

FOLLOWUS
1.Research Center of Harmful Algae and Marine Biology, Jinan University, Guangzhou 510632, China
2.Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai 519000, China
3.Department of Science Research, Beijing Museum of Natural History, Beijing 100050, China
4.Fujian Fishery Resources Monitoring Center, Fuzhou 350003, China
5.Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, Jinan University, Guangzhou 510632, China
jianyan WANG, E-mail:wjy198530@163.com
Songhui LÜ, E-mail:lusonghui1963@163.com
收稿:2020-06-08,
录用:2020-7-25,
网络首发:2020-08-25,
纸质出版:2021-01
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Jingyi CEN, Jianyan WANG, Lifen HUANG, et al.
Jingyi CEN, Jianyan WANG, Lifen HUANG, et al.
On May 24-29
2019
a harmful algal bloom occurred in Pingtan coastal areas
Fujian
southeast China
and caused mass mortality of cage-cultured fish. Two clonal cultures of an unknown naked dinoflagellate were set up from seawater samples taken during the bloom. The cultures were examined for morphological features
ultrastructure characters
photosynthetic pigments
the large subunit (LSU) of the rRNA gene
and the internal transcribed spacer (ITS) sequences
as well as acute toxicity analysis. The cell was unarmored
small-sized
and ovoid
and was characterized by elaborate striations on the epicone and hypocone. The nucleus was large
ellipsoid to oval or kidney-shaped
and centrally located in the cell. A long linear apical groove originated above the sulcus in the ventral epicone and extended to the dorsal side. An elongate
slit-like "ventral pore" was located on the left of the epicone
well away from the apical groove. The chloroplasts were yellowish brown
numerous
band like
and irregularly distributed in the cell periphery. Fucoxanthin was the main accessory pigment composition. Phylogeny topology reconstructed on partial LSU rDNA showed that the unknown dinoflagellate branched as a sister species to
Karlodinium
sp. (strain IFR981
&
IFR797
from France) and
Karlodinium corrugatum
(strain KDGSO08
from Australia)
with genetic divergences of 0.6% and 3.3%
respectively. Based on the morphological and molecular phylogenetic analysis
we describe the novel dinoflagellate as
Karlodinium elegans
sp. nov. A toxicity assay revealed that the clonal culture of
K. elegans
(strain PTB601) had no adverse effect on brine shrimp (
Artemia
salina
) and marine medaka (
Oryzias melastigma
)
indicating it may not be a toxic species.
Adolf J E, Bachvaroff T R, Deeds J R, Place A R. 2015. Ichthyotoxic Karlodinium veneficum (Ballantine) J Larsen in the Upper Swan River Estuary (Western Australia): ecological conditions leading to a fish kill. Harmful Algae , 48 : 83-93..
Bachvaroff T R, Adolf J E, Place A R. 2009. Strain variation in Karlodinium veneficum (Dinophyceae): toxin profiles, pigments, and growth characteristics. Journal of Phycology , 45 (1): 137-153..
Bachvaroff T R, Adolf J E, Squier A H, Harvey H R, Place A R. 2008. Characterization and quantification of karlotoxins by liquid chromatography-mass spectrometry. Harmful Algae , 7 (4): 473-484..
Benico G, Takahashi K, Lum W M, Yñiguez A T, Iwataki M. 2020. The harmful unarmored dinoflagellate Karlodinium in Japan and Philippines, with reference to ultrastructure and micropredation of Karlodinium azanzae sp. nov. (Kareniaceae, Dinophyceae). Journal of Phycology , https: //doi.org/10.1111/jpy.13030..
Bergholtz T, Daugbjerg N, Moestrup Ø, Fernández-Tejedor M. 2006. On the identity of Karlodinium veneficum and description of Karlodinium armiger sp. nov. (Dinophyceae), based on light and electron microscopy, nuclear-encoded LSU rDNA, and pigment composition. Journal of Phycology , 42 (1): 170-193..
Cen J Y, Wang J Y, Huang L F, Ding G M, Qi Y Z, Cao R B, Cui L, Lü S H. 2020. Who is the "murderer" of the bloom in coastal waters of Fujian, China, in 2019? Journal of Oceanology and Limnology , 38 (3): 722-732, https://doi.org/10.1007/s00343-019-9178-6..
