Heat Shock Proteins: Dynamic Biomolecules to Counter Plant Biotic and Abiotic Stresses

Haq, Saeed Ul; Khan, Abid; Ali, Muhammad; Khattak, Abdul Mateen; Gai, Wen-Xian; Zhang, Huai-Xia; Wei, Aimin; Gong, Zhen-Hui

doi:10.3390/ijms20215321

Cited by 267 publications

(108 citation statements)

References 256 publications

(297 reference statements)

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“…Assuming that the ‘Barnea’ cultivar is more tolerant to heat stress compared to the ‘Souri’ cultivar in regard to fruit development and oil accumulation [ 36 ], suggests that induction of heat-shock proteins may contribute to the olive plant’s tolerance to heat stress. This assumption is in agreement with other studies which found that heat-shock proteins are involved in heat tolerance [ 26 , 47 , 48 ]. Analysis of OeHSP70 expression also showed the same pattern, in which the differences between the expression levels in the HT and the MT environments were much higher in the ‘Barnea’ cultivar than in the ‘Souri’.…”

Section: Discussionsupporting

confidence: 93%

“…Heat-shock proteins positively regulate antioxidant enzymes which detoxify reactive oxygen species. They also enhance plant immunity by the accumulation and stability of pathogenesis-related proteins produced under biotic stresses [ 26 ]. During the onset of stress, plants reduce normal protein production, and transcribe and translate heat-shock proteins.…”

Section: Introductionmentioning

confidence: 99%

“…During the onset of stress, plants reduce normal protein production, and transcribe and translate heat-shock proteins. Heat-shock proteins have been reported in a wide range of organisms and are highly conserved [ 26 ]. Based on molecular weight, HSPs are generally classified into the following sub-families: HSP100, HSP90, HSP70, HSP60, and small HSPs.…”

Section: Introductionmentioning

confidence: 99%

“…Based on molecular weight, HSPs are generally classified into the following sub-families: HSP100, HSP90, HSP70, HSP60, and small HSPs. Several studies have indicated that many high molecular weight HSPs exhibited a response to high-temperature stress [ 26 ]. Among the many heat-shock proteins, HSP70s and HSP60s whose response to heat stress has been most intensively studied, have been shown to maintain proper folding under conditions of heat stress with the aid of ATPs [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have indicated that many high molecular weight HSPs exhibited a response to high-temperature stress [ 26 ]. Among the many heat-shock proteins, HSP70s and HSP60s whose response to heat stress has been most intensively studied, have been shown to maintain proper folding under conditions of heat stress with the aid of ATPs [ 26 ]. Hsp70s are a class of highly conserved proteins which act as molecular chaperones and play a crucial role in protecting the plant cells from the harmful effects of heat stress.…”

Section: Introductionmentioning

confidence: 99%

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A High Temperature Environment Regulates the Olive Oil Biosynthesis Network

Nissim

Shlosberg

Biton

et al. 2020

Plants

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Climate change has been shown to have a substantial impact on agriculture and high temperatures and heat stress are known to have many negative effects on the vegetative and reproductive phases of plants. In a previous study, we addressed the effects of high temperature environments on olive oil yield and quality, by comparing the fruit development and oil accumulation and quality of five olive cultivars placed in high temperature and moderate temperature environments. The aim of the current study was to explore the molecular mechanism resulting in the negative effect of a high temperature environment on oil quantity and quality. We analyzed the transcriptome of two extreme cultivars, ‘Barnea’, which is tolerant to high temperatures in regard to quantity of oil production, but sensitive regarding its quality, and ‘Souri’, which is heat sensitive regarding quantity of oil produced, but relatively tolerant regarding its quality. Transcriptome analyses have been carried out at three different time points during fruit development, focusing on the genes involved in the oil biosynthesis pathway. We found that heat-shock protein expression was induced by the high temperature environment, but the degree of induction was cultivar dependent. The ‘Barnea’ cultivar, whose oil production showed greater tolerance to high temperatures, exhibited a larger degree of induction than the heat sensitive ‘Souri’. On the other hand, many genes involved in olive oil biosynthesis were found to be repressed as a response to high temperatures. OePDCT as well as OeFAD2 genes showed cultivar dependent expression patterns according to their heat tolerance characteristics. The transcription factors OeDof4.3, OeWRI1.1, OeDof4.4 and OeWRI1.2 were identified as key factors in regulating the oil biosynthesis pathway in response to heat stress, based on their co-expression characteristics with other genes involved in this pathway. Our results may contribute to identifying or developing a more heat tolerant cultivar, which will be able to produce high yield and quality oil in a future characterized by global warming.

