Results 11 to 20 of about 18,364 (206)

STUDIES ON THE ACROSOME. X. DIFFERENTIATION OF THE STARFISH ACROSOME* [PDF]

open access: yesDevelopment, Growth and Differentiation, 1971
The course of acrosomal differentiation observed during spermiogenesis in two starfishes shows that the central components of the mature acrosome are produced by Golgi activity. In the early spermatid, small Golgi-derived vesicles enter the hydrated acrosomal mass and appear to contribute their membrane constituents to the acrosomal-membrane precursor ...
J C, Dan, A, Sirakami
openaire   +2 more sources

Localization of Acrosomal Proteinase after Vesculation of the Acrosome [PDF]

open access: yesDevelopment, Growth & Differentiation, 1981
The freshly ovulated egg is covered by the zona pellucida and follicular‐cell layer. The former is reported to dissolved by acrosomal proteinase and the latter may be dispersed by hyaluronidase. If these two enzymes have different targets, two possibilities can be taken into consideration concerning the timing of release of the two enzymes from the ...
Yasuhiro, Sakai, Kenjiro, Yasuda
openaire   +2 more sources

The Acrosomal Matrix [PDF]

open access: yes, 2016
The acrosome, a single exocytotic vesicle on the head of sperm, has an essential role in fertilization, but the exact mechanisms by which it facilitates sperm-egg interactions remain unresolved. The acrosome contains dozens of secretory proteins that are packaged into the forming structure during spermatogenesis; many of these proteins are localized ...
James A, Foster, George L, Gerton
openaire   +2 more sources

EVALUATION OF ACROSOMAL STATUS ON LLAMA SPERM [PDF]

open access: yesSPERMOVA, 2015
No ...
Carretero MI   +3 more
doaj   +1 more source

Artemisia vulgaris extract causes precocious acrosome reaction and viability loss but low rate of membrane damage in mouse spermatozoa

open access: yesJournal of Animal Science and Technology, 2021
Several herbs including Artemisia are known to possess conceptive property. In the present study, mouse spermatozoa were incubated with ethanol extract of Artemisia vulgaris leaves. The effect of
Sabina Bhandari   +4 more
doaj   +1 more source

The effect of concentration and storage time on short-term storage of ram sperm [PDF]

open access: yesKafkas Universitesi Veteriner Fakültesi Dergisi, 2022
The present study was conducted to observe the effect of different dilution rates on ram sperm motion characters (motility, progressivity, velocity and average of speed), head diameter, mitochondrial membrane potential (MMP) and live intact acrosome ...
Cemal DAYANIKLI   +4 more
doaj   +1 more source

Evaluation of rooster semen quality using CBB dye based staining method

open access: yesJournal of Animal Reproduction and Biotechnology, 2022
The acrosome cap allows sperm to penetrate the egg membrane and produce male pronuclei within female chicken eggs, facilitating successful fertilization.
Sung Woo Kim   +4 more
doaj   +1 more source

The biochemistry of the acrosome reaction [PDF]

open access: yesMolecular Human Reproduction, 1997
The binding of the spermatozoon to the oocyte zona pellucida (ZP) occurs via specific receptors localized over the anterior head region of the spermatozoon. Zona pellucida binding stimulates the spermatozoa to undergo the acrosome reaction resulting in the release of hydrolytic enzymes and in the exposure of new membrane domains, both of which are ...
H, Breitbart, B, Spungin
openaire   +2 more sources

Effectiveness of Adding Different Sucrose in Tris-Egg Yolk Diluent on the Sperm Fertility of Sexing Swamp Buffalo (Bubalus bubalis)

open access: yesJournal of Tropical Life Science, 2023
Spermatozoa sexing requires a diluent that can protect and provide an optimal environment to maintain the quality of spermatozoa. This study targets to determine the effectiveness of adding sucrose to tris-egg yolk diluent on the sperm quality of the ...
Yendraliza Yendraliza   +6 more
doaj   +1 more source

Genes Regulating Spermatogenesis and Sperm Function Associated With Rare Disorders

open access: yesFrontiers in Cell and Developmental Biology, 2021
Spermatogenesis is a cell differentiation process that ensures the production of fertilizing sperm, which ultimately fuse with an egg to form a zygote.
Emma Linn   +4 more
doaj   +1 more source

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