WRKY Transcription Factor Response to High-Temperature Stress

Abstract

Plant growth and development are closely related to the environment, and high-temperature stress is an important environmental factor that affects these processes. WRKY transcription factors (TFs) play important roles in plant responses to high-temperature stress. WRKY TFs can bind to the W-box cis-acting elements of target gene promoters, thereby regulating the expression of multiple types of target genes and participating in multiple signaling pathways in plants. A number of studies have shown the important biological functions and working mechanisms of WRKY TFs in plant responses to high temperature. However, there are few reviews that summarize the research progress on this topic. To fully understand the role of WRKY TFs in the response to high temperature, this paper reviews the structure and regulatory mechanism of WRKY TFs, as well as the related signaling pathways that regulate plant growth under high-temperature stress, which have been described in recent years, and this paper provides references for the further exploration of the molecular mechanisms underlying plant tolerance to high temperature.

Diethyl ether anesthesia induces transient cytosolic [Ca2+] increase, heat shock proteins, and heat stress tolerance of photosystem II in Arabidopsis

“…This omics-based study demonstrates that exposure of plants to GVA diethyl ether strongly reprogrammed gene expression in A. thaliana . Among the most obvious upregulated genes/proteins were HSPs ( Figure 4 ), but also other heat responsive genes (e.g., WRKY transcription factors, Cheng et al, 2021 ). Studies on animals also found that GVA profoundly changed gene expression pattern ( Sergeev et al, 2004 ) and increased expression of HSPs (HSP-10, HSP-27, and HSP70-1; Sergeev et al, 2004 ; Coghlan et al, 2018 ; Upton et al, 2020 ).…”

Transcriptome-wide identification of WRKY transcription factors and their expression profiles in response to methyl jasmonate in Platycodon grandiflorus

“…For example, the AaWRKY1 gene in Artemisia annua has been shown to regulate of artemisinin biosynthesis, 37 and overexpression of the PqWRKY1 gene activates the triterpene biosynthetic pathway in Panax quinquefolius . 34 WRKY are also indispensable to abiotic and biotic stresses, which enhance the resistance of Arabidopsis to pathogens 38 , 39 and increase the tolerance of plants to drought, 40 , 41 high temperatures, 42 , 43 low temperatures, 44 , 45 and other stresses.…”

Water wisteria genome reveals environmental adaptation and heterophylly regulation in amphibious plants

“…2f). Among those, NAC and WRKY families play important roles in plant responses to the environmental stress, such as drought (Mao et al, 2015), heat (Cheng et al, 2021b), and oxidative stress (Yuan et al, 2019), which may devote to the acclimation of H. difformis in the amphibious surroundings. B-type RESPONSE REGULATOR (ARR-B) TFs were reported to be related to the response to CK (Sakai et al, 2001), while the B3 family and GRAS family are known in the response to the auxin (Swaminathan et al, 2008) and GA (Cenci and Rouard, 2017).…”