Abstract

동해안의 3개 정점(삼척, 영덕, 포항)과 서해안의 2개 정점(학암포, 만리포)에서 여름철(7, 8월)에 진두발을 채집하여 생장, 성숙, 배우체와 사분포자체 비율 및 질병에 대한 연구를 실시하였다. 진두발의 체장은 개체군별로 평균 6.10~9.69 cm였으며 만리포에서 최소였고 포항에서 최대로서 동해안 개체가 서해안 개체에 비해 큰 것으로 확인되었다. 개체가 서해안 진두발에 비해 큰 것을 확인하였다. 진두발 개체군의 영양체 비율은 26.7~66.7 %였으며, 영양체를 resorcinol 방법으로 구분한 후 배우체:사분포자체 비율은 동해안에서 1.7:1로 배우체가 우점하였고 서해안에서는 학암포에서 1:1.1, 만리포에서 1:2.3로서 포자체가 번무하였다. 본 연구에서 한국산 진두발은 다양한 질병(백색증과 녹반증 등), 내생조류와 착생조류를 가지고 있었으며, 여름철의 진두발은 건강한 조체는 20~40 %로서 많은 개체가 질병을 가지고 있었다. 진두발은 현재까지 동정되지 않은 사상형 녹조류인 내생하는 Ulvella sp.를 가지고 있었다. 이러한 내생조류는 유럽과 캐나다의 주름진두발에서 관찰되는 감염성 병원체로서 보다 많은 관심과 연구가 요구된다. The growth, reproduction, gametophyte(G)/tetrasporophyte(T) ratio, and diseases of Chondrus ocellatus populations were examined at 3 sites (Samcheok, Youngduk, Pohang) of East coast and at 2 sites (Hakampo, Manripo) of West coast in between July and August, 2013. Average plant lengths were 6.10~9.69 cm and it was minimum at Manripo and maximum at Pohang population. In general, average plant length and weight of C. ocellatus were greater on East coast than West coast populations. The proportion of vegetative plant was between 26.7~66.7 %, and G/T ratio of total plants including vegetative plants after testing resorcinol method was 3:2 on the East coast where is gametophyte dominant area. However, G/T ratio was 1:1 at Hakampo and 1:2.3 at Manripo representing tetrasporophyte dominance. In the present study, Korean C. ocellatus have various diseases (white colour and green colour), an endophytic alga(Ulvella sp.), and many epiphytic macroalgae and diatoms. Healthy C. ocellatus plants were about 20~40 % in summer population and most of plants had disease. Chondrus ocellatus had a filamentous green alga, endophytic Ulvella sp. which was not identified. The endophyte is easily observed in C. crispus growing in Europe and Canada and it is recognised as a pathogen destroying population and reducing yield of C. crispus. Thus more interest and research on the endophytic algae and disease of C. ocellatus are required.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.