First Report of the Marine Benthic Dinoflagellate Bysmatrum subsalsum from Korean Tidal Pools SCIE SCOPUS

Cited 1 time in WEB OF SCIENCE Cited 1 time in Scopus
Title
First Report of the Marine Benthic Dinoflagellate Bysmatrum subsalsum from Korean Tidal Pools
Author(s)
Park, Joon Sang; Li, Zhun; Kim, Hyun Jung; Kim, Ki Hyun; Lee, Kyun Woo; Youn, Joo Yeon; Kwak, Kyeong Yoon; Shin, Hyeon Ho
KIOST Author(s)
Park, Joon Sang(박준상)Lee, Kyun Woo(이균우)Youn, Joo Yeon(윤주연)Kwak, Kyeong Yoon(곽경윤)Shin, Hyeon Ho(신현호)
Alternative Author(s)
박준상; 김현정; 이균우; 윤주연; 곽경윤; 신현호
Publication Year
2021-06
Abstract
Dense patches were observed in the tidal pools of the southern area of Korea. To clarify the causative organisms, the cells were collected and their morphological features were examined using light and scanning electron microscopy (SEM). In addition, after establishing strains for the cells the molecular phylogeny was inferred with concatenated small subunit (SSU) and large subunit (LSU) rRNA sequences. The cells were characterized by a nucleus in the hypotheca, strong reticulations in thecal plates, the separation of plates 2a and 3a, the tear-shaped apical pore complex, an elongated rectangular 1a plate and the absence of the right sulcal list. The thecal plate formula was Po, X, 4 ', 3a, 7 '', 6c, 4S, 5 ''', 2 ''''. Based on these morphological features, the cells were identified as Bysmatrum subsalsum. In the culture, the spherical cysts of B. subsalsum without thecal plates were observed. Molecular phylogeny revealed two ribotypes of B. subsalsum are identified; The Korean isolates were nested within the ribotype B consisting of the isolates from China, Malaysia and the French Atlantic, whereas the ribotype A includes only the isolates from the Mediterranean Sea. In the phylogeny, B. subsalsum and B. austrafrum were grouped. This can be supported by the morphological similarity between the two species, indicating that the two species may be conspecific, however B. subsalsum may distinguish from B. austrafrum, because of differences in the types of eyespots reported in previous studies. These findings support the idea that there is cryptic diversity within B. subsalsum.
ISSN
2077-1312
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/42220
DOI
10.3390/jmse9060649
Bibliographic Citation
JOURNAL OF MARINE SCIENCE AND ENGINEERING, v.9, no.6, 2021
Publisher
MDPI
Keywords
Bysmatrum; cyst; eyespot; morphology; ribotype
Type
Article
Language
English
Document Type
Article
Publisher
MDPI
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