perivitelline


Also found in: Medical.
Related to perivitelline: perivitelline membrane

perivitelline

(ˌpɛrɪvɪˈtɛlɪn)
adj
(Biology) biology located around the vitellus (yolk) of an egg
References in periodicals archive ?
On the other hand, if a polar body is present in the perivitelline space, the oocytes are classified as MII.
Consisely, oocytes enucleation was performed under UV light, and a single fibroblast cell was injected into the perivitelline space of an enucleated oocyte in [M.
In teleosts, the cortical alveoli content is released into the perivitelline space, at the moment of fertilization, blocking polyspermy and contributing to chorion hardening (Hart, 1990).
The trehalose content of perivitelline fluid influences hatching and is important for the survival of dormant, unhatched juveniles (Perry, 1989).
The inner mucous matrix functions as a medium for the oviducal gland jelly, and is essential for chorion expansion and the formation of the perivitelline space around the ovum (Ikeda et al.
They also tested the osmolarity of the perivitelline fluid surrounding the developing embryo over a wide range of salinities, and showed that the fluid changed rapidly and became almost isosmotic with the surrounding medium.
Polar body and metaphase plate were removed with the aid of micromanipulators, and then only one Wharton jelly's cell or skin fibroblast between third and tenth passages was injected into the perivitelline space.
In the assessment of the quality of oocytes one can carry out scoring of cumulus-oocyte complex (COC), ZP, perivitelline space, PB, vacuolizations, etc.
On a broad scale, identifications traditionally have been based on morphological characteristics, including egg shape and diameter; number, size, and position of oil globules; width of the perivitelline space; nature of the egg yolk and chorion surface; and embryonic pigmentation.
For morphometric characterization of dry fertilized eggs, perivitelline space (PS) and mouth opening and total length of newly hatched larvae were measured for 100 specimens with an ocular micrometer adapted on a stereomicroscope.
2]S-posttranslationally modified proteins lead to MPF/MAPK-orchestrated meiotic maturation reinitiation (equal to GVBD, germinal vesicle breakdown) and completion (with extruded polar body and small particles visible in perivitelline space).