2018
DOI: 10.3390/ijms19123934
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Root Abscisic Acid Contributes to Defending Photoinibition in Jerusalem Artichoke (Helianthus tuberosus L.) under Salt Stress

Abstract: The aim of the study was to examine the role of root abscisic acid (ABA) in protecting photosystems and photosynthesis in Jerusalem artichoke against salt stress. Potted plants were pretreated by a specific ABA synthesis inhibitor sodium tungstate and then subjected to salt stress (150 mM NaCl). Tungstate did not directly affect root ABA content and photosynthetic parameters, whereas it inhibited root ABA accumulation and induced a greater decrease in photosynthetic rate under salt stress. The maximal photoche… Show more

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Cited by 18 publications
(14 citation statements)
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“…6). Photosystems photoinhibition usually arises in parallel with elevated leaf lipid peroxidation under environmental stresses, and notably, the negative correlation of ROS production with PSI and PSII photochemical capacity under salt stress has been evidenced [18,25,28,44]. As a result, unchanged lipid peroxidation and H 2 O 2 concentration implied that photosystems were less endangered by salt-induced oxidative stress in Glycine soja than Glycine max.…”
Section: Discussionmentioning
confidence: 99%
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“…6). Photosystems photoinhibition usually arises in parallel with elevated leaf lipid peroxidation under environmental stresses, and notably, the negative correlation of ROS production with PSI and PSII photochemical capacity under salt stress has been evidenced [18,25,28,44]. As a result, unchanged lipid peroxidation and H 2 O 2 concentration implied that photosystems were less endangered by salt-induced oxidative stress in Glycine soja than Glycine max.…”
Section: Discussionmentioning
confidence: 99%
“…Pn and g s were simultaneously recorded. Modulated chlorophyll fluorescence was also recorded for calculating ETR and 1-qP according to previous studies [25,55].…”
Section: Measurements Of Gas Exchange and Modulated Chlorophyll Fluormentioning
confidence: 99%
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