Agrobacterium-mediated viral vector-amplified transient gene expression in Nicotiana glutinosa plant tissue culture

Jason I. Collens, Hugh Mason, Wayne R. Curtis

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

A viral vector based on the bean yellow dwarf virus was investigated for its potential to increase transient gene expression. An intron-containing GUS reporter gene and the cis-acting viral regulatory elements were incorporated in the viral vector and could be complemented by the viral replication-associated proteins provided on a secondary vector. All vectors were delivered to Nicotiana glutinosa plant cell suspension or hairy root cultures via auxotrophic Agrobacterium tumefaciens. Cell culture generated greater yield of reporter gene expression than did root culture, as a result of the limitation imposed on roots to express the protein only in surface tissue containing actively dividing cells. Reporter gene expression increased for cell culture when the reporter gene construct was co-delivered with the construct supplying both viral replication associated proteins (REP and REPA); gene expression decreased when the construct supplying only the viral REP protein was co-delivered. Reporter protein expression increased from 0.091% for the reporter construct alone to 0.22% total soluble protein (% TSP) when the viral Rep-supplying vector was co-delivered with the reporter gene construct. Reporter protein was generated 3 days after the initiation of bacterial co-culture, providing for rapid generation of heterologous protein in cell culture.

Original languageEnglish (US)
Pages (from-to)570-576
Number of pages7
JournalBiotechnology Progress
Volume23
Issue number3
DOIs
StatePublished - May 2007

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Nicotiana glutinosa
Agrobacterium
reporter genes
Tobacco
tissue culture
plant tissues
Reporter Genes
Gene Expression
gene expression
cell culture
viral proteins
virus replication
Proteins
proteins
Bean yellow dwarf virus
Cell Culture Techniques
Viral Proteins
coculture
Agrobacterium tumefaciens
Agrobacterium radiobacter

ASJC Scopus subject areas

  • Food Science
  • Biotechnology
  • Microbiology

Cite this

Agrobacterium-mediated viral vector-amplified transient gene expression in Nicotiana glutinosa plant tissue culture. / Collens, Jason I.; Mason, Hugh; Curtis, Wayne R.

In: Biotechnology Progress, Vol. 23, No. 3, 05.2007, p. 570-576.

Research output: Contribution to journalArticle

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