荳科植物の根瘤菌に関する研究 : II. 荳科植物との関係 : その2. 窒素固定からみた関係 : a. えんどう, クロバー, アルファルファ, ルーピン, 大豆群についての実験

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The objective of this study is to examine the meaning of the classification in part I from the point of effectiveness to hosts. The results presented in this paper are those of green house experiments concerning pea, vetch, broad bean, red clover, sweet clover, lupine, and four varieties of soybean, and their respective strains of rhizobia. The strains grouped in the same position are equally effective to some hosts (e.g. pea, vetch; soybean "Izari"×type C), while unequally to others (e. g. broad bean, soybean "Chasengoku"). Similar phenomena are found between different types of rhizobial strains (e. g. "Izari", "Chasengoku"×types A and C). It is, therefore, necessary to modify the classification to a certain extent according to the kind of host. Further division of strains must be tried in the cases of the following combinations : Broad bean × pea bacteria, clover × clover bacteria, sweet clover × type B of alfalfa bacteria, soybean × type B of soybean bacteria. The possibility of such dividing is discussed. The type A of soybean bacteria which is considered typical as soybean organisms seems to be effective to any host used in this study. The classification of rhizobia apart from host does not seem meaningless when strain variation or host specificity is discussed.
1955-03-31