INVESTIGADORES
INCHAUSSANDAGUE Marina Elizabeth
artículos
Título:
Structural color in Myxomycetes
Autor/es:
MARINA E. INCHAUSSANDAGUE; DIANA C. SKIGIN; CECILIA CARMARÁN; SONIA ROSENFELDT
Revista:
OPTICS EXPRESS
Editorial:
OPTICAL SOC AMER
Referencias:
Año: 2010 vol. 18 p. 16055 - 16063
ISSN:
1094-4087
Resumen:
In this paper we report evidence of structural color in Myxomycetes, a group of eukaryotic microorganisms with an uncertain taxonomic position. We investigated the Diachea leucopoda, which belongs to the Physarales order, Myxomycetes class, and found that its peridium -protective layer that encloses the mass of spores- is basically a corrugated layer of a transparent material, which produces a multicolored pointillistic effect, characteristic of this species. Scanning (SEM) and transmission (TEM) electron microspcopy techniques have been employed to characterize the samples. A simple optical model of a planar slab is proposed to calculate the reflectance. The chromaticity coordinates are obtained, and the results confirm that the color observed is a result of an interference effect.
