & Munjal, 2009), where heat stress has been observed to reduce sucrose availability for anthers and pollen. With respect to later stages of development, the study of Bahuguna, Solis, Shi, and Jagadish (2017) tested the impact of high night-time temperature post-anthesis in rice and observed that elevated rates of respiration in heat susceptible varieties coincided with reduced panicle starch, which concurrently reduced grain weight and quality.…”

Section: The Impact Of Enhanced Respiration On Reproductive Developmentmentioning

confidence: 86%

The potential of resilient carbon dynamics for stabilizing crop reproductive development and productivity during heat stress

Ferguson

Tidy

Murchie

et al. 2021

Plant Cell & Environment

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Impaired carbon metabolism and reproductive development constrain crop productivity during heat stress. Reproductive development is energy intensive, and its requirement for respiratory substrates rises as associated metabolism increases with temperature. Understanding how these processes are integrated and the extent to which they contribute to the maintenance of yield during and following periods of elevated temperatures is important for developing climate‐resilient crops. Recent studies are beginning to demonstrate links between processes underlying carbon dynamics and reproduction during heat stress, consequently a summation of research that has been reported thus far and an evaluation of purported associations are needed to guide and stimulate future research. To this end, we review recent studies relating to source–sink dynamics, non‐foliar photosynthesis and net carbon gain as pivotal in understanding how to improve reproductive development and crop productivity during heat stress. Rapid and precise phenotyping during narrow phenological windows will be important for understanding mechanisms underlying these processes, thus we discuss the development of relevant high‐throughput phenotyping approaches that will allow for more informed decision‐making regarding future crop improvement.

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“…Heat stress is an important production constraint of wheat during grain-filling period in India and in other parts of the world where the temperature becomes high during anthesis to maturity (grain-filling) stage of plant growth (Dhanda and Munjal, 2009). Extremely high temperatures are the factors causing the greatest problems for agriculture and crop production (Balla et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Assessment of genetic variability, heritability and genetics advance in wheat (Triticum aestivum L.) genotypes under normal and heat stress condition

Thapa

Sharma

Kumar

et al. 2019

IJARe

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One ninety diverse wheat genotypes were evaluated for genetic varaibilty, heritability and genetic advance under norrmal and heat stress environment at the Research Farm of Department of Genetics and Plant Breeding, Chaudhary Charan Singh University, Meerut U. P. (India). The genotypes were grown in simple augmented block design and data were collected on fifteen morpho-agronomic characters. Analysis of observed data showed that the mean squares due to treatments for all the traits in both the environment were highly significant. GCV and PCV were highest for canopy temperature depression, grain weight/spike, biological yield/plant, grain yield/plant, tiller number./plant and lowest for days to anthesis. Heritability (bs) estimates were high for canopy temperature depression (CTD), followed by biological yield/plant, grain weight/ spike, grain number. /spike, 1000- grain weight, grain yield/plant, tiller number./plant and lowest for days to heading and days to anthesis in case of both environments. The estimates of genetic advance (GA) were highest for canopy temperature depression followed by grain weight/spike, biological yield/plant, grain yield/spike, tiller number./plant, grain number./spike and lowest for days to heading and days to anthesis under both ( numberrmal and heat stress) environment. This study suggests that the presence of adequate genetic variability, heritability and genetic advance for these traits under norrmal and heat stress environment is suitable for breeding programs and crop improvement.

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Cell membrane stability: Combining ability and gene effects under heat stress conditions

Cited by 13 publications

References 14 publications

The Stress of Suicide: Temporal and Spatial Expression of Putative Heat Shock Protein 70 Protect the Cells from Heat Injury in Wheat (Triticum aestivum)

The Stress of Suicide: Temporal and Spatial Expression of Putative Heat Shock Protein 70 Protect the Cells from Heat Injury in Wheat (Triticum aestivum)

The potential of resilient carbon dynamics for stabilizing crop reproductive development and productivity during heat stress

Assessment of genetic variability, heritability and genetics advance in wheat (Triticum aestivum L.) genotypes under normal and heat stress condition

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