Response and tolerance mechanism of food crops under high temperature stress: a review

• Published in: Brazilian journal of biology Vol. 82; pp. e253898 - 15
• Main Authors: Han, S, Jiang, S, Xiong, R, Shafique, K, Zahid, K R, Wang, Y
• Format: Journal Article
• Language: English; Portuguese
• Published: Brazil Instituto Internacional de Ecologia 2022
• Subjects: Agricultural production; Agriculture; BIOLOGY; chromatin remodeling; Climate change; Corn; Crop yield; Crops; Crops, Agricultural - genetics; Drought; Epigenesis, Genetic; epigenetic; Epigenetics; Flowers & plants; Food security; Genes; Genetic transformation; Germplasm; Heat; Heat resistance; Heat stress; Heat tolerance; High temperature; High temperature effects; high temperature stress; Hot Temperature; Infertility; Plant reproduction; pollen infertility; Pollination; Pollinators; Population; Productivity; Rice; Temperature; Temperature tolerance; Wheat; World population; Bangladesh; Pakistan; Asia; India; South Asia; remodelação da cromatina; epigenética; epigenetic; food security; high temperature stress; chromatin remodeling; comida segura; infertilidade de pólen; pollen infertility; estresse de alta temperatura
• ISSN: 1519-6984; 1678-4375; 1678-4375
• DOI: 10.1590/1519-6984.253898

High temperature stress events are critical factors inhibiting crop yield. Meanwhile, world population is growing very rapidly and will be reached up to 9 billion by 2050. To feed increasing world population, it is challenging task to increase about 70% global food productions. Food crops have significant contribution toward global food demand and food security. However, consequences from increasing heat stress events are demolishing their abilities to survive and sustain yield when subjected to extreme high temperature stress. Therefore, there is dire need to better understand response and tolerance mechanism of food crops following exposure to heat stress. Here, we aimed to provide recent update on impact of high temperature stress on crop yield of food crops, pollination, pollinators, and novel strategies for improving tolerance of food crop under high temperature stress. Importantly, development of heat-resistant transgenic food crops can grant food security through transformation of superior genes into current germplasm, which are associated with various signaling pathways as well as epigenetic regulation in response to extreme high temperature stress.