Spermatid

The nuclear portion of the spermatid, which is partly imbedded in the supporting cell, is differentiated to form the head of the spermatozoön, while part of the cell protoplasm forms the middle piece and the tail is produced by an outgrowth from the double centriole of the cell. ❋ Unknown (1918)

Seven of the mice were born after sperm heads were transferred into 23 eggs using a technique called round spermatid injection, and another five were born after 35 eggs were fertilised using intracytoplasmic sperm injection Icsi, a common IVF procedure. ❋ Ian Sample (2011)

• The spermatid is amore or less circular cell containing a nucleus, Golgi apparatus, centeriole and mitochondria. all these components take part in forming the spermatozoon: 1. ❋ Saktivinayaga (2010)

Each spermatid (22 + X or 22 + Y) gradually change its shape to become spermatozoon. ❋ Saktivinayaga (2010)

Spermiogenesis • Or spermateleosis • The process by which a spermatid becomes a spermatozoon. ❋ Saktivinayaga (2010)

• Spermiogenesis is the process of transformation of a rounded spermatid into a spermatozoon. ❋ Saktivinayaga (2010)

And please take note the Alien looks exactly like the humans that walk on earth, because of the spermatid in the world, that was used to create other ancient worlds. ❋ Kamikazeben (2010)

Vigodner M, Morris PL (2005) Testicular expression of small ubiquitin-related modifier-1 (SUMO-1) supports multiple roles in spermatogenesis: silencing of sex chromosomes in spermatocytes, spermatid microtubule nucleation, and nuclear reshaping. ❋ Mara Marongiu Et Al. (2010)

We discussed spermatogenesis -- how we got from a diploid spermatogonial stem cell to a haploid spermatid -- and then spermiogenesis -- the process by which the spermatids acquire the features of spermatozoa: tails, acrosomes and the like. ❋ Scicurious [email protected] (2010)

Giorgini F, Davies HG, Braun RE (2002) Translational repression by MSY4 inhibits spermatid differentiation in mice. ❋ Hitomi Suzuki Et Al. (2010)

Altogether, our data suggests that the head cyst cell adheres to the maturing spermatid heads through F-actin-based extensions, thus maintaining them in a tight bundle. ❋ Unknown (2009)

Disruption of these F-actin based processes was associated with spermatid bundle disassembly and premature sperm release inside the testis. ❋ Unknown (2009)

The RNAi phenotype of melav2 was characterized by an aberrant spermatid morphology, where sperm elongation often failed, and an empty seminal vesicle. ❋ Kiyono Sekii (2009)

In addition, immunostaining using an early-spermatid specific antibody revealed that melav2 RNAi treated worms had a larger amount of signal positive cells, suggesting that many cells failed the transition from early spermatid stage. ❋ Kiyono Sekii (2009)