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dc.contributor.authorZhang, Zilianzh_CN
dc.contributor.authorLi, Zhipengzh_CN
dc.contributor.authorJiao, Nianzhizh_CN
dc.contributor.author焦念志zh_CN
dc.date.accessioned2015-07-22T03:12:34Z
dc.date.available2015-07-22T03:12:34Z
dc.date.issued2014 JUNzh_CN
dc.identifier.citationCURRENT MICROBIOLOGY, 2014,68(6):751-755zh_CN
dc.identifier.otherWOS:000334267700011zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/88128
dc.descriptionNational Key Basic Research Program of China [2013CB955700]; NSFC project [91028001]; SOA project [201105021]zh_CN
dc.description.abstractExopolysaccharide (EPS) is produced by many marine bacteria and is important for cell aggregation in the ocean. d-amino acids are important components in bacteria and are recently recognized as signal molecules for regulation of bacterial growth. In this study, the effects of d-amino acids on EPS production, cell aggregation, and metabolic activity were investigated using an EPS-producing bacterium Alteromonas macleodii strain JL2069. EPS produced by JL2069 was inhibited by 1 mM of d-Ala and d-Ser, but not by d-Glu. The formation of particulate organic matter (POM) was promoted by the three amino acids. A new technique of microcalorimetry analysis indicated that the metabolic activity of the JL2069 cells was inhibited by these d-amino acids. Our results suggested that d-amino acids may reduce the bacterial metabolism by changing bacterial lifestyle from planktonic to cell aggregation growth which occurs independent of the production of EPS.zh_CN
dc.language.isoen_USzh_CN
dc.publisherSPRINGERzh_CN
dc.source.urihttp://dx.doi.org/10.1007/s00284-014-0520-0zh_CN
dc.subjectSEA HYDROTHERMAL VENTzh_CN
dc.subjectEXTRACELLULAR POLYMERIC SUBSTANCESzh_CN
dc.subjectORGANIC-MATTERzh_CN
dc.subjectWALLzh_CN
dc.subjectPOLYSACCHARIDEzh_CN
dc.subjectBACTERIUMzh_CN
dc.titleEffects of d-Amino Acids on the EPS Production and Cell Aggregation of Alteromonas macleodii Strain JL2069zh_CN
dc.typeArticlezh_CN


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