Sievia Coimbra

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Amaranthus hypochondriacus ovules are of the crassinucellate type, having several layers of nucellus cells between the micropyle and the embryo sac through which pollen tubes have to penetrate. The ultrastructural features of the micropylar nucellus cells appear to reflect cells with high metabolic activity. With the monoclonal antibodies MAC207 and JIM8(More)
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