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    Environmental regulation of reproductive phase change in Agaricus bisporus by 1-octen-3-ol, temperature and CO2

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    Authors
    Eastwood, Daniel C.
    Herman, Bram
    Noble, Ralph
    Dobrovin-Pennington, Andreja
    Sreenivasaprasad, Surapareddy
    Burton, Kerry S.
    Affiliation
    University of Swansea
    University of Warwick
    East Malling Research
    University of Bedfordshire
    Agilent Technologies UK Ltd.
    Issue Date
    2013
    Subjects
    Agaricus bisporus
    reproductive phase change
    microarray
    fruiting regulation
    cultivated mushroom
    
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    Abstract
    Reproductive phase change from vegetative mycelium to the initiation of fruiting in Agaricus bisporus is regulated in large part by the sensing of environmental conditions. A model is proposed in which three separate environmental factors exert control at different stages of the reproductive developmental process change. The eight carbon volatile 1-octen-3-ol controls the early differentiation from vegetative hyphae to multicellular knots; temperature reduction is essential for the later differentiation of primodia; and carbon dioxide level exerts quantitative control on the number of fruiting bodies developed. Analysis of transcriptomic changes during the reproductive phase change was carried out with initiation-specific microarrays, and the newly published A. bisporus genome was used to analyse the promoter regions of differentially regulated genes. Our studies have shown there to be both early and late initiation responses relating to sensing of eight carbon volatiles and temperature respectively. A subset of 45 genes was transcriptionally regulated during the reproductive phase change which exhibited a range of functions including cell structure, nitrogen and carbon metabolism, and sensing and signalling. Three gene clusters linking increased transcription with developmental stage were identified. Analysis of promoter regions revealed cluster-specific conserved motifs indicative of co-ordinated regulation of transcription
    Citation
    Eastwood, D.C., Herman, B., Noble, R., Dobrovin-Pennington, A., Sreenivasaprasad, S. and Burton, K.S. (2013) 'Environmental regulation of reproductive phase change in Agaricus bisporus by 1-octen-3-ol, temperature and CO2', Fungal Genetics and Biology, 55,pp.54-66
    Publisher
    Elsevier
    Journal
    Fungal Genetics and Biology
    URI
    http://hdl.handle.net/10547/302167
    DOI
    10.1016/j.fgb.2013.01.001
    Additional Links
    http://linkinghub.elsevier.com/retrieve/pii/S1087184513000030
    Type
    Article
    Language
    en
    ISSN
    10871845
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.fgb.2013.01.001
    Scopus Count
    Collections
    Environmental Monitoring Research Group

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