Abnormal embryos in mature seeds of Chondrilla juncea L.

• Autorzy: Koscinska-Pajak M.
• Języki publikacji: EN

Abstrakty

EN

Observations were made of 200 embryos prepared from ripe achenes of Chondrilla juncea collected after open pollination. The majority of seeds (60%) contained a single embryo with two regularly formed cotyledons. Embryos with three more or less equal cotyledons were observed in 5% of the seeds, and twins were found in 6%. Some (20%) contained embryos with split cotyledons and a regularly developed radicle, and others had both the cotyledons and radicle split. Embryo sacs (ESs) with delayed globular embryos surrounded by degenerating endosperm were dissected from 9% of the seeds whose color and size indicated that they should be fully developed.

Słowa kluczowe

EN

embryo sac; cotyledon; abnormal embryo; Australian plant; triploid plant; mature seed; pleiocotyle; endosperm; parthenogenesis; Chondrilla juncea; seed

• Wydawca: -
• Czasopismo: Acta Biologica Cracoviensia. Series Botanica
• Rocznik: 1999
• Tom: 41
• Opis fizyczny: p.193-196,fig.

Twórcy

autor

Koscinska-Pajak M.

• Jagiellonian University, Grodzka 52, 31-044 Cracow, Poland

Bibliografia

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