Factors affecting toxicity of ferulate towards the cyanobacterium Oscillatoria cf chalybea
✍ Scribed by Schrader, Kevin K; Rimando, Agnes M; Tucker, Craig S; Duke, Stephen O
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 122 KB
- Volume
- 55
- Category
- Article
- ISSN
- 1526-498X
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✦ Synopsis
The objectives of this study were to determine the effect of ferulate and its analogs, and factors which may affect the toxicity of ferulate to Oscillatoria cf chalybea, the cyanobacterium presumed to cause musty ¯avor in farm-raised cat®sh. Rapid bioassays utilizing 96-well and six-well cell culture plates were used to monitor the toxicity of ferulate analogs and potential ferulate stability factors toward O cf chalybea. The additions of low concentrations of the oxidizing compound sodium carbonate peroxyhydrate with ferulate did not help control O cf. chalybea. Of three forms of ferulate tested, trans-ferulate was most toxic towards O cf chalybea. Light enhanced the toxicity of ferulate, indicating that weather conditions and the time of day could in¯uence the success of ferulate applications to ®sh ponds to control O cf chalybea. Ferulate was less toxic to O cf chalybea in six-well culture plates than in 96-well plates, indicating that higher concentrations of ferulate should be used in ®eld trials, due to possible reduction of ferulate toxicity towards O cf chalybea in large, aquatic environments (ie ®sh ponds). These studies provided fundamental information on potential ferulate toxicity towards O cf chalybea to be considered before conducting ®eld trials (ferulate applications to ®sh ponds).