microspore in a sentence
Examples
- Some of the cells grow into nutritive cells that supply nutrition for the microspores that form by meiotic division from the sporogenous cells.
- After the formation of the four microspores, which are contained by callose walls, the development of the pollen grain walls begins.
- Inside the sporocarp, the modified leaflets bear several "'microsporangia, each of which will produce many small male microspores.
- "' Microspores "'are land plant spores that develop into male gametophytes, whereas megaspores develop into female gametophytes.
- During meiosis, a diploid microspore mother cell undergoes two successive meiotic divisions to produce 4 haploid cells ( microspores or male gametes ).
- During meiosis, a diploid microspore mother cell undergoes two successive meiotic divisions to produce 4 haploid cells ( microspores or male gametes ).
- The " in vitro " methods include gynogenesis ( ovary and flower culture ) and androgenesis ( anther and microspore culture ).
- Microspores, which will divide to become pollen grains, are the " male " cells and are borne in the stamens ( or microsporophylls ).
- It is a dioecious species with male specimens that have microspores dispersed from cones of ovoid shaped terminals, 120 mm long and 80 mm wide.
- Within the stamen the microsporangium forms grains of "'pollen "', surrounded by the protective microspore, which forms the male gametophyte.