• ALGAE
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• 제18권4호
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• pp.333-339
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• 2003

To establish a cultivation method of Petalonia fascia, seeds and seedlings cultures and growth tests were performed at the Daeri aquafarm in Haeui, Shinan, Jeollanamdo, Korea. Gametes were easily released from the mature plurilocular sporangia. They developed to crustose discoidal stolons and grew to filamentous and discoidal stolons. The indoor seeding was performed by using the 100-150 ${\mu}m$long fragments of stolons on Porphyra nets and the erect thalli developed from the cuttings when the seawater temperatures were 10-15$^{\circ}C$. In the experimental cultivation in the sea, 1-2mm long plantlets were found after 15 days of cultivation; after two months thalli grew to their maximal size of 215-355 mm long blades; after three months the length of thalli began to decrease due to distal disintegration and the plant color changed to yellow and epiphytic diatoms were attached on the thalli, which deteriorated the quality of products. The cultivation of P. fascia by the regeneration of filamentous-discoidal complexes was carried out successfully for the first time in Korea.

• Journal of Plant Biology
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• 제35권2호
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• pp.125-134
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• 1992

울릉도 갈조식물 고리매과(Scytosiphonaceae)의 5종에 대한 분류학적 검토를 수행하였다. Colpomenia peregrina (불레기말사촌)은 한국 미기록 식물이며 외부 형태에서는 C. sinuosa와 매우 유사하지만 전자는 복자낭을 싸고 있는 cuticle을 갖지 않는다는 점에서 후자와 구분되었다. Endarachne bingahmiae(미역쇠)는 북미산 식물들과 그 분류형질에서 잘 일치하지만 체장과 체폭이 계절에 따라 차이를 보였다. Hydroclathrus clathratus(그물바구니)는 1-2개의 색소가 침적된 피층세포와 크고 불규칙하게 배열된 내피층세포를 갖는 특징을 보였다. Petalonia fascia(개미역쇠)는 1-2개의 피층세포를 가지면 2-4개의 크고 불규칙한 내피층세포를 갖는 특징을 보였다. Scytosiphonia lomentaria(고리매)는 계절에 따라 체형에서 다양성을 보이며 특히 체장, 체폭에서 차이를 보였다.

• ALGAE
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• 제34권3호
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• pp.229-236
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• 2019

Despite the abundance of seaweeds from Ulleungdo Island, genetic diversity and distribution of edible brown algae from the island remain unstudied. We analyzed mitochondrial cox3 sequences from 86 specimens collected in the island and from the nearby Korean Peninsula. Our cox3 phylogeny for the first time confirmed the occurrence of fives species from Ulleungdo Island; Petalonia binghamiae, P. fascia, Planosiphon zosterifolius, and two cryptic species previously identified as Scytosiphon lomentaria. P. binghamiae was relatively homogeneous with three haplotypes. P. fascia comprised four haplotypes, which were grouped into two genetic lineages. S. lomentaria was heterogeneous with nine haplotypes and was divided into two cryptic species; one species clustered with taxa from cold waters while the other clustered with taxa from temperate and cold waters. Low genetic diversity in P. binghamiae while high genetic diversity in S. lomentaria from Ulleungdo Island are comparable to patterns observed from other species from the Korean peninsula. Ulleungdo Island, although small in size, is an ideal field laboratory to investigate genetic diversity and distributions of economic marine algae.