Response of microbial community to the lysis of Phaeocystis globosa induced by a biological algicide, prodigiosin.
Response of microbial community to the lysis of Phaeocystis globosa induced by a biological algicide, prodigiosin.
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DOI：
10.1016/j.envpol.2020.115047
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发表时间：
2020-06
影响因子：
8.9
通讯作者：
Huajun Zhang;Weijuan Xie;Fanrong Hou;Jian Hu;Z. Yao;Qunfen Zhao;Demin Zhang
中科院分区：
文献类型：
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作者：
Huajun Zhang;Weijuan Xie;Fanrong Hou;Jian Hu;Z. Yao;Qunfen Zhao;Demin Zhang
使用杀藻剂终止有害藻华是海洋环境中的强扰动事件，对微生物生态系统具有强大的结构性影响。但是，微生物生态系统对杀藻剂的反应很大程度上未知。在这里，我们利用 16S rRNA 基因扩增子测序，对球形微囊藻进行了研究，以研究微生物群落响应高效杀藻剂灵菌红诱导的杀藻过程的动力学、组装过程和共生模式。 P. 杀藻过程中微生物群落的α多样性没有表现出明显的变化。 灵菌红处理的球形微球（PD组）。在PD的杀藻过程中，红杆菌科显着增加（P<0.05），这主要是由于P的裂解所致。 球状细胞。与对照组相比，由于P的裂解，PD中常见和稀有类群的时间周转率显着更高。 由灵菌红诱导的球形。中性过程主要驱动所有微观世界中微生物群落的组装，尽管灵菌红诱导的杀藻过程对组装过程没有影响。此外，时间衰减关系和共现网络分析表明，稀有类群在应对杀藻过程中维持微生物群落稳定性方面发挥着重要作用，而不是灵菌红。这些发现表明灵菌红不能直接影响微生物群落的动态；然而，未来对微生物群落对灵菌红的反应功能的研究仍然势在必行。
Terminating harmful algal blooms by using algicidal agents is a strong disturbance event in marine environment, which has powerful structural influences on microbial ecosystems. But, the response of microbial ecosystem to algicidal agent is largely unknown. Here, we conductedPhaeocystis globosamicrocosms to investigate the dynamics, assembly processes, and co-occurrence patterns of microbial communities in response to algicidal process induced by a highly efficient algicidal agent, prodigiosin, by using 16S rRNA gene amplicon sequencing. The α-diversity of microbial community showed no obvious changes during the algicidal process inP. globosamicrocosm treated with prodigiosin (group PD).Rhodobacteraceaeincreased significantly (P< 0.05) during algicidal process in PD, and this was mainly due to the lysis ofP. globosacells. Compared to the control group, the temporal turnover rates of common and rare taxa in PD were significantly higher because of the lysis ofP. globosainduced by prodigiosin. Neutral processes mainly drove the assembly of microbial communities in all microcosms, even though the algicidal process induced by prodigiosin had no effect on the assembly processes. In addition, the time-decay relationship and co-occurrence network analysis indicate that rare taxa play important roles in maintaining microbial community stability in response to the algicidal process, rather than prodigiosin. These findings suggest that prodigiosin cannot affect the dynamics of microbial communities directly; however, future investigations into the function of microbial communities in response to prodigiosin remain imperative.