Chemical structure elucidation of the carotenoids in the extremely radiation-resistant bacterium Deinococcus radiodurans R1
Zhang, X.-l.; Yang, Q.
Show abstract
The main carotenoid in the extremely radiation-resistant bacterium Deinococcus radiodurans is deinoxanthin. In this paper, based on UV-Vis, MS/MS spectra as well as the chemical properties, the other main two carotenoids in this bacterium were identified as ((all-E)-1-hydroxy-3,4-didehydro-1,2-dihydro-{beta},{Psi}-carotene- 4-one-1), and ((all-E)-1-hydroxy-3,4-didehydro-1,2,2,3-quahydro-{beta},{Psi}-carotene- 4-one-1), respectively. The fully structure elucidation for the carotenoids should help to gain a better understanding of the radiation-resistant mechanisms in this remarkable bacterium.
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