Results 31 to 40 of about 284,770 (295)
The Embryo Sac and Embryo of Gnetum gnemon [PDF]
Botanical Gazette, 1908 1. The "antipodal tissue" described by Lotsy as occurring in Gnetum Gnemon at the fertilization stage is a sharply differentiated nutritive tissue developed in the nucellus beneath the embryo sac, which at this stage contains only free nuclei, as described for other species of Gnetum. 2.
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A pattern of unique embryogenesis occurring via apomixis in Carya cathayensis
Biologia Plantarum, 2012 Apomixis represents an alteration of classical sexual plant reproduction to produce seeds that have essentially clonal embryos. In this report, hickory (Carya cathayensis Sarg.), which is an important oil tree, is identified as a new apomictic species ...
B. Zhang +5 more
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Feto-maternal cholesterol transport regulated by β-Klotho–FGF15 axis is essential for fetal growth
Life Science Alliance, 2023 Inter-tissue communication between β-Klotho in the yolk sac and fibroblast growth factor 15 in the embryo is required to regulate cholesterol supply from maternal blood to embryo through the yolk sac.
Kanako Kobayashi +4 more
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Annals of Botany, 1901 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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The Embryo Sac and Embryo of Striga lutea [PDF]
Botanical Gazette, 1915 1. Striga lutea is a semi-parasitic annual belonging to the Rhinantheae-Gerardieae group of the Scrophulariaceae. 2. The ovary is of the ordinary bilocular scrophulariaceous type, and the ovules are anatropous, with one integument. 3. The megaspore mother cell arises directly from a single subepidermal cell, which gives rise to a row of four megaspores,
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Huanan Nongye Daxue xuebaoObjectiveTo elucidate the mechanism underlying female sterility in the new Lagerstroemia speciosa cultivar ‘Zichan’, and to provide a theoretical basis for the utilization and innovation of Lagerstroemia germplasm resources.
Ruoyong YIN +6 more
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An in vitro stem cell model of human epiblast and yolk sac interaction
eLife, 2021 Human embryogenesis entails complex signalling interactions between embryonic and extra-embryonic cells. However, how extra-embryonic cells direct morphogenesis within the human embryo remains largely unknown due to a lack of relevant stem cell models ...
Kirsty ML Mackinlay +10 more
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The Embryo-Sac and Embryo of certain Penaeaceae
Annals of Botany, 1909 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Light microscopical study of endosperm formation in Brassica napus L.
Acta Societatis Botanicorum Poloniae, 2014 The cellularization of the endosperm of Brassica napus was investigated with light microscopy after embedment in Technovit 7100. The microtubular cytoskeleton was visualized by immunofluorescence techniques after embedment in butyl methyl metacrylate ...
A. A.M. van Lammeren +3 more
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Embryo donation parents' attitudes towards donors : comparison with adoption [PDF]
, 2008 BACKGROUND: Embryo donation produces a family structure where neither rearing parent is genetically related to the child, as in adoption. It is not known how embryo donation parents view the donors compared with how adoptive parents view the birth ...
MacCallum, Fiona
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