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Light-Dependent Assimilation of trans-Cinnamate by Rhodobacter sphaeroides OU5

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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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Acknowledgments

Council of Scientific and Industrial Research, Government of India, is acknowledged for financial support.

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Authors and Affiliations

  1. Department of Plant Sciences, School of Life Sciences, University of Hyderabad, P.O. Central University, Hyderabad, 500 046, India

    P. Usha & Ch. V. Ramana

  2. Environmental Microbial Biotechnology Laboratory, Center for Environment, IST, JNT University, Kukatpally, Hyderabad, 500 072, India

    Ch. Sasikala

Authors
  1. P. Usha
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  2. Ch. Sasikala
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  3. Ch. V. Ramana
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Correspondence to Ch. V. Ramana.

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Usha, P., Sasikala, C. & Ramana, C.V. Light-Dependent Assimilation of trans-Cinnamate by Rhodobacter sphaeroides OU5. Curr Microbiol 54, 410–413 (2007). https://doi.org/10.1007/s00284-006-0440-8

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  • DOI: https://doi.org/10.1007/s00284-006-0440-8

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