科研之友
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摘要
information is scarce regarding the enzymatic profiles of rhizobia bacteria. on solid medium, a 7 x 3 x 3 factorial experiment was conducted to evaluate the effect of ph (5.0, 6.5 and 8.0) and temperature (25, 35 and 42 oc) on amylase activities of seven rhizobia strains. the highest enzymatic activities were found in acid environments, with some bacteria also producing significant levels at ph 8.0. among the significant interactions (p%26lt;0.01), inpa strains r-110 and r-822 exhibited maximum activities at ph 5.0 and 25 oc, with the r-822 being also a good amylase producer at 35 and 42 oc. in general terms, inpa strains r-110 and r-822 were the best enzyme producers, with amylolytic enzymatic activities higher than 2.0.
