Dictionary > Basic dye

Basic dye

Definition
noun, plural: basic dyes
(biological techniques) A dye that ionize in solution giving a positively-charged ions and is used to produce a brilliant color during staining of biological specimen
Supplement
Biological staining is a common laboratory technique applied in the study and identification of a specimen. It is carried out for use in microscopy. An unstained specimen would be difficult to observe in a typical microscope. Staining or dyeing the specimen helps in highlighting microscopic structures such as cell organelles, cells and tissues. There are different kinds of staining techniques. Examples include gram staining, endospore staining, counterstaining, differential staining, Ziehl-Neelsen stain, Haematoxylin and eosin (H&E) staining, Papanicolaou staining, PAS staining, Masson’s trichrome, Romanowsky stains, silver staining, Sudan staining, and Conklin’s staining. Dyes that are used for biological staining may be basic, neutral, or acid.
Basic dyes used in biological staining ionize in solution to give cations (positively charged ions). The cation in a basic dye is the colored component of the dye molecule that binds to anionic groups of nucleic acids or acidic mucopolysaccharides. Basic dyes stain basophilic structures such as nuclei, ribosomes and GAGs. Examples of basic dyes are methylene blue, toluidine blue, thionine, and crystal violet.
Synonym(s):

  • basic stain

Compare:

  • acid dye
  • neutral stain
  • See also:

    Mentioned in:

  • Basoplasm
  • Neutrophilous
  • Basophil adenoma


  • You will also like...

    green plant cells
    Plant Cells vs. Animal Cells

    Plant cells have plastids essential in photosynthesis. They also have an additional layer called cell wall on their cell..

    Lotic community of algal species
    Lotic Communities & Algae

    Lotic communities have conditions that are rather harsh for typical plants. Thus, the diversity of plant species in loti..

    Fossil trilobite imprint in the sediment
    Insects

    There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..

    Freshwater Ecology
    Freshwater Ecology

    Freshwater ecology focuses on the relations of aquatic organisms to their freshwater habitats. There are two forms of co..

    Buttress roots
    Roots

    This study guide tackles plant roots in greater detail. It delves into the development of plant roots, the root structur..

    dinosaurs
    The Dinosaurs

    Dinosaurs represented a major turn in the evolutionary development of organisms on Earth. The first dinosaurs were presu..

    Related Articles...

    No related articles found

    See all Related Topics