Inhibition of Photosystem 2 of Spinach by Lichen-derived Depsides

• ENDO Tsuyoshi

  Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University

• TAKAHAGI Toshikazu

  Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University

• KINOSHITA Yasuhiro

  Research Center, Nippon Paint Co., Ltd.

• YAMAMOTO Yoshikazu

  Research Center, Nippon Paint Co., Ltd.

• SATO Fumihiko

  Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University

書誌事項

タイトル別名

• Inhibition of Photosystem II of Spinach by Lichen-derived Depsides.

抄録

  Barbatic acid, a lichen-derived depside, inhibited oxygen evolution in spinach thylakoid membranes. It also affected parameters of Chl fluorescence, (Fm′-F)/F and Fv/Fm. Using specific donors and acceptors of electrons, we found two sites of inhibition in the PS II complex. The primary site, which is responsible for the inhibition of oxygen evolution, is at the reducing side of Q_A, possibly at Q_B. The other site is at the oxidizing side of P680 but not in the oxygen evolving complex, suggesting Yz as the target. At both sites, irreversible binding of the depside to the targets seems to be responsible for the inhibitions. Among the 8 lichen acids compared, barbatic acid was the most potent inhibitor for both the reducing site and oxidizing site.<br>

収録刊行物

• Ｂｉｏｓｃｉｅｎｃｅ，　Ｂｉｏｔｅｃｈｎｏｌｏｇｙ，　ａｎｄ　Ｂｉｏｃｈｅｍｉｓｔｒｙ

  Ｂｉｏｓｃｉｅｎｃｅ，　Ｂｉｏｔｅｃｈｎｏｌｏｇｙ，　ａｎｄ　Ｂｉｏｃｈｅｍｉｓｔｒｙ 62 (10), 2023-2027, 1998

  公益社団法人 日本農芸化学会

キーワード

• barbatic acid
• depside
• lichen
• photosystem II
• spinach

詳細情報

• CRID: 1390282681447295872
• NII論文ID: 110002679065
• NII書誌ID: AA10824164
• DOI: 10.1271/bbb.62.2023
• COI: 1:CAS:528:DyaK1cXntlegtb4%3D
• ISSN: 13476947
• ISSN: 09168451
• ISSN: http://id.crossref.org/issn/09168451
• NDL書誌ID: 4666645
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4666645
• Web Site: http://www.tandfonline.com/doi/pdf/10.1271/bbb.62.2023
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可