Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/100644
Type: Artigo de periódico
Title: Degradation Of Caffeine By Pseudomonas Putida Isolated From Soil Under Coffee Cultivation
Author: Yamaoka-Yano D.M.
Mazzafera P.
Abstract: Soil samples from different coffee production areas of Brazil were used for the isolation of bacteria with the ability to degrade caffeine as a sole source of nitrogen and carbon. Nineteen bacterial isolates were obtained, Pseudomonas putida being the most common and more effective in caffeine degradation. P. putida isolates were capable of growth in caffeine concentration up to 50 g/l in solid agar medium. Growth of P. putida was also observed on other methylxanthines in liquid medium. Addition of exogenous caffeine to soil samples showed degradation of the alkaloid in anon-autoclaved duplicate. Our results indicates that there may be enough caffeine in the soil to support a diverse population of caffeine degraders, which might influence allelopathic response due to caffeine. However, in situ experiments have to be conducted to adequately demonstrate the role of these bacteria in eliminating the allelopathic effect of caffeine in soil.
Editor: 
Rights: fechado
Identifier DOI: 
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-0344576329&partnerID=40&md5=08d3f9788d08c500721815c3a970cc6d
Date Issue: 1998
Appears in Collections:Unicamp - Artigos e Outros Documentos

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