ラマン分光法による磁性細菌のマグネタイト合成過程の研究

DOI DOI Web Site Web Site Web Site ほか1件をすべて表示 一部だけ表示 被引用文献2件 参考文献76件 オープンアクセス

書誌事項

タイトル別名
  • Laser Raman Spectroscopic Study on Magnetite Formation in Magnetotactic Bacteria
  • ラマン ブンコウホウ ニ ヨル ジセイ サイキン ノ マグネタイト ゴウセイ カテイ ノ ケンキュウ

この論文をさがす

説明

  Magnetotactic bacteria have one or more chains of magnetosome, consisting of nano-sized magnetic crystal covered with a phospholipid bilayer and use it to sense the geomagnetic fields. In order to elucidate the molecular process to make magnetosome from the iron compounds found in the bacteria, laser Raman spectroscopic measurements were performed with the magnetotactic bacterium, Magnetospirillum magnetotacticum MS-1 and the fractions separated from it. The clear Raman signals were observed at 662 cm-1 and 740 cm-1. The former was observed in whole cell and magnetosome fraction, but not in membrane and cytoplasmic fraction and assigned to the Raman signal of magnetite. The Raman signal of the latter was observed not only in the magnetosome fraction, but also in the cytoplasmic fraction and membrane fraction. This signal was assumed to ferrihydrite. Based on the results, the pathway of the magnetosome synthesis and possible roles of ferrihydrite in the magnetotactic bacteria were discussed.<br>

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 73 (5), 334-339, 2009

    公益社団法人 日本金属学会

被引用文献 (2)*注記

もっと見る

参考文献 (76)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