Substitutions in the amino-proximal region of wheat streak mosaic virus (WSMV) HC-Pro were evaluated for effects on transmission by the wheat curl mite (Aceria tosichella Keifer). Alanine substitution at cysteine residues 16, 46 and 49 abolished vector transmission. Although alanine substitution at Cys20 had no effect, substitution with arginine reduced vector transmission efficiency. Random substitutions at other positions (Lys7 to Asn, Asn19 to Ile, and Arg45 to Lys) did not affect vector transmission. These results suggest that a zinc-finger-like motif (His13-X2-Cys16-X29-Cys46-X2-Cys49) in WSMV HC-Pro is essential for vector transmission.
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Univ Nebraska, USDA ARS, Lincoln, NE 68583 USA
Univ Nebraska, Dept Plant Pathol, Lincoln, NE 68583 USAUniv Nebraska, USDA ARS, Lincoln, NE 68583 USA
Tatineni, Satyanarayana
Hein, Gary L.
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Univ Nebraska, Dept Entomol, Lincoln, NE 68583 USAUniv Nebraska, USDA ARS, Lincoln, NE 68583 USA
机构:
Univ Nebraska, USDA ARS, Lincoln, NE 68583 USA
Univ Nebraska, Dept Plant Pathol, Lincoln, NE 68583 USAUniv Nebraska, USDA ARS, Lincoln, NE 68583 USA
Tatineni, Satyanarayana
McMechan, Anthony J.
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Univ Nebraska, Dept Entomol, Lincoln, NE 68583 USAUniv Nebraska, USDA ARS, Lincoln, NE 68583 USA
McMechan, Anthony J.
Hein, Gary L.
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Univ Nebraska, Dept Entomol, Lincoln, NE 68583 USAUniv Nebraska, USDA ARS, Lincoln, NE 68583 USA
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Univ Nebraska, Dept Entomol, Lincoln, NE 68583 USAUniv Nebraska, Dept Entomol, Lincoln, NE 68583 USA
Oliveira-Hofman, C.
Wegulo, S. N.
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Univ Nebraska, Dept Plant Pathol, Lincoln, NE 68583 USAUniv Nebraska, Dept Entomol, Lincoln, NE 68583 USA
Wegulo, S. N.
Tatineni, S.
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Univ Nebraska, Dept Plant Pathol, Lincoln, NE 68583 USA
Univ Nebraska, USDA ARS, Lincoln, NE 68583 USAUniv Nebraska, Dept Entomol, Lincoln, NE 68583 USA
Tatineni, S.
Hein, G. L.
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Univ Nebraska, Dept Entomol, Lincoln, NE 68583 USAUniv Nebraska, Dept Entomol, Lincoln, NE 68583 USA