Volvox: A simple algal model for embryogenesis, morphogenesis and cellular differentiation
نویسندگان
چکیده
منابع مشابه
Algal Morphogenesis: How Volvox Turns Itself Inside-Out
The coordinated movements of epithelial tissues play vital roles in a variety of processes, from embryonic development to wound healing. The multicellular green alga Volvox carteri is a useful model organism for studying one such movement: epithelial bending [2]. During embryogenesis, the immature spheroid Volvox undergoes a process known as inversion whereby it turns itself completely inside o...
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The green flagellate J’olvox is a simple muhicellular organism having only two kinds of cells, somatic and reproductive. The cells are arranged on the periphery of a spheroid. Asexual individu~s of I’olvox carten’ are composed of 2000-4000 somatic cells and about 16 large reproductive cells (gonidia), located in the posterior region of the spheroid. Mature asexual spheroids show a very regular ...
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In Volvox carteri adults, reproductive cells called gonidia are enclosed within a spherical monolayer of biflagellate somatic cells. Embryos must "invert" (turn inside out) to achieve this configuration, however, because at the end of cleavage the gonidia are on the outside and the flagellar ends of all somatic cells point inward. Generation of a bend region adequate to turn the embryo inside o...
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background: none-chemical distant cellular interactions (ncdci) are among the unexplained issues in cell biology. one example of such interactions is the biophoton-induced growth. in this process, photon emissions from one cell can induce mitosis in other cells while they are chemically separated. this effect is evident among many species. hypothesis: it is hypothesized that some simple but uni...
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Volvox and its relatives provide an exceptional model for integrative studies of the evolution of multicellularity and cellular differentiation. The volvocine algae range in complexity from unicellular Chlamydomonas through several colonial genera with a single cell type, to multicellular Volvox with its germ-soma division of labor. Within the monophyletic family Volvocaceae, several species of...
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ژورنال
عنوان ژورنال: Developmental Biology
سال: 2016
ISSN: 0012-1606
DOI: 10.1016/j.ydbio.2016.07.014