Chloroplast retrograde regulation of heat stress responses in plants

It is well known that intracellular signaling from chloroplast to nucleus plays a vital role in stress responses to survive environmental perturbations. The chloroplasts were proposed as sensors to heat stress since components of the photosynthetic apparatus housed in the chloroplast are the primary...

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Main Authors: Ai-Zhen eSun, Fang-Qing eGuo
Format: Article
Language:English
Published: Frontiers Media S.A. 2016-03-01
Series:Frontiers in Plant Science
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fpls.2016.00398/full
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author Ai-Zhen eSun
Fang-Qing eGuo
author_facet Ai-Zhen eSun
Fang-Qing eGuo
author_sort Ai-Zhen eSun
collection DOAJ
description It is well known that intracellular signaling from chloroplast to nucleus plays a vital role in stress responses to survive environmental perturbations. The chloroplasts were proposed as sensors to heat stress since components of the photosynthetic apparatus housed in the chloroplast are the primary susceptible targets of thermal damage in plants. Thus, communicating subcellular perturbations to the nucleus is critical during exposure to extreme environmental conditions such as heat stress. By coordinating expression of stress specific nuclear genes essential for adaptive responses to hostile environment, plants optimize different cell functions and activate acclimation responses through retrograde signaling pathways. Such diverse metabolic and biosynthetic functions require efficient communication between plastids and the nucleus. In recent years several putative retrograde signals released from plastids that regulate nuclear genes have been identified and signaling pathways have been proposed. In this review, we provide an update on retrograde signals derived from tetrapyrroles, carotenoids, reactive oxygen species (ROS) and organellar gene expression (OGE) in the context of heat stress responses and address their roles in retrograde regulation of heat-responsive gene expression, systemic acquired acclimation and cellular coordination in plants.
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spelling doaj.art-d4b8e5f5a20a4f8c912b560ec888e3f32022-12-22T01:31:28ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2016-03-01710.3389/fpls.2016.00398183947Chloroplast retrograde regulation of heat stress responses in plantsAi-Zhen eSun0Fang-Qing eGuo1The National Key Laboratory of Plant Molecular Genetics, National Center of Plant Gene Research (Shanghai) and CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology & Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of SciencesThe National Key Laboratory of Plant Molecular Genetics, National Center of Plant Gene Research (Shanghai) and CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology & Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of SciencesIt is well known that intracellular signaling from chloroplast to nucleus plays a vital role in stress responses to survive environmental perturbations. The chloroplasts were proposed as sensors to heat stress since components of the photosynthetic apparatus housed in the chloroplast are the primary susceptible targets of thermal damage in plants. Thus, communicating subcellular perturbations to the nucleus is critical during exposure to extreme environmental conditions such as heat stress. By coordinating expression of stress specific nuclear genes essential for adaptive responses to hostile environment, plants optimize different cell functions and activate acclimation responses through retrograde signaling pathways. Such diverse metabolic and biosynthetic functions require efficient communication between plastids and the nucleus. In recent years several putative retrograde signals released from plastids that regulate nuclear genes have been identified and signaling pathways have been proposed. In this review, we provide an update on retrograde signals derived from tetrapyrroles, carotenoids, reactive oxygen species (ROS) and organellar gene expression (OGE) in the context of heat stress responses and address their roles in retrograde regulation of heat-responsive gene expression, systemic acquired acclimation and cellular coordination in plants.http://journal.frontiersin.org/Journal/10.3389/fpls.2016.00398/fullHeat-Shock ResponseReactive Oxygen Specieschloroplastretrograde signalingPlastid signals
spellingShingle Ai-Zhen eSun
Fang-Qing eGuo
Chloroplast retrograde regulation of heat stress responses in plants
Frontiers in Plant Science
Heat-Shock Response
Reactive Oxygen Species
chloroplast
retrograde signaling
Plastid signals
title Chloroplast retrograde regulation of heat stress responses in plants
title_full Chloroplast retrograde regulation of heat stress responses in plants
title_fullStr Chloroplast retrograde regulation of heat stress responses in plants
title_full_unstemmed Chloroplast retrograde regulation of heat stress responses in plants
title_short Chloroplast retrograde regulation of heat stress responses in plants
title_sort chloroplast retrograde regulation of heat stress responses in plants
topic Heat-Shock Response
Reactive Oxygen Species
chloroplast
retrograde signaling
Plastid signals
url http://journal.frontiersin.org/Journal/10.3389/fpls.2016.00398/full
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AT fangqingeguo chloroplastretrograderegulationofheatstressresponsesinplants