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Titolo:
MECHANISMS OF RESISTANCE TO DICLOFOP OF 2 WILD OAT (AVENA-FATUA) BIOTYPES FROM THE WILLAMETTE VALLEY OF OREGON
Autore:
SEEFELDT SS; FUERST EP; GEALY DR; SHUKLA A; IRZYK GP; DEVINE MD;
Indirizzi:
WASHINGTON STATE UNIV,USDA ARS PULLMAN WA 99164 WASHINGTON STATE UNIV,DEPT CROP & SOIL SCI PULLMAN WA 99164 USDA ARS STUTTGART AR 72160 UNIV SASKATCHEWAN,DEPT CROP SCI & PLANT ECOL SASKATOON SK S7N 5A8 CANADA WASHINGTON STATE UNIV,DEPT CROP & SOIL SCI PULLMAN WA 99164
Titolo Testata:
Weed science
fascicolo: 4, volume: 44, anno: 1996,
pagine: 776 - 781
SICI:
0043-1745(1996)44:4<776:MORTDO>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
ACETYL-COA CARBOXYLASE; HERBICIDE RESISTANCE; CROSS-RESISTANCE; WHEAT; SELECTIVITY; METABOLISM;
Keywords:
HERBICIDE RESISTANCE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
16
Recensione:
Indirizzi per estratti:
Citazione:
S.S. Seefeldt et al., "MECHANISMS OF RESISTANCE TO DICLOFOP OF 2 WILD OAT (AVENA-FATUA) BIOTYPES FROM THE WILLAMETTE VALLEY OF OREGON", Weed science, 44(4), 1996, pp. 776-781

Abstract

Laboratory experiments were conducted to determine the mechanism of resistance to diclofop in two wild oat biotypes (designated 'B' and 'C'biotypes) from the Willamette Valley of Oregon. Resistance could not be attributed to differential absorption, translocation, or metabolismof diclofop, Resistance was not correlated with membrane plasmalemma repolarization following diclofop acid treatment. Compared to a susceptible ('S') wild oat biotype, acetyl CoA carboxylase from the B and C biotypes showed a 10.3 and 4.5 fold increase in the level of resistance, respectively, to diclofop acid. Cross-resistance to fenoxaprop acidwas 5.5 and 7.3 times higher in the B and C biotypes, respectively than the S biotype. Correlation between resistance at the whole plant level and at the ACCase level was good for diclofop and fenoxaprop in the B biotype. For the C biotype, this correlation was not as good. Possible reasons for the discrepancy are given.

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Documento generato il 21/09/20 alle ore 19:15:06