slime layer

Examples of slime layer in the following topics:

• Glycocalyx

  • A glycocalyx(capsule or slime layer)is an external coating of bacteria with protective function, made mostly of polysaccharides.
  • A distinct, gelatinous glycocalyx is called abacterial capsule, whereas an irregular, diffuse layer is called a slime layer .
  • A slime layer in bacteria is an easily removed, diffuse, unorganized layer of extracellular material that surrounds bacteria cells.
  • The slime layer also allows bacteria to adhere to smooth surfaces such as prosthetic medical devices and catheters.
  • The slime layer is not to be confused with the S-layer, a separate and highly organised glycoprotein layer surrounding many bacterial cells.

• Anaerobiosis and N2 Fixation

  • Some microbes have a proteoglycan rich extra cellular matrix which traps a layer of water, often referred to as a slime layer.
  • This slime layer acts as a barrier for oxygen.

• Protist Life Cycles and Habitats

  • The slime molds are categorized on the basis of their life cycles into plasmodial or cellular types.
  • Plasmodial slime molds are composed of large, multinucleate cells and move along surfaces like an amorphous blob of slime during their feeding stage .
  • The slime mold glides along, lifting and engulfing food particles, especially bacteria.
  • The cellular slime molds function as independent amoeboid cells when nutrients are abundant .
  • As with plasmodial slime molds, the spores are disseminated and can germinate if they land in a moist environment.

• Amoebozoa and Opisthokonta

  • The best known and most well-studied member of this group is the slime mold.
  • The slime molds are categorized on the basis of their life cycles into plasmodial or cellular types.
  • Plasmodial slime molds are composed of large, multinucleate cells that move along surfaces like an amorphous blob of slime during their feeding stage.
  • Food particles are lifted and engulfed into the slime mold as it glides along.
  • The cellular slime molds function as independent amoeboid cells when nutrients are abundant .

• Biofilms

  • Biofilm EPS, also referred to as slime, is a polymeric conglomeration composed of extracellular DNA, proteins, and polysaccharides.
  • One benefit of this environment is increased resistance to detergents and antibiotics, as the dense extracellular matrix and the outer layer of cells protect the interior of the community.

• Mucosa

  • It is the absorptive and secretory layer of the GI tract.
  • The GI tract is composed of four layers.
  • Each layer has different tissues and functions.
  • The mucosa is the innermost layer, and functions in absorption and secretion.
  • The most variation is seen in the epithelium tissue layer of the mucosa.

• Serosa

  • Serosa consists of a secretory epithelial layer and a thin connective tissue layer that reduce the friction from muscle movement.
  • In anatomy, serous membrane (or serosa) is a smooth membrane consisting of a thin layer of cells, which secrete serous fluid, and a thin connective tissue layer .
  • Each serous membrane is composed of a secretory epithelial layer and a connective tissue layer underneath.
  • The epithelial layer, known as mesothelium, consists of a single layer of avascular flat nucleated cells (simple squamous epithelium) which produce the lubricating serous fluid.
  • The layer in contact with the organ is known as the visceral layer, while the parietal layer is in contact with the body wall.

• The Deltaproteobacteria

  • The myxobacteria ("slime bacteria") are a group of bacteria that predominantly live in the soil and feed on insoluble organic substances.

• What is Skin?

  • Our skin is made of three general layers.
  • The epidermis is a thin layer of skin. 
  • It is the most superficial layer of skin, the layer you see with your eyes when you look at the skin anywhere on your body. 
  • This layer helps to repel water.
  • The deepest layer of the skin is called the subcutaneous layer, the subcutis, or the hypodermis. 

• Layers of the Heart Walls

  • These tissue layers are highly specialized and perform different functions.
  • The outer layer of the heart wall is the epicardium.
  • The epicardium refers to both the outer layer of the heart and the inner layer of the serous visceral pericardium, which is attached to the outer wall of the heart.
  • The epicardium is a thin layer of elastic connective tissue and fat that serves as an additional layer of protection from trauma or friction for the heart under the pericardium.
  • The middle layer of the heart wall is the myocardium—the muscle tissue of the heart and the thickest layer of the heart wall.