Abstract
The sensitivity of estuarine bacteria to organotin compounds (OTCs) was examined using the agar plate method by counting colony forming units (CFU) for estuarine water samples gathered at Aburatsubo and Kachidoki. Inhibition of bacterial colony formation occurred in a concentration range of 2 to 40μg Sn/l of bis-tributyltin oxide (TBTO) and triphenyltin chloride (TPT) regardless of media composition, inoculation method, or sample water. Similar numbers of TBTO- and TPT-resistant bacteria were counted by the MPN method at the inhibitory concentration range, indicating that the agar plate method was applicable to tests of the sensitivity of natural populations of estuarine bacteria to OTCs. The inhibitory activity of seven kinds of TBTO- and TPT-related compounds was compared. The results revealed that dialkyltins were most toxic, followed by trialkyltins, monoalkyltins, and tetraalkyltins. This order is unique for bacteria, and has not to date been reported for any other organisms.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
