1. The sporogonium is parasitic on the gametophyte generation.

2. The polar and egg nuclei of the female gametophyte are genetically identical.

3. The characters of gametophyte and the place of phylogenesis of M. platyphylla are more primordial than that of M. strigosa.

4. Antheridiogen promotes antheridium and male gametophyte formation. Thus, inter gametophytic mating is more frequent and more successful in those species with high antheridiogen production.

5. Two different early development modes were showed in gametophyte, and they are linear mode in P. yezoensis et al. and zygomorphic pattern in P. katadai.

6. Megasporogenesis and development of female gametophyte of Humulus scaadens (Lour. ) Merr. have been investigated with light microscope and some main characters have been compared with hemp.

7. Pear is gametophyte self - incompatibility and the representatives of one of the plants.

8. Besides, the characteristic about development of the gametophyte are analysed and discussed in this paper.

9. Apospory, aposporous The development of a gametophyte directly from a sporophyte without the occurrence of meiosis or spore formation.

10. The female gametophyte is reduced, but larger than in angiosperms; it is not autotrophic.

11. The gametophyte is derived from the product of a reduction division in the megaspore mother cell.

12. A female gametophyte of the female gametophyte in the sporangium ovule is the heart of the beads.

13. Male gametophyte of Cathaya.

14. Studies on molecular regulation of female gametophyte development were reviewed in terms of female gametophyte and ovule and integument development.

15. As the male gametophyte, pollen delivers sperm to the sac for fertilization by pollen - tube polarized growth.

16. The gametophyte and infant sporophyte morphological development of S. grevilleoides represented very different features on different culture substrata.

17. Optical studies were made on mega and microsporogenesis, the development of female and male gametophyte and starch dynamics in Panicum maximum through conventional paraffin section.

18. In vascular plants the diploid sporophyte is the dominant phase and in the ferns, for example, the gametophyte is a small prothallus .

19. Rhizoid A unicellular root like structure found in certain algae and in the gametophyte generation of the bryophytes and some ferns.

20. Effect of light on gravitropic response of rhizoid is decided by whether the gametophyte have green assimilative tissue or not.

21. Protonema ( pl . protonemata ) The young bryophyte gametophyte that develops following spore germination.

22. The process and protonema growth to development of the gametophyte are illustrated and taken microphotographs.

23. Light plays very important role in the growth of Gametophyte clone. Light time and intensity affect its growth directly.

24. The present paper firstly reports the development of microsporangium, male gametophyte, megasporogenesis , female gametophyte and embryogeny in Swertia erythrosticta Maxim.

25. Haplobiontic Describing life cycles in which only one type of somatic body is formed, which may be either haploid or diploid, i. e. either the sporophyte or the gametophyte generation is missing./gametophyte.html

26. Macrospore metrocyte of Pinus sylvestris var. mongolica developed to female gametophyte containing female gamete-egg by a series of changes.

27. It may be uni-or multicellular, and is found in the algae, lichens, bryophytes, and the gametophyte generation of the Filicinophyta, Lycophyta, and Sphenophyta.

28. So, it is necessary to study whether the sterility of male sterile lines with Ae. bicornis cytoplasm is gametophyte or sporophyte .

29. The formation of male gametes includes germ cell and vegetative cell differentiation and the occurrence of male gametophyte.