Physarorubinic acid, a polyenoyltetramic acid type plasmodial pigment from the slime moldPhysarum polycephalum (myxomycetes)
โ Scribed by Nowak, Alexander ;Steffan, Bert
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 548 KB
- Volume
- 1997
- Category
- Article
- ISSN
- 0947-3440
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โฆ Synopsis
Abstract
The polyenoyltetramic acid physarorubinic acid (2) has been isolated from microplasmodia of the slime mold Physarum polycephalum. The structure was elucidated by means of 1Dโ and 2DโNMR, IR, and UV spectroscopy and mass spectrometry. The stereochemistry was proven by synthesis of the tetramic acid unit and application of circular dichroism. It was shown that plasmodia of a white mutant strain also contain yellow pigments.
๐ SIMILAR VOLUMES
From plasmodia of the slime mould Physarum polycephalum a yellow pigment physarochrome A (1) has been obtained. Its structure has been established as all-trans N-[ll-~2-acetylamino-3-hydroxyphenyl)-2,4,6,8,1O-undecapentaenoyl]-S-glutami(l) ij;, the basis of spectroscopic evidence and hydrogenation t