| Title: | Induction of conidiation by endogenous volatile compounds in Trichoderma spp |
| Author(s): | Nemcovic M; Jakubikova L; Viden I; Farkas V; |
| Address: | "Institute of Chemistry, Slovak Academy of Sciences, Bratislava, Slovakia" |
| DOI: | 10.1111/j.1574-6968.2008.01202.x |
| ISSN/ISBN: | 0378-1097 (Print) 0378-1097 (Linking) |
| Abstract: | "Light and starvation are two principal environmental stimuli inducing conidiation in the soil micromycete Trichoderma spp. We observed that volatiles produced by conidiating colonies of Trichoderma spp. elicited conidiation in colonies that had not been induced previously by exposure to light. The inducing effect of volatiles was both intra- and interspecific. Chemical profiles of the volatile organic compounds (VOCs) produced by the nonconidiated colonies grown in the dark and by the conidiating colonies were compared using solid-phase microextraction of headspace samples followed by tandem GC-MS. The conidiation was accompanied by increased production of eight-carbon compounds 1-octen-3-ol and its analogs 3-octanol and 3-octanone. When vapors of these compounds were applied individually to dark-grown colonies, they elicited their conidiation already at submicromolar concentrations. It is concluded that the eight-carbon VOCs act as signaling molecules regulating development and mediating intercolony communication in Trichoderma" |
| Keywords: | "Chromatography, Gas Darkness Ketones/*metabolism Octanols/*metabolism Spores, Fungal/*physiology Trichoderma/*metabolism/*physiology Volatilization;" |
| Notes: | "MedlineNemcovic, Marek Jakubikova, Lucia Viden, Ivan Farkas, Vladimir eng Research Support, Non-U.S. Gov't England 2008/05/31 FEMS Microbiol Lett. 2008 Jul; 284(2):231-6. doi: 10.1111/j.1574-6968.2008.01202.x. Epub 2008 May 28" |
