Food crops face rising temperatures: An overview of responses, adaptive mechanisms, and approaches to improve heat tolerance
TLDR
The rising temperatures are resulting in heat stress for various agricultural crops to limit their growth, metabolism, and leading to significant loss of yield potential worldwide as mentioned in this paper, and heat stress adversely affects normal plant growth and development depending on the sensitivity of each crop species.Abstract:
The rising temperatures are resulting in heat stress for various agricultural crops to limit their growth, metabolism, and leading to significant loss of yield potential worldwide. Heat stress adversely affects normal plant growth and development depending on the sensitivity of each crop species. Each crop species has its own range of temperature maxima and minima at different developmental stages beyond which all these processes get inhibited. The reproductive stage is on the whole more sensitive to heat stress, resulting in impaired fertilization to cause abortion of flowers. During seed filling, heat stress retards seed growth by affecting all the biochemical events to reduce seed size. Unfavorable temperature may significantly affect photosynthesis, respiration, water balance, and membrane stability of leaves. To combat heat stress, plants acquire various defense mechanisms for their survival such as maintaining membrane stability, and scavenging reactive oxygen species by generating antioxida...read more
Citations
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Journal ArticleDOI
Drought or/and heat-stress effects on seed filling in food crops: Impacts on functional biochemistry, seed yields, and nutritional quality
Akanksha Sehgal,Kumari Sita,Kadambot H. M. Siddique,Rakesh Kumar,Sailaja Bhogireddy,Rajeev K. Varshney,Bindumadhava HanumanthaRao,Ramakrishnan M. Nair,P. V. Vara Prasad,Harsh Nayyar +9 more
TL;DR: Findings in various food crops are highlighted, showing how their seed composition is drastically impacted at various cellular levels due to drought and heat stresses, applied separately, or in combination.
Journal ArticleDOI
Heat stress effects and management in wheat. A review
TL;DR: A detailed overview of morpho-physiological responses of wheat to heat stress may help formulating appropriate strategies for heat-stressed wheat yield improvement, as well as searching for possible management strategies to increase productivity and sustainability of growing wheat.
Journal ArticleDOI
Field crops and the fear of heat stress—Opportunities, challenges and future directions
TL;DR: Information on mechanisms leading to heat stress induced sterility is biased towards rice, wheat and sorghum, while the same across other field crops is limited, so increasing research efforts in this direction is critical and timely.
Journal ArticleDOI
Molecular and genetic bases of heat stress responses in crop plants and breeding for increased resilience and productivity
Michela Janni,Mariolina Gullì,Elena Maestri,Marta Marmiroli,Babu Valliyodan,Babu Valliyodan,Henry T. Nguyen,Nelson Marmiroli +7 more
TL;DR: This review provides a wide-ranging assessment of approaches to reduce the impact of heat stress on food crops.
Journal ArticleDOI
Food Legumes and Rising Temperatures: Effects, Adaptive Functional Mechanisms Specific to Reproductive Growth Stage and Strategies to Improve Heat Tolerance
Kumari Sita,Akanksha Sehgal,Bindumadhava HanumanthaRao,Ramakrishnan M. Nair,P. V. Vara Prasad,Shiv Kumar,Pooran M. Gaur,Muhammad Farooq,Kadambot H. M. Siddique,Rajeev K. Varshney,Rajeev K. Varshney,Harsh Nayyar +11 more
TL;DR: Through various breeding techniques, heat tolerance in major legumes can be enhanced to improve performance in the field and unravel different mechanisms underlying thermotolerance, which is imperative to understand the processes of molecular responses toward high-temperature stress.
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