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Pronunciation varies by accent · noun
(biology, obsolete) That portion of the spermatospore which is not converted into spermatoblasts, but carries them..
It does not, however, happen that the whole spermatosphere is converted into spermatoblasts; there remains a passive portion, which in the earthworm occupies a central position; this is the "sperm-blasophore," or "blastophoral cell."
Associted with the formation of the male sex cells from the time they leave the testes until the spermatozoön becomes fully grown there is a protoplasmic structure, termed the blastophore (Bloomfield, '80, Calkins, '95) in Lumbricus, and the cytophore (Voigt, '85) in Branchiobdella varians.
The cytophore now splits internally in such a way as to separate an inner sphere (blastophore) from an outer envelope.
Use blastophore when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Blastophore means (biology, obsolete) That portion of the spermatospore which is not converted into spermatoblasts, but carries them..
Common synonyms include vitellus.
The opposite depends on the specific sense.
It does not, however, happen that the whole spermatosphere is converted into spermatoblasts; there remains a passive portion, which in the earthworm occupies a central position; this is the "sperm-blasophore," or "blastophoral cell."
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