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Soil Inoculation with Pseudomonas Aeruginosa 3MT Eliminates the Inhibitory Effect of 3- Chloro- and 4-Chlorobenzoate on Tomato Seed Germination.

Ajith Kumar, P. V. and Gangadhara, K. P. and Manilal, P. and Kunhi, A. A. M. (1999) Soil Inoculation with Pseudomonas Aeruginosa 3MT Eliminates the Inhibitory Effect of 3- Chloro- and 4-Chlorobenzoate on Tomato Seed Germination. Soil Biology and Biochemistry, 30 (8/9). pp. 1053-1059.

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Abstract

The e�ects of 3-chloro- and 4-chlorobenzoate (3-CBA, 4-CBA) on the germination of di�er- ent crop seeds were tested. Brinjal (egg plant) and tomato seeds were highly sensitive to 200 mg lÿ1 of either 3-CBA or 4-CBA and showed marked reduction in germination percentage and seedling vigour index. A number of abnormalities were observed in all seedlings at higher concentrations of the chemi- cals. At 400 mg mlÿ1 germination of tomato seeds was completely inhibited on moist ®lter paper. A marked reduction in protease activity was observed in germinating tomato seeds treated with these chemicals. Inoculation of 3-CBA- or 4-CBA-treated soil with a chlorobenzoate-degrading Pseudomonas aeruginosa 3mT (1 mg gÿ1 soil) completely protected the tomato seeds and seedlings. The inoculated bac- terial strain grew well in the soil utilizing the chlorobenzoates and developed 1�109 and 8�108 cfu gÿ1 in 3-CBA- and 4-CBA-treated soil, respectively, as against of 3�107 cfu gÿ1 in the absence of these chlorobenzoates.

Item Type: Article
Uncontrolled Keywords: soil microorganisms, tomato seeds, environ- mental pollution
Subjects: 500 Natural Sciences and Mathematics > 05 Earth Sciences > 02 Soil Sciences
500 Natural Sciences and Mathematics > 07 Life Sciences > 04 Microbiology
600 Technology > 08 Food technology > 23 Vegetables > 03 Tomato
Divisions: Food Microbiology
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 20 Feb 2012 06:40
Last Modified: 18 Nov 2016 10:15
URI: http://ir.cftri.com/id/eprint/2193

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