«AMPHIBLASTULAE» 관련 영어 책
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1
The Comparative Embryology of Sponges
It must be noted that cruciform cells in P. massiliana amphiblastulae are very
weakly differentiated when compared with those in the amphiblastulae of other
species (Gallissian and Vacelet 1992). Cruciform-cell determinants appear at the
...
Alexander V. Ereskovsky, 2010
Embryos are incubated and the larvae are amphiblastulae. Order
Homosclerophorida Dendy Diagnosis as for the subclass. Family Oscarellidae
Lendenfeld Homosclerophorida which lack mineral or fibre skeleton, but which
retain the pattern ...
Patricia R. Bergquist, 1978
3
Marine Biofouling: Colonization Processes and Defenses
In sponge larvae (amphiblastulae and parenchymulae), no structures have yet
been found that could suggest a possible sensory function. Yet they certainly
respond to light, showing a negative phototaxis (Maldonado and Young, 1996),
and ...
Alexander I. Railkin, 2003
The four cross cells of the amphiblastulae of m m m *:* k ^K */ / Figure 10-17.
Figure 10-16. Oogenesis of Grantia compressa pennigera Haeckel. Prophase
stages of primary meiotic division and period of growth of secondary oocyte.
5
Advances in Sponge Science: Physiology, Chemical and ...
Amphiblastulae larvae also have some maternal cells which migrate in from the
parent mesohyl at the time of inversion. The trichimella larva is somewhat
unusual in being syncytial. Blastomeres fuse during early development to form
the future ...
6
Reproduction, Larval Biology, and Recruitment of the ...
Larvae are Observed in at least 5 species Of abyssal compound ascidians (
Herdman 1886). Larvae Of two species are probably blind. 15. Dwarf males in
abyssal echiurid suggest larval development (Selenka 1885). 16. Amphiblastulae
found ...
Craig M. Young, Kevin J. Eckelbarger, 1994
7
Biosilica in Evolution, Morphogenesis, and ...
Focusing on Porifera, after fertilization the zygote increases in size and develops
flagellae. Depending on the taxa, morphologically slightly different types of larvae
(amphiblastulae, parenchymellae, or coeloblastulae) are formed and released ...
W.E.G. Müller, Mikhael A. Grachev, 2009
8
Primordial Germ Cells in the Invertebrates: From Epigenesis ...
The amphiblastulae of Sycon and Grantia contain four special cells situated
symmetrically in cross-like position in the third or fourth tier of flagellated cells.
These cells lose their flagella and contain chromatic bodies at their lower pole, ...
Pieter Dirk Nieuwkoop, Lien A. Sutasurya, 1981
... Euplectella Class Demospongiae horny sponges, spicules of spongin, silica, or
both, sometimes none, silica spicules with one to four rays, body of leuconoid
type, larvae amphiblastulae or stereoblastulae Spongia Figure 20.2 Sponge
types ...
10
The origin and early evolution of animals
In the demosponges, where amphiblastulae are not common, this larva arises
from early blastomeres — the morula stage — with rather similar-appearing cells
simply separated by the "enigmatic cells." In the calcareous sponges, above the ...
