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- Title
Expression of an apoplast-directed, T- phylloplanin- GFP fusion gene confers resistance against Peronospora tabacina disease in a susceptible tobacco.
- Authors
Kroumova, Antoaneta; Sahoo, Dipak; Raha, Sumita; Goodin, Michael; Maiti, Indu; Wagner, George
- Abstract
Key message: Phylloplanins are plant-derived, antifungal glycoproteins produced by leaf trichomes. Expression of phylloplanin-GFP fusion gene to the apoplast of a blue mold susceptible tobacco resulted in increased resistance to this pathogen. Abstract: Tobaccos and certain other plants secrete phylloplanin glycoproteins to aerial surfaces where they appear to provide first-point-of-contact resistance against fungi/fungi-like pathogens. These proteins can be collected by water washing of aerial plant surfaces, and as shown for tobacco and a sunflower phylloplanins, spraying concentrated washes onto, e.g., turf grass aerial surfaces can provide resistance against various fungi/fungi-like pathogens, in the laboratory. These results suggest that natural-product, phylloplanins may be useful as broad-selectivity fungicides. An obvious question now is can a tobacco phylloplanin gene be introduced into a disease-susceptible plant to confer endogenous resistance. Here we demonstrate that introduction of a tobacco phylloplanin gene-as a fusion with the GFP gene-targeted to the apoplasm can increase resistance to blue mold disease in a susceptible host tobacco.
- Subjects
GENE expression; GLYCOPROTEINS; TOBACCO disease &; pest resistance; PERONOSPORA hyoscyami; TOBACCO blue mold; CONTACT resistance (Materials science)
- Publication
Plant Cell Reports, 2013, Vol 32, Issue 11, p1771
- ISSN
0721-7714
- Publication type
Article
- DOI
10.1007/s00299-013-1490-6