MEMBERS of the family Loranthaceæ are characterized by many abnormal features in the development and organisation of the embryo sac, endosperm and embryo 1,2,3. In June 1949, one of us (P. M.) ...

This is a preview. Log in through your library . Abstract Embryo sac development has been investigated in unpollinated, cross pollinated and gibberellic acid (GA₃ ) treated flowers of Pyrus communis L ...

SEVEN ‘Golden Delicious’ apple clones propagated from buds irradiated at 5,000 r. in a cobalt-60 source were selected for high, intermediate, and low pollen abortion. Pollen abortion was 4.9 per cent ...

Microscopy image of a PGA at day 8 showing the early tissues supporting the embryo, including the amniotic sac and the yolk sac-like structures, surrounded by (extra-embryonic) mesoderm tissue.

Scientists have discovered that a plant hormone called auxin is responsible for development of the egg cell in a plant's embryo sac. In unraveling this fundamental issue in plant biology, the work ...

A gradient (red) in the concentration of auxin, a plant hormone, determines that only one of the eight undifferentiated nuclei in a plant's embryo sac will become an egg. (In this image, a large ...

A gradient (red) in the concentration of the plant hormone auxin determines that only one of the eight nuclei in a plant's embryo sac will become an egg. (The blue island in the image is a cell ...