Methyl Jasmonate and Brassinosteroids: Emerging Plant Growth Regulators in Plant Abiotic Stress Tolerance and Environmental Changes

Alhaithloul, Haifa Abdulaziz S.; Soliman, Mona H.

doi:10.1007/978-3-030-61153-8_8

Cited by 7 publications

(3 citation statements)

References 99 publications

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“…When attacked by herbivories, plants can respond in terms of signal transduction via phytohormonal pathways, induce gene expression changes, which may lead to the biosynthesis of secondary metabolites and defense proteins (Erb and Reymond, 2019). Jasmonic acid (JA) has been long recognized as a pivotal mediator that regulates a myriad of plant developmental and biotic stress responses especially against herbivores, and pathogens as well as abiotic stress responses such as wounding and UV damage (Sun et al, 2011;Alhaithloul and Soliman, 2021). Chewing herbivores such as caterpillars and piercingsucking insects such as white flies can significantly induce the jasmonate pathway in Arabidopsis thaliana (Zhang et al, 2013(Zhang et al, , 2020.…”

Section: Discussionmentioning

confidence: 99%

Transcriptomics and Antioxidant Analysis of Two Chinese Chestnut (Castanea mollissima BL.) Varieties Provides New Insights Into the Mechanisms of Resistance to Gall Wasp Dryocosmus kuriphilus Infestation

Zhu

Chen

et al. 2022

Front. Plant Sci.

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Chinese chestnut is a popular fruit tree with a high nutritional value of its nuts, which can suffer from infestation by the chestnut gall wasp Dryocosmus kuriphilus (GWDK) that results in gall formation and resultant loss of production and profitability. The physiological and molecular mechanisms of GWDK resistance found in certain genotypes currently remains elusive. To gain new insights into this phenomenon, a series of RNA-Seq integrated with metabolomic profiling experiments were executed to investigate the chemical and transcriptional differences in response to GWDK infestation in two contrasting chestnut varieties grown in China (the susceptible “HongLi,” HL and the partially resistant “Shuhe_Wuyingli,” SW). Three time points were selected for comparison: The initiation stage (A), growth stage (B), and maturation stage (C). Results showed that concentrations of hydrogen peroxide (H2O2) and the activities of peroxidase (POD) and superoxide dismutase (SOD) enzyme were elevated in the resistant SW leaves compared with those in HL leaves at all three developmental stages, while catalase (CAT) and polyphenol oxidase (PPO) activities were mostly higher in HL leaves. RNA-Seq transcriptomic analyses of HL and SW leaves revealed that various metabolic pathways involved in GWDK stress responses, such as plant hormone signal transduction, MAPK signaling, and the peroxisome pathway, were enriched in the contrasting samples. Moreover, the weighted gene co-expression network analysis (WGCNA) of differentially expressed genes in the POD pathway combined with transcription factors (TFs) indicated that the expression of TF members of bHLH, WRKY, NAC, and MYB family positively correlated with POD pathway gene expression. The TFs CmbHLH130 (EVM0032437), CmWRKY31 (EVM0017000), CmNAC50 (EVM0000033), and CmPHL12 (EVM0007330) were identified as putative TFs that participate in the regulation of insect-induced plant enzyme activities in chestnut, which may contribute to GWDK resistance in SW. Expression levels of 8 random differentially expressed genes (DEGs) were furthermore selected to perform quantitative reverse transcription PCR (qRT-PCR) to validate the accuracy of the RNA-Seq-derived expression patterns. This study guides the functional analyses of further candidate genes and mechanisms important for GWDK resistance in chestnuts in the future as well as can help in identifying the master transcriptional regulators and important enzyme steps that support major insect defense pathways in chestnut.

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Section: Discussionmentioning

confidence: 99%

Transcriptomics and Antioxidant Analysis of Two Chinese Chestnut (Castanea mollissima BL.) Varieties Provides New Insights Into the Mechanisms of Resistance to Gall Wasp Dryocosmus kuriphilus Infestation

Zhu

Chen

et al. 2022

Front. Plant Sci.

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“…Only a few studies have suggested that BRs are emerging growth regulators that can be used in sustainable agricultural practices. However, although they exhibit a promising effect on plant growth, the role of BRs in stress tolerance remains debatable (Nolan et al, 2017;Alhaithloul and Soliman, 2021).…”

Section: Brassinosteroidsmentioning

confidence: 99%

Phytohormonal modulation of the drought stress in soybean: outlook, research progress, and cross-talk

Shaffique,

Hussain,

Kang

et al. 2023

Front. Plant Sci.

