Slower development of PSI activity limits photosynthesis during Euonymus japonicus leaf development

Slower development of PSI activity limits photosynthesis during Euonymus japonicus leaf development

Copyright © 2019 Elsevier Masson SAS. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 136(2019) vom: 04. März, Seite 13-21
1. Verfasser: Zhong, Xin (VerfasserIn)
Weitere Verfasser: Che, Xingkai, Zhang, Zishan, Li, Shuhao, Li, Qingming, Li, Yuting, Gao, Huiyuan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Development of Euonymus japonicus Fluorescence transient PSI and PSII Photosynthetic core protein Photosynthetic electron transport RuBP regeneration Photosystem I Protein Complex Chlorophyll 1406-65-1 mehr... NADP 53-59-8 Adenosine Triphosphate 8L70Q75FXE
Beschreibung
Zusammenfassung:Copyright © 2019 Elsevier Masson SAS. All rights reserved.
This study primarily explored the limiting factor for photosynthesis during the development of Euonymus japonicus leaves. The analysis of the chlorophyll fluorescence transient, pulse-modulated fluorescence, 820-nm reflection, and expression of core proteins for photosystems demonstrated that photosystem II (PSII) activity developed more rapidly than did photosystem I (PSI) activity. The slower development of the PSI activity restricted linear and cyclic electron transport and thus inhibited the production of ATP and NADPH, which inhibits the activation of Rubisco, resulting in low activity of carboxylation efficiency. The application of exogenous NADPH (50 μM) and ATP (100 μM) to leaves remarkably increased the Pn and CE in the youngest leaf but not in the fully expanded leaf, which indicated that an inadequate supply of the assimilatory power significantly inhibited CE and Pn. We concluded that the slower development of the PSI activity was one of the most important limiting factors for photosynthesis during the development of E. japonicus leaves
Beschreibung:Date Completed 11.02.2019
Date Revised 30.09.2020
published: Print-Electronic
Citation Status MEDLINE
ISSN:1873-2690
DOI:10.1016/j.plaphy.2019.01.004