Resting stages of freshwater algae from surface sediments in Paldang Dam Lake, Korea SCIE SCOPUS

Cited 4 time in WEB OF SCIENCE Cited 5 time in Scopus
Title
Resting stages of freshwater algae from surface sediments in Paldang Dam Lake, Korea
Author(s)
Li, Zhun; Shin, Hyeon Ho; Lee, Taehee; Han, Myung-Soo
KIOST Author(s)
Shin, Hyeon Ho(신현호)Lee, Tae Hee(이태희)
Publication Year
2015
Abstract
Although the studies on marine cysts are quite frequent, information on resting stages of freshwater algae are rather scarce. The present study focused on the identification of resting-stage algae from freshwater sediments in Paldang Dam Lake, an important source of water for South Korea. We examined the morphological characteristics of resting-stage specimens and identified them by germination experiments or DNA analysis. Surface sediment samples were collected from 12 sites in Paldang Dam Lake from July 2009 to June 2010. Thirty-five resting stage morphotypes were identified: 19 chlorophytes, 6 dinoflagellates, 5 diatoms, 2 cyanobacteria, 2 euglenoids and 1 cryptophyte. Resting-stage and vegetative cells of five chlorophyte morphotypes could not be identified by morphology. These specimens were identified by molecular sequence analysis based on the nuclear-encoded SSU rDNA sequences of Polyedriopsis, Oogamochlamys and Chlamydomonas. Our samples included resting-stage of the potentially toxic species Cylindrospennum stagnale, the first recorded sighting in Korea. Resting-stage assemblages were dominated by diatoms, which ranged from 560 to 2750 cells g(-1). Resting-stage of diatoms and cyanobacteria were abundant along the eastern shore toward the southern part of Paldang Dam Lake, where there have been periodic algal blooms.
ISSN
0029-5035
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2618
DOI
10.1127/nova_hedwigia/2015/0284
Bibliographic Citation
NOVA HEDWIGIA, v.101, no.3-4, pp.475 - 500, 2015
Publisher
GEBRUDER BORNTRAEGER
Subject
DINOFLAGELLATE CYSTS; AKINETE DIFFERENTIATION; VEGETATIVE POPULATION; GERMINATION; CRYPTOPHYCEAE; SEQUENCES; RESERVOIR; PATTERNS; ECOLOGY; LIGHT
Keywords
resting-stage algae; morphology; freshwater; surface sediment
Type
Article
Language
English
Document Type
Article
Publisher
GEBRUDER BORNTRAEGER
Related Researcher
Research Interests

Marine bioresource,Marine phytoplankton diversity / ecology,Marine micropaleontology,해양생물자원,해양식물플랑크톤 다양성/생태학,해양미고생물학

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