납작돌잎(Lithophyllum yessoense)과 진분홍딱지(Hildenbrandia rubra)의 포자방출 및 생장에 미치는 수온의 영향 (Effects of Temperature on the Spore Release and Growth of Lithophyllum yessoense and Hildenbrandia rubra)

서지정보

· 발행기관 : 한국수산과학회
· 수록지 정보 : 한국수산과학회지 / 46권 / 3호 / 296 ~ 302페이지
· 저자명 : 송지나, 박향하, 허진석, 오지철, 김영식, 최한길, 남기완

초록

The effects of temperature on spore release, growth and photosynthetic efficiency of Lithophyllum yessoense and Hildenbrandia rubra were examined. L . yessoense was collected at Galnam and H. rubra was collected at Gyeokpo, Korea. The experimental temperatures were different for spore release (10, 15, 20℃), sporeling growth (10, 15, 20, 25, 30℃) and photosynthetic efficiency (10, 15, 20, 25℃). All other culture conditions were the same: 34 psu, 12:12 LD and 50 μmol photon m-2 s-1. Spore liberation was maximal at 10℃ for L . yessoense and at 20℃ for H. rubra . After 14 days, the surface area of L .yessoense was 0.031 mm2 at 25℃ and for H. rubra was 0.032 mm2 at 20℃. Sporelings of L . yessoense were a dark-red color and grew in a round shape. In contrast, H. rubra was bright pink and changed from a round shape in the early growth stage to later become flabelliform. Photosynthetic efficiency was highest between 20-25℃ in both species. In conclusion, L . yessoense and H. rubra display different physiological features based on the optimal temperatures for spore release and sporling growth.

영어초록

The effects of temperature on spore release, growth and photosynthetic efficiency of Lithophyllum yessoense and Hildenbrandia rubra were examined. L . yessoense was collected at Galnam and H. rubra was collected at Gyeokpo, Korea. The experimental temperatures were different for spore release (10, 15, 20℃), sporeling growth (10, 15, 20, 25, 30℃) and photosynthetic efficiency (10, 15, 20, 25℃). All other culture conditions were the same: 34 psu, 12:12 LD and 50 μmol photon m-2 s-1. Spore liberation was maximal at 10℃ for L . yessoense and at 20℃ for H. rubra . After 14 days, the surface area of L .yessoense was 0.031 mm2 at 25℃ and for H. rubra was 0.032 mm2 at 20℃. Sporelings of L . yessoense were a dark-red color and grew in a round shape. In contrast, H. rubra was bright pink and changed from a round shape in the early growth stage to later become flabelliform. Photosynthetic efficiency was highest between 20-25℃ in both species. In conclusion, L . yessoense and H. rubra display different physiological features based on the optimal temperatures for spore release and sporling growth.

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