| |
| DOI: | 10.1614/WS-D-11-00200.1 |
|---|
| Web URL(s): | http://www.bioone.org/doi/full/10.1614/WS-D-11-00200.1
Last checked: 08/13/2012
Access conditions: Item is within a limited-access website
http://www.bioone.org/doi/pdf/10.1614/WS-D-11-00200.1
Last checked: 08/13/2012
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
|---|
| Publication Type:
| Refereed |
|---|
| Author(s): | Perry, D. H.;
McElroy, J. S.;
Dane, F.;
van Santen, E.;
Walker, R. H. |
|---|
| Author Affiliation: | Perry: Former Graduate Research Assistant; McElroy: Associate Professor; van Santen and Walker: Professor, Department of Agronomy and Soils; Dane: Professor, Department of Horticulture, Auburn University, Auburn, AL |
|---|
| Title: | Triazine-resistant annual bluegrass (Poa annua) populations with Ser264 mutation are resistant to amicarbazone |
|---|
| Section: | Physiology, chemistry, and biochemistry
Other records with the "Physiology, chemistry, and biochemistry" Section
|
|---|
| Source: | Weed Science. Vol. 60, No. 3, July-September 2012, p. 355-359. |
|---|
| Publishing Information: | Champaign, Illinois: Weed Science Society of America |
|---|
| # of Pages: | 5 |
|---|
| Related Web URL: | http://www.bioone.org/doi/abs/10.1614/WS-D-11-00200.1
Last checked: 08/13/2012
Notes: Abstract only |
|---|
| Keywords: | TIC Keywords: Amicarbazone; Anilazine; Atrazine; Herbicide efficacy; Herbicide evaluation; Herbicide resistance; Photochemical efficiency; Poa annua; Simazine
|
|---|
| Trade Names: | Triazine |
|---|
| Abstract/Contents: | "Amicarbazone is a photosystem II (PSII)-inhibiting herbicide in the triazolinone family, which is similar in mode of action to the triazines. Annual bluegrass is a cool-season weed and has shown resistance to some PSII-inhibiting herbicides. The objective was to evaluate triazine-resistant and -susceptible annual bluegrass populations for potential cross-resistance to amicarbazone. Two triazine-resistant (MS-01, MS-02) and triazine-susceptible (AL-01, COM-01) annual bluegrass populations were treated with amicarbazone, atrazine, and simazine at 0.26, 1.7, and 1.7 kg ai ha-1, respectively. All herbicide treatments controlled the susceptible populations greater than 94% 2 wk after treatment (WAT). No visual injury of MS-01 and MS-02 was observed at any time following herbicide treatment. Quantum yield (ΦPSII) of annual bluegrass was measured 0 to 72 h after application (HAA) to determine the photochemical effects of amicarbazone compared to other PSII inhibitors. ΦPSII of triazine-susceptible populations was reduced at all measurement times by all three herbicides. However, amicarbazone decreased ΦPSII of susceptible populations faster and greater than atrazine and simazine at most measurement times. Amicarbazone did not reduce ΦPSII of the MS-01 population. Amicarbazone significantly reduced ΦPSII of the MS-02 population during several measurement timings; however, these reductions were short-lived compared to the susceptible populations and no trend in ΦPSII reduction was observed. Sequencing of the psbA gene revealed a Ser to Gly substitution at amino acid position 264 known to confer resistance to triazine herbicides. These data indicate amicarbazone efficiently inhibited PSII of susceptible annual bluegrass populations; however, triazine-resistant annual bluegrass populations with Ser264 to Gly mutations are cross-resistant to amicarbazone." |
|---|
| Language: | English |
|---|
| References: | 31 |
|---|
| Note: | Figures
Tables
Graphs |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Perry, D. H., J. S. McElroy, F. Dane, E. van Santen, and R. H. Walker. 2012. Triazine-resistant annual bluegrass (Poa annua) populations with Ser264 mutation are resistant to amicarbazone. Weed Sci. 60(3):p. 355-359. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=209829 |
| If there are problems with this record, send us feedback about record 209829. |
| Choices for finding the above item: |
|---|
| DOI: 10.1614/WS-D-11-00200.1 |
| Web URL(s):
http://www.bioone.org/doi/full/10.1614/WS-D-11-00200.1
Last checked: 08/13/2012
Access conditions: Item is within a limited-access website
http://www.bioone.org/doi/pdf/10.1614/WS-D-11-00200.1
Last checked: 08/13/2012
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: b2203399a |
| Find from within TIC:
Digitally in TIC by record number. |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
