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Nitrogen-Fixing Bacteria Associated with Bark Beetles

J. Robert Bridges
Microbial Ecology
Vol. 7, No. 2 (Jun., 1981), pp. 131-137
Published by: Springer
Stable URL: http://www.jstor.org/stable/4250654
Page Count: 7
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Nitrogen-Fixing Bacteria Associated with Bark Beetles
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Abstract

Nitrogen-fixing Enterobacter agglomerans and Enterobacter spp. were consistently isolated from the bark beetle Dendroctonus terebrans. Large populations of nitrogen-fixing bacteria were found with the beetle, although no in situ acetylene reduction was demonstrated. The constant occurrence of nitrogen-fixing bacteria with D. terebrans suggests a symbiotic relationship. Nitrogen-fixing bacteria were also isolated from the bark beetles Dendroctonus frontalis and Ips avulsus.

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