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journal1 ›› 2017, Vol. 33 ›› Issue (1): 103-113.DOI: 10.16409/j.cnki.2095-039x.2017.01.015

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Transcriptome Analysis of Trichoderma harzianum Th-33 under Copper Stress

WANG Lirong, JIANG Xiliang, ESTIFANOS Tsegaye, DING Jie, MA Jing, CHEN Xiaoli, LI Xinyue, LI Mei   

  1. Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture/Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100081, China
  • Received:2016-05-24 Online:2017-02-08 Published:2017-01-24

Abstract: The transcripts of Trichoderma harzianum Th-33 under copper stress and normal conditions were sequenced on a Hiseq2500 instrument. A total of 891 differentially expressed genes (DEGs) were found between the two transcripts, of which 570 genes were up-regulated and 321 genes were down-regulated in expression. GO analysis suggested that total of 438 differentially expressed genes were categorized into 673 functional groups. KEGG analysis revealed that total of 254 genes were annotated in 167 individual pathways and these unigenes were significantly enriched in various known aminobenzoate degradation and chloroalkane degradation. According to the differentially expressed genes and metabolic pathways of T. harzianum Th-33 under copper stress, the copper transport and metabolism pattern in T. harzianum Th-33 were different from that of yeast and T. reesei. Pathways of reducing of copper ions and Ctr transporting were inhibited by copper stress, and part of copper may enter T. harzianum Th-33 cells by endocytosis. It was speculated that copper transferred in T. harzianum Th-33 by combining with glutathione, or transported to the plasma membrane by P-type ATPase.

Key words: copper stress, transcriptome sequencing, Trichoderma harzianum, response

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