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Blooms of the woloszynskioid dinoflagellate Tovellia diexiensis sp nov (Dinophyceae) in Baishihai Lake at the eastern edge of Tibetan Plateau
Zhang, Qi1; Zhu, Huan1; Hu, Zhengyu2; Liu, Guoxiang1
2016-09-01
Source PublicationALGAE
ISSN1226-2617
Volume31Issue:3Pages:205-217
AbstractFreshwater red tides due to dinoflagellates have caused spectacular and regular "summer reddening" in recent years in Baishihai Lake, a temperate, meromictic, meso- or oligotrophic, high-altitude, landslide-dammed, deep lake located at the eastern edge of Tibetan Plateau in China. Based on morphological and molecular analyses, the causative organism has been identified as a new woloszynskioid dinoflagellate, Tovellia diexiensis Q. Zhang et G.X. Liu sp. nov. The vegetative cells are 20-32 mu m long and 16-24 mu m wide. They have a hemispherical episome and a broadly rounded hyposome with a short characteristic antapical spine. Usually cells are bright red due to the presence of numerous red-pigmented bodies, which often masked the yellowish green discoid chloroplasts. The amphiesma of motile cells comprise mainly quadrilateral, pentagonal or hexagonal thin plates, arranged in 4-5 latitudinal series on the episome, 1 in the cingulum and 4 on, the hyposome. Molecular phylogenies based on small subunit ribosomal DNA and large subunit ribosomal DNA (LSU) indicate T diexiensis from Baishihai Lake to belong to the family Tovelliaceae, which was monophyletic in our LSU phylogenies. During the bloom-forming period in 2005, cell density of T diexiensis reached 9.15 x 10(5) cells L-1. Astaxanthin and its diester were found to be the major pigments in T diexiensis, resulting in a characteristic blood-red color of the water in Baishihai Lake.
SubtypeArticle
KeywordAstaxanthin Baishihai Lake Bloom Ecology Morphological Observation Phylogeny Tovellia Diexiensis Sp Nov.
DOI10.4490/algae.2016.31.9.7
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China(31670202) ; National Natural Science Foundation of China(31670202) ; National Natural Science Foundation of China(31670202) ; National Natural Science Foundation of China(31670202)
Language英语
WOS Research AreaPlant Sciences
WOS SubjectPlant Sciences
WOS KeywordPHYLOGENY ; MORPHOLOGY ; SANGUINEA ; PIGMENTS ; MODELS ; CHINA ; GEN.
WOS IDWOS:000386107000002
Funding OrganizationNational Natural Science Foundation of China(31670202) ; National Natural Science Foundation of China(31670202) ; National Natural Science Foundation of China(31670202) ; National Natural Science Foundation of China(31670202)
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/28604
Collection藻类生物学及应用研究中心
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Qi,Zhu, Huan,Hu, Zhengyu,et al. Blooms of the woloszynskioid dinoflagellate Tovellia diexiensis sp nov (Dinophyceae) in Baishihai Lake at the eastern edge of Tibetan Plateau[J]. ALGAE,2016,31(3):205-217.
APA Zhang, Qi,Zhu, Huan,Hu, Zhengyu,&Liu, Guoxiang.(2016).Blooms of the woloszynskioid dinoflagellate Tovellia diexiensis sp nov (Dinophyceae) in Baishihai Lake at the eastern edge of Tibetan Plateau.ALGAE,31(3),205-217.
MLA Zhang, Qi,et al."Blooms of the woloszynskioid dinoflagellate Tovellia diexiensis sp nov (Dinophyceae) in Baishihai Lake at the eastern edge of Tibetan Plateau".ALGAE 31.3(2016):205-217.
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