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Development of the germinal epithelium and early folliculogenesis during ovarian morphogenesis in the cichlid fish Cichlasoma dimerus (Teleostei, Perciformes)
(Wiley, 2014-10)
Formation of the germinal epithelium and folliculogenesis during ovarian development in Cichlasoma dimerus were described at the light- and electron-microscopic levels. Prior to gonadal differentiation, germ cells and ...
Ultrastructure of the cyst wall of Haematococcus pluvialis (Chlorophyceae): wall development and behaviour during cyst germination
(International Phycological Society, 2006-11)
The cell wall structure and behaviour of cysts of Argentinian strains of Haematococcus pluvialis were studied during cyst germination and zooid release. The cyst wall is composed of an outer primary wall, a trilaminar ...
Actions and roles of fsh in germinative cells
(2021-09-01)
Follicle stimulating hormone (FSH) is produced by the pituitary gland in a coordinated hypothalamic–pituitary–gonadal (HPG) axis event, plays important roles in reproduction and germ cell development during different phases ...
Description of the nucleolar activity and karyotype in germinative cell lines of Rhodnius domesticus (Triatominae, Heteroptera)
(2004-12-01)
The purpose of this work was to study the karyotype, spermatogenesis and nucleolar activity at meiosis, in the species Rhodnius domesticus (Heteroptera, Triatominae). The testicular tubules were cytologically prepared by ...
Description of the nucleolar activity and karyotype in germinative cell lines of Rhodnius domesticus (Triatominae, Heteroptera)
(2004-12-01)
The purpose of this work was to study the karyotype, spermatogenesis and nucleolar activity at meiosis, in the species Rhodnius domesticus (Heteroptera, Triatominae). The testicular tubules were cytologically prepared by ...
Use of fish residue as a substrate in lettuce germination
(Univ Estadual Centro-oeste, 2019-09-01)
The productive chain of the fish generates solid residues that are discarded in an inadequate way compromising the environment. Thus, the objective of this work was to evaluate the use of composting and silage elaborated ...
Histological aspects and structural characteristics of the testes of Dendropsophus minutus (Anura, Hylidae)
(Pergamon-Elsevier B.V. Ltd, 2008-12-01)
The present study describes morphological aspects of testes and presents a general characterization of the seminiferous elements of Dendropsophus minutus (Peters, 1872). Twenty samples of the species were used; after ...