Update on roles of nitric oxide in regulating stomatal closure

Sun, Li Rong; Yue, Cai Meng; Hao, Fu Shun

doi:10.1080/15592324.2019.1649569

Cited by 33 publications

(18 citation statements)

References 46 publications

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“…These observations imply that RCS and ABA could enable guard cells to respond to both biotic and abiotic stress conditions. Several authors had reviewed the details of the ABA-induced signal transduction pathway (Raghavendra et al, 2010;Munemasa et al, 2015;Sierla et al, 2016;Agurla et al, 2018a;Kolbert et al, 2019;Saito and Uozumi, 2019;Sun et al, 2019). Several of the signaling components during ABA-induced stomatal closure can protect against pathogens ( Table 2).…”

Section: Signaling Components In Guard Cells Triggered By Aba: Role Imentioning

confidence: 99%

Abscisic Acid-Induced Stomatal Closure: An Important Component of Plant Defense Against Abiotic and Biotic Stress

2021

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Abscisic acid (ABA) is a stress hormone that accumulates under different abiotic and biotic stresses. A typical effect of ABA on leaves is to reduce transpirational water loss by closing stomata and parallelly defend against microbes by restricting their entry through stomatal pores. ABA can also promote the accumulation of polyamines, sphingolipids, and even proline. Stomatal closure by compounds other than ABA also helps plant defense against both abiotic and biotic stress factors. Further, ABA can interact with other hormones, such as methyl jasmonate (MJ) and salicylic acid (SA). Such cross-talk can be an additional factor in plant adaptations against environmental stresses and microbial pathogens. The present review highlights the recent progress in understanding ABA’s multifaceted role under stress conditions, particularly stomatal closure. We point out the importance of reactive oxygen species (ROS), reactive carbonyl species (RCS), nitric oxide (NO), and Ca2+ in guard cells as key signaling components during the ABA-mediated short-term plant defense reactions. The rise in ROS, RCS, NO, and intracellular Ca2+ triggered by ABA can promote additional events involved in long-term adaptive measures, including gene expression, accumulation of compatible solutes to protect the cell, hypersensitive response (HR), and programmed cell death (PCD). Several pathogens can counteract and try to reopen stomata. Similarly, pathogens attempt to trigger PCD of host tissue to their benefit. Yet, ABA-induced effects independent of stomatal closure can delay the pathogen spread and infection within leaves. Stomatal closure and other ABA influences can be among the early steps of defense and a crucial component of plants’ innate immunity response. Stomatal guard cells are quite sensitive to environmental stress and are considered good model systems for signal transduction studies. Further research on the ABA-induced stomatal closure mechanism can help us design strategies for plant/crop adaptations to stress.

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Section: Signaling Components In Guard Cells Triggered By Aba: Role Imentioning

confidence: 99%

Abscisic Acid-Induced Stomatal Closure: An Important Component of Plant Defense Against Abiotic and Biotic Stress

2021

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“…Therefore, stomata play essential roles in abiotic and biotic stress responses ( Blatt et al, 2017 ). The regulation of stomatal movement is complex, and as time progresses, researchers discover new signaling elements which make the signaling networks of stomatal movement more complex ( Chen et al, 2019 ; Sun et al, 2019 ). Recent years, in addition to plant growth and development, plant small signaling peptides have been implicated in stomatal aperture regulation ( Li et al, 2014 ; Zheng et al, 2018 ; Qu et al, 2019 ).…”

Section: Discussionmentioning

confidence: 99%

Secreted Peptide PIP1 Induces Stomatal Closure by Activation of Guard Cell Anion Channels in Arabidopsis

et al. 2020

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Plant stomata which consist of a pair of guard cells, are not only finely controlled to balance water loss as transpiration and CO 2 absorption for photosynthesis, but also serve as the major sites to defend against pathogen attack, thus allowing plants to respond appropriately to abiotic and biotic stress conditions. The regulatory signaling network for stomatal movement is complex in nature, and plant peptides have been shown to be involved in signaling processes. Arabidopsis secreted peptide PIP1 was previously identified as an endogenous elicitor, which induced immune response through its receptor, RLK7. PIP1-RLK7 can activate stomatal immunity against the bacterial strain Pst DC3118. However, the molecular mechanism of PIP1 in stomatal regulation is still unclear and additional new factors need to be discovered. In this study, we further clarified that PIP1 could function as an important regulator in the induction of stomatal closure. The results showed that PIP1 could promote stomata to close in a certain range of concentrations and response time. In addition, we uncovered that PIP1-RLK7 signaling regulated stomatal response by activating S-type anion channel SLAC1. PIP1-induced stomatal closure was impaired in bak1 , mpk3 , and mpk6 mutants, indicating that BAK1 and MPK3/MPK6 were required for PIP1-regulated stomatal movement. Our research further deciphered that OST1 which acts as an essential ABA-signaling component, also played a role in PIP1-induced stomatal closure. In addition, ROS participated in PIP1-induced stomatal closure and PIP1 could activate Ca 2+ permeable channels. In conclusion, we reveal the role of peptide PIP1 in triggering stomatal closure and the possible mechanism of PIP1 in the regulation of stomatal apertures. Our findings improve the understanding of the role of PIP1 in stomatal regulation and immune response.

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“…To avoid this defense mechanism, herbivore modified somehow the plant capacity to absorb the reactive nitrogen, prompting a decrease in foliar nitrogen uptake and limiting the concentration of metabolites in leaves. Moreover, accumulating evidences indicate that an interactive fashion of phytohormones and NO regulates guard cell ABA-signaling and stomatal closure, which restricts the foliar uptake of NO 2 ( Sun et al, 2019 ). In turn, only few available reports have demonstrated the function of enzymes and other molecules associated with NO metabolic pathway in the generation of plant defenses to pests.…”

Section: No In Plant–herbivore Interactionsmentioning

confidence: 99%

Nitric Oxide, an Essential Intermediate in the Plant–Herbivore Interaction

et al. 2021

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Reactive nitrogen species (RNS), mainly nitric oxide (NO), are highly reactive molecules with a prominent role in plant response to numerous stresses including herbivores, although the information is still very limited. This perspective article compiles the current progress in determining the NO function, as either a signal molecule, a metabolic intermediate, or a toxic oxidative product, as well as the contribution of molecules associated with NO metabolic pathway in the generation of plant defenses against phytophagous arthropods, in particular to insects and acari.

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Update on roles of nitric oxide in regulating stomatal closure

Cited by 33 publications

References 46 publications

Abscisic Acid-Induced Stomatal Closure: An Important Component of Plant Defense Against Abiotic and Biotic Stress

Abscisic Acid-Induced Stomatal Closure: An Important Component of Plant Defense Against Abiotic and Biotic Stress

Secreted Peptide PIP1 Induces Stomatal Closure by Activation of Guard Cell Anion Channels in Arabidopsis

Nitric Oxide, an Essential Intermediate in the Plant–Herbivore Interaction

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