文献类型：期刊文献

英文题名：Genome and transcriptome sequencing of Trichoderma harzianum T4, an important biocontrol fungus of Rhizoctonia solani, reveals genes related to mycoparasitism

作者：Wang, Yaping[1];Wang, Jian[1];Zhu, Xiaochong[1];Wang, Wei[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai, Peoples R China

年份：2024

卷号：70

期号：3

起止页码：86

外文期刊名：CANADIAN JOURNAL OF MICROBIOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001156888300001)】；

基金：Funding information This work was supported by the Project of Prospering Agri-culture through Science and Technology of Shanghai, China (grant number 2022-02-08-00-12-F01163) .

语种：英文

外文关键词：Trichoderma harzianum T4; Rhizoctonia solani; mycoparasitism; biological control; genome; transcriptome

摘要：Trichoderma harzianum is a well-known biological control strain and a mycoparasite of Rhizoctonia solani. To explore the mechanisms of mycoparasitism, the genome and transcriptome of T. harzianum T4 were both assembled and analyzed in this study. The genome of T. harzianum T4 was assembled into 106 scaffolds, sized 41.25 Mb, and annotated with a total of 8118 predicted genes. We analyzed the transcriptome of T. harzianum T4 against R. solani in a dual culture in three culture periods: before contact (BC), during contact (C), and after contact (AC). Transcriptome sequencing identified 1092, 1222, and 2046 differentially expressed genes (DEGs), respectively. These DEGs, which are involved in pathogen recognition and signal transduction, hydrolase, transporters, antibiosis, and defense-related functional genes, are significantly upregulated in the mycoparasitism process. The results of genome and transcriptome analysis indicated that the mycoparasitism process of T. harzianum T4 was very complex. T. harzianum successfully recognizes and invades host cells and kills plant pathogens by regulating various DEGs at different culture periods. The relative expression levels of the 26 upregulated DEGs were confirmed by RT-qPCR to validate the reliability of the transcriptome data. The results provide insight into the molecular mechanisms underlying T. harzianum T4's mycoparasitic processes, and they provide a potential molecular target for the biological control mechanism of T. harzianum T4.