microsporogenesis


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Related to microsporogenesis: megasporogenesis

microsporogenesis

[‚mī·krə‚spȯr·ə′jen·ə·səs]
(botany)
In angiosperms, formation of microspores and production of the male gametophyte.
References in periodicals archive ?
Riggs, "Maturation and secretion of a serine proteinase is associated with events of late microsporogenesis," The Plant Journal, vol.
Para estudiar la microsporogenesis, se obtuvieron anteras inmaduras a partir de botones florales jovenes fijados directamente en el campo durante las colecciones botanicas.
We first observed the archesporial stage of microsporogenesis in buds in the middle April (Fig.
Anther development, microsporogenesis and microgametogenesis in Heliconia (Heliconiaceae, Zingiberales).
A study of microsporogenesis and poleen morphology in crataegus babakhanloui (Rosaceae).
Multiple spindles and cellularization during microsporogenesis in an artificially induced tetraploid accession of Brachiaria ruziziensis (Gramineae).
Besides new chromosome reports and additional cytotypes, in some of the species meiosis was abnormal and was characterized by the presence of multivalents and/or univalents, impaired synapsis, cytomixis, and its associated meiotic aberrations such as laggards and bridges, chromatin stickiness, pycnotic chromatin, irregular distribution of chromosomes, and micronuclei at telophases/sporads consequently leading to abnormal microsporogenesis and variable amount of pollen sterility (Figures 5(h)-5(p)).
Diversos estudios sugieren que la formacion de plantas albinas es debida a alteraciones de los plastidios durante la microsporogenesis in vivo y que el albinismo esta relacionado con el deterioro del ADN de los cloroplastos.
In order to contribute to a better understanding of the species, this study reports the chromosome number and the abnormalities of the meiotic behavior through the analysis of the microsporogenesis A.
Abnormal timing of cytokinesis in microsporogenesis in Brachiaria humidicola (Poaceae: Paniceae).
En las plantas androesteriles citoplasmaticas el desarrollo de la antera puede estar muy fuertemente afectado, o como en algunos mutantes CMS (Cytoplasmic Male Sterility), las anteras pueden desarrollarse normalmente, pero la microsporogenesis se detiene durante la meiosis o mucho despues.