✦ LIBER ✦

First report of microcystin production by picoplanktonic cyanobacteria isolated from a northeast Brazilian drinking water supply

✍ Scribed by P. Domingos; T. K. Rubim; R. J. R. Molica; S. M. F. O. Azevedo; W. W. Carmichael

Book ID: 101315591
Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 138 KB
Volume: 14
Category: Article
ISSN: 1520-4081
DOI: 10.1002/(sici)1522-7278(199902)14:1<31::aid-tox6>3.0.co;2-b

No coin nor oath required. For personal study only.

✦ Synopsis

Seven strains of picoplanktonic cyanobacteria from Caruaru reservoirs were identified and analyzed for toxicity. We tested the toxicity of these strains ( ) by mouse bioassay, by HPLC, and by enzyme-linked immunosorbent assay ELISA . Strains NPCA-15 ( ) and -23 were toxic when tested by mouse bioassay LD = 600 mg / kg body weight . The toxin from 10 0 DW strain NPCA-15 had the same UV spectrum as microcystin-LR. All of the strains showed the presence of ( ) microcystin by ELISA analysis. The microcystin concentration varied between 0.08 ng / mg NPCA-5 DW ( ) and 3.7 ng / mg NPCA-15 . Confirmation of microcystin production by picoplankton opens the DW possibility that these organisms may have contributed to human poisoning in Caruaru and defines a new source of microcystin in water supplies.

📜 SIMILAR VOLUMES

Microcystin production by Radiocystis fe

Microcystin production by Radiocystis fernandoi (Chroococcales, Cyanobacteria) isolated from a drinking water reservoir in the city of Belém, PA, Brazilian Amazonia region

✍ José Maria dos S Vieira; Maria Teresa de P Azevedo; Sandra Maria Feliciano de Ol 📂 Article 📅 2003 🏛 Elsevier Science 🌐 English ⚖ 152 KB

First report of microcystin production i

First report of microcystin production in Microcystis smithii Komárek and Anagnostidis (Cyanobacteria) from a water bloom in Eastern China

✍ Yang Liu; Wenhua Tan; Xingqiang Wu; Zhongxing Wu; Gongliang Yu; Renhui Li 📂 Article 📅 2011 🏛 IOS Press 🌐 English ⚖ 161 KB