ABSTRACT – (Ovule ontogenesis and megasporogenesis in Adesmia latifolia (Spreng.) Vog. (Leguminosae-Papilionoideae)). The ovule ontogenesis and the megasporogenesis events were studied under bright field, fluorescence and scanning electron microscopy. The primordium is 3-zonate and gives rise to a hemianatropous, bitegmic and crassinucellate ovule. The archesporium may consist of one or more archesporial cells, but only one undergoes meiosis, forming a linear tetrad. Normally, only a single megaspore is functional in the chalazal position, but occasionally two functional chalazal megaspores arise. The present study provides additional information on embryological characters in the Adesmieae tribe and discusses their taxonomic significance t...
Magonia pubescens A.St.-Hil. (Dodonaeaeae, Sapindaceae) is a monoecious species exhibiting two flora...
Adesmia tristis é uma espécie endêmica do sul do Brasil e muito promissora como forrageira em campos...
Orientador: Hermogenes de Freitas Leitão FilhoTese (doutorado) - Universidade Estadual de Campinas. ...
The ovule ontogenesis and the megasporogenesis events were studied under bright field, fluorescence ...
The ovule ontogenesis and the megasporogenesis events were studied under bright field, fluorescence ...
The female gametophyte has a monosporic origin and a Polygonum type development. The female gametoph...
The female gametophyte has a monosporic origin and a Polygonum type development. The female gametoph...
The female gametophyte has a monosporic origin and a Polygonum type development. The female gametoph...
Abstract. Floral organogenesis of six Brazilian species of Adesmia DC. was studied by scanning elect...
The ovule of Tabebuia pulcherrima is anatropous, unitegmic and tenuinucellate. The nucellus shows a ...
Meiotic behavior in Adesmia DC. is described for the first time. The study encompassed twelve popula...
Macroptilium arenarium (Bacigalupo)S.I.Drewes & Palacios produces two floral morphs, aerial chasmoga...
Ovule and female gametophyte development in C. argutus, L. divaricata and T. semitriloba was analyze...
Os óvulos de Tabebuia pulcherrima são anátropos, unitégmicos e tenuinucelados. Os nucelos apresentam...
Foram estudadas 15 espécies do gênero Adesmia DC. (Leguminosae), quanto ao modo de reprodução. Em se...
Magonia pubescens A.St.-Hil. (Dodonaeaeae, Sapindaceae) is a monoecious species exhibiting two flora...
Adesmia tristis é uma espécie endêmica do sul do Brasil e muito promissora como forrageira em campos...
Orientador: Hermogenes de Freitas Leitão FilhoTese (doutorado) - Universidade Estadual de Campinas. ...
The ovule ontogenesis and the megasporogenesis events were studied under bright field, fluorescence ...
The ovule ontogenesis and the megasporogenesis events were studied under bright field, fluorescence ...
The female gametophyte has a monosporic origin and a Polygonum type development. The female gametoph...
The female gametophyte has a monosporic origin and a Polygonum type development. The female gametoph...
The female gametophyte has a monosporic origin and a Polygonum type development. The female gametoph...
Abstract. Floral organogenesis of six Brazilian species of Adesmia DC. was studied by scanning elect...
The ovule of Tabebuia pulcherrima is anatropous, unitegmic and tenuinucellate. The nucellus shows a ...
Meiotic behavior in Adesmia DC. is described for the first time. The study encompassed twelve popula...
Macroptilium arenarium (Bacigalupo)S.I.Drewes & Palacios produces two floral morphs, aerial chasmoga...
Ovule and female gametophyte development in C. argutus, L. divaricata and T. semitriloba was analyze...
Os óvulos de Tabebuia pulcherrima são anátropos, unitégmicos e tenuinucelados. Os nucelos apresentam...
Foram estudadas 15 espécies do gênero Adesmia DC. (Leguminosae), quanto ao modo de reprodução. Em se...
Magonia pubescens A.St.-Hil. (Dodonaeaeae, Sapindaceae) is a monoecious species exhibiting two flora...
Adesmia tristis é uma espécie endêmica do sul do Brasil e muito promissora como forrageira em campos...
Orientador: Hermogenes de Freitas Leitão FilhoTese (doutorado) - Universidade Estadual de Campinas. ...