Vascular plants with a generation and the gametophyte sporophyte generation. Sporophyte is developed, with the roots, stems, leaves and other vegetative organs, and can produce sporangia with spores. Lower vascular plants, the gametophyte can live independently, but the shape of small, simple structure. To the plants, the gametophyte is more degraded, and only a few cells within the spore development. Sporophyte of vascular plants homozygous for the sexual reproduction or asexual reproduction of plants as part of the body or a single cell formation. Zygote through continuous cell division, the formation of embryo, differentiated from the root apical meristem and the shoot apical meristem (see apical meristem) and establish a body axis system. From the embryo develop into seedlings, and differentiation of a variety of organizational system. Sporophyte generation more or less of the sporangia, each sporangium can produce several or more of the spores. Produce spores, have been cell meiosis, chromosome half. Spores in the development of the gametes from the body, from the formation of archegonia and antheridia, or the formation of a more simplified style. Gametophyte produces eggs (female gametes) and sperm (male gametes). Egg and sperm become a zygote, which in turn start a new sporophyte generation.
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weiguan zhiwu Vascular plants vascular plant Vascular plants with a generation and the gametophyte sporophyte generation. Sporophyte is developed, with the roots, stems, leaves and other vegetative organs, and can produce sporangia with spores. Lower vascular plants, the gametophyte can live independently, but the shape of small, simple structure. To the plants, the gametophyte is more degraded, and only a few cells within the spore development. Sporophyte of vascular plants homozygous for the sexual reproduction or asexual reproduction of plants as part of the body or a single cell formation. Zygote through continuous cell division, the formation of embryo, differentiated from the root apical meristem and the shoot apical meristem (see apical meristem) and establish a body axis system. From the embryo develop into seedlings, and differentiation of a variety of organizational system. Sporophyte generation more or less of the sporangia, each sporangium can produce several or more of the spores. Produce spores, have been cell meiosis, chromosome half. Spores in the development of the gametes from the body, from the formation of archegonia and antheridia, or the formation of a more simplified style. Gametophyte produces eggs (female gametes) and sperm (male gametes). Egg and sperm become a zygote, which in turn start a new sporophyte generation. (Li Nyaya)
spermatophyte