Signal Transduction Components in Guard Cells During Stomatal Closure by Plant Hormones and Microbial Elicitors

Gayatri, G.; Raghavendra, Agepati S.

doi:10.1002/9781118889022.ch30

Cited by 7 publications

(2 citation statements)

References 180 publications

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“…In AMF-inoculated olive plants of the cultivar 'Zarrazi', water stress caused a decrease in conductance and leaf transpiration rate. Guard cells respond to various stimuli including plant hormones and elicitors (Agurla et al, 2017). The major plant hormone inducing stomatal closure is ABA (Ouledali et al, 2019).…”

Section: Phytohormones-induced Water Stress Tolerance In Mycorrhizal ...mentioning

confidence: 99%

Abscisic acid, and abscisic acid-induced water stress tolerance in mycorrhizal herbaceous and olive (Olea europaea) plants

Busso

2023

LIL

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The worldwide expansion of drought-affected areas has a negative effect on crop yield and production, making water stress the most significant abiotic stress, limiting plant growth and development. The use of arbuscular mycorrhizal fungi (AMF) is a strategy that mitigates the effects of this kind of stress in a sustainable way, which occurs due to the increased tolerance to water stress in plants inoculated with these fungi. Modern agriculture is facing the challenge of ensuring global food demand. However, climate change is causing an increase in temperature that leads to severe droughts in some areas. Numerous biotechnological techniques are being used to overcome this drought stress. Among them, the use of AMF is considered an efficient approach to mitigate such stress. AMF provide water stress tolerance through biochemical and physiological mechanisms. Some of the well-known mechanisms include modification of hormonal balances comprising strigolactones, abscisic acid, gibberellic acid, salicylic acid, and jasmonic acid. The symbiosis of AMF changes the expression of the aquaporins (water transporting channels) present in the plasma membrane and tonoplast, improving plant water status.

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Section: Phytohormones-induced Water Stress Tolerance In Mycorrhizal ...mentioning

confidence: 99%

Abscisic acid, and abscisic acid-induced water stress tolerance in mycorrhizal herbaceous and olive (Olea europaea) plants

Busso

2023

LIL

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“…The convergent action of PAOs and RBOHs can be well exemplified by their control of the stomatal aperture. Stress factors, as well as plant hormones, induce stomatal closure via the production of H 2 O 2 [ 40 , 97 ]. H 2 O 2 production activates Ca 2+ channels that are ROS-dependent, thus increasing cytosolic Ca 2+ , triggering the signal transduction cascade and leading to the closure of stomata [ 98 ].…”

Section: The Pao and Nadph-oxidase Regulation Nexusmentioning

confidence: 99%

Polyamine Oxidase-Generated Reactive Oxygen Species in Plant Development and Adaptation: The Polyamine Oxidase—NADPH Oxidase Nexus

2022

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Metabolism and regulation of cellular polyamine levels are crucial for living cells to maintain their homeostasis and function. Polyamine oxidases (PAOs) terminally catabolize polyamines or catalyse the back-conversion reactions when spermine is converted to spermidine and Spd to putrescine. Hydrogen peroxide (H2O2) is a by-product of both the catabolic and back-conversion processes. Pharmacological and genetic approaches have started to uncover the roles of PAO-generated H2O2 in various plant developmental and adaptation processes such as cell differentiation, senescence, programmed cell death, and abiotic and biotic stress responses. Many of these studies have revealed that the superoxide-generating Respiratory Burst Oxidase Homolog (RBOH) NADPH oxidases control the same processes either upstream or downstream of PAO action. Therefore, it is reasonable to suppose that the two enzymes co-ordinately control the cellular homeostasis of reactive oxygen species. The intricate relationship between PAOs and RBOHs is also discussed, posing the hypothesis that these enzymes indirectly control each other’s abundance/function via H2O2.

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Proteomics and phosphoproteomics revealed molecular networks of stomatal immune responses

Pang

Zhang

et al. 2020

Planta

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Signal Transduction Components in Guard Cells During Stomatal Closure by Plant Hormones and Microbial Elicitors

Cited by 7 publications

References 180 publications

Abscisic acid, and abscisic acid-induced water stress tolerance in mycorrhizal herbaceous and olive (Olea europaea) plants

Abscisic acid, and abscisic acid-induced water stress tolerance in mycorrhizal herbaceous and olive (Olea europaea) plants

Polyamine Oxidase-Generated Reactive Oxygen Species in Plant Development and Adaptation: The Polyamine Oxidase—NADPH Oxidase Nexus

Proteomics and phosphoproteomics revealed molecular networks of stomatal immune responses

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