Production of acyl-homoserine lactone quorum-sensing signals is widespread in gram-negative Methylobacterium.

Production of acyl-homoserine lactone quorum-sensing signals is widespread in gram-negative Methylobacterium. Research Abstract Details 

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Production of acyl-homoserine lactone quorum-sensing signals is widespread in gram-negative Methylobacterium. Abstract Text:

Selvaraj Poonguzhali,Munusamy Madhaiyan,Tongmin Sa,Selvaraj Poonguzhali,Munusamy Madhaiyan,Tongmin Sa,

Members of Methylobacterium, referred as pink-pigmented facultative methylotrophic bacteria, are frequently associated with terrestrial and aquatic plants, tending to form aggregates on the phyllosphere. We report here that the production of autoinducer molecules involved in the cell-to-cell signaling process, which is known as quorum sensing, is common among Methylobacterium species. Several strains of Methylobacterium were tested for their ability to produce N-acyl-homoserine lactone (AHL) signal molecules using different indicators. Most strains of Methylobacterium tested could elicit a positive response in Agrobacterium tumefaciens harboring lacZ fused to a gene that is regulated by autoinduction. The synthesis of these compounds was cell-density dependent, and the maximal activity was reached during the late exponential to stationary phases. The bacterial extracts were separated by thin-layer chromatography and bioassayed with A. tumefaciens NT1 (traR, tra::lacZ749). They revealed the production of various patterns of the signal molecules, which are strain dependent. At least two signal molecules could be detected in most of the strains tested, and comparison of their relative mobilities suggested that they are homologs of N-octanoyl-DL-homoserine lactone (C8-HSL) and N-decanoyl-DL-homoserine lactone (C10-HSL).

Production of acyl-homoserine lactone quorum-sensing signals is widespread in gram-negative Methylobacterium. Publishing Authors By Initials

S Poonguzhali,M Madhaiyan,T Sa,S Poonguzhali,M Madhaiyan,T Sa,

For similar biological phenomena, cell phenomena, and immunity: cell physiology: cell communication: quorum sensing research abstracts see: biological phenomena, cell phenomena, and immunity: cell physiology: cell communication: quorum sensing research

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Production of acyl-homoserine lactone quorum-sensing signals is widespread in gram-negative Methylobacterium. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of microbiology and biotechnology

VOLUME: 17

Page Numbers: 226-33

Journal Abbreviation: J. Microbiol. Biotechnol.

ISSN: 1017-7825

DAY: 3

MONTH: Feb

YEAR: 2007

Production of acyl-homoserine lactone quorum-sensing signals is widespread in gram-negative Methylobacterium. Information

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LANGUAGE: eng

NlmUniqueID: 9431852

Production of acyl-homoserine lactone quorum-sensing signals is widespread in gram-negative Methylobacterium. Keywords Mesh Terms:

KEYWORDS: Quorum Sensing

MESH TERMS: physiology

Chemical & Substance for Abstract: Production of acyl-homoserine lactone quorum-sensing signals is widespread in gram-negative Methylobacterium. Information

Substance Name: Acyl-Butyrolactones

Registry Number: 0

Grant and Affiliation Information for Production of acyl-homoserine lactone quorum-sensing signals is widespread in gram-negative Methylobacterium.

AFFILIATION: Department Agricultural Chemistry, Chungbuk National University, Cheongfu, Chungbuk 361-763, Korea.

Country: Korea (South)

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MEDLINETA: J Microbiol Biotechnol

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