| Title: | The Trichoderma atroviride Strains P1 and IMI 206040 Differ in Their Light-Response and VOC Production |
| Author(s): | Speckbacher V; Ruzsanyi V; Wigger M; Zeilinger S; |
| Address: | "Department of Microbiology, University of Innsbruck, 6020 Innsbruck, Austria. Breath Research Institute, University of Innsbruck, 6850 Dornbirn, Austria. Umweltmonitoring und Forensische Chemie, Hochschule Hamm-Lippstadt, 59063 Hamm, Germany" |
| DOI: | 10.3390/molecules25010208 |
| ISSN/ISBN: | 1420-3049 (Electronic) 1420-3049 (Linking) |
| Abstract: | "Trichoderma atroviride is a strong necrotrophic mycoparasite antagonizing and feeding on a broad range of fungal phytopathogens. It further beneficially acts on plants by enhancing growth in root and shoot and inducing systemic resistance. Volatile organic compounds (VOCs) are playing a major role in all those processes. Light is an important modulator of secondary metabolite biosynthesis, but its influence has often been neglected in research on fungal volatiles. To date, T. atroviride IMI 206040 and T. atroviride P1 are among the most frequently studied T. atroviride strains and hence are used as model organisms to study mycoparasitism and photoconidiation. However, there are no studies available, which systematically and comparatively analyzed putative differences between these strains regarding their light-dependent behavior and VOC biosynthesis. We therefore explored the influence of light on conidiation and the mycoparasitic interaction as well as the light-dependent production of VOCs in both strains. Our data show that in contrast to T. atroviride IMI 206040 conidiation in strain P1 is independent of light. Furthermore, significant strain- and light-dependent differences in the production of several VOCs between the two strains became evident, indicating that T. atroviride P1 could be a better candidate for plant protection than IMI 206040" |
| Keywords: | "Gene Expression Regulation, Fungal *Light Species Specificity Trichoderma/*metabolism Volatile Organic Compounds/*metabolism 2-octanone Fusarium oxysporum Trichoderma atroviride fungi injury response light response mycoparasitism photoconidiation secondar;" |
| Notes: | "MedlineSpeckbacher, Verena Ruzsanyi, Veronika Wigger, Modestus Zeilinger, Susanne eng Switzerland 2020/01/18 Molecules. 2020 Jan 3; 25(1):208. doi: 10.3390/molecules25010208" |
