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Fusarium solani Infection Depressed Photosystem Performance by Inducing Foliage Wilting in Apple Seedlings

文献类型：期刊论文

作者Yan, Kun; Han, Guangxuan; Ren, Chenggang; Zhao, Shijie; Wu, Xiaoqing; Bian, Tiantian
刊名FRONTIERS IN PLANT SCIENCE
出版日期2018-05-07
卷号9页码:479
关键词photosynthetic electron transport photosystems interaction plastoquinone soil-borne pathogen water deficit
ISSN号1664-462X
DOI10.3389/fpls.2018.00479
产权排序[Yan, Kun ; Han, Guangxuan ; Bian, Tiantian] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Peoples R China ; [Ren, Chenggang] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Bioresource Utilizat, Yantai, Peoples R China ; [Zhao, Shijie] Shandong Agr Univ, State Key Lab Crop Biol, Tai An, Shandong, Peoples R China ; [Wu, Xiaoqing] Shandong Acad Sci, Ecol Inst, Shandong Prov Key Lab Appl Microbiol, Jinan, Shandong, Peoples R China ; [Bian, Tiantian] Ludong Univ, Sch Life Sci, Yantai, Peoples R China
文献子类Article
英文摘要Fusarium fungi are soil-borne pathogens, and the pathological effects on plant photosystems remain unclear. This study aimed to deeply reveal pathological characterization in apple seedlings infected with Fusarium solani by investigating photosystems performance and interaction. Roots were immersed in conidial suspension for inoculation. Thereafter, prompt and delayed chlorophyll a fluorescence and modulated 820 nm reflection were simultaneously detected. After 30 days of infection, leaf relative water content and dry weight were remarkably decreased by 55.7 and 47.1%, suggesting that the infected seedlings were subjected to Fusarium-induced water deficit stress. PSI reaction center was more susceptible than PSII reaction center in infected seedlings due to greater decrease in the maximal photochemical efficiency of PSI than that of PSII, but PSI reaction center injury was aggravated slowly, as PSII injury could partly protect PSI by restricting electron donation. PSII donor and acceptor sides were also damaged after 20 days of infection, and the restricted electron donation induced PSII and PSI disconnection by blocking PSI re-reduction. In accordance with greater damage of PSI reaction center, PSI oxidation was also suppressed. Notably, significantly increased efficiency of electron transport from plastoquinone (PQ) to PSI acceptors (REo/ETo) after 20 days of infection suggested greater inhibition on PQ reduction than re-oxidation, and the protection for PSI acceptors might alleviate the reduction of electron transport efficiency beyond PQ upon damaged PSI reaction center. Lowered delayed fluorescence in microsecond domain verified PSII damage in infected seedlings, and elevated delayed fluorescence in sub-millisecond domain during PQ reduction process conformed to increased REo/ETo. In conclusion, F. solani infection depressed PSII and PSI performance and destroyed their coordination by inducing pathological wilting in apple seedlings. It may be a pathogenic mechanism of Fusarium to induce plant photosystems damage.
WOS关键词CHLOROPHYLL-A FLUORESCENCE ; PHOTOSYNTHETIC ELECTRON-TRANSPORT ; 820 NM REFLECTION ; SALT STRESS ; DELAYED FLUORESCENCE ; REPLANT CONDITIONS ; DROUGHT STRESS ; WHEAT LEAVES ; PEA LEAVES ; RISE OJIP
WOS研究方向Plant Sciences
语种英语
WOS记录号WOS:000431476200001
资助机构Shandong Provincial Natural Science Foundation, China [ZR2017QC005] ; Yantai Science and Technology Planning Project [2015ZH069, 2016ZH074] ; Key Deployment Project of Chinese Academy of Sciences [KFZD-SW-112] ; Science and Technology Service Network Initiative [KFJ-STS-ZDTP-023] ; Opening Foundation of the State Key Laboratory of Crop Biology, Shandong Agricultural University [2016KF07] ; Shenyang Branch of Chinese Academy of Sciences ; Shandong Academy of Sciences
源URL[http://ir.yic.ac.cn/handle/133337/24464]  
专题烟台海岸带研究所_近岸生态与环境实验室
烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位1.Ludong Univ, Sch Life Sci, Yantai, Peoples R China
2.Shandong Acad Sci, Ecol Inst, Shandong Prov Key Lab Appl Microbiol, Jinan, Shandong, Peoples R China;
3.Shandong Agr Univ, State Key Lab Crop Biol, Tai An, Shandong, Peoples R China;
4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Bioresource Utilizat, Yantai, Peoples R China;
5.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Peoples R China;
推荐引用方式
GB/T 7714		 Yan, Kun,Han, Guangxuan,Ren, Chenggang,et al. Fusarium solani Infection Depressed Photosystem Performance by Inducing Foliage Wilting in Apple Seedlings[J]. FRONTIERS IN PLANT SCIENCE,2018,9:479.
APA Yan, Kun,Han, Guangxuan,Ren, Chenggang,Zhao, Shijie,Wu, Xiaoqing,&Bian, Tiantian.(2018).Fusarium solani Infection Depressed Photosystem Performance by Inducing Foliage Wilting in Apple Seedlings.FRONTIERS IN PLANT SCIENCE,9,479.
MLA Yan, Kun,et al."Fusarium solani Infection Depressed Photosystem Performance by Inducing Foliage Wilting in Apple Seedlings".FRONTIERS IN PLANT SCIENCE 9(2018):479.

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来源：烟台海岸带研究所

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