Results 21 to 30 of about 2,842 (213)
BMC Plant Biology, 2020 Background Hybridization and polyploidization are powerful evolutionary factors that are associated with manifold developmental changes in plants such as irregular progression of meiosis and sporogenesis.
Birthe H. Barke +3 more
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Plants, 2022 Pollen grains of flowering plants display a fascinating diversity of forms. The observed diversity is determined by the developmental mechanisms involved in the establishment of pollen morphological features.
Beatrice Albert +6 more
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Diversity, 2023 Annonaceae, comprising approximately 107 genera and 2400 species, is the largest family among early-divergent Magnoliales. Previous studies have concentrated on the binding mechanism that holds together the four members of tetrads in Annonaceae. However,
Bingxin Li +4 more
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Patterns of amyloplast distribution during microsporogenesis in Tradescantia, Impatiens and Larix
Acta Societatis Botanicorum Poloniae, 2014 During the meiotic prophase I in Tradescantia and Impatiens microsporocyte becomes temporarily asymmetric, with excentrically situated nucleus and all amyloplasts gathered in a dense group close to the nuclear envelope..
Bohdan Rodkiewicz +2 more
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Вавиловский журнал генетики и селекции, 2023 Wild and domesticated emmer (ВВАА, 2n = 28) are of significant interest for expanding the genetic diversity of common wheat as sources of a high protein and microelement grain content, resistance to many biotic and abiotic factors. Particular interest in
О. A. Orlovskaya +3 more
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Disturbances in microsporogenesis and pollen grain development in Gagea lutea (L.) Ker. Gaw.
Acta Agrobotanica, 2012 The meiotic division of microsporocytes and pollen grain development in Gagea lutea (L.) Ker.-Gaw. (Liliaceae) with fluorescence microscope (excitation light 400 nm) was observed after squashing the anthers in DAPI solution (fluorochrom dying DNA). Up to
Ewa Szczuka +4 more
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Microsporogenesis, microgametogenesis, and pollen grain morphology of Fouquieria fasciculata (Fouquieriaceae, Ericales) [PDF]
, 2023 Background: Embryology of the male reproductive structures in Fouquieriaceae has been poorly studied. The ontogeny of the anther wall, microsporogenesis, microgametogenesis, and pollen morphology were described in detail for Fouquieria fasciculata ...
Fabiola Soto-Trejo +2 more
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Chondriokinesis during microsporogenesis in plants [PDF]
Planta, 2017 Chondriokinesis represents a highly orchestrated process of organelle rearrangement in all dividing plant and animal cells, ensuring a proper course of karyokinesis and cytokinesis. This process plays a key role in male gametophyte formation. Chondriokinesis is a regular rearrangement of cell organelles, assuring their regular inheritance, during both ...
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Acta Societatis Botanicorum Poloniae, 2014 The variations of the total protein content and protein synthesis were analyzed in successive stages of microsporogenesis in Larix europaea L. Pure fractions of microsporocytes containing the cells in successive phases of meiosis and fractions of the ...
Wiesława B. Chwirot +1 more
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Journal of Agricultural Sciences, 2005 Bu çalışmada doğal bir melez olan Vitis vinifera L. cv. Karagevrek üzüm çeşidi anterlerindeki, polen ana hücrelerinin mayoz bölünmesinde görülen anormallikler ışık mikroskobunda incelenmiştir. Bu bitkide anter çeperi epidermis, endotesyum, 1-2 sıralı ara
Gönül Algan +2 more
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