Chakraborty S, Ramesh A, Dutta P S. 2016. Toxic phytoplankton as a keystone species in aquatic ecosystems: stable coexistence to biodiversity. Oikos , 125 (5): 735-746..
Daugbjerg N, Hansen G, Larsen J, Moestrup Ø. 2000, Phylogeny of some of the major genera of dinoflagellates based on ultrastructure and partial LSU rDNA sequence data, including the erection of three new genera of unarmoured dinoflagellates. Phycologia , 39 (4): 302-317..
de Salas M F, Bolch C J S, Hallegraeff G M. 2005. Karlodinium australe sp. nov. (Gymnodiniales, Dinophyceae), a new potentially ichthyotoxic unarmoured dinoflagellate from lagoonal habitats of south-eastern Australia. Phycologia , 44 (6): 640-650..
de Salas M F, Laza-Martínez A, Hallegraeff G M. 2008. Novel unarmored dinoflagellates from the toxigenic family Kareniaceae (Gymnodiniales): five new species of Karlodinium and one new Takayama from the Australian sector of the southern Ocean. Journal of Phycology , 44 (1): 241-257..
Deeds J R, Terlizzi D E, Adolf J E, Stoecker D K, Place A R. 2002. Toxic activity from cultures of Karlodinium micrum (= Gyrodinium galatheanum ) (Dinophyceae)—a dinoflagellate associated with fish mortalities in an estuarine aquaculture facility. Harmful Algae , 1 (2): 169-189..
Garcés E, Fernandez M, Penna A, Van Lenning K, Gutierrez A, Camp J, Zapata M. 2006. Characterization of NW Mediterranean Karlodinium spp. (Dinophyceae) strains using morphological, molecular, chemical, and physiological methodologies. Journal of Phycology , 42 (5): 1 096-1 112..
Guiry M D, Guiry G M. 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org http://www.algaebase.org . Accessed on 2020-02-25.
Jeffrey S W, Wright S W, Zapata M. 2011. Microalgal classes and their signature pigments. In : Roy S, Llewellyn C A, Egeland E S, Johnson G eds. Phytoplankton Pigments: Characterization, Chemotaxonomy and Applications in Oceanography. Cambridge University Press, Cambridge, United Kingdom. p.3-76.
Laza-Martinez A, Seoane S, Zapata M, Orive E. 2007. Phytoplankton pigment patterns in a temperate estuary: from unialgal cultures to natural assemblages. Journal of Plankton Research , 29 (11): 913-929..
Li Z, Shin H H. 2018. Morphology and phylogeny of an unarmored dinoflagellate, Karlodinium jejuense sp. nov. (Gymnodiniales), isolated from the northern East China Sea. Phycological Research , 66 (4): 318-328..
Lim H C, Leaw C P, Tan T H, Kon N F, Yek L H, Hii K S, Teng S T, Razali R M, Usup G, Iwataki M, Lim P T. 2014. A bloom of Karlodinium australe (Gymnodiniales, Dinophyceae) associated with mass mortality of cage-cultured fishes in West Johor Strait, Malaysia. Harmful Algae , 40 : 51-62..
Litaker R W, Vandersea M W, Kibler S R, Reece K S, Stokes N A, Lutzoni F M, Yonish B A, West M A, Black M N D, Tester P A. 2007. Recognizing dinoflagellate species using ITS rDNA sequences. Journal of Phycology , 43 (2): 344-355..
Luo Z H, Wang L, Chan L, Lu S H, Gu H F. 2018. Karlodinium zhouanum , a new dinoflagellate species from China, and molecular phylogeny of Karenia digitata and Karenia longicanalis (Gymnodiniales, Dinophyceae). Phycologia , 57 (4): 401-412..
Nézan E, Siano R, Boulben S, Boulben S, Six C, Bilien G, Chèze K, Duval A, Le Panse S, Quéré J, Chomérat N. 2014. Genetic diversity of the harmful family Kareniaceae (Gymnodiniales, Dinophyceae) in France, with the description of Karlodinium gentienii sp. nov.: a new potentially toxic dinoflagellate. Harmful Algae , 40 : 75-91..
