Accumulation of the Antibiotic Phenazine-1-Carboxylic Acid in the Rhizosphere of Dryland Cereals
Accumulation of the Antibiotic Phenazine-1-Carboxylic Acid in the Rhizosphere of Dryland Cereals
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DOI：
10.1128/aem.06784-11
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发表时间：
2012-02-01
影响因子：
4.4
通讯作者：
Weller, David M.
中科院分区：
文献类型：
--
作者：
Mavrodi, Dmitri V.;Mavrodi, Olga V.;Weller, David M.
天然抗生素被认为在微生物的防御、适应性、竞争力、生物控制活性、通信和基因调节中起作用。然而，在自然环境中抗生素生产的规模和数量方面知之甚少。我们解决了这些基本问题，通过评估土著吩嗪生产（Phz（+））假单胞菌属的地理分布。以及低降水区小麦根际中广谱抗生素吩嗪-1-羧酸（PCA）的积累（
Natural antibiotics are thought to function in the defense, fitness, competitiveness, biocontrol activity, communication, and gene regulation of microorganisms. However, the scale and quantitative aspects of antibiotic production in natural settings are poorly understood. We addressed these fundamental questions by assessing the geographic distribution of indigenous phenazine-producing (Phz(+)) Pseudomonas spp. and the accumulation of the broad-spectrum antibiotic phenazine-1-carboxylic acid (PCA) in the rhizosphere of wheat grown in the low-precipitation zone (