High yields of cytoplasts from protoplasts of Lolium perenne and Beta vulgaris using gradient centrifugation View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1992-12

AUTHORS

H. F. van Ark, R. D. Hall, J. Creemers-Molenaar, F. A. Krens

ABSTRACT

Methods for the isolation of cytoplasts from suspension culture-derived protoplasts of the monocot Lolium perenne (perennial ryegrass) and the dicot Beta vulgaris (sugarbeet) have been determined. After comparing a range of gradients it was found that a discontinuous sucrose/mannitol gradient gave the highest cytoplast yields for both species tested: of the protoplasts loaded onto the gradient, for Beta >30% and for Lolium up to 45% could be recovered as cytoplasts. Sufficient protoplasts could be loaded onto the gradient to produce suitable numbers of cytoplasts for use in asymmetric somatic hybridisation experiments. Cytoplasts could be isolated from several suspension cultures of different ages. The cytoplast fraction was recovered from the upper part of the gradient in all cases and was only slightly contaminated (2–8%) with protoplasts. Lolium cytoplasts were small, evacuolate cells with granular cytoplasm. In contrast, Beta cytoplasts were larger and predominantly vacuolate. Both contained mitochondria as determined using fluorescence staining. More... »

PAGES

223-232

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf00036228

DOI

http://dx.doi.org/10.1007/bf00036228

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1052210798


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