Abstract
Four unusual polyamines were detected in the Gram-negative, aerobic, nonsporulating eubacterium, Thermomicrobium roseum (ATCC 27502), an obligate for thermophily, in which no peptidoglycan dianmino acid occurs. They were identified as caldopentamine [NH 2(CH 2) 3NH(CH 2) 3 NH(CH 2) 3NH(CH 2) 3NH 2], homocaldopentamine [NH 2(CH 2) 3NH(CH 2) 3NH(CH 2) 3 NH(CH 2) 4NH 2], thermopentamine [NH 2(CH 2) 3 NH(CH 2) 3NH(CH 2) 4NH(CH 2) 3NH 2] and caldohexamine [NH 2(CH 2) 3NH(CH 2) 3NH (CH 2) 3NH(CH 2) 3NH(CH 2) 3NH 2] by high-performance liquid chromatography and gas chromatography-mass spectrometry. These unusual pentaamines and hexaamine were major polyamines in the organism grown at 60–70°C.
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