Ooplasmic segregation and axis formation in polychaete nereis virens embryo

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Ooplasmic segregation and axis formation in polychaete nereis virens embryo. / Kostyuchenko, R.P.; Dondua, A.K.

In: Russian Journal of Developmental Biology, Vol. 31, No. 2, 2000, p. 95-105.

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Kostyuchenko, R.P. ; Dondua, A.K. / Ooplasmic segregation and axis formation in polychaete nereis virens embryo. In: Russian Journal of Developmental Biology. 2000 ; Vol. 31, No. 2. pp. 95-105.

BibTeX

@article{4282d0bc2c944654b03c9336646361a1,

title = "Ooplasmic segregation and axis formation in polychaete nereis virens embryo",

abstract = "Ooplasmic segregation is of great importance in the development of Annelida. The mechanisms of this process are very diverse in different groups of polychaetes, oligochaetes, and leeches (Femandez et al.,1998). Ooplasmic segregation in Nereis virens is connected with the first meiotic spindle formation and animal-vegetative axis appearance. Spherical polyaxial symmetry of the oocyte transforms into radial stratified symmetry in the course of ooplasmic segregation. There are two main steps of Ooplasmic segregation in Nereis virens. The first step begins after the cortical reaction when the central clear cytoplasm reaches the surface of the oocyte. The movement of the cytoplasm is sensitive to nocodazole, colchicine, and cytochalasin B and appears to be mediated by microtubules and, partly, by microfilaments. The second step is not sensitive to the microtubule inhibitors and is mediated mainly by actin filaments. Ooplasmic segregation in Nereis virens may be considered as a primitive form of ooplasmic segregation in Annelida.",

keywords = "Formation of embryonic morphological axes, Meiotic division, Oocyte, Ooplasmic segregation, Polychaetes",

author = "R.P. Kostyuchenko and A.K. Dondua",

year = "2000",

doi = "DOI: 10.1007/BF02758812",

language = "English",

volume = "31",

pages = "95--105",

journal = "Russian Journal of Developmental Biology",

issn = "1062-3604",

publisher = "МАИК {"}Наука/Интерпериодика{"}",

number = "2",

}

RIS

TY - JOUR

T1 - Ooplasmic segregation and axis formation in polychaete nereis virens embryo

AU - Kostyuchenko, R.P.

AU - Dondua, A.K.

PY - 2000

Y1 - 2000

N2 - Ooplasmic segregation is of great importance in the development of Annelida. The mechanisms of this process are very diverse in different groups of polychaetes, oligochaetes, and leeches (Femandez et al.,1998). Ooplasmic segregation in Nereis virens is connected with the first meiotic spindle formation and animal-vegetative axis appearance. Spherical polyaxial symmetry of the oocyte transforms into radial stratified symmetry in the course of ooplasmic segregation. There are two main steps of Ooplasmic segregation in Nereis virens. The first step begins after the cortical reaction when the central clear cytoplasm reaches the surface of the oocyte. The movement of the cytoplasm is sensitive to nocodazole, colchicine, and cytochalasin B and appears to be mediated by microtubules and, partly, by microfilaments. The second step is not sensitive to the microtubule inhibitors and is mediated mainly by actin filaments. Ooplasmic segregation in Nereis virens may be considered as a primitive form of ooplasmic segregation in Annelida.

AB - Ooplasmic segregation is of great importance in the development of Annelida. The mechanisms of this process are very diverse in different groups of polychaetes, oligochaetes, and leeches (Femandez et al.,1998). Ooplasmic segregation in Nereis virens is connected with the first meiotic spindle formation and animal-vegetative axis appearance. Spherical polyaxial symmetry of the oocyte transforms into radial stratified symmetry in the course of ooplasmic segregation. There are two main steps of Ooplasmic segregation in Nereis virens. The first step begins after the cortical reaction when the central clear cytoplasm reaches the surface of the oocyte. The movement of the cytoplasm is sensitive to nocodazole, colchicine, and cytochalasin B and appears to be mediated by microtubules and, partly, by microfilaments. The second step is not sensitive to the microtubule inhibitors and is mediated mainly by actin filaments. Ooplasmic segregation in Nereis virens may be considered as a primitive form of ooplasmic segregation in Annelida.

KW - Formation of embryonic morphological axes

KW - Meiotic division

KW - Oocyte

KW - Ooplasmic segregation

KW - Polychaetes

UR - http://www.scopus.com/inward/record.url?scp=0034153146&partnerID=8YFLogxK

U2 - DOI: 10.1007/BF02758812

DO - DOI: 10.1007/BF02758812

M3 - Article

C2 - 10776639

VL - 31

SP - 95

EP - 105

JO - Russian Journal of Developmental Biology

JF - Russian Journal of Developmental Biology

SN - 1062-3604

IS - 2

ER -

ID: 5017463