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Effect of a pesticide on the extracellular slime production and pathogenicity of a non-target phytopathogen

Abstract

Aldicarb (2 methyl thio) propionaldehyde-0-(methyl carbamoyl oxime), a systemic insecticide treatment altered the quantity and the quality of the extracellular polysaccharides (slime) produced by Pseudomonas solanacearum. Although 5 ppm (normal dose) aldicarb treatment reduced the quality of polysaccharides produced by the cells, the incorporation of /sup 14/C (glucose) label and the reducing sugar contents was higher than the other treatments. Chromatographic analysis of the hydrolysed polysaccharides showed that aldicarb treatment altered their qualitative composition also. The extracellular polysaccharides produced by the pathogen treated with 5 ppm aldicarb caused wilting of tomato seedlings earlier than others, indicating thereby, that the wilt inducing factor in the slime was altered by the pesticide treatment. The limited translocation of the /sup 14/C labelled polysaccharides in the wilted seedlings indicated mechanical blocking of the vascular system of the plants.
Authors:
Balasubramanian, A; [1]  Nilakantan, Gita [2] 
  1. Tamil Nadu Agricultural Univ., Coimbatore (India)
  2. University of Agricultural Sciences, Bangalore (India)
Publication Date:
Dec 01, 1978
Product Type:
Journal Article
Reference Number:
AIX-10-463317; EDB-80-037014
Resource Relation:
Journal Name: J. Nucl. Agric. Biol.; (India); Journal Volume: 7:4
Subject:
60 APPLIED LIFE SCIENCES; PESTICIDES; BIOLOGICAL EFFECTS; EFFICIENCY; PSEUDOMONAS; CARBON 14 COMPOUNDS; GLUCOSE; LABELLED COMPOUNDS; PLANT DISEASES; SEEDLINGS; TOMATOES; TRACER TECHNIQUES; TRANSLOCATION; ALDEHYDES; BACTERIA; CARBOHYDRATES; FOOD; HEXOSES; ISOTOPE APPLICATIONS; MICROORGANISMS; MONOSACCHARIDES; ORGANIC COMPOUNDS; SACCHARIDES; VEGETABLES; 553001* - Agriculture & Food Technology- Tracer Techniques- (-1987)
OSTI ID:
5657747
Country of Origin:
India
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: JNABD
Submitting Site:
INIS
Size:
Pages: 147-149
Announcement Date:
Jul 01, 1979

Citation Formats

Balasubramanian, A, and Nilakantan, Gita. Effect of a pesticide on the extracellular slime production and pathogenicity of a non-target phytopathogen. India: N. p., 1978. Web.
Balasubramanian, A, & Nilakantan, Gita. Effect of a pesticide on the extracellular slime production and pathogenicity of a non-target phytopathogen. India.
Balasubramanian, A, and Nilakantan, Gita. 1978. "Effect of a pesticide on the extracellular slime production and pathogenicity of a non-target phytopathogen." India.
@misc{etde_5657747,
title = {Effect of a pesticide on the extracellular slime production and pathogenicity of a non-target phytopathogen}
author = {Balasubramanian, A, and Nilakantan, Gita}
abstractNote = {Aldicarb (2 methyl thio) propionaldehyde-0-(methyl carbamoyl oxime), a systemic insecticide treatment altered the quantity and the quality of the extracellular polysaccharides (slime) produced by Pseudomonas solanacearum. Although 5 ppm (normal dose) aldicarb treatment reduced the quality of polysaccharides produced by the cells, the incorporation of /sup 14/C (glucose) label and the reducing sugar contents was higher than the other treatments. Chromatographic analysis of the hydrolysed polysaccharides showed that aldicarb treatment altered their qualitative composition also. The extracellular polysaccharides produced by the pathogen treated with 5 ppm aldicarb caused wilting of tomato seedlings earlier than others, indicating thereby, that the wilt inducing factor in the slime was altered by the pesticide treatment. The limited translocation of the /sup 14/C labelled polysaccharides in the wilted seedlings indicated mechanical blocking of the vascular system of the plants.}
journal = []
volume = {7:4}
journal type = {AC}
place = {India}
year = {1978}
month = {Dec}
}