…Some species, such as the Podostemaceae, lose their leaves and lose them, and the roots become flat and leaf-like, becoming assimilation organs, but many species assimilate not only the leaves and stems, but also the roots, to a lesser extent, in the air. Respiratory roots are aerial roots that have developed special structures for ventilation, and some have well-developed intercellular spaces in the cortex. The Selaginellaceae and Cerataceae families have special structures called rhizophores, which can be seen as modified roots or modified stems. … *Some of the terminology that mentions "respiratory root" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…カワゴケソウ科の1種のように,葉が退化してなくなり,根が扁平で葉のような姿をとって同化器官になるものもあるが,葉や茎が同化をするうえに,根も空気中でわずかながら同化するというものも多い。気根のうち通気のために特別の構造をもつようになったものが呼吸根respiratory rootで,皮層に細胞間隙がよく発達したものなどがある。 イワヒバ科やミズニラ科には担根体rhizophoreとよばれる特殊な構造があり,根の変形とみられたり,茎の変形とみられたりする。… ※「respiratory root」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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