title: First report of cylindrospermopsin production by two cyanobacteria (Dolichospermum mendotae and Chrysosporum ovalisporum) in Lake Iznik, Turkey.
abstract: Cylindrospermopsin (CYN) is a cytotoxic alkaloid produced by cyanobacteria. The distribution of this toxin is expanding around the world and the number of cyanobacteria species producing this toxin is also increasing. CYN was detected for the first time in Turkey during the summer months of 2013. The responsible species were identified as Dolichospermum (Anabaena) mendotae and Chrysosporum (Aphanizomenon) ovalisporum. The D. mendotae increased in May, however, C. ovalisporum formed a prolonged bloom in August. CYN concentrations were measured by LC-MS/MS and ranged from 0.12 µg·mg⁻¹ to 4.92 µg·mg⁻¹ as dry weight, respectively. Both species were the only cyanobacteria actively growing and CYN production was attributed solely to these species. Despite CYN production by C. ovalisporum being a well-known phenomenon, to our knowledge, this is the first report of CYN found in D. mendotae bloom.
authors.affiliation: Department of Freshwater Biology, Faculty of Fisheries, Istanbul University, Ordu Cad. No. 200, Laleli, Istanbul 34470, Turkey. rakcaalan@gmail.com.
authors.forename: Reyhan
authors.initials: R
authors.lastname: Akcaalan
authors.affiliation: Department of Freshwater Biology, Faculty of Fisheries, Istanbul University, Ordu Cad. No. 200, Laleli, Istanbul 34470, Turkey. latifekoker@gmail.com.
authors.forename: Latife
authors.initials: L
authors.lastname: Köker
authors.affiliation: Department of Freshwater Biology, Faculty of Fisheries, Istanbul University, Ordu Cad. No. 200, Laleli, Istanbul 34470, Turkey. aycaoguz@gmail.com.
authors.forename: Ayça
authors.initials: A
authors.lastname: Oğuz
authors.affiliation: Department of Biosciences, Åbo Akademi University, Tykistökatu 6A, 20520 Turku, Finland. lisa.spoof@abo.fi.
authors.forename: Lisa
authors.initials: L
authors.lastname: Spoof
authors.affiliation: Department of Biosciences, Åbo Akademi University, Tykistökatu 6A, 20520 Turku, Finland. jussi.meriluoto@abo.fi.
authors.forename: Jussi
authors.initials: J
authors.lastname: Meriluoto
authors.affiliation: Department of Freshwater Biology, Faculty of Fisheries, Istanbul University, Ordu Cad. No. 200, Laleli, Istanbul 34470, Turkey. albay.hermano@gmail.com.
authors.forename: Meriç
authors.initials: M
authors.lastname: Albay
mesh_terms: D000470:Alkaloids / Q000032:analysis / Q000096:biosynthesis* / Q000737:chemistry / Q000302:isolation & purification; D017033:Anabaena / Q000145:classification / Q000254:growth & development / Q000302:isolation & purification / Q000378:metabolism*; D046890:Aphanizomenon / Q000145:classification / Q000254:growth & development / Q000302:isolation & purification / Q000378:metabolism*; D001427:Bacterial Toxins / Q000032:analysis / Q000096:biosynthesis* / Q000737:chemistry / Q000302:isolation & purification; D002851:Chromatography, High Pressure Liquid; D000087522:Cyanobacteria Toxins; D060106:Lakes / Q000382:microbiology; D058889:Molecular Typing; D012621:Seasons; D021241:Spectrometry, Mass, Electrospray Ionization; D053719:Tandem Mass Spectrometry; D014421:Turkey; D014498:Uracil / Q000031:analogs & derivatives* / Q000032:analysis / Q000096:biosynthesis / Q000737:chemistry / Q000302:isolation & purification; D014871:Water Microbiology; D014877:Water Pollution, Chemical; D060753:Water Quality
chemical_list: D000470:Alkaloids; D001427:Bacterial Toxins; D000087522:Cyanobacteria Toxins; C089595:cylindrospermopsin; D014498:Uracil