Document Detail

Aerial hyphae in surface cultures of Streptomyces lividans and Streptomyces coelicolor originate from viable segments surviving an early programmed cell death event.
MedLine Citation:
PMID:  17663705     Owner:  NLM     Status:  MEDLINE    
Morphogenesis in streptomycetes is characterized by the formation of aerial hyphae that emerge from the substrate mycelium. Despite many years of study, a detailed picture of the events that occur during the transition from substrate to aerial mycelium has yet to be defined. In this paper, it was shown that a specific cell death event takes place during early growth of the substrate mycelium in Streptomyces coelicolor and Streptomyces lividans. Subsequently, a second mycelium starts to develop from the remaining viable segments of these substrate hyphae in the form of islands, which progressively cover the plate surface. Interestingly, the genes coding for the chaplin and rodlin proteins, which are involved in the formation of the hydrophobic layer characteristic of aerial structures, are specifically expressed in the second mycelium islands, strongly suggesting that this second mycelium should be considered the early precursor of the mature hydrophobic aerial mycelium.
Angel Manteca; Dennis Claessen; Carmen Lopez-Iglesias; Jesus Sanchez
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  FEMS microbiology letters     Volume:  274     ISSN:  0378-1097     ISO Abbreviation:  FEMS Microbiol. Lett.     Publication Date:  2007 Sep 
Date Detail:
Created Date:  2007-07-31     Completed Date:  2007-09-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7705721     Medline TA:  FEMS Microbiol Lett     Country:  England    
Other Details:
Languages:  eng     Pagination:  118-25     Citation Subset:  IM    
Departamento de Biologia Funcional e Instituto de Biotecnologia de Asturias (IUBA), Universidad de Oviedo, Oviedo, Spain.
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MeSH Terms
Bacterial Proteins / analysis,  genetics,  metabolism
Gene Expression
Green Fluorescent Proteins / analysis
Spores, Bacterial / growth & development
Streptomyces coelicolor / cytology,  growth & development*,  physiology
Streptomyces lividans / cytology,  growth & development*,  physiology
Reg. No./Substance:
0/Bacterial Proteins; 147336-22-9/Green Fluorescent Proteins

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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