ENVIRONMENTAL HAZARD OF THE HERBICIDE BENTHIOCARB ON THE NON TARGET CYANOBACTEIRIUM, GLOEOCAPSA SP. | ||
| Egyptian Journal of Phycology | ||
| Article 5, Volume 1, 1 st Int. Symp. Phycol. (ISP). (21-22) Oct. 2000, 2000, Pages 55-61 PDF (1.81 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/egyjs.2000.113210 | ||
| Authors | ||
| Ola Hammouda; Mohamed S. Abdel Hameed | ||
| Botany Department, Faculty of science, Cairo University, Beni-Suef branch, Beni-Suef, Egypt. | ||
| Abstract | ||
| A variety of responses were noticed when examining the influence of the rice field herbicide benthiocarb (saturn) on Gloeocapsa sp. The herbicide affected growth and cellular Chl a content of the Cyanobacterium. This suggested investigations on some other metabolic activities. Oxygen evolution was reduced by 20-55% in response to treatment with low herbicide concentrations (4-I0 ppm, respectively). The process was time dependent. The rate of protein synthesis was highly sensitive to benthiocarb at low concentrations, whereas high concentrations caused an impairment of the protein synthesis process and a reduction in the nitrogen fixation ability of the Cyanobacterium. The results are of considerable significance, since the applied concentrations are less than normal field application. | ||
| Keywords | ||
| herbicides; Gloeocapsa sp; environmental hazard | ||
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