ISSN:
1573-0972
Keywords:
Bacillus thuringiensis
;
chickpea
;
Helicoverpa armigera
;
legume plants
;
mung bean
;
on phylloplane
;
pea
;
pigeon pea
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Abstract Bacillus thuringiensis (Bt) isolates were present on the phylloplanes of chickpea (Cicer arietinum), pigeon pea (Cajanus cajan), pea (Pisum sativum) and mung bean (Vigna radiata). Bt index (ratio of the number of Bt colonies to the total number of spore-forming colonies per g of leaves) differed significantly among these plants, with the highest (0.20) in the chickpea phylloplane, followed by pigeon pea (0.17). Bt population of the chickpea phylloplane varied with plant age, being maximal in 45-day-old plants. Diversity was observed among Bt isolates for growth (up to 10-fold difference), antibiotic resistance, PCR product profile and toxicity to Helicoverpa armigera. Two isolates with high activity towards H. armigera were found.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1008988111932
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