Advertisement

Chinese Journal of Oceanology and Limnology

, Volume 23, Issue 4, pp 414–417 | Cite as

Observation of female gamete (Carpogonia) germination ofPorphyra yezoensis andP. oligospermatangia

  • Mei Junxue
  • Eei Xiuigeng
  • Duan Delin
Biology

Abstract

Several papers have reported that part or whole leafy thallus seemingly consisting of zygotospores can give rise to both blades and conchocelis in the same culture ofPorphyra. Study on samples of wild and cultivatedPorphyra yezoensis andP. oligospermatangia were conducted to clarify the origination of the young blades in the culture. It is confirmed that single cells on the blade of both species, which normally intermixed with zygotospores, germinated into young blades. TEM and SEM observation has shown that the single cells ofPorphyra yezoensis had typical features of female gamete (carpogonia) but archeospore. Therefore, the female gametes are responsible in developing leafy thalli.

Key words

female gamete (carpogonia) germination archeospore Porphyra yezoensis Porphyra oligospermatangia 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Brawley, S. H. and L. E. Johnson, 1992. Gametogenesis, gametes and zygotes: an ecological perspective on sexual reproduction in the algae.Br. Phycol. J. 27: 233–252.CrossRefGoogle Scholar
  2. Drew, K. M. 1949.Conchocelis-phase in the life history ofPorphyra umbilicalis(L.) Kuetz.Nature 164: 748–751.CrossRefGoogle Scholar
  3. Guiry, M. D., 1990. Sporangia and spores.In: Cole, K. M. and Sheath, R. G. ed., Biology of the Red Algae. Cambridge University Press, New York, p. 347–376.Google Scholar
  4. Hawkes, M. W., 1978. Sexual reproduction inPorphyra gardneri (Smith et Hollenberg) Hawkes (Bangiales, Rhodophyta).Phycologia 17(3): 329–353.Google Scholar
  5. Hawkes, M. W., 1980. Ultrastructure characteristics of monospore formation inPorphyra gardneri (Rhodophyta).J. Phycol. 16: 192–196.CrossRefGoogle Scholar
  6. Kunieda, H., 1939. On the life history ofPorphyra tenera Kjellm.Journ. Coll. Agric. Tokyo Imp. Univ. 14(5): 377–405.Google Scholar
  7. Mei, J. X., S. D. Shen, M. Jiang et al., 2003. Ultrastructure of single cells, callus-like and monospore-like cells inPorphyra yezoensis Ueda on semi-solid culture medium.Chin. J. Oceanol. Limnol. 21(2): 166–170.CrossRefGoogle Scholar
  8. Nelson, W. A., J. Brodie and M. D. Guiry, 1999. Terminology used to describe reproduction and life history stages in the genusPorphyra (Bangiales, Rhodophyta).J. Appl. Phycol. 11: 407–410.CrossRefGoogle Scholar
  9. Notoya, M., 1997. Diversity of life history in the genusPorphyra.In: Miyata, M., Notoya, M. ed., Present and Future on Biology of Porphyra.Nat. Hist. Res. 3(Special Issue): 47–56.Google Scholar
  10. Pueschel, C. M., 1990. Cell structure.In: Cole, K. M., and Sheath, R. G., ed., Biology of the Red Algae. Cambridge University Press, New York, p. 8–36.Google Scholar
  11. Tseng, C. K., T. J. Chang, 1955a. Studies on the life history ofPorphyra tenera Kjellm.Scientia Sinica 4: 375–398.Google Scholar
  12. Tseng, C. K. and T. J. Chang, 1955b. Studies onPorphyra III. sexual reproduction ofPorphyra.Acta Botanica Sinica.4(2): 153–166. (in Chinese with English abstract)Google Scholar
  13. Ueda, S., 1937. Studies on the life-history ofPorphyra tenera Kjellm.Bull. Jap. Soc. Sci. Fish 6(2): 32–50. Pls. 1–6. (in Japanese with English abstract)Google Scholar
  14. Wang, S. J. and Z. D. Xu, 1984. Ultrastructural studies on the reproductive organs ofPorphyra haitanensis T. J. Chang et B. F. Zheng.Hydrobiologia 116/117: 213–217.Google Scholar
  15. Yan, Z. M., 1987. A study on the cultivation of the isolated reproductive cell ofPorphyra katadai Miura var.hemiphylia Tseng et T. J. Chang.Collect. Ocean Works 10: 135–138.Google Scholar

Copyright information

© Science Press 2005

Authors and Affiliations

  1. 1.Marine Biotechnology DepartmentShandong University at WeihaiWeihaiChina
  2. 2.Institute of OceanologyChinese Academy of ScienceQingdaoChina

Personalised recommendations