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Sub-high Temperature and High Light Intensity Induced Irreversible Inhibition on Photosynthesis System of Tomato Plant (Solanum lycopersicum L.)

High temperature and high light intensity is a common environment posing a great risk to organisms. This study aimed to elucidate the effects of sub-high temperature and high light intensity stress (HH, 35°C, 1000 μmol⋅m(-2)⋅s(-1)) and recovery on the photosynthetic mechanism, photoinhibiton of phot...

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Autores principales: Lu, Tao, Meng, Zhaojuan, Zhang, Guoxian, Qi, Mingfang, Sun, Zhouping, Liu, Yufeng, Li, Tianlai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5352666/
https://www.ncbi.nlm.nih.gov/pubmed/28360922
http://dx.doi.org/10.3389/fpls.2017.00365
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author Lu, Tao
Meng, Zhaojuan
Zhang, Guoxian
Qi, Mingfang
Sun, Zhouping
Liu, Yufeng
Li, Tianlai
author_facet Lu, Tao
Meng, Zhaojuan
Zhang, Guoxian
Qi, Mingfang
Sun, Zhouping
Liu, Yufeng
Li, Tianlai
author_sort Lu, Tao
collection PubMed
description High temperature and high light intensity is a common environment posing a great risk to organisms. This study aimed to elucidate the effects of sub-high temperature and high light intensity stress (HH, 35°C, 1000 μmol⋅m(-2)⋅s(-1)) and recovery on the photosynthetic mechanism, photoinhibiton of photosystem II (PSII) and photosystem I (PSI), and reactive oxygen (ROS) metabolism of tomato seedlings. The results showed that with prolonged stress time, net photosynthetic rate (Pn), Rubisco activity, maximal photochemistry efficiency (Fv/Fm), efficient quantum yield and electron transport of PSII [Y(II) and ETR(II)] and PSI [Y(I) and ETR(I)] decreased significantly whereas yield of non-regulated and regulated energy dissipation of PSII [Y(NO) and Y(NPQ)] increased sharply. The donor side limitation of PSI [Y(ND)] increased but the acceptor side limitation of PSI [Y(NA)] decreased. Content of malondialdehyde (MDA) and hydrogen peroxide (H(2)O(2)) were increased while activity of superoxide dismutase (SOD) and peroxidase (POD) were significantly inhibited compared with control. HH exposure affected photosynthetic carbon assimilation, multiple sites in PSII and PSI, ROS accumulation and elimination of Solanum lycopersicum L.
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spelling pubmed-53526662017-03-30 Sub-high Temperature and High Light Intensity Induced Irreversible Inhibition on Photosynthesis System of Tomato Plant (Solanum lycopersicum L.) Lu, Tao Meng, Zhaojuan Zhang, Guoxian Qi, Mingfang Sun, Zhouping Liu, Yufeng Li, Tianlai Front Plant Sci Plant Science High temperature and high light intensity is a common environment posing a great risk to organisms. This study aimed to elucidate the effects of sub-high temperature and high light intensity stress (HH, 35°C, 1000 μmol⋅m(-2)⋅s(-1)) and recovery on the photosynthetic mechanism, photoinhibiton of photosystem II (PSII) and photosystem I (PSI), and reactive oxygen (ROS) metabolism of tomato seedlings. The results showed that with prolonged stress time, net photosynthetic rate (Pn), Rubisco activity, maximal photochemistry efficiency (Fv/Fm), efficient quantum yield and electron transport of PSII [Y(II) and ETR(II)] and PSI [Y(I) and ETR(I)] decreased significantly whereas yield of non-regulated and regulated energy dissipation of PSII [Y(NO) and Y(NPQ)] increased sharply. The donor side limitation of PSI [Y(ND)] increased but the acceptor side limitation of PSI [Y(NA)] decreased. Content of malondialdehyde (MDA) and hydrogen peroxide (H(2)O(2)) were increased while activity of superoxide dismutase (SOD) and peroxidase (POD) were significantly inhibited compared with control. HH exposure affected photosynthetic carbon assimilation, multiple sites in PSII and PSI, ROS accumulation and elimination of Solanum lycopersicum L. Frontiers Media S.A. 2017-03-16 /pmc/articles/PMC5352666/ /pubmed/28360922 http://dx.doi.org/10.3389/fpls.2017.00365 Text en Copyright © 2017 Lu, Meng, Zhang, Qi, Sun, Liu and Li. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Lu, Tao
Meng, Zhaojuan
Zhang, Guoxian
Qi, Mingfang
Sun, Zhouping
Liu, Yufeng
Li, Tianlai
Sub-high Temperature and High Light Intensity Induced Irreversible Inhibition on Photosynthesis System of Tomato Plant (Solanum lycopersicum L.)
title Sub-high Temperature and High Light Intensity Induced Irreversible Inhibition on Photosynthesis System of Tomato Plant (Solanum lycopersicum L.)
title_full Sub-high Temperature and High Light Intensity Induced Irreversible Inhibition on Photosynthesis System of Tomato Plant (Solanum lycopersicum L.)
title_fullStr Sub-high Temperature and High Light Intensity Induced Irreversible Inhibition on Photosynthesis System of Tomato Plant (Solanum lycopersicum L.)
title_full_unstemmed Sub-high Temperature and High Light Intensity Induced Irreversible Inhibition on Photosynthesis System of Tomato Plant (Solanum lycopersicum L.)
title_short Sub-high Temperature and High Light Intensity Induced Irreversible Inhibition on Photosynthesis System of Tomato Plant (Solanum lycopersicum L.)
title_sort sub-high temperature and high light intensity induced irreversible inhibition on photosynthesis system of tomato plant (solanum lycopersicum l.)
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5352666/
https://www.ncbi.nlm.nih.gov/pubmed/28360922
http://dx.doi.org/10.3389/fpls.2017.00365
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