Methodology for identification of soil bacteria by manipulation of primary colors/ Metodologia para identificacao de bacterias do solo atraves da manipulacao de cores primarias/ Metodologia para identificacion de bacterias del suelo a traves de la manipulacion de colores primarios

Due to their vital functions in nature, bacteria are the subject of constant study. They are applied to degrade pollutants in a process of bioremediation, in contaminated areas, very common in coastal regions, constantly attacked by oil exploration and transportation, and in agriculture in order to improve the quality of cultivation techniques as well as of the cultivated products. Some bacteria found in the Massambaba sandback in Arraial do Cabo, RJ, have characteristics related to their colors that attracted the attention of the researchers of the Laboratory of Ecotoxicology and Environmental Microbiology, LEMAM. Light is an electromagnetic radiation that can be perceived visually through colors when it interacts with the environment. Some systems can eliminate the subjective characteristics of color interpretation, creating patterns of representation for them. This article is about an experimental study, and uses the manipulation of the primary colors verified in digital photographs of cultures of bacteria. The colors are transformed mathematically, transiting between spaces of color representation being identified in each of them and represented in the RGB color cube and the chromaticity diagram. Through the methodology proposed in this work, it was possible to verify the predominant wavelengths in the color of each species, as well as to identify them by their locations in the chromaticity diagram.. Keywords: Bacteria, Colorimetry, Electromagnetic Spectrum, Chromaticity Diagram. Por possuirem funcoes vitais na natureza, as bacterias sao constante objeto de estudos. Elas sao aplicadas para degradar poluentes em um processo de biorremediacao, em areas contaminadas, muito comuns em regioes litoraneas, que estao sempre sendo agredidas em consequencia da exploracao e transporte de petroleo, e na agricultura com a finalidade de melhorar, em varios aspectos, a qualidade das tecnicas de cultivo e dos produtos cultivados. Algumas bacterias encontradas na restinga de Massambaba em Arraial do Cabo, RJ, possuem caracteristicas relacionadas as suas cores que chamaram a atencao dos pesquisadores do Laboratorio de Ecotoxicologia e Microbiologia Ambiental, LEMAM. A luz e uma radiacao eletromagnetica que pode ser percebida visualmente atraves de cores quando esta interage com o meio. Alguns sistemas podem eliminar as caracteristicas subjetivas de interpretacao das cores, criando padroes de representacao para as mesmas. Este artigo e sobre um estudo experimental e util