Rhizobium

Japanese: Rhizobium
Rhizobium

…the nodule-like structure that forms when root nodules invade the roots of a plant. In the case of legumes, Rhizobium invades. There are many examples of root nodules being formed in plants other than legumes, and it can even be said to be a fairly common phenomenon in woody plants.

From [Rhizobium]

... refers to bacteria that invade the roots of legumes and other plants, forming nodules with knob-like structures, and fix nitrogen in symbiosis with the host. The genus Rhizobium , which lives symbiotically with legumes, is limited to a certain range of legumes depending on the species, and is divided into eight groups based on the affinity to the host: alfalfa, clover, pea, kidney bean, lupin, soybean, cowpea, and milk vetch. There is still no satisfactory explanation as to why certain root nodule bacteria invade and form nodules only in certain plants. ...

*Some of the terminology that mentions "Rhizobium" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…植物の根に根粒菌が侵入したときにできる粒状の構造。マメ科植物の場合にはRhizobiumが侵入する。 マメ科植物以外にも根粒の形成される例は多く,木本ではむしろごくふつうの現象とさえいえる。…

【根粒菌】より

…マメ科植物などの根に侵入してこぶ状の構造の根粒を作り,宿主と共生して窒素固定を行う細菌をいう。根粒菌のうちマメ科に共生するRhizobium属は種によって,それが共生するマメ科植物の範囲が限定され,宿主に対する親和関係で,アルファルファ,クローバー,エンドウ,インゲン,ルーピン,ダイズ,カウピー,レンゲの8群に分かれている。特定の根粒菌が特定の植物のみに侵入して根粒を作るのかまだ満足のいく説明はない。…

※「Rhizobium」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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