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菌群条件下铜绿微囊藻休眠体复苏期间光合效率变化
引用本文:邹万生,王智,宋齐生,罗玉双,王文彬,彭保发,杨品红.菌群条件下铜绿微囊藻休眠体复苏期间光合效率变化[J].环境科学学报,2018,38(10):4090-4102.
作者姓名:邹万生  王智  宋齐生  罗玉双  王文彬  彭保发  杨品红
作者单位:湖南文理学院水产高校健康生产湖南省协同创新中心洞庭湖生态经济区建设与发展湖南省协同创新中心动物学湖南省高校重点实验室;Division
基金项目:湖南省自然科学基金(No.2016JJ2090);国家自然科学基金(No.31472017,31572619)
摘    要:将3株冲天湖底泥优势菌(Exiguobacterium.sp013、Bacillus.spD06与Bacillus.spD24)按不同配比与铜绿微囊藻休眠体用底泥包埋,在梯度温度下(10、15、20和25℃)进行复苏模拟实验.结果表明,在15、20和25℃条件下,菌组和无菌组铜绿微囊藻休眠体均能从底泥复苏进入上覆水体,但菌组复苏率显著高于无菌组(p0.05).在10℃条件下,菌组铜绿微囊藻休眠体能复苏,而无菌组不能.在20和25℃时,菌组对铜绿微囊藻休眠体光合系统的光合效率F_v/F_m无显著提升作用(p 0.05),而在10和15℃时,菌组能显著提升铜绿微囊藻休眠体的光合效率F_v/F_m(p0.05),且菌组Mix-4的提升能力显著强于其他菌组和无菌组.基因测序和KEGG富集分析发现,15℃时菌组Mix-4差异表达的基因显著富集于Cell cycle通路中,包括氧化磷酸化(ATP生成反应)通路和内质网蛋白合成通路,同时与光合作用相关的蛋白基因psaB、psbA及rbcL的表达量均发生显著上调,这可能是Mix-4菌群在较低温度下(15℃)提升铜绿微囊藻休眠体光合效率F_v/F_m并促进其复苏的分子机理.

关 键 词:底泥菌群  铜绿微囊藻  休眠体  复苏  光合效率
收稿时间:2018/5/2 0:00:00
修稿时间:2018/7/3 0:00:00

Photosynthetic efficiency of dormant Microcystis aeruginosa during the recruitment under bacterial flora conditions
ZOU Wansheng,WANG Zhi,SONG Qisheng,LUO Yushuang,WANG Wenbin,PENG Baofa and YANG Pinhong.Photosynthetic efficiency of dormant Microcystis aeruginosa during the recruitment under bacterial flora conditions[J].Acta Scientiae Circumstantiae,2018,38(10):4090-4102.
Authors:ZOU Wansheng  WANG Zhi  SONG Qisheng  LUO Yushuang  WANG Wenbin  PENG Baofa and YANG Pinhong
Institution:1. Hunan University of Arts and Science, Collaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province, Hunan Province Cooperative Innovation Center for the Construction and Development of Dongting Lake Ecological Economic Zone, Zoology Key Laboratory of Hunan Higher Education, Changde 415000;2. Division of Plant Sciences, University of Missouri, Columbia, MO 65211, USA,School of Life Science, Hunan Normal University, Changsha 410000,Division of Plant Sciences, University of Missouri, Columbia, MO65211, USA,Hunan University of Arts and Science, Collaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province, Hunan Province Cooperative Innovation Center for the Construction and Development of Dongting Lake Ecological Economic Zone, Zoology Key Laboratory of Hunan Higher Education, Changde 415000,Hunan University of Arts and Science, Collaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province, Hunan Province Cooperative Innovation Center for the Construction and Development of Dongting Lake Ecological Economic Zone, Zoology Key Laboratory of Hunan Higher Education, Changde 415000,Hunan University of Arts and Science, Collaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province, Hunan Province Cooperative Innovation Center for the Construction and Development of Dongting Lake Ecological Economic Zone, Zoology Key Laboratory of Hunan Higher Education, Changde 415000 and Hunan University of Arts and Science, Collaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province, Hunan Province Cooperative Innovation Center for the Construction and Development of Dongting Lake Ecological Economic Zone, Zoology Key Laboratory of Hunan Higher Education, Changde 415000
Abstract:
Keywords:benthic bacteria  Microcystis aeruginosa  dormancy  recruitment  photosynthetic efficiency
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