Spatial aspects of cell interactions involved in the determination of dorsoventral polarity in equally cleaving gastropods and regulative abilities of their embryos, as …
WJA Arnolds, JAM van den Biggelaar… - Wilhelm Roux's archives …, 1983 - Springer
In equally cleaving gastropods, the interactions between micromeres and macromeres involved
in the determination of the mesentoblast mother cell (3D) were studied by changing the …
in the determination of the mesentoblast mother cell (3D) were studied by changing the …
Significance of the polar lobe for the determination of dorsoventral polarity in Dentalium vulgare (da Costa)
P Guerrier, JAM Van Den Biggelaar… - Developmental …, 1978 - Elsevier
The development of dorsoventral polarity in Dentalium dentale has been analyzed after
inhibiting first polar lobe formation with cytochalasin B and bisecting the egg into two equal parts …
inhibiting first polar lobe formation with cytochalasin B and bisecting the egg into two equal parts …
Development ofDentalium following removal of D-quadrant blastomeres at successive cleavage stages
JN Cather, NH Verdonk - Wilhelm Roux's archives of developmental …, 1979 - Springer
Each primary micromere and macromere of the D-quadrant ofDentalium was deleted, through
the mesentoblast stage, to investigate the way in which the polar lobe cytoplasm exerts its …
the mesentoblast stage, to investigate the way in which the polar lobe cytoplasm exerts its …
The development of Bithynia tentaculata (Prosobranchia, Gastropoda) after removal of the polar lobe
JN Gather, NH Verdonk - Development, 1974 - journals.biologists.com
The polar lobe of the egg of Bithynia, with a volume of less than 1 % of that of the egg, was
surgically removed. Lobeless embryos form no mesentoblast cell nor mesoderm bands. They …
surgically removed. Lobeless embryos form no mesentoblast cell nor mesoderm bands. They …
The structure of a morphogenetic cytoplasm, present in the polar lobe of Bithynia tentaculata (Gastropoda, Prosobranchia)
MR Dohmen, NH Verdonk - Development, 1974 - journals.biologists.com
In the first polar lobe of the egg of Bithynia tentaculata a cup-shaped mass of small vesicles
is described, which fills the greater part of the lobe. It is named the ‘vegetal body’. With …
is described, which fills the greater part of the lobe. It is named the ‘vegetal body’. With …
The effect of removing the polar lobe in centrifuged eggs of Dentalium
NH Verdonk - Development, 1968 - journals.biologists.com
Classical evidence for the existence of morphogenetic substances was provided by
experiments with spiralian eggs possessing a polar lobe: Ilyanassa ( Crampton, 1896 ; Clement, …
experiments with spiralian eggs possessing a polar lobe: Ilyanassa ( Crampton, 1896 ; Clement, …
The development of isolated blastomeres in Bithynia tentaculata (prosobranchia, gastropoda)
NH Verdonk, JN Cather - Journal of Experimental Zoology, 1973 - Wiley Online Library
The development of isolated blastomeres, separated at the first and second cleavage has
been studied. After separation at the first cleavage, one half‐embryo (CD) becomes swollen …
been studied. After separation at the first cleavage, one half‐embryo (CD) becomes swollen …
Role of the Vegetal Body in the Regulation of Development in Bithynia tentaculata (Prosobranchia, Gastropoda)
JN Cather, NH Verdonk… - American Zoologist, 1976 - academic.oup.com
In the first polar lobe of the egg of Bithyma tentaculata there is a cup-shaped mass of small
vesicles rich in RNA, called the vegetal body. It is passed to the CD blastomere with the polar …
vesicles rich in RNA, called the vegetal body. It is passed to the CD blastomere with the polar …
The morphogenetic significance of the first quartet micromeres for the development of the snailBithynia tentaculata
WI Van Dam, NH Verdonk - Wilhelm Roux's archives of developmental …, 1982 - Springer
The significance of the first quartet of micromeres for the morphogenesis ofBithynia — a
polar lobe-forming gastropod-has been studied by deletion experiments. After removal of the …
polar lobe-forming gastropod-has been studied by deletion experiments. After removal of the …
Experimental studies on morphogenetic factors localized in the first and the second polar lobe of Dentalium eggs
WLM Geilenkirchen, NH Verdonk… - …, 1970 - journals.biologists.com
During the development of several annelids and molluscs, a lobe of protoplasm is observed
to protrude from the vegetal pole of the egg during the first cleavages. Removal of this polar …
to protrude from the vegetal pole of the egg during the first cleavages. Removal of this polar …