1995). The dinoflagellate genus Karenia is known for recurrent harmful blooms worldwide. nov., Karenia selliformis sp. Allison J. Haywood, Karen A. Steidinger, Earnest W. Truby, Patricia R. Bergquist, Peter L. Bergquist, Janet Adamson, Lincoln MacKenzie . B., Henry, M., & Paul, V. J. (2009) Historical perspective on Karenia brevis red tide research in the Gulf of Mexico. Lefl. 1, No.4. Botanica Marina 55(1):31-37. Karenia brevis Published by Elsevier Ltd. Brevetoxin Toxin isolation HAB Osmotic stress 1. Eng. Holland). ⓘ Karenia papilionacea. Henrichs, D.W., M.A. nov., Karenia selliformis sp. 1). The isogamous gametes were slightly smaller than vegetative cells and not as broad and flat. Toxicity. Three new dinoflagellate species, Karenia papilionacea sp. Landsberg. Morphology and phylogeny of Prorocentrum texanum sp. Lab. nov., and Karenia bidigitata sp. (2010). INTRODUCTION. COMPARATIVE MORPHOLOGY AND MOLECULAR PHYLOGENETIC ANALYSIS OF THREE NEW SPECIES OF THE GENUS KARENIA (DINOPHYCEAE) FROM NEW ZEALAND 1. Comparison of swimming speed and photophysiological responses to different external conditions among three Karenia brevis strains Author MCKAY, Laurie 1; KAMYKOWSKI, Daniel 1; MILLIGAN, Ed 1; SCHAEFFER, Blake 1; SINCLAIR, Geoff 1 [1] Department of Marine, Earth, and Atmospheric Sciences, Jordan Hall, NC State University, Raleigh, NC, United States Source. Search: Add your article Home Years 2004 2004 in the environment Species described in 2004 Karenia papilionacea. nov., and Karenia bidigitata sp. A recent HAB dominated by the toxin-producing dinoflagellate Karenia brevis in the northeastern Gulf of Mexico, offshore of Florida’s Big Bend region, allowed for comparison of the capacities of VIIRS and Moderate Resolution Imaging Spectroradiometer (MODIS) to detect blooms in CDOM-rich waters. . The Journal of Phycology was founded in 1965 by the Phycological Society of America. 2004), it was often mistakenly identified as K. brevis. However, species diversity of the genus is generally overlooked owing to the difficulty of identifying small unarmored dinoflagellates. 2013. 129 Citations (Scopus) Abstract. The new species can be … Karenia brevis was first named Gymnodinium brevis in 1948, but later changed to Gymnodinium breve, which correlates with the guidelines of the International Code of Botanical Nomenclature. Harmful algae. Tel. Morphology of Karenia papilionacea (A), K. papilionacea phylotype-I (B), and Karenia mikimotoi (C) strains isolated from Uranouchi Inlet and Nomi Inlet. The Florida red tide dinoflagellate Karenia brevis… Morphology and phylogeny ofProrocentrum texanum sp. DW Henrichs, MA Renshaw, JR Gold, L Campbell. 2011 Expand/Collapse 2011. دانلود مقالات isi انگلیسی درباره برویس Karenia با ترجمه فارسی - مقالات الزویر ساینس دایرکت Science Direct Sci. 5 pp. These balls resembled K. brevis in size and organelle appearance, contained similar concentration of brevetoxin, and occurred during ongoing K. brevis bloom. Karenia brevis Most common in Gulf of Mexico and often confused for K. mikimotoi photo credit: J. Mar. Common to the genus Karenia, this species shares morphological characters such as a smooth theca and a linear apical groove on its apex. Karenia are well known for their toxic blooms that kill fish, marine organisms, and other animals. I. Morphology and thecal development in Gonyaulax polygramma Stein, 1883. Distinguishing morphological characters for the genus Karenia included a smooth theca and a linear apical groove. Neurotoxic shellfish poisoning (NSP) is caused by consumption of molluscan shellfish contaminated with brevetoxins primarily produced by the dinoflagellate, Karenia brevis. nov., were compared with the toxic species Karenia mikimotoi (Miyake & Kominami ex Oda) G. Hansen & Moestrup, Karenia brevis (Davis) G. Hansen & Moestrup, and Karenia brevisulcata (Chang) G. Hansen & Moestrup using the same fixative. Cells are wider than they are long (20–40 µm), with a round nucleus and consist of peripheral chloroplasts. Journal of Phycology. nov., and Karenia bidigitata sp. Effects of the Florida red tide … Blooms of K. brevis, called Florida red tide, occur frequently along the Gulf of Mexico. nov. (Dinophyceae): ... Karenia brevis red tides and brevetoxin-contaminated fish: a high risk factor for Florida’s scavenging shorebirds? nov. (Dinophyceae): A new toxic dinoflagellate from the Gulf of Mexico coastal waters exhibiting two distinct morphologies. Introduction K. brevis (Haywood et al. The morphology of the unarmored dinoflagellate K. brevis has been described in detail elsewhere (e.g., Gymnodinium breve in [], K. brevis in []).A typical description of K. brevis addresses the cell shape as dorso-ventrally flattened, ventrally concave, with a straight apical groove. 2006, Vol 5, Num 6, … 2011. : +64 3 548 2319; fax: +64 3 546 9464. produced ‘brevetoxin-like’ lipid soluble toxins (MacKenzie et al., E-mail address: patrick.holland@cawthron.org.nz (P.T. Three new dinoflagellate species, Karenia papilionacea sp. Taxonomy, the science of identification and classification, is a dynamic discipline in which conclusions change as advances in technology result in new information. Journal of Phycology 49: 143-155. 2004) (Fig. Karenia brevis （as Gymnodinium breve） Karlodinium micrum (as Gymnodinium galatheanum) Karenia brevis （as Gymnodinium breve） 72 100 93 95 - Apical groove is strait or sigmoid, containing chloroplast derived from a haptophyte. Three new dinoflagellate species, Karenia papilionacea sp. Mar. Morphology and behaviour of dinoflagellate chromosomes during the cell cycle and mitosis. Spherical cells were detected in low salinity waters during a bloom of Karenia brevis in Alabama coastal waters. species of Karenia were described based on abundant materials cultured under optimal conditions for growth that does not reproduce the low turbulence and olig-otrophic conditions of the open ocean. Fla. Bd. Department of Molecular Sciences; Research output: Contribution to journal › Article. Osmotic stress triggers toxin production by the dinoflagellate Karenia brevis. An abnormal, rounded, cell morphology was produced in K. brevis cultures acclimated to 28° C and persisted in cultures acclimated through 28° C to 31° C. As well, specific growth rates of cultures growing at 25° C and acclimated to 30° C differed depending on whether the average growth rates were derived from culture cell density or RFU measurements. Consequently lit-tle is known on the morphology and the life cycle of species such as K. papilionacea under natural conditions. The genome of Karenia brevis is estimated to be about 1 x 10^11 bp, although the genome has not been sequenced in any members of this genus. Brevetoxin-Producing Spherical Cells Present in Karenia brevis Bloom: Evidence of Morphological Plasticity? nov. (Dinophyceae): a new dinoflagellate from Gulf of Mexico coastal waters exhibiting two distinct morphologies. PDF | Spherical cells were detected in low salinity waters during a bloom of Karenia brevis in Alabama coastal waters. nov., were compared with the toxic species Karenia mikimotoi (Miyake & Kominami ex Oda) G. Hansen & Moestrup, Karenia brevis (Davis) G. Hansen & Moestrup, and Karenia brevisulcata (Chang) G. Hansen & Moestrup using the same fixative. Morphology and phylogeny of Prorocentrum texanum sp. 102) Steidinger K.A. 49:143-55 doi 10.1111/jpy.12030. (J. Mar. 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