...The resting buds are formed asexually in the stomach cord that connects the stomach to the body wall, and can withstand dryness and low temperatures. In the case of the bryozoan Victorella pavida and the small brown bryozoan Bowerbankia caudata , winter buds are formed on the walls of the insect chamber or on the stolon roots and overwinter. The outside of the winter buds is surrounded by a thick chitin layer, and the inside contains nutrients similar to egg yolk. When the environment is suitable, they germinate and become zooids. *Some of the terminology that mentions "Bowerbankia caudata" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…休芽は胃と体壁とを結ぶ胃緒の中で無性的につくられ,乾燥や低温に耐えることができ,ヒメテンコケムシでは4年半も発芽能力をもっていたといわれる。 汽水産のチャミドロモドキVictorella pavidaやチビオフクロコケムシBowerbankia caudataでは虫室壁や走根に冬芽をつくって越冬する。冬芽の外部は厚いキチン層で囲まれ,内部には卵黄様の栄養物を含んでいて,適当な環境になると発芽して個虫になる。… ※「Bowerbankia caudata」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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