Results 261 to 270 of about 15,023,284 (301)
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On the Embryo-sac and Development of Gymnadenia Conopsea
Journal of Cell Science, 1880ABSTRACT The hitherto received account of the origin, mode of formation, and homologies of the embryo-sac in Angiosperms was based on the researches of Hofmeister,1 for the most part, and may be summed up to the following effect :—A single cell situated in the apical part of the nucleus, and usually the foremost of an axial row, enlarges,
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Development of the Embryo Sac, Embryo and Endosperm in Helixanthera ligustrina (Wall.) Dans.
Nature, 1950MEMBERS of the family Loranthaceae are characterized by many abnormal features in the development and organisation of the embryo sac, endosperm and embryo1,2,3. In June 1949, one of us (P. M.) collected some material of Helixanthera lingustrina from Katmandu, Nepal, during a visit to that place as a member of a scientific and cultural mission sponsored
P, MAHESHWARI, B M, JOHRI
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The embryo sac development of Manfreda elongata (Asparagaceae)
Flora, 2019Abstract Manfreda Salisb. belongs to the Asparagaceae family and is a genus of a high ornamental potential due to the beauty and varied morphology of its leaves, as well as it provides flowers of different species throughout the year. In spite of its economic relevance, little is known about its sexual reproduction.
Ángel Martín Barranco-Guzmán +2 more
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Development of Angiosperm Embryo Sacs with Non-Haploid Eggs
American Journal of Botany, 1951DURING THE LAST DECADE there have been published several reviews of the types of development of embryo sacs with haploid eggs in sexual plants (Maheshwari, 1948). A few have dealt with the development of embryo sacs with non-haploid, usually diploid, eggs (Fagerlind, 1946; Battaglia, 1946b; Gustafsson, 1946-1947).
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Naa50 regulates ovule and embryo sac development in Arabidopsis
Plant Cell ReportsN-terminal acetyltransferase Naa50 plays an important regulatory role in ovule development by indirectly promoting cell wall invertase 2/4 expression.
Jinlin Feng, Jiachuan Tian, Weihong Cao
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Megasporogenesis and Development of the Embryo Sac of Allium cernuum
Botanical Gazette, 19461. The megasporangium of Allium cernuum is essentially like that of Lilium. 2. The archesporium arises directly from a hypodermal cell about 3 or 4 days before the flowers emerge from the bud. 3. The megagametophyte is formed from the chalazal dyad. The micropylar dyad disintegrates without further division. 4.
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Macrosporogenesis and Development of the Embryo Sac of Lilium Henryi
Botanical Gazette, 19351. The egg is removed from the macrospore mother cell of Lilium henryi by four divisions instead of three as has usually been described for members of this genus. 2. The nucleus of the macrospore mother cell and its daughter nuclei pass through the heterotypic and homoeotypic divisions respectively without cell division, so that the embryo sac is 4 ...
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The Genetics of Embryo-Sac Development
Annals of Botany, 1941C. D. DARLINGTON, L. LA COUR
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