| RRC ID |
20076
|
| 著者 |
Park HD, Watanabe MF, Harda K, Nagai H, Suzuki M, Watanabe M, Hayashi H.
|
| タイトル |
Hepatotoxin (microcystin) and neurotoxin (anatoxin-a) contained in natural blooms and strains of cyanobacteria from Japanese freshwaters.
|
| ジャーナル |
Nat Toxins
|
| Abstract |
Amounts of hepatotoxic microcystin and neurotoxic anatoxin-a were estimated in natural blooms and strains of cyanobacteria from freshwaters in Japan. A simultaneous analysis method of anatoxin-a and microcystin was applied to natural bloom samples, which has been dominated by several species and the strains of cyanobacteria which produced simultaneously both toxins. The natural blooms examined in the present study were mainly composed of Anabaena and Oscillatoria, but most also contained Microcystis and other cyanobacteria. Only one sample was almost unialgal, Anabaena spiroides, collected from Lake Sagami. The toxins in 14 samples collected from nine different natural blooms during 1988-1992 were identified as microcystins-RR, -YR, and -LR; desmethyl-7-microcystin-LR (7-DMLR); and anatoxin-a. Microcystins were the main toxins contained in these natural blooms, with anatoxin-a not being detected or of very little quantity. 7-DMLR was detected in samples only from Lake Kasumigaura. Five strains of Anabaena isolated from waters in Japan produced a small amount of anatoxin-a, but no microcystins. One half of the strains of Microcystis produced microcystins and/or anatoxin-a. This is the first study showing Microcystis producing both anatoxin-a and microcystins.
|
| 巻・号 |
1(6)
|
| ページ |
353-60
|
| 公開日 |
1993-1-1
|
| DOI |
10.1002/nt.2620010606
|
| PMID |
8167957
|
| MeSH |
Amino Acid Sequence
Bacterial Toxins / analysis*
Cyanobacteria / pathogenicity*
Cyanobacteria Toxins
Fresh Water
Japan
Marine Toxins / analysis*
Microcystins
Molecular Sequence Data
Peptides, Cyclic / analysis*
Tropanes
Water Microbiology*
|
| リソース情報 |
| 藻類 |
NIES-74
NIES-1063
NIES-1074
NIES-1079
NIES-1090
NIES-73
NIES-1086
NIES-1085 |
