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Biological activity of secondary metabolites produced by a plant-growth-promotingPseudomonas fluorescens was evaluated. The strain produced antibiotics phenazine (PHE), 2,4-diacetylphloroglucinol (PHL) and siderophore pyoverdin (PYO) in standard King’s B and succinic acid media, respectively. After extraction, PYO was identified by comparing the UV-spectra and moss-green color development after ‘diazotized...
It has been well recognised all over the world that inhalation of indoor radon ( 222 Rn), thoron ( 220 Rn) and their daughter products contribute a major fraction of total dose to human beings from all possible sources of natural radioactivity. North-eastern region being in a zone of high seismicity, the indoor radon and thoron map of the region will provide a valuable database for...
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