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Morphology and histochemistry of coalified Trigonocarpus grandis (Sydney Coalfield, Canada): Implications for the preservation, chemotaxonomy, and evolution of Carboniferous medullosalean ovules
(Elsevier Science, 2013-12-13)
From seven of the eight studied coalified ovules (Trigonocarpus grandis: Sydney Coalfield, Canada) sufficient material could be macerated (Schulze's process) for histochemical investigation. This encompasses histological ...
Ultrastructural study of the female gametophyte and the epistase in cabombaceae and nymphaeaceae
(Elsevier Gmbh, 2016)
Ultrastructural studies on the female gametophyte are restricted to species at relatively derived positions
in the angiosperm phylogenetic tree. Therefore, this topic remains mostly unknown for the early divergent lineages, ...
Embriologia de Nymphaea L. (Nymphaeales - Nymphaeaceae): implicações para a evolução inicial das angiospermas
(Universidade Estadual Paulista (UNESP), 2016)
Embriologia de Nymphaea L. (Nymphaeales - Nymphaeaceae): implicações para a evolução inicial das angiospermas
(Universidade Estadual Paulista (Unesp), 2016-02-16)
Compreender a diversidade das Nymphaeales, considerado como o segundo ramo da filogenia das angiospermas, é de considerável interesse como modelo da evolução inicial das angiospermas. Este trabalho objetivou investigar a ...
Ultrastructural study of the female gametophyte and the epistase in Cabombaceae and Nymphaeaceae
(Elsevier Gmbh, 2016-02)
Ultrastructural studies on the female gametophyte are restricted to species at relatively derived positionsin the angiosperm phylogenetic tree. Therefore, this topic remains mostly unknown for the early-divergent lineages, ...
Caracterização estrutural da embriologia em Tillandsia aeranthos (Lois.) L. B. SM. (Tillandsioideae-bromeliaceae)
(Universidade Federal de Santa MariaBRCiências BiológicasUFSMPrograma de Pós-Graduação em Agrobiologia, 2012-06-06)
Bromeliaceae owns a huge diversity of species in the Neotropical region, comprising about
3140 species, in which 551 consist of the genus Tillandsia. The article aims the descritption,
of the anther development and ovule ...
Contribution to characterization of skin field cancerization activity: morphometric, chromatin texture, proliferation, and apoptosis aspects
(Soc Brasileira Dermatologia, 2019-11-01)
Background: A skin field cancerization is a cutaneous area with subclinical changes resultant from chronic sun exposure, with a higher predisposition to development of pre-neoplastic and neoplastic lesions. So far, there ...