Document Detail


Bioluminescence characteristics of a tropical terrestrial fungus (Basidiomycetes).
MedLine Citation:
PMID:  17610297     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Freshly collected samples of luminous mycelium of a terrestrial fungus from Panama were investigated for their bioluminescence characteristics. Taxonomic identification of fungal species could not be determined because of the lack of fruiting bodies. Fluorescence excited by 380 nm illumination had an emission spectrum with a main peak at 480 nm and additional chlorophyll peaks related to the wood substrate. Bioluminescence appeared as a continuous glow that did not show any diel variation. The light production was sensitive to temperature and decreased with temperatures higher or lower than ambient. Bioluminescence intensity was sensitive to hydration, increasing by a factor of 400 immediately after exposure to water and increasing by a factor of 1 million after several hours. This increase may have occurred through dilution of superoxide dismutase, which is a suppressive factor of bioluminescence in fungus tissue. The mycelium typically transports nutritive substances back to the fruiting body. The function of luminescent mycelium may be to increase the intensity of light from the fungus and more effectively attract nocturnal insects and other animals that serve as disseminating vectors for fungal spores.
Authors:
Dimitri D Deheyn; Michael I Latz
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Luminescence : the journal of biological and chemical luminescence     Volume:  22     ISSN:  1522-7235     ISO Abbreviation:  Luminescence     Publication Date:    2007 Sep-Oct
Date Detail:
Created Date:  2007-10-02     Completed Date:  2007-12-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100889025     Medline TA:  Luminescence     Country:  England    
Other Details:
Languages:  eng     Pagination:  462-7     Citation Subset:  IM    
Copyright Information:
Copyright 2007 John Wiley & Sons, Ltd.
Affiliation:
Marine Biology Research Division, Scripps Institution of Oceanography, University of California at San Diego, La Jolla, CA 92093-0202, USA. ddeheyn@ucsd.edu
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MeSH Terms
Descriptor/Qualifier:
Basidiomycota / chemistry*,  metabolism
Chemiluminescent Measurements
Luminescence*
Sensitivity and Specificity
Species Specificity
Spectrometry, Fluorescence / methods
Temperature
Time Factors
Water / analysis,  metabolism
Chemical
Reg. No./Substance:
7732-18-5/Water

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


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