Schöpke C., Taylor N.J., Carcamo R., Beachy R.N., Fauquet Claude. (1997). Optimization of parameters for particle bombardment of embryogenic suspension cultures of cassava (Manihot esculenta Crantz) using computer image analysis. Plant Cell Reports, 16 (8), p. 526-530. ISSN 0721-7714.
Titre du document
Optimization of parameters for particle bombardment of embryogenic suspension cultures of cassava (Manihot esculenta Crantz) using computer image analysis
Année de publication
1997
Type de document
Article
Auteurs
Schöpke C., Taylor N.J., Carcamo R., Beachy R.N., Fauquet Claude
Source
Plant Cell Reports, 1997,
16 (8), p. 526-530 ISSN 0721-7714
Tissue derived from embryonic suspension cultures of cassava was bombarded with microparticles coated with a plasmid containing the uidA gene, which codes for beta-glucuronidase (GUS). After 3 days, the effect of different bombardment parameters was evaluated by comparing the numbers of blue spots that resulted from histological GUS assays. Counting of blue spots was performed using a system comprised of a black and white video camera, a stereoscope and a personal computer. A reproducible counting method was established by optimizing GUS assay conditions, preparation of tissue samples and acquisition of video images in view of attaining the highest possible contrast between the blue spots and the surrounding tissue. The effects of bombardment pressure, microparticle size, number of bombardments, and osmotic pretreatment on GUS expression were investigated. Optimal transient expression of the uidA gene was observed after bombardment at 1100 psi, with a particle size of 1 micrometer, an osmotic pretreatment and two bombardments per sample. The highest number of blue spots observed was 2400 per square centimeter of bombarded tissue. (Résumé d'auteur)
Plan de classement
Amélioration génétique [076AMEPLA04]
;
Culture végétale in vitro [084VITRO]
Descripteurs
AMELIORATION DES PLANTES ; AMELIORATION GENETIQUE ; EMBRYON ZYGOTIQUE ; CULTURE IN VITRO ; ANALYSE D'IMAGE ; BIOLISTIQUE
