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Microsporogenesis in Monocotyledons [PDF]
Annals of Botany, 1999 This paper critically reviews the distribution of microsporogenesis types in relation to recent concepts in monocot systematics. Two basic types of microsporogenesis are generally recognized: successive and simultaneous, although intermediates occur.
Carol A Furness +2 more
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Forests, 2017 In order to induce unreduced pollens, microsporogenesis and male flower bud (MFB) development were compared in rubber tree clone RRIM 600. We observed strong asynchronism in different MFBs in an inflorescence.
Xiangyang Kang, Kang Xiang-Yang
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Phylogenetic comparative analysis of microsporogenesis in angiosperms with a focus on monocots
American Journal of Botany, 2008 International audienceThis paper presents the first broad overview of three main features of microsporogenesis (male meiosis) in angiosperms: cytokinesis (cell division), intersporal wall formation, and tetrad form.
Sophie Nadot +2 more
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Evolution of Microsporogenesis in Angiosperms
International Journal of Plant Sciences, 2002Microsporogenesis is highly labile in early‐branching angiosperms, i.e., those with mostly sulcate pollen, compared with the tricolpate and tricolpate‐derived eudicots. New records of microsporogenesis in basal angiosperms (19 taxa were examined), together with a review of the literature, demonstrate that the existing typology has been too strictly ...
Carol A Furness, Paula J Rudall
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Cytomixis in the cereal (Gramineae) microsporogenesis
Protoplasma, 2015The specific features in behavior of the nuclei and chromatin migrating through cytomictic channels as well as in formation of micronuclei in the cereal microsporogenesis have been studied. Immunofluorescence microscopy has allowed for demonstration that the tubulin cytoskeleton does not play a significant role in the intercellular migration of nuclei.
Yuri V, Sidorchuk +2 more
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Molecular control of microsporogenesis in Arabidopsis
Current Opinion in Plant Biology, 2011Microsporogenesis is essential for male fertility and requires both the formation of somatic and reproductive cells in the anther and meiotic segregation of homologous chromosomes. Molecular genetic studies have uncovered signaling molecules and transcription factors that play crucial roles in determining the anther cell types and in controlling gene ...
Fang, Chang +3 more
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Grana, 2009 Simultaneous microsporogenesis is described for the first time in a grass, Streptochaeta spicata Schrad., a tropical Brazilian species that belongs in the early-divergent subfamily Anomochlooideae.
Maria Das Graças Sajo +2 more
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Photoinduced Microsporogenesis in Rice
Botanical Gazette, 1974Fourteen-day-old plants of a photosensitive winter variety of rice, cv. BAM-3, were subjected to photoinductive cycles of 8-hr light and 16-hr darkness for 1, 2, 3, 4, 5 weeks, or until anthesis. Short-day treatment for 1 and 2 weeks caused vacuolation in the cytoplasm of a few of the sporocytes.
G. Misra, P. A. Khan
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Microsporogenesis in the Cucurbitaceae
Botanical Gazette, 19301. Darkly staining granules are present among the bivalent chromosomes in late diakinesis in all members of Cucurbita, but are absent in Citrullus, Luffa, and Cucumis. 2. Cucurbita pepo and C. maxima each has twenty bivalent chromosomes. 3. Citrullus vulgaris has eleven bivalent chromosomes; Luffa cylindrica, eleven; Cucumis melo, twelve.
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Phenological measurements of microsporogenesis in trees
Tree Physiology, 1995The value of two heat sum methods, one linear (degree days > 5 degrees C) and the other curvilinear (period units), were assessed together with calendar days as predictors of the duration of microsporogenesis in seven natural stands of Norway spruce (Picea abies (L.) Karst.) and eleven natural stands of Scots pine (Pinus sylvestris L ...
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