NOTES ON THE DEVELOPMENT OF THE OVULE, EMBRYO SAC AND EMBRYO OFHYDNORA AFRICANA, THUNB
نویسندگان
چکیده
منابع مشابه
The Ovule and the Embryo Sac.
The plant life cycle is characterized by the alternation of generations between a diploid sporophyte and a haploid gametophyte. The sporophyte functions to produce spores, which then develop into gametophytes. The differentiated gametophytes in turn produce either the male gametes (sperm) or female gametes (egg cells). In contrast to lower plant species, in which the gametophyte is the dominant...
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Genetic analyses, particularly in Arabidopsis, have led to the identification of mutants that define different steps of ovule ontogeny, pollen stigma interaction, pollen tube growth, and fertilization. Isolation of the genes defined by these mutations promises to lead to a molecular understanding of these processes. Mutants have also been obtained in which processes that are normally triggered ...
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ژورنال
عنوان ژورنال: Transactions of the Royal Society of South Africa
سال: 1922
ISSN: 0035-919X,2154-0098
DOI: 10.1080/00359192209519260