Mineralization of parathion in the rice rhizosphere

Rajasekhar Reddy, B. ; Sethunathan, N. (1983) Mineralization of parathion in the rice rhizosphere Applied and Environmental Microbiology, 45 (3). pp. 826-829. ISSN 0099-2240

Full text not available from this repository.

Official URL: http://aem.asm.org/cgi/content/abstract/45/3/826


We studied 14CO2 evolution from ring-labeled [2,6-14C]parathion (O,O-diethyl-O-p-nitrophenyl phosphorothioate) in the rhizosphere of rice seedlings. The soil samples (nonflooded [60% water-holding capacity] and flooded) were treated first with technical parathion (20 μg/g) and then after 10 days with ring-labeled [14C]parathion. In unplanted soil, less than 5.5% of the 14C in the parathion was evolved as 14CO2 in 15 days under both flooded and nonflooded conditions. In soil planted with rice, 9.2% of the radiocarbon was evolved as 14CO2 under nonflooded conditions, and 22.6% was evolved under flooded conditions. These results suggest that soil planted with rice permits significant ring cleavage, especially under flooded conditions.

Item Type:Article
Source:Copyright of this article belongs to American Society for Microbiology.
ID Code:47760
Deposited On:12 Jul 2011 14:12
Last Modified:12 Jul 2011 14:12

Repository Staff Only: item control page