Registration Dossier

Environmental fate & pathways

Mode of degradation in actual use

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Administrative data

Endpoint:
mode of degradation in actual use
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
publication
Title:
Rapid degradation of Cyanuric Acid by Sporothrix schenckii
Author:
Zeyer J Bodmer J & Hutter R
Year:
1981
Bibliographic source:
Zentrabl. Bakteriol., Mikrobiol. Hyg., Abt. 1, Orig. C, 1981, 2(2) 99-110

Materials and methods

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
(14C) cyanuric acid with a specific activity of 0.5 x 106 Bq/mg containing less than 3% impurities.

Results and discussion

Any other information on results incl. tables

A strain of Sporothrix schenckii was isolated which rapidly degraded cyanuric acid. The specific rate of degradation amounted to 30 mg cyanuric acid x h -1 (g dry weight of cells) -1. During growth the strain was able to utilize cyanuric acid as its sole nitrogen source, with a concomitant release of carbon dioxide. Resting cells degraded the compound to carbon dioxide and ammonia. The action of the degrading enzymes was induced primarily by cyanuric acid, whereas ammonia and biuret resulted in a reduction of the specific rate of cyanuric acid degradation.

Applicant's summary and conclusion