Metabolism of [4-14C]levulinic acid by etiolated and greening leaves of Hordeum vulgare |
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| Affiliation: | 1. School of Chemistry and Chemical Engineering, Xinjiang University, Urumqi, 830046, Xinjiang, China;2. Key Laboratory of Energy Materials Chemistry, Ministry of Education, Institute of Applied Chemistry, Xinjiang University, Urumqi, 830046, Xinjiang, China;1. Faculty of Materials Science and Engineering, Warsaw University of Technology, 141 Woloska St, 02-507, Warsaw, Poland;2. Faculty of Chemistry, Warsaw University of Technology, 3 Noakowskiego St, 00-664, Warsaw, Poland;3. Instytut Techniki Budowlanej, Ksawerów 21, 02-656, Warsaw, Poland;4. Faculty of Mechanical Engineering, Military University of Technology, 2 gen. S. Kaliskiego St., 00-908, Warsaw, Poland |
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| Abstract: | When etiolated barley (Hordeum vulgare L. var. Larker) shoots are incubated with [4-14C]levulinic acid, 14CO2 is evolved, and amino and organic acids are labelled. Respiratory inhibitors and short-chain fatty acids, similar in size to levulinic acid, reduce the production of 14CO2 from [4-14C]levulinic acid, while δ-aminolevulinic acid treatment or illuminating the tissue increase 14CO2 evolution. The contribution of levulinic acid metabolism to α-aminolevulinic acid biosynthesis is no greater than that of a general cellular metabolite. The data suggest that fatty acid oxidation and the citric acid cycle are involved in levulinic acid metabolism. |
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