spermatid


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spermatid

 [sper´mah-tid]
a cell produced by meiotic division of a secondary spermatocyte; it develops into the spermatozoon.

sper·ma·tid

(sper'mă-tid),
A cell in a late stage of the development of the spermatozoon; it is a haploid cell derived from the secondary spermatocyte and differentiates by spermiogenesis into a spermatozoon.
Synonym(s): nematoblast
[spermat- + -id (2)]

spermatid

/sper·ma·tid/ (sper´mah-tid) a cell derived from a secondary spermatocyte by fission, and developing into a spermatozoon.

spermatid

(spûr′mə-tĭd)
n.
Any of the four haploid cells that are formed by meiosis from a spermatocyte and that develop into spermatozoa without further division.

spermatid

[spur′mətid, spərmat′id]
Etymology: Gk, sperma, seed
a male germ cell that arises from a spermatocyte and becomes a mature spermatozoon in the last phase of spermatogenesis.

sper·ma·tid

(spĕr'mă-tid)
A cell in a late stage of the development of the sperm; it is a haploid cell derived from the secondary spermatocyte and evolves by spermiogenesis into a sperm.
[spermat- + -id (2)]

spermatid

a haploid stage in male GAMETO GENESIS.

spermatid

a cell produced by meiotic division of a secondary spermatocyte; it develops into the spermatozoon.
References in periodicals archive ?
Type A spermatogenetic activity, consisting of sertoli cells and spermatogonia, no spermatocytes or spermatids, was 23.
The number of homogenization-resistant spermatids was counted in a Buerker hemocytometer (Brand GmbH, Wertheim, Germany).
Spermiogenesis develops without the occurrence of rotation of the spermatid nucleus, resulting in a teleostean type-II spermatozoon (Mattei, 1970), in which the flagellar axis lies tangential to the nucleus instead of being inserted perpendicular to its base (Abascal et al.
Oral administration of plumieride to male rats for 60 days brought about a significant loss in testes weight, which is known to be mostly related to the number of spermatids and spermatozoa present in the tissue.
Our results are also in agreement with a study13 in which the administration of nicotine resulted in disappearance of elongated and round spermatids.
This study has demonstrated that testicular tyrosine phosphorylated proteins were localized in Leydig cells, Sertoli cells, spermatogonia, spermatocytes, and spermatids of adult Sprague-Dawley rats.
Homogenization-resistant testicular spermatids (stage 19 of spermiogenesis) and sperm in the caput/corpus epididymis and cauda epididymis were assessed as described previously by Robb, Amann, and Killian (1978), with adaptations of Fernandes et al.
1997), we found that in testis, the GNAQ protein localized to Leydig cells, spermatogonial stem cells, spermatocytes, Sertoli cells, and spermatid.
By transferring nuclei of immature spermatid and mature sperm into oocytes, we will interrogate the relevance of nucleosome eviction during spermatogenesis, as a possibly truly epigenetic reprogramming process, for defining embryonic competence.
Sperm effects included alterations in morphology, motility, epididymal sperm count, testicular spermatid count, as well as semen sperm count.
2001a; Badran and Hermo 2002), AQP0 is strongly upregulated in tubules at the round spermatid stage (Hermo et al.