ミコプラズマのような生物によって生成される螺旋状の繊維は,トウモロコシのストント病に関連しています

R E Davis, J F Worley, R F Whitcomb

Science (New York, N.Y.)

|May 5, 1972

まとめ

螺旋状の繊維は,ミコプラズマのような生物として特定され,トウモロコシのストントに感染した植物で観察されました. これらの構造は,疾患の発症と関連しており,感染症の診断に役立ちます.

科学分野:

植物病理学植物病理学
微生物学微生物学とは
細胞生物学細胞生物学

背景:

コーン・ストント病は,トウモロコシ生産に重大な脅威をもたらしています.
コーンストントの病因は,ミコプラズマのような生物 (MLO) であると推測されています.
以前の研究では,MLOの形態学と細胞構造の決定的な視覚化が欠けていました.

研究の目的:

推定されたトウモロコシのスタント剤の形態を視覚化し,特徴づけること.
先進的な顕微鏡技術を使用して,MLOの細胞構造を調査する.
MLOの存在と疾患の発生と診断を相関させる.

主な方法:

フェーズコントラスト顕微鏡を用いて,植物組織抽出物のMLOを観察した.
詳細な超構造分析のために,フリーズエッチングや薄切り技術を含む電子顕微鏡を用いた.
感染状態と病気の症状は,トウモロコシの植物で評価されました.

主要な成果:

ユニット膜で囲まれた螺旋状の繊維は,MLOとして識別されました.
これらの繊維は,感染した植物のフローム細胞内で観察されました.
これらの繊維の存在は,疾患の発症と相関しており,無症状の植物でも感染を診断するのに有用でした.

結論:

観察された螺旋状の繊維は,トウモロコシのストントを引き起こすミコプラズマのような生物の形態学と一致しています.
この発見は,MLOがトウモロコシのストント病の病因因因子であるという仮説を裏付けている.
この研究は,MLOの識別を通じて,トウモロコシのストント疾患の診断を改善するための基礎を提供します.

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