Heat shock transcription factor A1b regulates heat tolerance in wheat and Arabidopsis through <scp>OPR</scp>3 and jasmonate signalling pathway

Tian, Xiaohong; Wang, Fei; Zhao, Yue; Lan, Tianyu; Yu, Kuohai; Zhang, Liyuan; Qin, Zhen; Hu, Zhaorong; Yao, Yingyin; Sun, Qixin; Rossi, Vincenzo; Peng, Huiru; Xin, Mingming

doi:10.1111/pbi.13268

Cited by 50 publications

(29 citation statements)

References 6 publications

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“…Heat stress transcription factors (Hsf) control the majority of transcriptional alterations that occur in heat stressed cells including many heat shock proteins (Hsp) ( Scharf et al, 2012 ). In addition, Hsfs regulate genes coding for proteins with various functions ( Brooks et al, 2014 ; Fragkostefanakis et al, 2016 , 2018 ; Huang et al, 2016 ; Tian et al, 2019 ). Some of the genes required for metabolite production are regulated by Hsfs such as the Hsf1b-controlled galactinol synthase (GolS1) involved in raffinose biosynthesis in Arabidopsis thaliana ( Panikulangara et al, 2004 ).…”

Section: Introductionmentioning

confidence: 99%

Reprogramming of Tomato Leaf Metabolome by the Activity of Heat Stress Transcription Factor HsfB1

Paupière¹,

Tikunov²,

Schleiff

et al. 2020

Front. Plant Sci.

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Plants respond to high temperatures with global changes of the transcriptome, proteome, and metabolome. Heat stress transcription factors (Hsfs) are the core regulators of transcriptome responses as they control the reprogramming of expression of hundreds of genes. The thermotolerance-related function of Hsfs is mainly based on the regulation of many heat shock proteins (HSPs). Instead, the Hsf-dependent reprogramming of metabolic pathways and their contribution to thermotolerance are not well described. In tomato (Solanum lycopersicum), manipulation of HsfB1, either by suppression or overexpression (OE) leads to enhanced thermotolerance and coincides with distinct profile of metabolic routes based on a metabolome profiling of wild-type (WT) and HsfB1 transgenic plants. Leaves of HsfB1 knock-down plants show an accumulation of metabolites with a positive effect on thermotolerance such as the sugars sucrose and glucose and the polyamine putrescine. OE of HsfB1 leads to the accumulation of products of the phenylpropanoid and flavonoid pathways, including several caffeoyl quinic acid isomers. The latter is due to the enhanced transcription of genes coding key enzymes in both pathways, in some cases in both non-stressed and stressed plants. Our results show that beyond the control of the expression of Hsfs and HSPs, HsfB1 has a wider activity range by regulating important metabolic pathways providing an important link between stress response and physiological tomato development.

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Section: Introductionmentioning

confidence: 99%

Reprogramming of Tomato Leaf Metabolome by the Activity of Heat Stress Transcription Factor HsfB1

Paupière¹,

Tikunov²,

Schleiff

et al. 2020

Front. Plant Sci.

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“…In Arabidopsis, HSFA3 directly up-regulates the expression of Hsp18.1-Cl and Hsp26.5-MII , and both HSFA3 mutants and RNAi significantly reduce high temperature resistance (Schramm et al , 2008). The overexpression of HsfA1a increases Hsp18.2 and Hsp70 expression levels, as well as heatshock tolerance (Qian et al , 2014).HSFA1b regulates high-temperature resistance through OPR3 and the jasmonate signalling pathway (Tian et al , 2020).HSFA1d and HSFA1e activate HsfA2 transcription, and a double knockout of HSFA1d and HSFA1e impairs tolerance to heat-shock stress (Nishizawa-Yokoi et al , 2011). In Arabidopsis, HsfA2 acts as a heat-induced transactivator to maintain the expression levels of HSPs and prolong the duration of acquired thermotolerance (Charng et al , 2007).…”

Section: Discussionmentioning

confidence: 99%

“…HSFs specifically identify and bind heat shock elements (HSEs), which contain nGAAnnTTCn or nTTCnnGAAn in the downstream target genes' promoters (Littlefield & Nelson, 1999). Class A members (HSFA1a , HSFA1b ,HSFA1d , HSFA1e , HSFA2 , and HSFA3 ) positively regulate plant heat tolerance (Charng, Liu, Liu, Chi, Wang, Chang & Wang, 2007, Nishizawa-Yokoi, Nosaka, Hayashi, Tainaka, Maruta, Tamoi, Ikeda, Ohme-Takagi, Yoshimura, Yabuta & Shigeoka, 2011, Qian, Chen, Liu, Yang, Li & Zhang, 2014, Schramm, Larkindale, Kiehlmann, Ganguli, Englich, Vierling & Von Koskull-Döring, 2008, Tian, Wang, Zhao, Lan, Yu, Zhang, Qin, Hu, Yao, Ni, Sun, Rossi, Peng & Xin, 2020, while, in contrast, Class B HSFs (HSFB1 and HSFB2b ) negatively regulate heat-induced HSFs and plant heat tolerance (Ikeda, Mitsuda & Ohme-Takagi, 2011). In addition to responding to heat stress, plant HSFs also participate in other stress pathways.…”

