Light-Dependent Assimilation of <Emphasis Type="Italic">trans</Emphasis>-Cinnamate by <Emphasis Type="Italic">Rhodobacter sphaeroides</Emphasis> OU5 |
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Authors: | P?Usha Ch?Sasikala Email author" target="_blank">Ch?V?RamanaEmail author |
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Institution: | (1) Department of Plant Sciences, School of Life Sciences, University of Hyderabad, P.O. Central University, Hyderabad, 500 046, India;(2) Environmental Microbial Biotechnology Laboratory, Center for Environment, IST, JNT University, Kukatpally, Hyderabad, 500 072, India |
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Abstract: | We present a novel light-dependent metabolism of an aromatic compound (trans-cinnamate) that is assimilatory rather than dissimilatory. Light-dependent assimilation of trans-cinnamate was observed by both growing and resting cells of Rhodobacter sphaeroides OU5. Trans-cinnamate assimilation could be correlated with simultaneous formation of both phenylalanine and tyrosine at near-stoichiometric
ratios. Trans-cinnamate assimilation was promoted by carbon source and electron donors, such as glucose, pyruvate, or α-ketoglutarate,
whereas malate, succinate, fumarate, and acetate were inhibitory. |
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