Nunn G B, Theisen B F, Christensen B, Arctander P. 1996. Simplicity-correlated size growth of the nuclear 28S ribosomal RNA D3 expansion segment in the crustacean order Isopoda . Journal of Molecular Evolution , 42 (2): 211-223..
Pin L C, Tee L P, Ahmad A, Usup G. 2001. Genetic diversity of Ostreopsis ovata (dinophyceae) from Malaysia. Marine Biotechnology , 3 (3): 246-255..
Rasmussen S A, Binzer S B, Hoeck C, Meier S, de Medeiros L S, Andersen N G, Place A, Nielsen K F, Hansen P J, Larsen T O. 2017. Karmitoxin: an amine-containing polyhydroxy-polyene toxin from the marine dinoflagellate Karlodinium armiger . Journal of Natural Products , 80 (5): 1 287-1 293..
Ronquist F, Huelsenbeck J P. 2003. MrBayes 3: bayesian phylogenetic inference under mixed models. Bioinformatics , 19 (12): 1 572-1 574..
Scholin C A, Herzog M, Sogin M, Anderson D A. 1994. Identification of group-and strain-specific genetic markers for globally distributed Alexandrium (Dinophyceae). II. Sequence analysis of a fragment of the LSU rRNA gene. Journal of Phycolog y, 30 (6): 999-1 011..
Siano R, Kooistra W H C F, Montresor M, Zingone A. 2009. Unarmoured and thin-walled dinoflagellates from the Gulf of Naples, with the description of Woloszynskia cincta sp. nov. (Dinophyceae, Suessiales). Phycologia , 48 (1): 44-65..
Tammilehto A, Nielsen T G, Krock B, Møller E F, Lundholm N. 2015. Induction of domoic acid production in the toxic diatom Pseudo - nitzschia seriata by calanoid copepods. Aquatic Toxicology , 159 : 52-61..
Tamura K, Stecher G, Peterson D, Filipski A, Kumar S. 2013. MEGA6: molecular evolutionary genetics analysis version 6.0. Molecular Biology and Evolution , 30 (12): 2 725-2 729..
Thompson J D, Gibson T J, Plewniak F, Jeanmougin F, Higgins D G. 1997. The CLUSTAL_X windows interface: flexible strategies for multiple sequence alignment aided by quality analysis tools. Nucleic Acids Research , 25 (24): 4 876-4 882..
Van Wagoner R M, Deeds J R, Satake M, Ribeiro A A, Place A R, Wright J L C. 2008. Isolation and characterization of karlotoxin 1, a new amphipathic toxin from Karlodinium veneficum . Tetrahedron Letters , 49 (45): 6 457-6 461..
Wang H X, Lu D D, Huang H Y, Göbel J, Dai X F, Xia P. 2011. First observation of Karlodinium veneficum from the East China Sea and the coastal waters of Germany. Acta Oceanologica Sinica , 32 (6): 112-121..
Wang J Y, Cen J Y, Li S, Lü S H, Moestrup Ø, Chan K K, Jiang T, Lei X D. 2018. A re-investigation of the bloom-forming unarmored dinoflagellate Karenia longicanalis (syn. Karenia umbella ) from Chinese coastal waters. Journal of Oceanology and Limnology , 36 (6): 2 202-2 215..
Yang H J, Hu Z X, Xu N, Tang Y Z. 2019. A comparative study on the allelopathy and toxicity of four strains of Karlodinium veneficum with different culturing histories. Journal of Plankton Research , 41 (1): 17-29..
Zapata M, Fraga S, Rodríguez F, Garrido J L. 2012. Pigment-based chloroplast types in dinoflagellates. Marine Ecology Progress Series , 465 : 33-52..
Zapata M, Rodríguez F, Garrido J L. 2000. Separation of chlorophylls and carotenoids from marine phytoplankton: a new HPLC method using a reversed phase C 8 column and pyridine-containing mobile phases. Marine Ecology Progress Series , 195 : 29-45..
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