Buscar
Mostrando ítems 11-20 de 133
Physiological reorganization in the hypotrich ciliate Apoamphisiella vernalis (Protista, Ciliophora, Hypotricha)
(Universidade Federal do ParáBrasilUFPA, 2017)
Spicoid ontogeny in Diplasia (Mapanioideae, Cyperaceae): an approach on the developmental processes operating in Mapanioideae spicoids
(2020-12-01)
Mapanioideae (besides Cyperoideae the other subfamily of Cyperaceae) is divided in two tribes (Hypolytreae and Chrysitricheae) in which the reproductive units (spicoids) are interpreted either as flowers or as inflorescences. ...
Reproductive organogenesis in the apple snail Pomacea Canaliculata (Lamarck, 1822), with reference to the effects of xenobiotics
(Oxford University Press, 2013-03)
The complex array of male and female reproductive organs in Pomacea canaliculata develops from the gonoductal and copulatory primordia. These primordia are present in both sexes, but while the gonoductal primordium (or ...
Lef1-dependent Wnt/β-catenin signalling drives the proliferative engine that maintains tissue homeostasis during lateral line development
(2011)
During tissue morphogenesis and differentiation, cells must self-renew while contemporaneously generating daughters that contribute to the growing tissue. How tissues achieve this precise balance between proliferation and ...
Larval development of Brycon amazonicus (Teleostei, Bryconidae) with a focus on locomotory, respiratory and feeding structures
(2018-12-01)
In the present work we describe the larval development of Brycon amazonicus, with emphasis on structures linked to swimming, respiration and feeding. We monitored from larval hatching (13 h post-fertilization) to juvenile ...
Floral organogenesis and vasculature in Mayacaceae, an enigmatic family of Poales
(2019-08-01)
Mayacaceae are a small and monogeneric aquatic family including 4–6 species and with an unstable phylogenetic position within Poales. Therefore, the floral development and vasculature were studied in Mayaca fluviatilis and ...
Presence of the matrix metalloproteinases during the migration of the primordial germ cells in zebrafish gonadal ridge
(2021-02-01)
In vertebrates, the primordial germ cells (PGCs) differentiate from extragonadal regions, migrating to gonadal ridge during the embryonic development. However, recent studies in mammals indicate that the PGCs originate ...
Origin and Early Development of the Posterior Lateral Line System of Zebrafish
(SOC NEUROSCIENCE, 2010-01-11)
The lateral line system of teleosts has recently become a model system to study patterning and morphogenesis. However, its embryonic
origins are still not well understood. In zebrafish, the posterior lateral line (PLL) ...