On the Nonmonotonic, Hormetic Photoprotective Response of Plants to Stress

On the Nonmonotonic, Hormetic Photoprotective Response of Plants to Stress

Accumulated evidence show that reactive species play a dual role in plants as well, with likely biphasic responses. This suggests that photoprotective mechanisms may also show similar patterns because they are highly related to reactive species. The nonphotochemical quenching (NPQ) is an index of he...

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Main Authors: Evgenios Agathokleous, Mitsutoshi Kitao, Hisanori Harayama
Format: Article
Language:English
Published: SAGE Publishing 2019-04-01
Series:Dose-Response
Online Access:https://doi.org/10.1177/1559325819838420
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spelling doaj-3bbd0638c4364cbbb440280c22594f1d2020-11-25T03:28:14ZengSAGE PublishingDose-Response1559-32582019-04-011710.1177/1559325819838420On the Nonmonotonic, Hormetic Photoprotective Response of Plants to StressEvgenios Agathokleous0Mitsutoshi Kitao1Hisanori Harayama2 Hokkaido Research Center, Forestry and Forest Products Research Institute (FFPRI), Forest Research and Management Organization, Sapporo, Hokkaido, Japan Hokkaido Research Center, Forestry and Forest Products Research Institute (FFPRI), Forest Research and Management Organization, Sapporo, Hokkaido, Japan Hokkaido Research Center, Forestry and Forest Products Research Institute (FFPRI), Forest Research and Management Organization, Sapporo, Hokkaido, JapanAccumulated evidence show that reactive species play a dual role in plants as well, with likely biphasic responses. This suggests that photoprotective mechanisms may also show similar patterns because they are highly related to reactive species. The nonphotochemical quenching (NPQ) is an index of heat dissipation of excitation energy in the antenna system. We present here preliminary evidence from some published studies showing significant biphasic response of NPQ to increasing doses of stress, with U-shaped or inverted U-shaped dose–response relationships, typical of hormesis. This evidence provides a remarkable perspective for designing novel studies where the fate of light energy will be seen through the lens of hormesis.https://doi.org/10.1177/1559325819838420
collection DOAJ
language English
format Article
sources DOAJ
author Evgenios Agathokleous
Mitsutoshi Kitao
Hisanori Harayama
spellingShingle Evgenios Agathokleous
Mitsutoshi Kitao
Hisanori Harayama
On the Nonmonotonic, Hormetic Photoprotective Response of Plants to Stress
Dose-Response
author_facet Evgenios Agathokleous
Mitsutoshi Kitao
Hisanori Harayama
author_sort Evgenios Agathokleous
title On the Nonmonotonic, Hormetic Photoprotective Response of Plants to Stress
title_short On the Nonmonotonic, Hormetic Photoprotective Response of Plants to Stress
title_full On the Nonmonotonic, Hormetic Photoprotective Response of Plants to Stress
title_fullStr On the Nonmonotonic, Hormetic Photoprotective Response of Plants to Stress
title_full_unstemmed On the Nonmonotonic, Hormetic Photoprotective Response of Plants to Stress
title_sort on the nonmonotonic, hormetic photoprotective response of plants to stress
publisher SAGE Publishing
series Dose-Response
issn 1559-3258
publishDate 2019-04-01
description Accumulated evidence show that reactive species play a dual role in plants as well, with likely biphasic responses. This suggests that photoprotective mechanisms may also show similar patterns because they are highly related to reactive species. The nonphotochemical quenching (NPQ) is an index of heat dissipation of excitation energy in the antenna system. We present here preliminary evidence from some published studies showing significant biphasic response of NPQ to increasing doses of stress, with U-shaped or inverted U-shaped dose–response relationships, typical of hormesis. This evidence provides a remarkable perspective for designing novel studies where the fate of light energy will be seen through the lens of hormesis.
url https://doi.org/10.1177/1559325819838420
work_keys_str_mv AT evgeniosagathokleous onthenonmonotonichormeticphotoprotectiveresponseofplantstostress
AT mitsutoshikitao onthenonmonotonichormeticphotoprotectiveresponseofplantstostress
AT hisanoriharayama onthenonmonotonichormeticphotoprotectiveresponseofplantstostress
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