Too hot to defend: a tale of salicylic acid

Suraj, H.M.; SharathKumar, M.; Kan, Jan A.L. van

doi:10.1016/j.tplants.2022.10.001

Cited by 7 publications

(2 citation statements)

References 11 publications

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Section: Resultsmentioning

confidence: 99%

“…SA had a demonstrated response in H and all combinatorial stress treatments. The importance of SA accumulation to combinatorial stress resilience has been demonstrated in maize; however, direct links to metabolic phenotypes have yet to be fully elucidated (Suraj et al, 2022;Yang et al, 2022). Khan et al (2013) found evidence in wheat that the adverse effects of heat stress on photosynthesis can be alleviated by induced proline accumulation and its interaction with ethylene, as demonstrated by the application of SA.…”

Section: Ubiquitous Indicators Of Stressmentioning

confidence: 99%

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Multi‐omics atlas of combinatorial abiotic stress responses in wheat

Da Ros,

Bollina,

Soolanayakanahally

et al. 2023

The Plant Journal

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SUMMARYField‐grown crops rarely experience growth conditions in which yield can be maximized. Environmental stresses occur in combination, with advancements in crop tolerance further complicated by its polygenic nature. Strategic targeting of causal genes is required to meet future crop production needs. Here, we employed a systems biology approach in wheat (Triticum aestivum L.) to investigate physio‐metabolic adjustments and transcriptome reprogramming involved in acclimations to heat, drought, salinity and all combinations therein. A significant shift in magnitude and complexity of plant response was evident across stress scenarios based on the agronomic losses, increased proline concentrations and 8.7‐fold increase in unique differentially expressed transcripts (DETs) observed under the triple stress condition. Transcriptome data from all stress treatments were assembled into an online, open access eFP browser for visualizing gene expression during abiotic stress. Weighted gene co‐expression network analysis revealed 152 hub genes of which 32% contained the ethylene‐responsive element binding factor‐associated amphiphilic repression (EAR) transcriptional repression motif. Cross‐referencing against the 31 DETs common to all stress treatments isolated TaWRKY33 as a leading candidate for greater plant tolerance to combinatorial stresses. Integration of our findings with available literature on gene functional characterization allowed us to further suggest flexible gene combinations for future adaptive gene stacking in wheat. Our approach demonstrates the strength of robust multi‐omics‐based data resources for gene discovery in complex environmental conditions. Accessibility of such datasets will promote cross‐validation of candidate genes across studies and aid in accelerating causal gene validation for crop resiliency.

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Section: Resultsmentioning

confidence: 99%

Section: Ubiquitous Indicators Of Stressmentioning

confidence: 99%

Multi‐omics atlas of combinatorial abiotic stress responses in wheat

Da Ros,

Bollina,

Soolanayakanahally

et al. 2023

The Plant Journal

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Molecular regulation of the salicylic acid hormone pathway in plants under changing environmental conditions

Rossi

Marchetta

Kim

et al. 2023

Trends in Biochemical Sciences

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Heat shock factor ZmHsf17 positively regulates phosphatidic acid phosphohydrolase ZmPAH1 and enhances maize thermotolerance

Zhang,

Meng,

Liu

et al. 2024

Journal of Experimental Botany

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Heat stress (HS) adversely impacts plant growth, development and grain yield. Heat shock factors (Hsf), especially HsfA2 subclass, play a pivotal role in the transcriptional regulation of genes in response to HS. In this study, the coding sequence of maize ZmHsf17 was cloned. ZmHsf17 contains conserved domains: DNA binding, oligomerization and transcriptional activation. The protein was nuclear localized and had transcription activation activity. Yeast two hybrid and split luciferase complementary assays confirmed the interaction of ZmHsf17 with members of the maize HsfA2 subclass. Overexpression of ZmHsf17 in maize significantly increased chlorophyll content and net photosynthesis rate of maize leaves, and enhanced the stability of cellular membranes. Through integrative analysis of ChIP-seq and RNA-seq datasets, ZmPAH1, encoding phosphatidic acid phosphohydrolase of lipid metabolic pathways, was identified as a target gene of ZmHsf17. The promoter fragment of ZmPAH1 was bound by ZmHsf17 in protein-DNA interaction experiments in vivo and in vitro. Lipidomic data also indicates that the overexpression of ZmHsf17 increased levels of some critical membrane lipid components of maize leaves under HS. This research provides new insights into the role of the ZmHsf17-ZmPAH1 module in regulating thermotolerance in maize.

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Too hot to defend: a tale of salicylic acid

Cited by 7 publications

References 11 publications

Multi‐omics atlas of combinatorial abiotic stress responses in wheat

Multi‐omics atlas of combinatorial abiotic stress responses in wheat

Molecular regulation of the salicylic acid hormone pathway in plants under changing environmental conditions

Heat shock factor ZmHsf17 positively regulates phosphatidic acid phosphohydrolase ZmPAH1 and enhances maize thermotolerance

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