4篇
您的检索式：作者名="Barbara Reithner"
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | The G protein ct-subunit Tgal of Trichoderma atroviride is involved in chitinase formation and differential production of antifungal metabolites显示文摘 | Barbara Reithner Kurt Brunner Rainer Schuhmacher | 2005 | Fungal Genetics and Biology2005，，42： | 1 |
| 2 | Signal Transduction by Tga3, a Novel G Protein a-Subunit of Tnchoderma atroviride显示文摘 | Susanne Zeilinger Barbara Reithner Valeria Scala | 2005 | Applied and Environmental Microbiology2005，，3： | 1 |
| 3 | Signaling via the Trichodenna atroviride mitogen-activated protein kinase Tmkl differentially affects mycoparasitism and plant protection显示文摘 | Barbara Reithner Rainer Schuhmacher Norbert Stoppacher | | 0，，： | 1 |
| 4 | G protein signalling involved in host recognition and mycoparasitism-related chitinase expression in Trichoderma atroviride显示文摘Mycoparasitic species of Trichoderma are commercially applied as biological control agents against various fungal pathogens. The mycoparasitic interaction is host specific and includes recognition, attack and subsequent penetration and killing of the host. Investigations on the underlying events revealed that Trichoderma responds to multiple signals from the host (e.g. lectins or other ligands such as low molecular weight components released from the host’s cell wall) and host attack is accompanied by morphological changes and the secretion of hydrolytic enzymes and antibiotics. Degradation of the cell wall of the host fungus is-besides glucanases and proteases-mainly achieved by chitinases. In vivo studies showed that the ech42 gene (encoding endochitinase 42) is expressed before physical contact of Trichoderma with its host, probably representing one of the earliest events in mycoparasitism, whereas Nag1 (N-acetylglucosaminidase) plays a key role in the general induction of the chitinolytic enzyme system of T. atroviride . Investigations on the responsible signal transduction pathways of T. atroviride led to the isolation of several genes encoding key components of the cAMP and MAP kinase signaling pathways, as alpha and β subunits of heterotrimeric G proteins, the regulatory subunit of cAMP-dependent protein kinase, adenylate cyclase, and three MAP kinases. Analysis of knockout mutants, generated by Agrobacterium-mediated transformation, revealed that at least two alpha-subunits of heterotrimeric G proteins are participating in mycoparasitism-related signal transduction. The Tga1 G alpha subunit was shown to be involved in mycoparasitism-related processes such as chitinase expression and overproduction of toxic secondary metabolites, whereas Tga3 was found to be completely avirulent showing defects in chitinase formation and host recognition. | Susanne Zeilinger Barbara Reithner Kurt Brunner Valeria Scala Isabel Peiβl Matteo Lorito Robert L Mach | 2004 | 浙江大学学报(农业与生命科学版)2004，30，4： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员