YIC-IR  > 中科院海岸带环境过程与生态修复重点实验室
Contrasting photosynthesis and photoinhibition in tetraploid and its autodiploid honeysuckle (Lonicera japonica Thunb.) under salt stress
Yan, Kun1,2; Wu, Congwen1,2,3; Zhang, Lihua1,2; Chen, Xiaobing1,2; Yan, K (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Chunhui Rd 17, Yantai 264003, Peoples R China. kyan@yic.ac.cn
Source PublicationFRONTIERS IN PLANT SCIENCE
ISSN1664-462X
2015-04-09
Volume6Pages:227
KeywordHoneysuckle Na++ Photosystem Photosynthetic Electron Transport Polyploidy
DOI10.3389/fpls.2015.00227
Contribution Rank[Yan, Kun; Wu, Congwen; Zhang, Lihua; Chen, Xiaobing] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China; [Yan, Kun; Wu, Congwen; Zhang, Lihua; Chen, Xiaobing] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China; [Wu, Congwen] Yantai Univ, Acad Life Sci, Yantai, Peoples R China
Department中科院海岸带环境过程与生态修复重点实验室
AbstractHoneysuckle (Lonicera japonica Thunb.) is a popular landscape plant. This study was to explore leaf photosynthetic characterization with emphasis on the coordination between photosystem II (PSII) and photosystem I (PSI) in tetraploid and its autodiploid honeysuckle (TH and DH) upon salt stress (300 mM NaCl). Leaf photosynthetic rate and carboxylation efficiency in DH and TH were significantly decreased under salt stress, and the decrease was greater in DH. PSII photoinhibition was induced in DH under salt stress, as the maximum quantum yield of PSII (Fv/Fm) was significantly decreased. PSII photoinhibition declined electron flow to PSI, but did not prevent PSI photoinhibition, as the maximal photochemical capacity of PSI (Delta MR/MR0) was significantly decreased by salt stress. According to the significant decrease in PSI oxidation amplitude in the first 1 s red illumination, PSI photoinhibition was more severe than PSII photoinhibition. As a result, PSII and PSI coordination was destroyed. Comparatively, salt-induced photoinhibition did not occur in TH, as no significant change was observed in Fv/Fm and Delta MR/MR0. Consequently, PSII and PSI coordination was not significantly affected by salt stress. In conclusion, TH maintained normal coordination between PSII and PSI by preventing photoinhibition and exhibited higher leaf photosynthetic activity than DH under salt stress. Compared with DH, lower leaf ionic toxicity due to greater root Na+ extrusion and restriction of Na+ transport to leaf might be responsible for maintaining higher leaf photosynthetic capacity in TH under salt stress.
SubtypeArticle
Indexed BySCI
Language英语
WOS KeywordPHOTOSYSTEM-I ; CHLOROPHYLL FLUORESCENCE ; SALINITY TOLERANCE ; GAS-EXCHANGE ; PHYSIOLOGICAL ANALYSIS ; PROLINE ACCUMULATION ; BARLEY LEAVES ; HIGH LIGHT ; PLANTS ; RESPONSES
WOS Research AreaPlant Sciences
WOS IDWOS:000352617100001
Citation statistics
Cited Times:23[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/8631
Collection中科院海岸带环境过程与生态修复重点实验室
Corresponding AuthorYan, K (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Chunhui Rd 17, Yantai 264003, Peoples R China. kyan@yic.ac.cn
Affiliation1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China
3.Yantai Univ, Acad Life Sci, Yantai, Peoples R China
Recommended Citation
GB/T 7714
Yan, Kun,Wu, Congwen,Zhang, Lihua,et al. Contrasting photosynthesis and photoinhibition in tetraploid and its autodiploid honeysuckle (Lonicera japonica Thunb.) under salt stress[J]. FRONTIERS IN PLANT SCIENCE,2015,6:227.
APA Yan, Kun,Wu, Congwen,Zhang, Lihua,Chen, Xiaobing,&Yan, K .(2015).Contrasting photosynthesis and photoinhibition in tetraploid and its autodiploid honeysuckle (Lonicera japonica Thunb.) under salt stress.FRONTIERS IN PLANT SCIENCE,6,227.
MLA Yan, Kun,et al."Contrasting photosynthesis and photoinhibition in tetraploid and its autodiploid honeysuckle (Lonicera japonica Thunb.) under salt stress".FRONTIERS IN PLANT SCIENCE 6(2015):227.
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