Alfalfa-Verticillium albo-atrum Interactions : IV. Reactions of alfalfa protoplasts to fungal culture filtrates and cell wall components

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  • KOIKE Masanori
    Laboratory of Forage Crop Science, Obihiro University of Agriculture and Veterinary Medicine
  • SHIMADA Tohru
    Laboratory of Forage Crop Science, Obihiro University of Agriculture and Veterinary Medicine
  • AMEMIYA Yoshimiki
    Laboratory of plant Pathology, Faculty of Horticulture, Chiba University

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Other Title
  • アルファルファとVerticillium albo-atrumの相互作用 : IV. 菌培養濾液および菌体細胞壁成分に対するプロトプラストの反応
  • アルファルファとVerticillium albo-atrumの相互作用-4-菌培養濾液および菌体細胞壁成分に対するプロトプラストの反応〔英文〕
  • アルファルファ ト Verticillium albo atrum ノ ソウゴ

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Abstract

Reactions of alfalfa protoplasts of sic genotypes (three resistant ant three susceptible genotypes) to Verticillium albo-atrum culture filtrates fractionized by different molecular cut-off (3,500, 12-14,000 and 50,000) and to the cell wall components were investigated. Protoplasts derived from susceptible genotypes reacted to a low molecular weight fraction (3,500 <) more highly than those derived from resistant genotypes. On the other hand, protoplasts derived from resistant genotypes reacted to high molecular weight fractions 12-14,000 〜 50,000, > 50,000) and V. albo-atrum cell wall components more highly than those from susceptible genotypes. These results indicate that low molecular weight fractions may be useful for in vitro selection using V. albo-atrum culture filtrate, and that the percentage of reacted protoplasts to the fungal cell wall components may be a good indicator for the in vitro resistance.

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