The most immature blood cell that is considered a plasma cell instead of a B cell is the plasmablast. Plasmablasts secrete more antibodies than B cells, but less than plasma cells.
Gentian Violet. Gentian violet is a water soluble dye (coloring substance) used primarily in medicine to stain bacteria, but also in other histological procedures. It is not derived from gentians, but got its name since it is pink-violet like some gentians in the genera of Centaurium, Gentiana, and Gentianella.
Indigo is a color that is traditionally regarded as a color on the visible spectrum, as well as one of the seven colors of the rainbow: the color between blue and violet. Although traditionally considered one of seven major spectral colors, its actual position in the electromagnetic spectrum is controversial.Indigo is a deep and bright color close to the color wheel blue (a primary color in the RGB color space), as well as to some variants of ultramarine.The color indigo was named after the indigo dye derived from the plant Indigofera tinctoria and related species.he color 'violet-blue' is a bluish tone of blue-violet. The Crayola color called 'violet-blue' is displayed at right. The Crayola crayon color called violet-blue was formulated in 1949 and continued as a Crayola color until 1990.