Influence of a Bacteriophage on the Population Dynamics of Toxic Dinoflagellates by Lysis of Algicidal Bacteria

Author:

Cai Wenwei1,Wang Hui1,Tian Yun1,Chen Feng12,Zheng Tianling1

Affiliation:

1. State Key Laboratory of Marine Environmental Sciences and Key Laboratory of the Ministry of Education for Coast and Wetland Ecosystem, Xiamen University, Xiamen, Fujian 361005, China

2. Institute of Marine and Environmental Technology, University of Maryland Center for Environmental Science, Baltimore, Maryland 21202

Abstract

ABSTRACT A lytic phage (øZCW1) was isolated from an algicidal bacterium Pseudoalteromonas sp. strain SP48 that specifically kills the toxic dinoflagellate Alexandrium tamarense . We demonstrated that øZCW1 could trigger the growth of A. tamarense by inhibiting the growth of algicidal bacterium SP48. In contrast, the growth of A. tamarense was suppressed when cocultured with either SP48 or the øZCW1-resistant mutant of SP48. This study provides the first evidence of the indirect impact of bacteriophage on bloom-forming microalgae via phage lysis of alga-killing bacteria.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Reference33 articles.

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