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DOI: | 10.21273/JASHS.128.5.0648 |
Web URL(s): | https://journals.ashs.org/jashs/view/journals/jashs/128/5/article-p648.xml?rskey=jF3mGL Last checked: 11/19/2019 Requires: PDF Reader |
Publication Type:
| Refereed |
Author(s): | Wang, Zhaolong;
Pote, John;
Huang, Bingru |
Author Affiliation: | Wang: College of Agriculture and Biology Science, Shanghai Jiao Da University, Shanghai, China; Pote and Huang: Department of Plant Biology and Plant Pathology, Rutgers University, New Brunswick, New Jersey |
Title: | Responses of cytokinins, antioxidant enzymes, and lipid peroxidation in shoots of creeping bentgrass to high root-zone temperatures |
Source: | Journal of The American Society for Horticultural Science. Vol. 128, No. 5, September 2003, p. 648-655. |
Publishing Information: | Alexandria, VA: American Society for Horticultural Science |
# of Pages: | 8 |
Keywords: | TIC Keywords: Shoots; Injuries; Cytokinins; Antioxidants; Lipids; Agrostis stolonifera; Temperatures; Soil temperature; Heat resistance
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Cultivar Names: | Penn A-4; Putter |
Abstract/Contents: | "This study was designed to examine whether shoot injury induced by high root-zone temperatures is associated with changes in shoot detoxifying metabolism and to determine the level and duration of high-root zone temperatures that would induce physiological changes in two cultivars of creeping bentgrass (Agrostis stolonifera var. palustris Huds) differing in heat tolerance. Plants of 'Penn A-4' (heat tolerant) and 'Putter' (heat susceptible) were grown in sand and exposed to root-zone temperatures of 20 (control), 21, 22, 23, 25, 27, 31, and 35°C in water baths while air temperature was maintained at 20° C in a growth chamber. Turf quality, leaf cytokinin content, and antioxidant enzyme activities declined at increased soil temperatures and the duration of treatment for both cultivars. A decline in turf quality occured following 40 days of exposure to 35° C for 'Penn A-4' and 26 days of exposure to 31° C for 'Putter'. The root-zone temperature causing the decline of isopentenyl adenosine and zeatin cytokinins was 25° C at 27° C at 47 days for 'Penn A-4'. The temperature causing the decline of superoxide dismutase an catalase activities was 25° C and 27° C at 33 days for ' Putter' and 27° C and 31° C at 43 days for Penn A-4, respectively. Malondiadehyde content and antioxidant enzyme activity occured at a lower soil temperature and earlier during the treatment than the decline in turf quality, cytokinin content, an oxidative damamge were higher in the heat-tolerant cultivar than heat-susceptible cultivar. |
Language: | English |
References: | 50 |
See Also: | Other items relating to: Biostimulants |
Note: | Graphs Figures |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Wang, Z., J. Pote, and B. Huang. 2003. Responses of cytokinins, antioxidant enzymes, and lipid peroxidation in shoots of creeping bentgrass to high root-zone temperatures. J. Am. Soc. Hortic. Sci. 128(5):p. 648-655. |
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| DOI: 10.21273/JASHS.128.5.0648 |
| Web URL(s): https://journals.ashs.org/jashs/view/journals/jashs/128/5/article-p648.xml?rskey=jF3mGL Last checked: 11/19/2019 Requires: PDF Reader |
| MSU catalog number: SB 1 .A46 |
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