Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Regeneration and Maturation Induction of Free-Living Gametophytes of Undariopsis peterseniana for their Mass Production

넓미역(Undariopsis peterseniana)의 대량생산을 위한 유리배우체의 재생 및 성숙 유도

  • 황은경 (국립수산과학원 해조류바이오연구센터) ;
  • 심철홍 (국립수산과학원 해조류바이오연구센터) ;
  • 하동수 (국립수산과학원 해조류바이오연구센터) ;
  • 공용근 (국립수산과학원 해조류바이오연구센터) ;
  • 박찬선 (목포대학교 해양수산자원학과)
  • Received : 2011.02.11
  • Accepted : 2011.03.18
  • Published : 2011.04.30
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Abstract

Induction of regeneration and maturation of the free-living gametophytes of Undariopsis peterseniana (Kjellman) Miyabe et Okamura was studied at four temperatures (5, 10, 15, and $20^{\circ}C$), four levels of irradiance (5, 10, 20, and 40 ${\mu}mol$ $m^{-2}\;s^{-1}$) and three photoperiods (14:10, 12:12, and 10:14 h L:D). Female gametophyte fragments were maintained in active regeneration without reaching sexual maturity under conditions of $15^{\circ}C$, 20 ${\mu}mol\;m^{-2}\;s^{-1}$, 10:14 h (L:D), whereas the conditions for male gametophytes were slightly different at $15^{\circ}C$, 20 ${\mu}mol\;m^{-2}\;s^{-1}$, 14:10 h (L:D). The sexual maturation of female and male gametophytes took place under $15^{\circ}C$, 20 ${\mu}mol\;m^{-2}\;s^{-1}$, 14:10 h (L:D) and $10^{\circ}C$, 10 ${\mu}mol\;m^{-2}\;s^{-1}$, 10:14 h (L:D), respectively. These results provide basic information for controlling the regeneration and maturation of free-living gametophytes for artificial seed production of U. peterseniana.

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References

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