Abstract
In vitro studies on the effect of aldicarb (2-methyl-2-(methyl thio) propionaldehde-o-methyl carbamoyl oxime), a soil applied systemic insecticide, on Rhizobium japonicum revealed that the chemical (at 1,2 and 5 ppm levels) stimulated the growth of the organism initially upto 48 hr which declined thereafter upto 72 hr. The incorporation of /sup 14/C-glucose by the cells considerably reduced due to the insecticide treatment. The production of extracellular, water-soluble slime (polysacchardes) was also reduced considerably with increased concentrations of the chemical. However, the incorporation of /sup 14/C-radio-activity in the extracellular slime generally enhanced due to the treatment, upto 6 hr after injection of the radioactivity, which declined significantly later at 15 hr, indicating a qualitative difference in the extracellular polysaccharides produced by the insecticide treated cells. The insecticide treatment drastically reduced the incorporation of /sup 32/P-disodium hydrogen phosphate into Rhizobium cells, but enhanced the specific activity of the extracellular polysacchrides.
Balasubramanian, A;
Nilakantan, G
[1]
- University of Agricultural Sciences, Bangalore (India). Radiotracer Lab.
Citation Formats
Balasubramanian, A, and Nilakantan, G.
Effect of aldicarb on growth and radio-carbon (/sup 14/C) and radio-phosphorus (/sup 32/P) assimilation by Rhizobium japonicum.
India: N. p.,
1976.
Web.
Balasubramanian, A, & Nilakantan, G.
Effect of aldicarb on growth and radio-carbon (/sup 14/C) and radio-phosphorus (/sup 32/P) assimilation by Rhizobium japonicum.
India.
Balasubramanian, A, and Nilakantan, G.
1976.
"Effect of aldicarb on growth and radio-carbon (/sup 14/C) and radio-phosphorus (/sup 32/P) assimilation by Rhizobium japonicum."
India.
@misc{etde_7345008,
title = {Effect of aldicarb on growth and radio-carbon (/sup 14/C) and radio-phosphorus (/sup 32/P) assimilation by Rhizobium japonicum}
author = {Balasubramanian, A, and Nilakantan, G}
abstractNote = {In vitro studies on the effect of aldicarb (2-methyl-2-(methyl thio) propionaldehde-o-methyl carbamoyl oxime), a soil applied systemic insecticide, on Rhizobium japonicum revealed that the chemical (at 1,2 and 5 ppm levels) stimulated the growth of the organism initially upto 48 hr which declined thereafter upto 72 hr. The incorporation of /sup 14/C-glucose by the cells considerably reduced due to the insecticide treatment. The production of extracellular, water-soluble slime (polysacchardes) was also reduced considerably with increased concentrations of the chemical. However, the incorporation of /sup 14/C-radio-activity in the extracellular slime generally enhanced due to the treatment, upto 6 hr after injection of the radioactivity, which declined significantly later at 15 hr, indicating a qualitative difference in the extracellular polysaccharides produced by the insecticide treated cells. The insecticide treatment drastically reduced the incorporation of /sup 32/P-disodium hydrogen phosphate into Rhizobium cells, but enhanced the specific activity of the extracellular polysacchrides.}
journal = []
volume = {10:1}
journal type = {AC}
place = {India}
year = {1976}
month = {Jan}
}
title = {Effect of aldicarb on growth and radio-carbon (/sup 14/C) and radio-phosphorus (/sup 32/P) assimilation by Rhizobium japonicum}
author = {Balasubramanian, A, and Nilakantan, G}
abstractNote = {In vitro studies on the effect of aldicarb (2-methyl-2-(methyl thio) propionaldehde-o-methyl carbamoyl oxime), a soil applied systemic insecticide, on Rhizobium japonicum revealed that the chemical (at 1,2 and 5 ppm levels) stimulated the growth of the organism initially upto 48 hr which declined thereafter upto 72 hr. The incorporation of /sup 14/C-glucose by the cells considerably reduced due to the insecticide treatment. The production of extracellular, water-soluble slime (polysacchardes) was also reduced considerably with increased concentrations of the chemical. However, the incorporation of /sup 14/C-radio-activity in the extracellular slime generally enhanced due to the treatment, upto 6 hr after injection of the radioactivity, which declined significantly later at 15 hr, indicating a qualitative difference in the extracellular polysaccharides produced by the insecticide treated cells. The insecticide treatment drastically reduced the incorporation of /sup 32/P-disodium hydrogen phosphate into Rhizobium cells, but enhanced the specific activity of the extracellular polysacchrides.}
journal = []
volume = {10:1}
journal type = {AC}
place = {India}
year = {1976}
month = {Jan}
}