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单词 statoblast
释义

statoblast

enUK

stat·o·blast

S0720600 (stăt′ə-blăst′)n. An asexually produced encapsulated bud of certain freshwater bryozoans that is released upon disintegration of the parent colony and develops into a new organism after a period of dormancy.

statoblast

(ˈstætəʊˌblɑːst) n (Zoology) zoology an encapsulated bud produced asexually by certain bryozoans that can survive adverse conditions and that gives rise to a new colony

stat•o•blast

(ˈstæt əˌblæst)

n. an asexually produced group of encased cells in certain bryozoans, which can survive unfavorable conditions and germinate to produce a new colony. [1850–55]

Statoblast

enUK

statoblast

[′stad·ə‚blast] (invertebrate zoology) A chitin-encapsulated body which serves as a special means of asexual reproduction in the Phylactolaemata.

Statoblast

 

a dormant winter bud in freshwater bryozoans. Statoblasts develop within the mesogastrium and are internal buds (in contrast to external buds from which colonies are formed). They have a tough outer coat, sometimes with hooklike excrescences, and most commonly are lenticular in shape. When the maternal organism dies in the autumn, statoblasts drop from its body and, owing to the presence of air chambers, float in the water. The coat of the statoblast bursts open in the spring, and from it emerges a young bryozoan, the progenitor of a new colony.

statoblast

enUK

statoblast

an internal bud in a BRYOZOAN that develops into a new individual.
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更新时间:2024/12/24 3:02:56