Related Experiment Video
Updated: Jul 14, 2026

Assessing Structural Traits in Triticum aestivum and Zea mays for C3 and C4 Photosynthetic Differentiation Using Free-hand and Semi-thin Sections
Published on: July 12, 2024
Light-dependent assimilation of trans-cinnamate by Rhodobacter sphaeroides OU5
P Usha1, Ch Sasikala, Ch V Ramana
1Department of Plant Sciences, School of Life Sciences, University of Hyderabad, P.O. Central University, Hyderabad, 500 046, India.
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 alpha-ketoglutarate, whereas malate, succinate, fumarate, and acetate were inhibitory.
Related Concept Videos
The Calvin Benson Cycle
Channel Rhodopsins
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...
C4 Pathway and CAM
C4 Pathway
The C4 pathway is used by plants such as...
Anoxygenic Photosynthesis
Carbon-dioxide Fixation
Oxygenic Photosynthesis

