There are few powerful techniques available to transfect insect tissues. We previously used biolistics to transfect Bombyx mori embryos, and larval and pupal tissues (Thomas J-L et al. 2001. Journal of Insect Science 1/9, Kravariti L et al. 2001. Insect Biochemistry and Molecular Biology 31: 473-479). As the main limitation was the irregularity in results we explored electroporation as an alter...

Abstract Biolistic delivery is widely used for genetic transformation but inconsistency between bombardment samples transient gene expression analysis often hinders quantitative analyses. We developed a methodology to improve the consistency of biolistic results by using double-barrel device and cell counting software. The enables strategy incorporating an internal control into each sample, whi...

We studied the effects of different media for callus induction and differentiation, and pre-culture period of immature wheat embryo culture on biolistic transformation efficiency for including antifreeze gene KN2 and bar conferring resistance to the herbicide bialaphos. The percentage of plantlets generated from induction and differentiation media without Cu2+ was lower than those cultured on d...

Methods for the transformation of barley using Agrobacterium-mediated techniques have been available for the past 10 years. Agrobacterium offers a number of advantages over biolistic-mediated techniques in terms of efficiency and the quality of the transformed plants produced. This chapter describes a simple system for the transformation of barley based on the infection of immature embryos with...

Transfection of DNA has been invaluable for biological sciences and with recent advances to organotypic brain slice preparations, the effect of various heterologous genes could thus be investigated easily while maintaining many aspects of in vivo biology. There has been increasing interest to transfect terminally differentiated neurons for which conventional transfection methods have been fraug...

Transgenes can be introduced into the cells of organotypic slice cultures using different delivery methods, such as biolistic transfection, electroporation, and viral vector-based transduction. These methods produce different patterns of transgene expression. Local injection of recombinant adeno-associated virus (rAAV) produces a small cluster of transgene-expressing neurons around the injectio...

Plant genetic engineering has become one of the most important molecular tools in the modern molecular breeding of crops. Over the last decade, significant progress has been made in the development of new and efficient transformation methods in plants. Despite a variety of available DNA delivery methods, Agrobacterium- and biolistic-mediated transformation remain the two predominantly employed ...

Dendritic spines have been investigated intensively over recent years; however, little is yet known about how they organize on the cell surface to make synaptic contacts with appropriate axons. Here we investigate spine distributions along the distal dendrites of cerebellar Purkinje cells, after biolistic labeling of intact tissue with a lipid-soluble dye. We show that the spines have a prefere...

This paper describes transformation of intact conidia of Aspergillus nidulans, auxotrophic for arginine, by using the biolistic process. The plasmid employed was pFB39, carrying the argB gene. The transformation frequency obtained was 81 transformants/microgram of DNA. Classical genetics and molecular analysis were conducted to analyse transformants and to determine in which chromosome integrat...