Role of Neurotransmitters (Biomediators) in Plant Responses to Stress

Plants possess a complex signaling system that enables them to sense and adapt to various environmental stressors, including abiotic factors like extreme temperatures, drought, salinity, and toxic heavy metals. While the roles of hormones and signaling molecules in plant stress responses are well es...

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Main Authors: Zahra Dehghanian, Mohammad Ahmadabadi, Behnam Asgari Lajayer, Nazila Bagheri, Masoud Chamani, Vahideh Gougerdchi, Mohsen Hamedpour-Darabi, Weixi Shu, G. W. Price, Bernard Dell
Format: Article
Language:English
Published: MDPI AG 2024-11-01
Series:Plants
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Online Access:https://www.mdpi.com/2223-7747/13/22/3134
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author Zahra Dehghanian
Mohammad Ahmadabadi
Behnam Asgari Lajayer
Nazila Bagheri
Masoud Chamani
Vahideh Gougerdchi
Mohsen Hamedpour-Darabi
Weixi Shu
G. W. Price
Bernard Dell
author_facet Zahra Dehghanian
Mohammad Ahmadabadi
Behnam Asgari Lajayer
Nazila Bagheri
Masoud Chamani
Vahideh Gougerdchi
Mohsen Hamedpour-Darabi
Weixi Shu
G. W. Price
Bernard Dell
author_sort Zahra Dehghanian
collection DOAJ
description Plants possess a complex signaling system that enables them to sense and adapt to various environmental stressors, including abiotic factors like extreme temperatures, drought, salinity, and toxic heavy metals. While the roles of hormones and signaling molecules in plant stress responses are well established, the involvement of neurotransmitters—traditionally linked to animal nervous systems—in plant stress physiology is a relatively underexplored area. Recent findings indicate that neurotransmitters such as gamma-aminobutyric acid, glutamate, serotonin, and dopamine play crucial roles in several physiological processes within plants. They regulate ion channels, adjust stomatal movements, modulate the production of reactive oxygen species, and influence gene expression. Evidence suggests that these neurotransmitters enhance antioxidant defense mechanisms and regulate stress-responsive pathways vital for plant stress tolerance. Additionally, under stressful conditions, neurotransmitters have been shown to impact plant growth, development, and reproductive activities. This review aims to illuminate the emerging understanding of neurotransmitters as key biomediators in plant responses to abiotic stress.
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spelling doaj-art-3ae3a0b6f0fc43e585a1e5e78f9c1ec62024-11-26T18:18:40ZengMDPI AGPlants2223-77472024-11-011322313410.3390/plants13223134Role of Neurotransmitters (Biomediators) in Plant Responses to StressZahra Dehghanian0Mohammad Ahmadabadi1Behnam Asgari Lajayer2Nazila Bagheri3Masoud Chamani4Vahideh Gougerdchi5Mohsen Hamedpour-Darabi6Weixi Shu7G. W. Price8Bernard Dell9Department of Biotechnology, Faculty of Agriculture, Azarbaijan Shahid Madani University, Tabriz 53751-71379, IranDepartment of Biotechnology, Faculty of Agriculture, Azarbaijan Shahid Madani University, Tabriz 53751-71379, IranFaculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, CanadaDepartment of Biotechnology, Faculty of Agriculture, Azarbaijan Shahid Madani University, Tabriz 53751-71379, IranDepartment of Plant Protection, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil 56199-11367, IranDepartment of Plant Breeding and Biotechnology, Faculty of Agriculture, University of Tabriz, Tabriz 51666-16471, IranDepartment of Horticultural Science, Faculty of Agriculture, Shiraz University, Shiraz 71946-84471, IranFaculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, CanadaFaculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, CanadaCentre for Crop and Food Innovation, Murdoch University, Murdoch 6150, AustraliaPlants possess a complex signaling system that enables them to sense and adapt to various environmental stressors, including abiotic factors like extreme temperatures, drought, salinity, and toxic heavy metals. While the roles of hormones and signaling molecules in plant stress responses are well established, the involvement of neurotransmitters—traditionally linked to animal nervous systems—in plant stress physiology is a relatively underexplored area. Recent findings indicate that neurotransmitters such as gamma-aminobutyric acid, glutamate, serotonin, and dopamine play crucial roles in several physiological processes within plants. They regulate ion channels, adjust stomatal movements, modulate the production of reactive oxygen species, and influence gene expression. Evidence suggests that these neurotransmitters enhance antioxidant defense mechanisms and regulate stress-responsive pathways vital for plant stress tolerance. Additionally, under stressful conditions, neurotransmitters have been shown to impact plant growth, development, and reproductive activities. This review aims to illuminate the emerging understanding of neurotransmitters as key biomediators in plant responses to abiotic stress.https://www.mdpi.com/2223-7747/13/22/3134abiotic stressbiosynthesisgrowth regulationneurotransmittersplant signaling
spellingShingle Zahra Dehghanian
Mohammad Ahmadabadi
Behnam Asgari Lajayer
Nazila Bagheri
Masoud Chamani
Vahideh Gougerdchi
Mohsen Hamedpour-Darabi
Weixi Shu
G. W. Price
Bernard Dell
Role of Neurotransmitters (Biomediators) in Plant Responses to Stress
Plants
abiotic stress
biosynthesis
growth regulation
neurotransmitters
plant signaling
title Role of Neurotransmitters (Biomediators) in Plant Responses to Stress
title_full Role of Neurotransmitters (Biomediators) in Plant Responses to Stress
title_fullStr Role of Neurotransmitters (Biomediators) in Plant Responses to Stress
title_full_unstemmed Role of Neurotransmitters (Biomediators) in Plant Responses to Stress
title_short Role of Neurotransmitters (Biomediators) in Plant Responses to Stress
title_sort role of neurotransmitters biomediators in plant responses to stress
topic abiotic stress
biosynthesis
growth regulation
neurotransmitters
plant signaling
url https://www.mdpi.com/2223-7747/13/22/3134
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