| |
| DOI: | 10.21273/HORTSCI.45.10.1559 |
|---|
| Publication Type:
| Refereed |
|---|
| Author(s): | Kopsell, Dean A.;
Brosnan, James T.;
Armel, Gregory R.;
McElroy, J. Scott |
|---|
| Author Affiliation: | Kopsell, Brosnan and Armel: Plant Sciences Department, The University of Tennessee, Knoxville, TN; McElroy: Department of Agronomy and Soils, Auburn University, Auburn, AL |
|---|
| Title: | Increases in bermudagrass [Cynodon dactylon (L.) Pers.] tissue pigments during post-application recovery from mesotrione |
|---|
| Section: | Miscellaneous
Other records with the "Miscellaneous" Section
|
|---|
| Source: | HortScience. Vol. 45, No. 10, October 2010, p. 1559-1562. |
|---|
| Publishing Information: | Alexandria, VA: American Society for Horticultural Science |
|---|
| # of Pages: | 4 |
|---|
| Keywords: | TIC Keywords: Carotenoids; Color evaluation; Cynodon dactylon; Enzyme inhibitors; Herbicide evaluation; Mesotrione; Necrosis; Pigmentation; Herbicide application; Tissue testing; Turf recovery; Visual evaluation
|
|---|
| Abstract/Contents: | "Mesotrione {2-[4-(methylsulfonyl)-2-nitrobensoyl]-1,3-cyclohexanedione} is a herbicide that indirectly inhibits phytoene desaturase in plant tissues, the first step in the carotenoid biosynthesis pathway. The predominant symptom of mesotrione activity is tissue whitening with subsequent plant necrosis. In the current study, 'Riviera' bermudagrass [Cynodon dactylon (L.) Pers.] was treated with mesotrione at 0.28 kg?ha-1 or untreated and sampled for tissue pigment concentrations at 0, 3, 7, 14, 21, 28, and 35 days after treatment (DAT). Visual tissue whitening in mesotrione-treated plants reached a maximum of 38% by 14 DAT; however, regreening of discolored tissue was observed by 21 DAT. Phytoene was only detected in mesotrione-treated plants at 3, 7, and 14 DAT. Pigments in treated plants decreased with initial tissue whitening; however, most recovered to untreated levels by 21 DAT. At 35 DAT, chlorophyll a, chlorophyll b, lutein, ^D^B-carotene, and zeaxanthin in mesotrione-treated plants had accumulated to levels exceeding untreated control plants. Results demonstrate that although mesotrione initially decreases bermudagrass pigment concentrations, treatment with this herbicide eventually results in higher concentrations of chlorophylls and carotenoids." |
|---|
| Language: | English |
|---|
| References: | 21 |
|---|
| Note: | Graphs |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kopsell, D. A., J. T. Brosnan, G. R. Armel, and J. S. McElroy. 2010. Increases in bermudagrass [Cynodon dactylon (L.) Pers.] tissue pigments during post-application recovery from mesotrione. HortScience. 45(10):p. 1559-1562. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=170365 |
| If there are problems with this record, send us feedback about record 170365. |
| Choices for finding the above item: |
|---|
| DOI: 10.21273/HORTSCI.45.10.1559 |
| 
MSU catalog number: b2217685a |
| 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) |
