Elasticity and glocality: initiation of embryonic inversion in Volvox
نویسندگان
چکیده
منابع مشابه
Elasticity and glocality: initiation of embryonic inversion in Volvox.
Elastic objects across a wide range of scales deform under local changes of their intrinsic properties, yet the shapes are glocal, set by a complicated balance between local properties and global geometric constraints. Here, we explore this interplay during the inversion process of the green alga Volvox, whose embryos must turn themselves inside out to complete their development. This process h...
متن کاملMechanics and Variability of Cell Sheet Folding in the Embryonic Inversion of $Volvox$
Many embryonic deformations during development are the global result of local cell shape changes and other local active cell sheet deformations. Morphogenesis does not only therefore rely on the ability of the tissue to produce these active deformations, but also on the ability to regulate them in such a way as to overcome the intrinsic variability of and geometric constraints on the tissue. He...
متن کاملCell shape changes and the mechanism of inversion in Volvox
Inversion is a dominant aspect of morphogenesis in Volvox. In this process, the hollow, spheroidal Volvox embryo turns inside-out through a small opening called the phialopore to bring flagella from its inner to its outer surface. Analyses of intact, sectioned, and fragmented embryos by light, scanning electron, and transmission electron microscopy, suggest that shape changes preprogrammed into...
متن کاملInversion in Volvox tertius: the effects of con A.
During the development of Volvox tertius spheroids, a single-celled gonidium enlarges and undergoes multiple incomplete cleavages to give an embryo which is 'inside-out' with respect to the adult organism. A morphogenetic movement, termed 'inversion', turns this hollow ball of cells 'inside-out' through a hole, the phialopore. In V. tertius this phialopore possesses 4 inwardly directed lips. No...
متن کاملVolvox Inversion Mechanics Project Proposal Solid Mechanics ES240
The genus Volvox is comprised of several species of communal multcellular chlorophytes which exhibit a series of interesting morphogenetic events during their developmental cycle. In Volvox carteri, the inversion event is interesting in that after several rounds of cell division from a single cell, the glycoprotein lled, spheroidal plakea completely inverts itself thorough of series of highly c...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of The Royal Society Interface
سال: 2015
ISSN: 1742-5689,1742-5662
DOI: 10.1098/rsif.2015.0671