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Volumn 279, Issue 5359, 1998, Pages 2113-2115

Transcriptional and posttranscriptional plant gene silencing in response to a pathogen

Author keywords

[No Author keywords available]

Indexed keywords

AGRICULTURE; ARTICLE; BRASSICA; CAULIFLOWER MOSAIC VIRUS; GENE REPRESSION; NONHUMAN; PRIORITY JOURNAL; SILENT GENE; TRANSGENIC PLANT; VIRUS INFECTION;

EID: 0032571483     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.279.5359.2113     Document Type: Article
Times cited : (178)

References (25)
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    • R. B. Flavell, Proc. Natl. Acad. Sci. U.S.A. 91, 3490 (1994). M. A. Matzke and A. J. Matzke, Plant Physiol. 107, 679 (1995); P. Meyer and H. Sadler, Annu. Rev. Plant Physiol. Plant Mol. Biol. 47, 23 (1996); C. B. Taylor, Plant Cell 9, 1245 (1997).
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    • R. B. Flavell, Proc. Natl. Acad. Sci. U.S.A. 91, 3490 (1994). M. A. Matzke and A. J. Matzke, Plant Physiol. 107, 679 (1995); P. Meyer and H. Sadler, Annu. Rev. Plant Physiol. Plant Mol. Biol. 47, 23 (1996); C. B. Taylor, Plant Cell 9, 1245 (1997).
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    • note
    • Infection of B. napus was established by mechanical inoculation of seedlings (second true leaf) with 1 μg of CaMV virions (isolate Cabb B-JI) in 10 μl of 10 mM sodium phosphate buffer (pH 7.0) containing Celite (Celite Corp.) abrasive. Plants were propagated in a containment greenhouse supplemented with illumination to 16 hours per day at 18° to 22°C.
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    • Baulcombe, D.C.1
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    • note
    • Total nucleic acid was extracted as described (11). CaMV DNA and RNA were analyzed by Southern and Northern blotting, respectively, with the appropriate probes.
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    • R. Hull and S. N. Covey, Nucleic Acids Res. 11, 1881 (1983); D. S. Turner, D. G. McCallum, S. N. Covey, J. Virol. 70, 5414 (1996).
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    • note
    • + membranes (Amersham).
  • 21
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    • note
    • Plant protein was extracted and NPTII was measured with an enzyme-linked immunosorbent assay (CP Laboratories).
  • 23
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    • Leaf disks (12 mm in diameter) were collected and treated as described [R. A. Jefferson, T. A. Kavanagh, M. W. Bevan, EMBO J. 6, 3901 (1987)] for histochemical detection of GUS activity.
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  • 24
    • 7144250223 scopus 로고    scopus 로고
    • note
    • In situ hybridization to detect CaMV was performed as described (15) with the same leaf disks as those used for histochemical detection of GUS activity.
  • 25
    • 7144251541 scopus 로고    scopus 로고
    • note
    • We thank N. Owen and C. Jones for producing transgenic lines, J. Jones for transformation constructs, and A. Lángara for advice on nuclear run-on assays. This work was supported by the U.K. Biotechnology and Biological Sciences Research Council and covered by license PHF 1491/982/34 of the Ministry of Agriculture, Fisheries and Food.


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