Section: Introductionmentioning

confidence: 99%

MdNup62 interactions with MdHSFs involved in flowering and heat-stress tolerance in apple

Zhang

Jia

et al. 2021

Preprint

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Because of global warming, the apple flowering period is occurring significantly earlier, increasing the probability and degree of freezing injury. Moreover, extreme hot weather has also seriously affected the development of apple industry. Nuclear pore complexes (NPCs) are main channels controlling nucleocytoplasmic transport, but their roles in regulating plant development and stress responses are still unknown. Here, we analysed the components of the apple NPC and found that MdNup62 interacts with MdNup54, forming the central NPC channel. MdNup62 was localized to the nuclear pore, and its expression was significantly up-regulated in ‘Nagafu No. 2’ tissue-cultured seedlings subjected to heat treatments. To determine MdNup62’s function, we obtained MdNup62-overexpressed (OE) Arabidopsis and tomato lines that showed significantly reduced high-temperature resistance. Additionally, OE-MdNup62 Arabidopsis lines showed significantly earlier flowering compared with wild-type. Furthermore, we identified 62 putative MdNup62-interacting proteins and confirmed MdNup62 interactions with multiple MdHSFs. The OE-MdHSFA1d and OE-MdHSFA9b Arabidopsis lines also showed significantly earlier flowering phenotypes than wild-type, but had enhanced high-temperature resistance levels. Thus, MdNUP62 interacts with multiple MdHSFs during nucleocytoplasmic transport to regulate flowering and heat resistance in apple. The data provide a new theoretical reference for managing the impact of global warming on the apple industry.

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“…When plants perceive heat stress, activation of AtOPR3 expression leads to increased JA biosynthesis and accumulation. Subsequently, JA-mediated signaling pathway activated a cascade, resulting in the increase of DREB2A expression and enhancing heat tolerance in plants 45 . Normal wound-induced expression of the JA production genes ZmLOX8 and ZmOPR7/8 require LOX10-mediated signaling, whereas normal levels of JA biosynthesis are responses to mechanical damage 46 .…”

Section: Discussionmentioning

confidence: 99%

CmLOX10 positively regulates drought tolerance through jasmonic acid -mediated stomatal closure in oriental melon (Cucumis melo var. makuwa Makino)

Xing

Liao

Cao

et al. 2020

Sci Rep

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Drought stress severely impairs plant growth and production. Lipoxygenase (LOX), a master regulator for lipid peroxidation, is critical for direct or indirect response to abiotic stresses. Here, we found that drought stress induced the transcription of CmLOX10 in leaves of oriental melon seedlings. Reverse genetic approaches and physiological analyses revealed that silencing CmLOX10 increased drought susceptibility and stomatal aperture in oriental melon seedlings, and that ectopic overexpression of CmLOX10 in Arabidopsis enhanced drought tolerance and decreased the stomatal aperture. Moreover, the transcription of jasmonic acid (JA)-related genes and JA accumulation were significantly induced in CmLOX10-overexpressed Arabidopsis, which were reversely suppressed in CmLOX10-silenced seedlings during the stage of drought stress. Foliar application of JA further verified that JA enhanced drought tolerance and induced stomatal closure in leaves of melon seedlings. In addition, the feedback regulation of CmLOX10 was induced by JA signaling, and the expression level of CmMYC2 was increased by JA and drought treatment. Yeast one-hybrid analysis showed that CmMYC2 directly bound to the promoter of CmLOX10. In summary, we identified the important roles of CmLOX10 in the regulation of drought tolerance in oriental melon seedlings through JA- mediated stomatal closure and JA signaling-mediated feedback through CmMYC2.

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Heat shock transcription factor A1b regulates heat tolerance in wheat and Arabidopsis through OPR3 and jasmonate signalling pathway

Cited by 50 publications

References 6 publications

Reprogramming of Tomato Leaf Metabolome by the Activity of Heat Stress Transcription Factor HsfB1

Reprogramming of Tomato Leaf Metabolome by the Activity of Heat Stress Transcription Factor HsfB1

MdNup62 interactions with MdHSFs involved in flowering and heat-stress tolerance in apple

CmLOX10 positively regulates drought tolerance through jasmonic acid -mediated stomatal closure in oriental melon (Cucumis melo var. makuwa Makino)

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