Results 191 to 200 of about 11,465 (216)
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Microspore development in cultured maize anthers
Plant Cell Reports, 1988The present study follows in vivo and in vitro microspore development utilizing an anther culture-responsive maize genotype (Pa91×FR16) and a DNA-specific fluorescent dye (mithramycin). Cultured anthers were sampled at various times and scored for abnormal microspore divisions, multicellular masses, and embryo-like structures. The frequency of abnormal
S M, Pescitelli, J F, Petolino
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1994
The maize pollen grain represents the beginning of a short-lived gametophytic phase during which the two sperm are delivered to the embryo sac prior to fertilization. Although this stage of the life cycle normally consists of only a few cell divisions, under certain experimental conditions, gametophytes can be induced to undergo an altered development,
J. F. Petolino, A. D. Genovesi
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The maize pollen grain represents the beginning of a short-lived gametophytic phase during which the two sperm are delivered to the embryo sac prior to fertilization. Although this stage of the life cycle normally consists of only a few cell divisions, under certain experimental conditions, gametophytes can be induced to undergo an altered development,
J. F. Petolino, A. D. Genovesi
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Heterozygous microspore-derived plants in rye
Theoretical and Applied Genetics, 1976In a particular experimental series involving anthers from F(1) hybrid plants of Secale cereale L., it was possible to induce the formation of 68 microspore-derived plantlets of which 61 were albinos and 7 green. 6 of the albino plants were haploid, whereas most of the others were diploid. All green rye plants were directly diploid and, after extensive
G, Wenzel, F, Hoffmann, E, Thomas
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Albinism in Microspore Culture
2008Frequent formation of albino plants from in vitro cultured microspores is a particular problem for chromosome doubled haploid production in cereals and grasses. The phenomenon was first thought to be associated with maternal inheritance of plastids visualized by large deletions and rearrangements of plastid genomes in albino plants.
A. M. Torp, S. B. Andersen
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Microspore Derived Embryogenesis
1992The period of cellular development that encompasses meiosis and microsporogenesis is of key scientific and commercial interest, but the complex cytological organisation of the anther and the rapid pace of differentiation has made it difficult to investigate by standard molecular methodology.
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Chemical signaling in plant microspore cells
Biology Bulletin, 2006Chemical signal transduction from the cell surface to organelles was studied in unicellular vegetative (Equisetum arvense) and generative (Hippeastrum hybridum pollen) microspores of plants. Neurotransmitters acetylcholine, dopamine, and serotonin, their agonists and antagonists, Na+, K+, and Ca2+ channel blockers, as well as forskolin and theophylline
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2003
Rye (Secale cereale L.) is an important cereal in Europe, with approximately 90% of global rye production concentrated in this area. In subtropical low latitude areas, rye is grown primarily as a late-fall, early-spring forage and, secondarily, for grain.
S. Pulli, Y.-D. Guo
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Rye (Secale cereale L.) is an important cereal in Europe, with approximately 90% of global rye production concentrated in this area. In subtropical low latitude areas, rye is grown primarily as a late-fall, early-spring forage and, secondarily, for grain.
S. Pulli, Y.-D. Guo
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The microspore genus Simozonotriletes
1958(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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The microspore: A haploid multipurpose cell
2001Abstract The microspore is at the centre of a variety of topics in modern plant science and breeding. Isolated microspore cultures have the remarkable quality of resembling the alternation of generations in the life cycle of angiosperms, i.e. the change between the diploid sporophytec and the haploid gametophytec generation.
Touraev, Alisher +2 more
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Genesis of microspore-derived triploid petunias
Theoretical and Applied Genetics, 1982A total of 61 microspore-derived plants of Petunia parodii were grown to maturity revealing a predominent population of triploids, 80.3%. Cytological investigations, together with the evidence from microfluorimetry, suggest that the origin of these triploids was due to the fusion of interphase nuclei in two different pathways.
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