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The isolation of effective and ineffective mutants of cowpea rhizobium

✍ Scribed by P. M. Williams

Publisher
Springer
Year
1981
Tongue
English
Weight
369 KB
Volume
60
Category
Article
ISSN
0032-079X

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## Abstract The structures of the main carotenoid pigments from the mutant 1‐207 of __Rhizobium lupini__ were elucidated by spectroscopic techniques (UV./VIS., CD., 270 MHz ^1^H‐NMR., and MS.). Ten carotenoids were identified, namely Ξ²,β‐carotene (**1**), Ξ²,β‐caroten‐4‐one (echinenone, **2**), Ξ²,β‐