ScienceAsia 18 (1992): 067-072 |doi: 10.2306/scienceasia1513-1874.1992.18.067

KINETIC STUDIES OF DEGRADATION OF TRIPHENYLTIN PESTICIDES BY PSEUDOMONAS PUTIDA Number C

PORNSAWAN VISOOTTIVISETH,^a K. KRUAWAN,^b AMARET BHUMIRATANA,^c AND PRAPIN WILAIRAT^d

ABSTRACT: A newly isolated bacteria, Pseudomonas putida Number C, was able to degrade triphenyltin hydroxide (TPTOH), chloride (TPTCI) and acetate (TPTOAc) pesticides in vitro. Glucose was found to be necessary for the process. The rates of the disappearance of the pesticides parallel the rates of increase in the bacterial cell numbers. There was also a lag period of about 4 hours during the earIy stage of the degradation. Only a small amount of the pesticides were to be found attached to the cdl surface and organelles.

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a Department of Biology, Faculty of Science, Mahidol University, Bangkok, Thailand. .
b Department of Microbiology, Faculty of Science, Burabha University, Cholburi, Thailand.
C Department of Biotechnology, Faculty of Science, Mahidol University, Bangkok, Thailand.
d Department of Chemistry, Faculty of Science, MahidoI University, Bangkok, Thailand.

Received May 10, 1992