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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A High Temperature Environment Regulates the Olive Oil Biosynthesis Network

Nissim

Shlosberg

Biton

et al. 2020

Plants

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Role of Ascorbate Peroxidase in Ascorbate‐glutathione Pathway for Stress Tolerance

Pandey,

Gupta,

Gupta

et al. 2024

Annual Plant Reviews Online

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Under both normal and stressful circumstances, plants produce reactive oxygen species (ROS). However, when environmental conditions are too unfavourable, excessive ROS is produced and the antioxidative defence mechanisms cannot handle the high amounts of ROS, which results in plant damage. The antioxidant defence system's enzymatic and non‐enzymatic components detoxify and scavenge ROS to lessen their harmful effects. The ascorbate‐glutathione (AsA‐GSH) route, also referred to as the Asada‐Halliwell pathway, entails four enzymes that are essential for the detoxification of ROS: AsA peroxidase (APX), dehydroascorbate reductase (DHAR), monodehydroascorbate reductase (MDHAR), and GSH reductase (GR). These enzymes work in conjunction with other plant defence mechanisms in addition to detoxifying ROS to shield plants from different abiotic stress‐related harms. Numerous studies on plants have shown that the up‐regulation or overexpression of these antioxidant enzyme genes enhances the AsA and GSH levels in response to abiotic stresses and helps plants to lower ROS levels. This article outlines the role of APX as a crucial enzyme in the AsA‐GSH pathway and the capacity of plants to withstand abiotic stress.

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The isothiocyanate sulforaphane induces respiratory burst oxidase homologue D‐dependent reactive oxygen species production and regulates expression of stress response genes

et al. 2022

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Sulforaphane (SFN) is an isothiocyanate-type phytomolecule present in crucifers, which is mainly synthesized in response to biotic stress. In animals, SFN incorporated in the diet has anticancer properties among others. The mechanism of action and signaling are well described in animals; however, little is known in plants. The goal in the present study is to elucidate components of the SFN signaling pathway, particularly the production of reactive oxygen species (ROS), and its effect on the transcriptome. Our results showed that in Arabidopsis, SFN causes ROS production exclusively through the action of the NADPH oxidase RBOH isoform D that requires calcium as a signaling component for the ROS production. To add to this, we also analyzed the effect of SFN on the transcriptome by RNAseq. We observed the highest expression increase for heat shock proteins (HSP) genes and also for genes associated with the response to oxidative stress. The upregulation of several genes linked to the biotic stress response confirms the interplay between SFN and this stress. In addition, SFN increases the levels of transcripts related to the response to abiotic stress, as well as phytohormones. Taken together, these results indicate that SFN induces an oxidative burst leading to signaling events. This oxidative burst may cause the increase of the expression of genes such as heat shock proteins to restore cellular homeostasis and genes that codify possible components of the signaling pathway and putative effectors.

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Heat Shock Proteins: Dynamic Biomolecules to Counter Plant Biotic and Abiotic Stresses

Cited by 267 publications

References 256 publications

A High Temperature Environment Regulates the Olive Oil Biosynthesis Network

A High Temperature Environment Regulates the Olive Oil Biosynthesis Network

Role of Ascorbate Peroxidase in Ascorbate‐glutathione Pathway for Stress Tolerance

The isothiocyanate sulforaphane induces respiratory burst oxidase homologue D‐dependent reactive oxygen species production and regulates expression of stress response genes

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