Tissue Culture of Grateloupia acuminata (Rhodophyta) from the Eastern Coast of Koea

동해안 홍조 지누아리사촌(Grateloupia acuminata) 식물의 조직배양

  • Kim Hyung-Geun (Faculty of Marine Bioscience and Technology, Kangnung National University) ;
  • Park Joong-Goo (Faculty of Marine Bioscience and Technology, Kangnung National University)
  • 김형근 (강릉대학교 해양생명공학부) ;
  • 박중구 (강릉대학교 해양생명공학부)
  • Published : 2006.08.01

Abstract

The Effect of different temperatures and photon irradiance on the growth of crust and the regeneration of tissue fragments of the commercially important red alga Grateloupia acuminat Okamura were examined in laboratory cultures. The tetraspore developed into basal crusts and produced upright thalli. Crust grew very fast at $25^{\circ}C$ and $80{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$ after one week in indoor culture. However, they stopped growing after three weeks. Maximum growth was $275{\mu}m$ in diameter. They required four weeks to get upright thalli at $5^{\circ}C$, while only three weeks were required at $10^{\circ}C$. When different light intensities were compared at $15^{\circ}C$, cells of the crusts were well differentiated $80{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$ and consistently divided so that upright thalli were produced. In aeration culture, the upright thalli grew up to 6.5 cm in length within 4 months. Thus, it is possible to produce mass cultures of Grateloupia in the field. In addition, female and male gametophytes developed from the tetraspores and they were fertilized to produce tetrasporohyte thalli. By this procedure, the normal life cycle of the red alga G. acuminata was completed.

유용 해조류인 지누아리사촌(Grateloupia acuminata Okamura) 사분포자체의 실내배양에서 조직 절편의 재생과 각상체의 성장에 대한 온도와 조도의 영향을 분석하였다. 조직절편에서 얻은 재생엽에서 사분포자를 얻고 이것은 기부반상근과 직립엽체로 발전하였다. 온도별 반상근의 성장은 배양 1주후에 온도 $25^{\circ}C$ 조도 $80{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$의 조건에서 $275{\mu}m$로 가장 좋았다. 그러나 고온도의 조건에서는 3주후에 더 이상 생장하지 않았다. 반상근에서 직립엽체로 발전하는데 온도 $10^{\circ}C$에서는 3주 걸린 반면 $5^{\circ}C$에서는 4주간 걸려 저온도에서 성장이 천천히 나타났다. $15^{\circ}C$의 동일 온도조건에서 조도의 영향은 $80{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$의 조건에서 반상근의 성장과 분화가 잘 이루어졌다. 통기배양에서 직립엽체는 4개월 후에 6.5cm크기의 엽체로 자랐다. 또한 사분포자에서 암, 수배우체가 형성되었으며 여기에서 사분포자체를 확보하게 되므로 배양실험을 통해 지누아리사촌의 생활사 과정을 완성하였다.

Keywords

References

  1. Bula-Meyer, G., 1990. Experimental culture in the sea of the red macroalgae Grateloupia filicina. In Oliveira EC de, Kautsky N (eds), Workshop Proccedings, Cultivation of Seaweeds in Latin America, April 2-8, 1989. Univ. Sao Paulo/International Foundation for Science, 101-104
  2. Caliceti, M., E. Argese, A. Sfriso and B. Pavoni, 2002. Heavy metal contamination in the seaweeds of the venice lagoon. Chemosphere, 47, 443-454 https://doi.org/10.1016/S0045-6535(01)00292-2
  3. Chiang, Y. M., 1993. The developmental sequence of the marine red alga Grateloupia filicina in culture. Korean J. Phycol., 8(2), 231-237
  4. De Clerck O., A. Gavio, S. Fredericq, I. Barbara and E. Coppejans, 2005. Systematics of Grateloupia filicina(Halymeniaceae, Rhodophyta), based on the sequence analyses and morphological evidence, including the reinstatement of G. minima and the description of G. capensis sp. nov. J. Phycol., 41, 391-410 https://doi.org/10.1111/j.1529-8817.2005.04189.x
  5. Harlin, M. M. and M. Villalard-Bohnsack, 2001. Seasonal dynamics and recruitment strategies of the invasive seaweed Grateloupia doryphora(Halymeniaceae, Rhodophyta) in Narragansett Bay and Rhode Island Sound, Rhode Island, USA. 40(5), 468- 474
  6. Kang, J. W., 1966. On the geographical distribution of marine algae in Korea. Bull. Pusan Fish. Coll., 7, 1-136
  7. Lee, H. B., 1987. A systematic study of Halymeniaceae(Rhodophyta, Cryptonemiales) in Korea. Ph. D. thesis, Seoul Nat. Univ., Seoul, Korea. pp. 390
  8. Iima, M., T. Kinoshita, S. Kawaguchi and S. Migita, 1995. Cultivation of Grateloupia acuminata(Halymeniaceae, Rhodophyta) by regeneration from cut fragments of basal crusts and upright thalli. J. Appl. Phycol., 7, 583-588 https://doi.org/10.1007/BF00003946
  9. Marston, M. and M. Villalard-Bohnsack, 2002. Genetic variability and potential sources of Grateloupia doryphora(Halymeniaceae, Rhodophyta), an invasive species in Rhode Island waters (USA). J. Phycol., 38, 649-658 https://doi.org/10.1046/j.1529-8817.2002.01063.x
  10. Migita S., 1988. Cultivation of Grateloupia filicina(Rhodophyta, Cryptonemiales) by regeneration of crusts. Nippon Suisan Gakkaishi, 54, 1923-1927 (in Japanese) https://doi.org/10.2331/suisan.54.1923
  11. Simon, C., E. ArGall and E. Deslandes, 2001. Expansion of the red alga Grateloupia doryphora along the coasts of Britt any(France). Hydrobiologia, 443, 23-29 https://doi.org/10.1023/A:1017587918604
  12. Sohn, C. H., 1998. The seaweed resources of Korea. In Seaweed resources of the world. Japan Inter. Cooper. Agency. pp. 431
  13. Sylvester, A. W. and J. R. Waaland, 1983. Cloning the red alga Gigartina exasperata for culture on artificial substrates. Aquacultures, 31. 305-318 https://doi.org/10.1016/0044-8486(83)90321-6
  14. Wong, S. L. and J. Chang, 2000. Salinity and light effects on growth, photosynthesis, and respiration of Grateloupia filicina (Rhodophyta). Aquaculture, 182, 387-395 https://doi.org/10.1016/S0044-8486(99)00268-9