Cell death in a harmful algal bloom causing species Alexandrium tamarense upon an algicidal bacterium induction
Cell death in a harmful algal bloom causing species Alexandrium tamarense upon an algicidal bacterium induction
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杀藻细菌诱导后,有害藻华中的细胞死亡导致塔玛亚历山大藻物种死亡
DOI:
10.1007/s00253-014-5886-1
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发表时间:
2014-06
影响因子:
5
通讯作者:
Zheng Tianling
中科院分区:
文献类型:
--
作者:
Zhang Huajun;Lv Jinglin;Peng Yun;Zhang Su;An Xinli;Xu Hong;Zhang Jun;Tian Yun;Zheng Wei;Zheng Tianling
Harmful algal blooms occur throughout the world, destroying aquatic ecosystems and threatening human health. The culture supernatant of the marine algicidal bacteria DHQ25 was able to lysis dinoflagellate Alexandrium tamarense. Loss of photosynthetic pigments, accompanied by a decline in Photosystem II (PSII) photochemical efficiency (Fv/Fm), in A. tamarense was detected under bacterial supernatant stress. Transmission electron microscope analysis showed obvious morphological modifications of chloroplast dismantling as a part of the algicidal process. The PSII electron transport chain was seriously blocked, with its reaction center damaged. This damage was detected in a relative transcriptional level of psbA and psbD genes, which encode the D1 and D2 proteins in the PSII reaction center. And the block in the electron transport chain of PSII might generate excessive reactive oxygen species (ROS) which could destroy the membrane system and pigment synthesis and activated enzymic antioxidant systems including superoxide dismutase (SOD) and catalase (CAT). This study indicated that marine bacteria with indirect algicidal activity played an important role in the changes of photosynthetic process in a harmful algal bloom species.
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DOI:
10.1073/pnas.96.14.8007
发表时间:
1999-07
影响因子:
11.1
作者:
M. Warner;W. Fitt;G. Schmidt
通讯作者:
M. Warner;W. Fitt;G. Schmidt
影响因子:
4.5
作者:
Lesser, MP
通讯作者:
Lesser, MP
DOI:
--
发表时间:
--
期刊:
--
影响因子:
--
作者:
K. Livak;Thomas D. Schmittgen
通讯作者:
K. Livak;Thomas D. Schmittgen
影响因子:
2.2
作者:
Amaro, AM;Fuentes, MS;Suárez-Isla, BA
通讯作者:
Suárez-Isla, BA
影响因子:
2.2
作者:
Mayali, X;Azam, F
通讯作者:
Azam, F