Reference

Degradation of phenyl carbamate herbicides by Pseudomonas alcaligenes isolated from soil

Degradation of phenyl carbamate herbicides by Pseudomonas alcaligenes isolated from soil. Marty, J. L.; Khafif, T.; Vega, Danielle; Bastide, J. (Groupe Etud. Rech. Appl. Pluridisc., IUT, Perpignan 66025, Fr.). Soil Biol. Biochem., 18(6), 649-53 (English) 1986. CODEN: SBIOAH. ISSN: 0038-0717. DOCUMENT TYPE: Journal CA Section: 10 (Microbial Biochemistry) Section cross-reference(s): 5 A bacterial strain isolated from soil and identified as P. alcaligenes was able to hydrolyze 4 phenylcarbamate herbicides to corresponding anilines and alcs. by co-metab. The pH of the growth medium had little influence on bacterial growth and rate of herbicide transformation. Increase in CIPC [101-21-3] and BIPC [1967-16-4] concns. resulted in a significant inhibition of bacterial growth and herbicide degrdn. Using a range of antibiotics, it was shown that the enzyme involved in degrdn. was inducible.

Effect of some pesticides on the growth of Rhizobium leguminosarum in liquid culture media

Effect of some pesticides on the growth of Rhizobium leguminosarum in liquid culture media. Hamed, A. S.; Salem, S. H. (Soil Dep., Natl. Res. Cent., Cairo, Egypt). Soil Biol. Conserv. Biosphere, [Proc. Meet.], 7th, Meeting Date 1975, 103-9. Edited by: Szegi, J. Akad. Kiado: Budapest, Hung. (English) 1977. CODEN: 38XLA9. DOCUMENT TYPE: Conference CA Section: 5 (Agrochemicals) The effect of certain pesticides, belonging to different chem. groups , such as Dipterex [52-68-6], endrin (I) [72-20-8], Sevin [63-25-2], (as insecticides), Cu oxychloride, Dithane Z 78 [12122-67-7], Phygon XL-DDT mixt. [67913-48-8] (as fungicides) and CIPC [101-21-3] (as herbicide) on the growth of 2 strains of R. leguminosarum were studied in liq. culture media. The susceptibility of Rhizobium from broad bean nodules (Rv) and Rhizobium from lentil nodules (RL) towards the added pesticides differed from one strain to another. The effect varied from complete toxicity to a neg. effect; the chem. behaved in some cases as a stimulant for the growth of the bacteria. When insecticides were used, Dipterex was found to be the most inhibitory to both rhizobial strains, followed by I and Sevin. However, the strain RL toleratd the application of the insecticides better than strain Rv did. In the case of the fungicide applications, strain Rv tolerated the toxicant better than RL. Cu oxychloride was highly inhibitory, minimizing the growth of both strains , stronger than Dithane Z 78 and Phygon XL-DDT. Dipterex was the most inhibitory. The inhibitory effect of the pesticides on the growth of R. leguminosarum could be arranged as follows: insecticides > fungicides > herbicides.