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Identification of factors important for lignin biodegradation by white-rot fungi

Research Project

Project/Area Number 16K18729
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Wood science
Research InstitutionKyoto University

Principal Investigator

Nakazawa Takehito  京都大学, 農学研究科, 助教 (80608141)

Project Period (FY) 2016-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywordsリグニン / 木材腐朽 / キノコ / 担子菌 / 順遺伝学 / 腐朽菌 / 白色腐朽菌 / キシラナーゼ / 遺伝子破壊 / 突然変異体 / 白色腐朽
Outline of Final Research Achievements

We successfully identified six genes of which mutations cause defects in the ligninolytic activity in the white-rot Agaricomycete Pleurotus ostreatus through an efficient forward genetics approach. About reverse genetics, we successfully created single- and double-gene disputants of genes encoding putative xylanase, GH10 and GH11. We then examined the effects of the gene disruptions on ligninolytic activity (medium is beech wood sawdust). however, it was revealed that all of the gene disputants we have created in this study does not cause significant defects in it.

Report

(3 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • Research Products

    (11 results)

All 2018 2017 2016

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (9 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Effects of pex1 disruption on wood lignin biodegradation, fruiting development and the utilization of carbon sources in the white-rot Agaricomycete Pleurotus ostreatus and non-wood decaying Coprinopsis cinerea2017

    • Author(s)
      Nakazawa Takehito、Izuno Ayako、Horii Masato、Kodera Rina、Nishimura Hiroshi、Hirayama Yuichiro、Tsunematsu Yuta、Miyazaki Yasumasa、Awano Tatsuya、Muraguchi Hajime、Watanabe Kenji、Sakamoto Masahiro、Takabe Keiji、Watanabe Takashi、Isagi Yuji、Honda Yoichi
    • Journal Title

      Fungal Genetics and Biology

      Volume: 109 Pages: 7-15

    • DOI

      10.1016/j.fgb.2017.10.002

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Identification of two mutations that cause defects in the ligninolytic system through an efficient forward genetics in the white-rot agaricomycete Pleurotus ostreatus2017

    • Author(s)
      Nakazawa T, Izuno A, Kodera R, Miyazaki Y, Sakamoto M, Isagi Y, Honda Y
    • Journal Title

      Environmental Microbiology

      Volume: 19 Issue: 1 Pages: 261-272

    • DOI

      10.1111/1462-2920.13595

    • Related Report
      2017 Annual Research Report 2016 Research-status Report
    • Peer Reviewed
  • [Presentation] Cellulolytic enzyme genes are significantly upregulated by most of the mutations that cause defects in the ligninolytic activity in the white-rot fungus Pleurotus ostreatus2018

    • Author(s)
      Nakazawa T, Kodera R, Morimoto R, Takenaka A, Tsuji S, Nishimura H, Watanabe T, Sakamoto M, Honda Y
    • Organizer
      14th European Conference on Fungal Genetics
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ヒラタケにおけるリグニン分解不全変異が、多糖分解関連酵素遺伝子群の転写に与える影響の解析2018

    • Author(s)
      中沢威人、小寺里奈、竹中敦紀、森本亮太、坂本正弘、本田与一
    • Organizer
      第68回日本木材学会大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 白色腐朽菌ヒラタケにおけるpex1遺伝子の機能喪失が、木質生分解および子実体発生に与える影響2017

    • Author(s)
      中沢威人 ら
    • Organizer
      第67回日本木材学会大会
    • Place of Presentation
      九州大学
    • Year and Date
      2017-03-17
    • Related Report
      2016 Research-status Report
  • [Presentation] 白色腐朽菌ヒラタケにおけるキシラナーゼ群の機能欠損が木質リグニン分解に与える影響2017

    • Author(s)
      湯村直樹、中沢威人、竹中敦紀、大沼広宜、泉津弘佑、福田泰久、入江俊一、白坂憲章、坂本正弘、本田与一
    • Organizer
      第17回糸状菌分子生物学カンファレンス
    • Related Report
      2017 Annual Research Report
  • [Presentation] 白色腐朽菌ヒラタケにおけるGH10・GH11の機能喪失が リグニン分解に及ぼす影響について2017

    • Author(s)
      湯村直樹、中沢威人、大沼広宜、泉津弘)、入江俊一、福田泰久、白坂憲章、坂本正弘、本田与一
    • Organizer
      第61回リグニン討論会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 白色腐朽菌ヒラタケにおけるwtr1遺伝子変異がリグニン分解システムに与える影響2016

    • Author(s)
      小寺里奈 ら
    • Organizer
      第16回糸状菌分子生物学カンファレンス
    • Place of Presentation
      京都大学
    • Year and Date
      2016-11-17
    • Related Report
      2016 Research-status Report
  • [Presentation] 担子菌キノコの順遺伝学研究から示唆されてきた、リグニン生分解と子実体形成の関連性2016

    • Author(s)
      中沢威人 ら
    • Organizer
      第16回糸状菌分子生物学カンファレンス
    • Place of Presentation
      京都大学
    • Year and Date
      2016-11-17
    • Related Report
      2016 Research-status Report
  • [Presentation] 担子菌ヒラタケにおけるPosnf5およびPoubc2の変異がリグニン分解酵素生産および有性形態形成に与える影響の解析2016

    • Author(s)
      堀井雅人 ら
    • Organizer
      第16回糸状菌分子生物学カンファレンス
    • Place of Presentation
      京都大学
    • Year and Date
      2016-11-17
    • Related Report
      2016 Research-status Report
  • [Presentation] 順遺伝学アプローチを起点とした、 リグニン分解酵素活性およびリグニン生分解に重要な新たな因子の探索2016

    • Author(s)
      中沢威人 ら
    • Organizer
      第61回リグニン討論会
    • Place of Presentation
      京都大学
    • Year and Date
      2016-10-27
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2019-03-29  

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