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Now showing items 1-8 of 8
Two novel reports of semidry stigmatic surface in Asteraceae
(Flora, 2011-01-01) [Artigo]
Research documents related to the morphology and function of style branches and stigmatic surface of Asteraceae are still rather few, and the literature reports are thus controversial. We report in the present study that ...
Estruturas secretoras de mucilagem em Hibiscus pernambucensis Arruda (Malvaceae): distribuição, caracterização morfoanatômica e histoquímica
(Acta Botanica Brasilica, 2011-12-01) [Artigo]
No presente trabalho foram estudadas as estruturas secretoras de mucilagem de Hibiscus pernambucensis aos microscópios de luz e de varredura. Conhecida como guaxima-do-mangue e algodão-do-brejo, é espécie nativa encontrada ...
Cellular markers indicative of ozone stress on bioindicator plants growing in a tropical environment
(Ecological Indicators, 2016-08-01) [Artigo]
Ozone (0(3)) is an oxidative pollutant that causes visible foliar symptoms in sensitive plants. Importantly, cellular markers induced by physiological alterations, including oxidative burst (OB), hypersensitive response-like ...
Autophagy is associated with male sterility in pistillate flowers of Maytenus obtusifolia (Celastraceae)
(Australian Journal Of Botany, 2018-01-01) [Artigo]
Programmed cell death (PCD) is defined as a sequence of genetically regulated events leading to controlled and organised cellular degradation. It plays a vital role in plant development; however, little is known about the ...
A New Species of Eriosema (Leguminosae, Papilionoideae, Phaseoleae) from Mato Grosso do Sul, Brazil, with a Secretory Structure Novel to the Genus
(Phytotaxa, 2016-06-01) [Artigo]
Eriosema grearii, a new species for the genus (Leguminosae, Papilionoideae, Phaseoleae, Cajaninae), is described and illustrated. Similar to E. heterophyllum, it differs from it morphologically by the free (vs. joined) ...
Anatomia do talo de Canoparmelia texana (Parmeliaceae, Ascomycota liquenizados)
(Biota Neotropica, 2010-07-01) [Artigo]
Conventional techniques for structural studies under light microscope and scanning electron microscope were employed to describe the histology of thallus in Canoparmelia texana, a lichen with wide distribution in open ...
Pollen grain development and male sterility in the perfect flowers of Maytenus obtusifolia Mart. (Celastraceae)
(Protoplasma, 2019-05-01) [Artigo]
Perfect flowers of Maytenus obtusifolia have partial sterility of pollen grains, resulting in collapsed and developed free microspores. However, the cellular events resulting in partial male sterility have not been determined. ...
REVISITING THE LEAFLET SECRETORY STRUCTURES IN SUBTRIBE CAJANINAE BENTH. (LEGUMINOSAE, PHASEOLEAE)
(International Journal Of Plant Sciences, 2018-11-01) [Artigo]
Premise of research. Cajaninae is the most speciose subtribe of the legume tribe Phaseoleae, comprising ca. 490 species distributed in 10 genera. The group is characterized by peculiar secretory structures, such as ...