Aggregation: Production of Chimerae. Detailed ES cell growth and preparation information for aggregations. Edward W. Scott Univ. Florida Shands Cancer Center - [Read Aggregation: Production of Chimerae]
The Allium test provides a rapid screening procedure for chemicals, pollutants contaminants, etc. which may represent environmental hazards. Root growth inhibition and adverse effects upon chromosomes provide an indication of likely toxicity. - [Read Allium Test]
The Allium test provides a rapid screening procedure for chemicals, pollutants contaminants, etc. which may represent environmental hazards. Root growth inhibition and adverse effects upon chromosomes provide an indication of likely toxicity. - [Read Allium Test]
After section of the corticospinal (CS) tract in adult rats, neutralizing Nogo-A with monoclonal antibodies leads to enhancement of axonal re-growth and compensatory sprouting, accompanied by increased motor recovery. The neutralization of Nogo-A represents a promising approach for therapy after lesion if its enhancement of functional recovery can be transposed to primates. - [Read Anti-Nogo-A Treatment Protocol]
Electrotransformation of Agrobacterium with a plasmid that has been replicating in E. coli. Growth of Arabidopsis thaliana. Arabidopsis dunking. Seed Harvesting. Plant tissue culture. Very detailed protocol. Stockinger lab. PDF - [Read Arabidopsis transformation with Agrobacterium PDF]
There are two basic methods for the in vitro assay of B-galactosidase activity from yeast. They
differ mainly in the method of preparing the material for assay. Both methods are described with accompanying protocols. Method I: Assay of Crude Extracts includes: Yeast Cell Growth; Yeast Cell Harvest; B-gal assays; Bradford Assays. Method II: Permeabilized cell assay. - [Read Assay of β-Galactosidase in Yeast Protocol]
Protocol provides methods for cryofreezing and subsequent thawing of mammalian cells. Pre-confluent cells are trypsinized, pelleted, resuspended in freezing medium, and gradually frozen. When needed, frozen cells are thawed quickly under running tap water and transferred to growth medium. - [Read Cryopreservation of Mammalian Culture Cells: Preparation and Recovery of Samples Protocol]
In vitro differentiation of ES cells occurs when the cells are allowed to aggregate in suspension culture in the absence of mouse embryonic fibroblast (MEF) feeders and leukemia inhibitory factor (LIF). Hanging drops provide a uniform aggregate size, which is then expanded by continued growth in suspension culture. The embryoid bodies are then plated and allowed to differentiate further in culture. - [Read Differentiation of Embryonic Stem (ES) Cells Using the Hanging Drop Method]
Reference: Michael P. Matise, Wotjek Auerbach and Alexandra L. Joyner (2000). Gene targeting: a practical approach. Protocol excerpted from Chapter 3, Production of targeted embryonic stem cell clones. Alexandra L. Joyner (ed.), 2nd edition, Oxford Unive - [Read Embryonic Stem Cell growth media Requirements - Taconic Transgenics]
EMBRYONIC STEM CELL TEST (EST). The embryotoxic potential of chemicals is determined by the evaluation of the inhibition of differentiation of embryonic stem cells (ES) and the inhibition of growth of ES and 3T3 cells. Scientific Information Service - [Read EMBRYONIC STEM CELL TEST (EST)]
The growth conditions of microbial cell cultures and the time of sample collection should be optimized and standardized when growing cells for protein extraction. Because cells may excrete proteases and other extracellular enzymes, and compounds in the medium may interfere with extraction, wash cultures with an isotonic buffer, such as PBS or sucrose before solubilization. - [Read Extraction and Solubilization of Total Protein from Microorganisms Protocol]
Forward genetics is used to identify genes that are involved in particular biological processes. For example, genes required for disease resistance can be found by identifying mutants with reduced or increased disease resistance, genes that control flower development can be identified by searching for mutants with altered flower morphology, and genes encoding enzymes for tryptophan biosynthesis can be identified by searching for mutants that require exogenous tryptophan for growth. - [Read Forward Genetics in Arabidopsis: Finding Mutations that Cause Particular Phenotypes Protocol]
Compendium of protocols for using Aspergillus nidulans in genetic, molecular, and cell biological investigations, originally written for members of my research group. It also summarizes our common growth media and nutritional supplements, many of which originally appeared elsewhere but now are difficult to locate. Includes: Growth and storage of Aspergillus nidulans conidia; Nutritional supplements for our common auxotrophies; Double mutants; Mitotic mapping - assigning genes to chromosomes; etc - [Read Fundamentals of Growth, Storage, Genetics and Microscopy of Aspergillus nidulans Protocols]
Protocol for fungal DNA isolation. The key elements in this prep are (1) the use of young lyophilized mycelial mats....young mats (4 days growth for C. carbonum)...yield less contaminating carbohydrates and other misc. junk (2) lots of proteinase K in the extraction buffer to kill Dnases (final =0.3mg/ml). - [Read Fungal DNA Isolation Protocol]
This protocol provides a method for the synchronization of a monolayer culture of CHO cells in G1 using isoleucine deprivation. Since CHO cells can also be adapted to grow in suspension culture, this procedure can be used to obtain larger quantities of cells. When isoleucine is replaced, the cells resume growth and begin to enter S phase ~4 hours later. This method arrests almost 100% of the CHO cells in G1, and upon reversal, leads to rapid recovery of cell growth and very high cell viability. - [Read G1 Synchronization of CHO Cells by Isoleucine Deprivation Protocol]
This protocol provides a method for the synchronization of a monolayer culture of CHO cells in G1 using isoleucine deprivation. Since CHO cells can also be adapted to grow in suspension culture, this procedure can be used to obtain larger quantities of cells. When isoleucine is replaced, the cells resume growth and begin to enter S phase ~4 hours later. This method arrests almost 100% of the CHO cells in G1, and upon reversal, leads to rapid recovery of cell growth and very high cell viability. - [Read G1 Synchronization of CHO Cells by Isoleucine Deprivation Protocol]
This protocol provides a method for synchronizing cells at the G1/S border using a double treatment of thymidine, which, in excess, is an inhibitor of DNA synthesis. Cells are treated once with excess thymidine to accumulate the majority of them at G1/S; however, some cells will have stopped growth within the S phase. - [Read G1/S Phase Synchronization using Double Thymidine Synchronization Protocol]
This protocol provides a method for synchronizing cells at the G1/S border using a double treatment of thymidine, which, in excess, is an inhibitor of DNA synthesis. Cells are treated once with excess thymidine to accumulate the majority of them at G1/S; however, some cells will have stopped growth within the S phase. - [Read G1/S Phase Synchronization using Double Thymidine Synchronization Protocol]