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SDS-PAGE protein profiles of developing seeds of Abies concolor

100%

Kormutak A., Libiakova G., Salaj J., Libantova J., Moravcikova J., Vookova B.

Acta Biologica Cracoviensia. Series Botanica. Supplement

2005

tom 47

nr 1

Study of ovule and megagametophyte development in four species of subtribe Phaseolinae [Leguminosae]

67%

Soverna A. F., Galati B., Hoc P.

Acta Biologica Cracoviensia. Series Botanica

2003

tom 45

nr 2

Ovule development, megasporogenesis and megagametogenesis were studied in Macroptilium bracteatum, Phaseolus augusti, P. vulgaris var. aborigineus and Vigna adenantha to elucidate their taxonomic position. The ovule is anacampylotropous, bitegmic and crassinucellate. Megaspore tetrads are linear in M. bracteatum and T-shaped in the other three species. In all species the chalazal megaspore produces an embryo sac of Polygonum type. The results are discussed in relation to the current taxonomic classification. Our findings support the position of Macroptilium as a separate genus and the inclusion of V. adenantha in the genus Phaseolus. This is the first report of the use of embryological characters to solve intergeneric relationships of the Phaseolus-Vigna-Macroptilium neotropical complex, pointing out the method’s usefulness.

Translocation pathways for metabolites in developing ovules of Gentiana cruciata L., Gymnadenia conopsea [L.] R.Br., Gagea stipitata Merklin and Luzula pedemontana Boiss.et Reut.

67%

Shamrov I. I.

Acta Biologica Cracoviensia. Series Botanica

2000

tom 42

nr 1

The metabolites in the ovule come from the receptacle, ovary wall and placenta. They are accumulated in the chalaza and then translocated in reproductive and somatic structures via a system of specialized tissues. The hypostase is of great importance because it lies at the boundary of the chalaza with the nucellus and integuments, and contacts the vascular bundle. In the megagametophyte, the cell walls, which have many outgrowths, receive metabolites from the hypostase via podium and postament tissues. Histochemical data on accumulation of proteins, polysaccharides, lignin and tannins in tissues during ovule and seed development are presented. The dynamics of these substances and the character of metabolism in tissues are suggested as indicators of metabolite flow.

Ograniczanie wyników

2 Acta Biologica Cracoviensia. Series Botanica

1 Acta Biologica Cracoviensia. Series Botanica. Supplement

1 Galati B.

1 Hoc P.

1 Kormutak A.

1 Libantova J.

1 Libiakova G.

1 Moravcikova J.

1 Salaj J.

1 Shamrov I. I.

1 Soverna A. F.

1 Vookova B.

1 2005

1 2003

1 2000

Wyniki wyszukiwania

SDS-PAGE protein profiles of developing seeds of Abies concolor

Study of ovule and megagametophyte development in four species of subtribe Phaseolinae [Leguminosae]

Translocation pathways for metabolites in developing ovules of Gentiana cruciata L., Gymnadenia conopsea [L.] R.Br., Gagea stipitata Merklin and Luzula pedemontana Boiss.et Reut.