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Phytohormones play vital roles in stress modulation and enhancing the growth of plants. They interact with one another to produce programmed signaling responses by regulating gene expression. Environmental stress, including drought stress, hampers food and energy security. Drought is abiotic stress that negatively affects the productivity of the crops. Abscisic acid (ABA) acts as a prime controller during an acute transient response that leads to stomatal closure. Under long-term stress conditions, ABA interacts with other hormones, such as jasmonic acid (JA), gibberellins (GAs), salicylic acid (SA), and brassinosteroids (BRs), to promote stomatal closure by regulating genetic expression. Regarding antagonistic approaches, cytokinins (CK) and auxins (IAA) regulate stomatal opening. Exogenous application of phytohormone enhances drought stress tolerance in soybean. Thus, phytohormone-producing microbes have received considerable attention from researchers owing to their ability to enhance drought-stress tolerance and regulate biological processes in plants. The present study was conducted to summarize the role of phytohormones (exogenous and endogenous) and their corresponding microbes in drought stress tolerance in model plant soybean. A total of n=137 relevant studies were collected and reviewed using different research databases.

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“…The most common abiotic stresses include salinity, drought, flooding, and heat stress, whereas bacteria, viruses, and fungi are the key biotic stresses. These stresses can be mitigated in cultivated plants through the application of a variety of antistressors, such as nitric oxide [5]; pyraclostrobin [6]; rhizobia, or plant-growth-promoting rhizobacteria (PGPR) [7,8]; melatonin [4]; strigolactones [9]; phytohormones [10]; and nutrients such as silicon [11,12] and selenium [13], as well as their nanoforms [9,14]. Several studies have already been published on the individual stresses [6,9,15], but there are only a few publications on combined stress (e.g., [1,14,[16][17][18]), and very few articles on multiple stresses [19].…”

Section: Introductionmentioning

confidence: 99%

Can Nanofertilizers Mitigate Multiple Environmental Stresses for Higher Crop Productivity?

et al. 2022

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The global food production for the worldwide population mainly depends on the huge contributions of the agricultural sector. The cultivated crops of foods need various elements or nutrients to complete their growth, and these are indirectly consumed by humans. During this production, several environmental constraints or stresses may cause losses in the global agricultural production. These obstacles may include abiotic and biotic stresses, which have already been studied in both individual and combined cases. However, there are very few studies on multiple stresses. On the basis of the myriad benefits of nanotechnology in agriculture, nanofertilizers (or nanonutrients) have become promising tools for agricultural sustainability. Nanofertilizers are also the proper solution to overcoming the environmental and health problems that can result from conventional fertilizers. The role of nanofertilizers has increased, especially under different environmental stresses, which can include individual, combined, and multiple stresses. The stresses are most commonly the result of nature; however, studies are still needed on the different stress levels. Nanofertilizers can play a crucial role in supporting cultivated plants under stress and in improving the plant yield, both quantitatively and qualitatively. Similar to other biological issues, many open-ended questions still require further investigation: Is the right time and era for nanofertilizers in agriculture? Will the nanofertilizers be the dominant source of nutrients in modern agriculture? Are nanofertilizers, and particularly biological synthesized ones, the magic solution for sustainable agriculture? What are the expected damages of multiple stresses on plants?

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Methyl Jasmonate and Brassinosteroids: Emerging Plant Growth Regulators in Plant Abiotic Stress Tolerance and Environmental Changes

Cited by 7 publications

References 99 publications

Transcriptomics and Antioxidant Analysis of Two Chinese Chestnut (Castanea mollissima BL.) Varieties Provides New Insights Into the Mechanisms of Resistance to Gall Wasp Dryocosmus kuriphilus Infestation

Transcriptomics and Antioxidant Analysis of Two Chinese Chestnut (Castanea mollissima BL.) Varieties Provides New Insights Into the Mechanisms of Resistance to Gall Wasp Dryocosmus kuriphilus Infestation

Phytohormonal modulation of the drought stress in soybean: outlook, research progress, and cross-talk

Can Nanofertilizers Mitigate Multiple Environmental Stresses for Higher Crop Productivity?

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