Putrescine metabolism modulates the biphasic effects of brassinosteroids on canola and <scp><i>Arabidopsis</i></scp> salt tolerance

Liu, Jinlong; Yang, Rongchen; Jian, Ni; 龙伟,; Ye, Liaoliao; Wang, Ruihua; Gao, Huiling; Zheng, Qi

doi:10.1111/pce.13757

Cited by 25 publications

(10 citation statements)

References 65 publications

(84 reference statements)

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“…The leucine-rich repeat receptor-like protein kinase BAK1 at the plasma membrane is known to associate with brassinosteroid-insensitive 1 (BRI1), a brassinosteroid (BR) receptor [ 287 ]. Proper expression of both BAK1 and BRI1 , presumably providing adequate BR signaling, is beneficial for Arabidopsis resistance to salt stress [ 288 ]. BAK1 also has a crucial role in pathogen-associated molecular pattern (PAMP) immunity because it interacts with Flagellin Sensing 2, the receptor of bacterial flagellin, a PAMP signal [ 289 ].…”

Section: Protein S -Glutathionylation: Roles Of Glutathione In the Protection And Regulation Of Protein Functions Undementioning

confidence: 99%

Glutathione Metabolism in Plants under Stress: Beyond Reactive Oxygen Species Detoxification

2021

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Glutathione is an essential metabolite for plant life best known for its role in the control of reactive oxygen species (ROS). Glutathione is also involved in the detoxification of methylglyoxal (MG) which, much like ROS, is produced at low levels by aerobic metabolism under normal conditions. While several physiological processes depend on ROS and MG, a variety of stresses can dramatically increase their concentration leading to potentially deleterious effects. In this review, we examine the structure and the stress regulation of the pathways involved in glutathione synthesis and degradation. We provide a synthesis of the current knowledge on the glutathione-dependent glyoxalase pathway responsible for MG detoxification. We present recent developments on the organization of the glyoxalase pathway in which alternative splicing generate a number of isoforms targeted to various subcellular compartments. Stress regulation of enzymes involved in MG detoxification occurs at multiple levels. A growing number of studies show that oxidative stress promotes the covalent modification of proteins by glutathione. This post-translational modification is called S-glutathionylation. It affects the function of several target proteins and is relevant to stress adaptation. We address this regulatory function in an analysis of the enzymes and pathways targeted by S-glutathionylation.

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Section: Protein S -Glutathionylation: Roles Of Glutathione In the Protection And Regulation Of Protein Functions Undementioning

confidence: 99%

Glutathione Metabolism in Plants under Stress: Beyond Reactive Oxygen Species Detoxification

2021

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“…BRs play an important role in the regulation of salt tolerance in plants, but not in all cases. Liu et al (2020) found that EBL (24-epibrassinolide) can promote putrescine (Put) transformation to triamine spermidine (Spd) and tetraamine spermine (Spm), so as to significantly improve the germination rate of rape seeds under salt stress. When the salt concentration is lower than 150 mM, the demand for BRs decreases and the same EBL concentration may be in an excessive state.…”

Section: Effect Of Brassinosteroid (Brs) On Plant Salt Resistancementioning

confidence: 99%

“…They defined this phenomenon as hormonal stress-level-dependent biphasic effects (SLDB). Therefore, the study put forward a new view that appropriately raise the level of BR or enhance BR signalling to improve plant salt resistance, either excessive or insufficient BR will have an adverse effect on the plant's salt tolerance (Liu et al 2020).…”

Section: Effect Of Brassinosteroid (Brs) On Plant Salt Resistancementioning

confidence: 99%

Roles of brassinosteroids in plant growth and abiotic stress response

Zheng

Lin

et al. 2020

Plant Growth Regul

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Brassinosteroids (BRs) are widely used class of natural steroidal plant hormones. BRs take part in the regulation of growth and development of plants, maintaining BRs homeostasis, and allowing adaptation to environmental changes through the life cycle. They also play an important role in abiotic stress responses such as drought, salinity, high temperature, low temperature and heavy metal stresses. Through the signal transduction pathway, BRs interact with a variety of transcription factors via a series of phosphorylation cascades to regulate the expression of BR target genes. Thus, they regulate the various growth and development processes of plants. BRs crosstalk with different hormones to regulate plant physiology and development. This review primarily introduces the signaling pathways of BRs, their role in regulating plant growth and development, abiotic stresses, and their interaction with other plant hormones at the transcriptional and post-transcriptional levels. Our review of this topic will provide a complete reference for the study and utilization of BRs in the future.

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“…When plants are exposed to salt stress, brassinosteroids can result in hormonal stress dose–dependent biphasic effects. Increasing BL levels or enhancing BL signals can increase plant resistance to salt ( Liu et al, 2020 ). Treatment with exogenous BL improves the salt tolerance of perennial ryegrass ( Lolium perenne L.) by increasing the activity of antioxidant enzymes and proline content ( Wu et al, 2017 ).…”

Section: Discussionmentioning

confidence: 99%

Coupled Development of Salt Glands, Stomata, and Pavement Cells in Limonium bicolor

et al. 2021

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Salt-resistant plants have different mechanisms to limit the deleterious effects of high salt in soil; for example, recretohalophytes secrete salt from unique structures called salt glands. Salt glands are the first differentiated epidermal structure of the recretohalophyte sea lavender (Limonium bicolor), followed by stomata and pavement cells. While salt glands and stomata develop prior to leaf expansion, it is not clear whether these steps are connected. Here, we explored the effects of the five phytohormones salicylic acid, brassinolide, methyl jasmonate, gibberellic acid, and abscisic acid on the development of the first expanded leaf of L. bicolor and its potential connection to salt gland, stomata, and pavement cell differentiation. We calculated the total number of salt glands, stomata, and pavement cells, as well as leaf area and pavement cell area, and assessed the correlations between these parameters. We detected strong and positive correlations between salt gland number and pavement cell area, between stomatal number and pavement cell area, and between salt gland number and stomatal number. We observed evidence of coupling between the development of salt glands, stomata, and pavement cells in L. bicolor, which lays the foundation for further investigation of the mechanism behind salt gland development.

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Putrescine metabolism modulates the biphasic effects of brassinosteroids on canola and Arabidopsis salt tolerance

Cited by 25 publications

References 65 publications

Glutathione Metabolism in Plants under Stress: Beyond Reactive Oxygen Species Detoxification

Glutathione Metabolism in Plants under Stress: Beyond Reactive Oxygen Species Detoxification

Roles of brassinosteroids in plant growth and abiotic stress response

Coupled Development of Salt Glands, Stomata, and Pavement Cells in Limonium bicolor

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