5-Aminolevulinic acid promotes low-light tolerance by regulating chloroplast ultrastructure, photosynthesis, and antioxidant capacity in tall fescue

5-Aminolevulinic acid promotes low-light tolerance by regulating chloroplast ultrastructure, photosynthesis, and antioxidant capacity in tall fescue

Copyright © 2022 Elsevier Masson SAS. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 190(2022) vom: 01. Nov., Seite 248-261
1. Verfasser: Long, Si (VerfasserIn)
Weitere Verfasser: Liu, Bowen, Gong, Jiongjiong, Wang, Ruijia, Gao, Shuanghong, Zhu, Tianqi, Guo, Huan, Liu, Tieyuan, Xu, Yuefei
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Antioxidant capacity Chloroplast ultrastructure Low-light stress Photosynthesis Photosynthetic pigments Tall fescue Antioxidants Photosystem II Protein Complex Reactive Oxygen Species mehr... Superoxides 11062-77-4 Chlorophyll 1406-65-1 Malondialdehyde 4Y8F71G49Q Aminolevulinic Acid 88755TAZ87 Hydrogen Peroxide BBX060AN9V Ribulose-Bisphosphate Carboxylase EC 4.1.1.39 Glutathione GAN16C9B8O Ascorbic Acid PQ6CK8PD0R Glutathione Disulfide ULW86O013H Dehydroascorbic Acid Y2Z3ZTP9UM
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245 1 0 |a 5-Aminolevulinic acid promotes low-light tolerance by regulating chloroplast ultrastructure, photosynthesis, and antioxidant capacity in tall fescue 
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520 |a Copyright © 2022 Elsevier Masson SAS. All rights reserved. 
520 |a The vital signaling molecule 5-Aminolevulinic acid (ALA) plays critical roles in signal transduction and biological modulation under abiotic stresses. In this study, we explored the effects of exogenous ALA on low-light (LL) stress-induced photosynthesis and antioxidant system damage in tall fescue (Festuca arundinacea Schreb.) seedlings. LL stress decreased morphological index values and chlorophyll contents, while also reduced net photosynthetic rate (Pn) and the maximum quantum yield of photosystem II photochemistry (Fv/Fm). Notably, these restrictions were substantially alleviated by exogenous ALA. Moreover, the contents of chlorophyll and its synthetic precursors were significantly increased after ALA treatment. Meanwhile, ALA observably enhanced expression level of FaCHLG, FaHEMA, FaPOR, and FaCAO, which encode the chlorophyll precursors biosynthesis enzymes. Exogenous ALA repaired the damage to the chloroplast ultrastructure caused by LL stress and promoted the formation of ordered thylakoids and grana lamella. ALA also improved Rubisco activity and expression level of the photosynthetic enzyme genes FaRuBP, FaPRK, and FaGADPH. Additionally, application of exogenous ALA decreased relative electrolytic leakage and the accumulation of malondialdehyde (MDA), hydrogen peroxide (H2O2), and superoxide radicals (O2∙-), and increased the gene expression levels and activity of antioxidant enzymes. The ratios of ascorbic acid (AsA) to dehydroascorbic acid (DHA) and reduced glutathione (GSH) to oxidized glutathione (GSSG) were also increased significantly by application of ALA. Furthermore, all responses could be reversed by treatment with levulinic acid (LA). Thus, these results indicated that ALA protects tall fescue from LL stress through scavenging ROS, improving photosynthetic enzyme activity levels, increasing photosynthetic pigments contents, repairing chloroplast damage, and enhancing the photosynthesis rate 
650 4 |a Journal Article 
650 4 |a Antioxidant capacity 
650 4 |a Chloroplast ultrastructure 
650 4 |a Low-light stress 
650 4 |a Photosynthesis 
650 4 |a Photosynthetic pigments 
650 4 |a Tall fescue 
650 7 |a Antioxidants  |2 NLM 
650 7 |a Photosystem II Protein Complex  |2 NLM 
650 7 |a Reactive Oxygen Species  |2 NLM 
650 7 |a Superoxides  |2 NLM 
650 7 |a 11062-77-4  |2 NLM 
650 7 |a Chlorophyll  |2 NLM 
650 7 |a 1406-65-1  |2 NLM 
650 7 |a Malondialdehyde  |2 NLM 
650 7 |a 4Y8F71G49Q  |2 NLM 
650 7 |a Aminolevulinic Acid  |2 NLM 
650 7 |a 88755TAZ87  |2 NLM 
650 7 |a Hydrogen Peroxide  |2 NLM 
650 7 |a BBX060AN9V  |2 NLM 
650 7 |a Ribulose-Bisphosphate Carboxylase  |2 NLM 
650 7 |a EC 4.1.1.39  |2 NLM 
650 7 |a Glutathione  |2 NLM 
650 7 |a GAN16C9B8O  |2 NLM 
650 7 |a Ascorbic Acid  |2 NLM 
650 7 |a PQ6CK8PD0R  |2 NLM 
650 7 |a Glutathione Disulfide  |2 NLM 
650 7 |a ULW86O013H  |2 NLM 
650 7 |a Dehydroascorbic Acid  |2 NLM 
650 7 |a Y2Z3ZTP9UM  |2 NLM 
700 1 |a Liu, Bowen  |e verfasserin  |4 aut 
700 1 |a Gong, Jiongjiong  |e verfasserin  |4 aut 
700 1 |a Wang, Ruijia  |e verfasserin  |4 aut 
700 1 |a Gao, Shuanghong  |e verfasserin  |4 aut 
700 1 |a Zhu, Tianqi  |e verfasserin  |4 aut 
700 1 |a Guo, Huan  |e verfasserin  |4 aut 
700 1 |a Liu, Tieyuan  |e verfasserin  |4 aut 
700 1 |a Xu, Yuefei  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Plant physiology and biochemistry : PPB  |d 1991  |g 190(2022) vom: 01. Nov., Seite 248-261  |w (DE-627)NLM098178261  |x 1873-2690  |7 nnas 
773 1 8 |g volume:190  |g year:2022  |g day:01  |g month:11  |g pages:248-261 
856 4 0 |u http://dx.doi.org/10.1016/j.plaphy.2022.09.010  |3 Volltext 
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