Megasporogenesis and megagametophyte development in ten species of Oxalis
Ovule morphology, megasporogenesis and megagametogenesis of ten species of Oxalis were examined. The ovule is anatropous, bitegmic and the integuments form a zig-zag micropyle. The type of female gametophyte development is variable in the studied species. The majority of them have a monosporic Polyg...
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2011Rosenfeldt.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
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| 100 | 1 | |9 66971 |a Rosenfeldt, Sonia | |
| 245 | 0 | 0 | |a Megasporogenesis and megagametophyte development in ten species of Oxalis |
| 520 | |a Ovule morphology, megasporogenesis and megagametogenesis of ten species of Oxalis were examined. The ovule is anatropous, bitegmic and the integuments form a zig-zag micropyle. The type of female gametophyte development is variable in the studied species. The majority of them have a monosporic Polygonum-type female gametophyte. Two of the studied species show binucleate dyad members, so they have a bisporic Allium-type female gametophyte. Only O. articulata follows tetrasporic Adoxa-type development of the megagametophyte. This is the first report of a tetrasporic female gametophyte in Oxalidaceae. The endosperm is nuclear, and development of the embryo corresponds to the Solanad type. | ||
| 653 | 0 | |a ADOXA | |
| 653 | 0 | |a ALLIUM | |
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| 653 | 0 | |a POLYGONUM | |
| 700 | 1 | |9 37472 |a Galati, Beatriz Gloria | |
| 773 | |t Annales Botanici Fennici |g Vol.48, no.3 (2011), p.263-271 | ||
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| 900 | |a ^aRosenfeldt^bS.^tDepartamento de Biodiversidad y BiologÃa Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón II, DBBE, 4to piso C1428EHA Ciudad, Universitaria, Buenos Aires, Argentina | ||
| 900 | |a ^aGalati^bB.G.^tFacultad de AgronomÃa, Universidad de Buenos Aires, Av. San MartÃn 4453, C1417DSE Buenos Aires, Argentina | ||
| 900 | |a ^tAnnales Botanici Fennici^cAnn. Bot. Fenn. | ||
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| 900 | |a OXALIS ARTICULATA | ||
| 900 | |a POLYGONUM | ||
| 900 | |a Ovule morphology, megasporogenesis and megagametogenesis of ten species of Oxalis were examined. The ovule is anatropous, bitegmic and the integuments form a zig-zag micropyle. The type of female gametophyte development is variable in the studied species. The majority of them have a monosporic Polygonum-type female gametophyte. Two of the studied species show binucleate dyad members, so they have a bisporic Allium-type female gametophyte. Only O. articulata follows tetrasporic Adoxa-type development of the megagametophyte. This is the first report of a tetrasporic female gametophyte in Oxalidaceae. The endosperm is nuclear, and development of the embryo corresponds to the Solanad type. | ||
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