Abstract
An extract of small molecules (molecular weight less than 500) of the slime mold Physarum polycephalum undergoes a shift in ultraviolet-visible absorption spectrum upon illumination. This illumination also confers on the extract the ability to induce sporulation when injected into a starved, unilluminated slime mold. The spectral shift and appearance of the sporulation-inducing activity both occur regardless of whether the illumination is carried out on an intact slime mold or on the plasmodium-free extract itself. Thin-layer chromatography resolves the slime mold extract into four major visible fractions. One of these has high sporulation-inducing activity after illumination in vitro.
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Selected References
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- Chet I., Rusch H. P. Induction of spherule formation in Physarum polycephalum by polyols. J Bacteriol. 1969 Nov;100(2):673–678. doi: 10.1128/jb.100.2.673-678.1969. [DOI] [PMC free article] [PubMed] [Google Scholar]
- LeStourgeon W. M., Rusch H. P. Nuclear acidic protein changes during differentiation in Physarum polycephalum. Science. 1971 Dec 17;174(4015):1233–1236. doi: 10.1126/science.174.4015.1233. [DOI] [PubMed] [Google Scholar]
- Nair P., Zabka G. G. Pigmentation and sporulation in selected Myxomycetes. Am J Bot. 1966 Oct;53(9):887–892. [PubMed] [Google Scholar]
- Sauer H. W., Babcock K. L., Rusch H. P. Changes in RNA synthesis associated with differentiation (sporulation) in Physarum polycephalum. Biochim Biophys Acta. 1969 Dec 16;195(2):410–421. doi: 10.1016/0005-2787(69)90648-0. [DOI] [PubMed] [Google Scholar]
- Sauer H. W., Babcock K. L., Rusch H. P. Sporulation in Physarum polycephalum: a model system for studies on differentiation. Exp Cell Res. 1969 Oct;57(2):319–327. doi: 10.1016/0014-4827(69)90156-6. [DOI] [PubMed] [Google Scholar]
- Wormington W. M., Cho C. G., Weaver R. F. Sporulation-inducing factor in slime mould Physarum polycephalum. Nature. 1975 Jul 31;256(5516):413–414. doi: 10.1038/256413a0. [DOI] [PubMed] [Google Scholar]