Phalloidin binds specifically to F-actin, and fluorescent-tagged phalloidin stains the actin skeleton in cells in a manner that is very close to the staining pattern seen using anti-actin antibody. - [Read Actin Staining in Fixed Yeast Cells Protocol]
Peroxisomes of higher eukaryotes, glycosomes of kinetoplastids, & glyoxysomes of plants are related microbody organelles that perform differing metabolic functions tailored to their cellular environments. The close evolutionary relationship of these organelles is most clearly evidenced by the conservation of proteins involved in matrix protein import and biogenesis.
glycosome can be viewed as an offshoot of the peroxisomal lineage with additional metabolic functions, specifically glycolysi - [Read Biogenesis and Function of Peroxisomes and Glycosomes]
The visibility of the faint star light is enormously enhanced against a dark background. This principle is applied in darkfield (also called darkground) microscopy, a simple and popular method for making unstained transparent specimens clearly visible. Such objects often have refractive indices very close in value to that of their surroundings and are difficult to image in conventional brightfield microscopy. - [Read Darkfield Illumination]
Fixation is to preserve cells and tissue constituents in as close a life-like state as possible and to allow them to undergo further preparative procedures without change. Fixation arrests autolysis and bacterial decomposition and stabilises the cellular and tissue constituents so that they withstand the subsequent stages of tissue processing. Great detailed guide with protocols. Anthony S-Y Leong. - [Read Fixation and Fixatives - A great guide]
Near-field scanning optical microscopy can achieve spatial resolution performance beyond the classical diffraction limit by employing a sub-wavelength light source or detector positioned in close proximity to a specimen. Such a sub-wavelength source usually consists of an aperture at the end of a tapered probe, which functions basically as a wave guide. Includes info.: Fiber Probe Fabrication; Pulling Method; Meniscus Etching; Selective Etching; Apertureless and Alternative Probe Designs etc. - [Read Near-Field Scanning Optical Microscopy: NSOM Probes]
This protocol a protocol on how to generate transfected embryonic stem (ES) cell clones. The previous protocol in this series is the Protocol for Electroporation of ES cells. The next protocol in the series is the Protocol on Disaggregation, Expansion, and Freezing of Transfected ES Clones.