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Studies on autonomous embryo formation from Salmon wheat egg cells

100%

Kumlehn J., Hahnel U., Altschmied L., Baumlein H.

Acta Biologica Cracoviensia. Series Botanica. Supplement

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2005

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tom 47

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nr 1

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Female gametophyte development of Leucanthemum ircutianum DC in unpolinated ovules cultured in vitro

75%

Karcz I., Kuta E.

Acta Biologica Cracoviensia. Series Botanica. Supplement

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2005

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tom 47

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nr 1

3

Cleared-ovule technique used for rapid access to early embryo development in Secale cereale x Zea mays crosses

63%

Ponitka A., Slusarkiewicz-Jarzina A.

Acta Biologica Cracoviensia. Series Botanica

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2004

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tom 46

133-137

Nine rye genotypes and pollen mixture of three maize cultivars were evaluated for embryo formation in rye x maize crosses. Based on cleared ovule preparations, the development of embryo and endosperm were observed at 48, 72 and 96 h after pollination. Embryos were formed in eight cross combinations (3.3% to 23.3% depending on rye genotype), but in five combinations ovules had both embryos and endosperm nuclei. In a sample of 344 cleared ovules, 28 (8.1%) had both embryo and endosperm, 15 (4.4%) had only embryo, and 13 (3.8%) had only endosperm.

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Secreted molecules and their role in embryo formation in plants

63%

Matthys-Rochon E.

Acta Biologica Cracoviensia. Series Botanica. Supplement

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2005

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tom 47

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nr 1

5

Secreted molecules and their role in embryo formation in plants: a mini review

63%

Matthys-Rochon E.

Acta Biologica Cracoviensia. Series Botanica

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2005

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tom 47

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nr 1

This short review emphasizes the importance of secreted molecules (peptides, proteins, arabinogalactan proteins, PR proteins, oligosaccharides) produced by cells and multicellular structures in culture media. Several of these molecules have also been identified in planta within the micro-environment in which the embryo and endosperm develop. Questions are raised about the parallel between in vitro systems (somatic and androgenetic) and in planta zygotic development. A view of exchanges between embryonic and nonembryonic multicellular structures in vitro is presented, and several facts about embryo and endosperm molecular interactions in planta are reported. Analysis of in vitro mechanisms may help in understanding what happens during zygotic embryogenesis.

6

Androgenic development: a fascinating embryo formation process

38%

Goralski G., Matthys-Rochon E., Vergne P., Przywara L.

Acta Biologica Cracoviensia. Series Botanica

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1999

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tom 41

The subject of this review is androgenesis as a process of embryo development from microspores and pollen. A number of factors govern androgenesis, but genotype, the stage of microspore development and in vitro culture conditions are the most important. We summarize some recent work employing a variety of experimental approaches to study this fascinating phenomenon of embryo formation.

Ograniczanie wyników

3 Acta Biologica Cracoviensia. Series Botanica

3 Acta Biologica Cracoviensia. Series Botanica. Supplement

3 Matthys-Rochon E.

1 Altschmied L.

1 Baumlein H.

1 Goralski G.

1 Hahnel U.

1 Karcz I.

1 Kumlehn J.

1 Kuta E.

1 Ponitka A.

1 Przywara L.

1 Slusarkiewicz-Jarzina A.

1 Vergne P.

4 2005

1 2004

1 1999

Studies on autonomous embryo formation from Salmon wheat egg cells

Female gametophyte development of Leucanthemum ircutianum DC in unpolinated ovules cultured in vitro

Cleared-ovule technique used for rapid access to early embryo development in Secale cereale x Zea mays crosses

Secreted molecules and their role in embryo formation in plants

Secreted molecules and their role in embryo formation in plants: a mini review

Androgenic development: a fascinating embryo formation process