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铜胁迫下的哈茨木霉Th-33转录组分析
  • ISSN号:2095-039X
  • 期刊名称:《中国生物防治学报》
  • 时间:0
  • 分类:S476[农业科学—农业昆虫与害虫防治;农业科学—植物保护]
  • 作者机构:中国农业科学院植物保护研究所/农业部作物有害生物综合治理重点实验室,北京100081
  • 相关基金:国家自然科学基金(31371983)
中文摘要:

采用Hiseq2500高通量测序平台完成了铜胁迫和对照条件下哈茨木霉Th-33的转录组测序,共检测出差异表达基因891条,其中上调表达基因570条,下调表达基因321条。GO富集分析显示,共有438个差异表达基因参与到673个不同的功能亚类中;KEGG代谢途径分析显示,共有254个差异表达基因归到167个代谢通路中,其中涉及基因最多的是对氨基苯甲酸甲酯降解和氯烷烃、烯烷烃降解通路。通过对差异表达基因和代谢通路分析,推导出菌株Th-33细胞内可能的铜胁迫应答途径。铜胁迫下,Cu^2+还原为Cu^+、铜转运蛋白(copper transporter,Ctr)的转运途径受到抑制,铜离子可能一部分通过吞饮的作用进入哈茨木霉Th-33细胞,可能通过与谷胱甘肽(GST)结合,或通过P-type ATP酶的外排作用将铜离子向质膜外运输以减少对细胞的毒害作用。

英文摘要:

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.

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期刊信息
  • 《中国生物防治学报》
  • 中国科技核心期刊
  • 主管单位:中华人民共和国农业部
  • 主办单位:中国农业科学院植物保护研究所 中国植物保护学会
  • 主编:杨怀文
  • 地址:北京圆明园西路2号
  • 邮编:100193
  • 邮箱:zgswfz@hotmail.com
  • 电话:010-62815625
  • 国际标准刊号:ISSN:2095-039X
  • 国内统一刊号:ISSN:11-5973/S
  • 邮发代号:2-507
  • 获奖情况:
  • 国内外数据库收录:
  • 英国农业与生物科学研究中心文摘,英国动物学记录,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2011版),中国北大核心期刊(2014版)
  • 被引量:1974