Deciphering the role of ion channels in early defense signaling against herbivorous insects

Plants and insect herbivores are in a relentless battle to outwit each other. Plants have evolved various strategies to detect herbivores and mount an effective defense system against them. These defenses include physical and structural barriers such as spines, trichomes, cuticle, or chemical compou...

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Main Authors: Gandhi, Akanksha, Kariyat, Rupesh, Harikishore, Amaravadhi, Ayati, Marzieh, Bhunia, Anirban, Sahoo, Nirakar
Other Authors: School of Biological Sciences
Format: Article
Language:English
Published: 2021
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Online Access:https://hdl.handle.net/10356/153837
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1538372023-02-28T16:56:53Z Deciphering the role of ion channels in early defense signaling against herbivorous insects Gandhi, Akanksha Kariyat, Rupesh Harikishore, Amaravadhi Ayati, Marzieh Bhunia, Anirban Sahoo, Nirakar School of Biological Sciences Science::Biological sciences Reactive Oxygen Species Herbivory Plants and insect herbivores are in a relentless battle to outwit each other. Plants have evolved various strategies to detect herbivores and mount an effective defense system against them. These defenses include physical and structural barriers such as spines, trichomes, cuticle, or chemical compounds, including secondary metabolites such as phenolics and terpenes. Plants perceive herbivory by both mechanical and chemical means. Mechanical sensing can occur through the perception of insect biting, piercing, or chewing, while chemical signaling occurs through the perception of various herbivore-derived compounds such as oral secretions (OS) or regurgitant, insect excreta (frass), or oviposition fluids. Interestingly, ion channels or transporters are the first responders for the perception of these mechanical and chemical cues. These transmembrane pore proteins can play an important role in plant defense through the induction of early signaling components such as plasma transmembrane potential (Vₘ) fluctuation, intracellular calcium (Ca²⁺), and reactive oxygen species (ROS) generation, followed by defense gene expression, and, ultimately, plant defense responses. In recent years, studies on early plant defense signaling in response to herbivory have been gaining momentum with the application of genetically encoded GFP-based sensors for real-time monitoring of early signaling events and genetic tools to manipulate ion channels involved in plant-herbivore interactions. In this review, we provide an update on recent developments and advances on early signaling events in plant-herbivore interactions, with an emphasis on the role of ion channels in early plant defense signaling. Published version This research was funded by the College of Sciences, University of Rio Grande Valley startup fund and the University of Texas System Rising STARs Award to N.S. and College of Sciences Seed grant to R.K. 2021-12-30T06:49:40Z 2021-12-30T06:49:40Z 2021 Journal Article Gandhi, A., Kariyat, R., Harikishore, A., Ayati, M., Bhunia, A. & Sahoo, N. (2021). Deciphering the role of ion channels in early defense signaling against herbivorous insects. Cells, 10(9), 2219-. https://dx.doi.org/10.3390/cells10092219 2073-4409 https://hdl.handle.net/10356/153837 10.3390/cells10092219 34571868 2-s2.0-85115890139 9 10 2219 en Cells © 2021 The Author(s). Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Science::Biological sciences
Reactive Oxygen Species
Herbivory
spellingShingle Science::Biological sciences
Reactive Oxygen Species
Herbivory
Gandhi, Akanksha
Kariyat, Rupesh
Harikishore, Amaravadhi
Ayati, Marzieh
Bhunia, Anirban
Sahoo, Nirakar
Deciphering the role of ion channels in early defense signaling against herbivorous insects
description Plants and insect herbivores are in a relentless battle to outwit each other. Plants have evolved various strategies to detect herbivores and mount an effective defense system against them. These defenses include physical and structural barriers such as spines, trichomes, cuticle, or chemical compounds, including secondary metabolites such as phenolics and terpenes. Plants perceive herbivory by both mechanical and chemical means. Mechanical sensing can occur through the perception of insect biting, piercing, or chewing, while chemical signaling occurs through the perception of various herbivore-derived compounds such as oral secretions (OS) or regurgitant, insect excreta (frass), or oviposition fluids. Interestingly, ion channels or transporters are the first responders for the perception of these mechanical and chemical cues. These transmembrane pore proteins can play an important role in plant defense through the induction of early signaling components such as plasma transmembrane potential (Vₘ) fluctuation, intracellular calcium (Ca²⁺), and reactive oxygen species (ROS) generation, followed by defense gene expression, and, ultimately, plant defense responses. In recent years, studies on early plant defense signaling in response to herbivory have been gaining momentum with the application of genetically encoded GFP-based sensors for real-time monitoring of early signaling events and genetic tools to manipulate ion channels involved in plant-herbivore interactions. In this review, we provide an update on recent developments and advances on early signaling events in plant-herbivore interactions, with an emphasis on the role of ion channels in early plant defense signaling.
author2 School of Biological Sciences
author_facet School of Biological Sciences
Gandhi, Akanksha
Kariyat, Rupesh
Harikishore, Amaravadhi
Ayati, Marzieh
Bhunia, Anirban
Sahoo, Nirakar
format Article
author Gandhi, Akanksha
Kariyat, Rupesh
Harikishore, Amaravadhi
Ayati, Marzieh
Bhunia, Anirban
Sahoo, Nirakar
author_sort Gandhi, Akanksha
title Deciphering the role of ion channels in early defense signaling against herbivorous insects
title_short Deciphering the role of ion channels in early defense signaling against herbivorous insects
title_full Deciphering the role of ion channels in early defense signaling against herbivorous insects
title_fullStr Deciphering the role of ion channels in early defense signaling against herbivorous insects
title_full_unstemmed Deciphering the role of ion channels in early defense signaling against herbivorous insects
title_sort deciphering the role of ion channels in early defense signaling against herbivorous insects
publishDate 2021
url https://hdl.handle.net/10356/153837
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