title: Cloning, annotation and expression analysis of mycoparasitism-related genes in Trichoderma harzianum 88.
abstract: Trichoderma harzianum 88, a filamentous soil fungus, is an effective biocontrol agent against several plant pathogens. High-throughput sequencing was used here to study the mycoparasitism mechanisms of T. harzianum 88. Plate confrontation tests of T. harzianum 88 against plant pathogens were conducted, and a cDNA library was constructed from T. harzianum 88 mycelia in the presence of plant pathogen cell walls. Randomly selected transcripts from the cDNA library were compared with eukaryotic plant and fungal genomes. Of the 1,386 transcripts sequenced, the most abundant Gene Ontology (GO) classification group was "physiological process". Differential expression of 19 genes was confirmed by real-time RT-PCR at different mycoparasitism stages against plant pathogens. Gene expression analysis revealed the transcription of various genes involved in mycoparasitism of T. harzianum 88. Our study provides helpful insights into the mechanisms of T. harzianum 88-plant pathogen interactions.
authors.affiliation: Department of Life Science and Engineering, Institute of Technology, Harbin 150001, P. R. China.
authors.forename: Lin
authors.initials: L
authors.lastname: Yao
authors.forename: Qian
authors.initials: Q
authors.lastname: Yang
authors.forename: Jinzhu
authors.initials: J
authors.lastname: Song
authors.forename: Chong
authors.initials: C
authors.lastname: Tan
authors.forename: Changhong
authors.initials: C
authors.lastname: Guo
authors.forename: Li
authors.initials: L
authors.lastname: Wang
authors.forename: Lianhai
authors.initials: L
authors.lastname: Qu
authors.forename: Yun
authors.initials: Y
authors.lastname: Wang
mesh_terms: D000898:Antibiosis; D001203:Ascomycota / Q000502:physiology; D003001:Cloning, Molecular; D020224:Expressed Sequence Tags; D005656:Fungal Proteins / Q000235:genetics* / Q000378:metabolism; D005670:Fusarium / Q000502:physiology; D015966:Gene Expression Regulation, Fungal; D058977:Molecular Sequence Annotation; D025282:Mycelium / Q000235:genetics / Q000254:growth & development / Q000378:metabolism; D010935:Plant Diseases / Q000382:microbiology; D012232:Rhizoctonia / Q000502:physiology; D014242:Trichoderma / Q000235:genetics* / Q000502:physiology
chemical_list: D005656:Fungal Proteins