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| DOI: | 10.2135/cropsci2011.01.0024 |
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| Web URL(s): | https://acsess.onlinelibrary.wiley.com/doi/10.2135/cropsci2011.01.0024
Last checked: 03/29/2024
Access conditions: Item is within a limited-access website
https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2135/cropsci2011.01.0024
Last checked: 03/29/2024
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Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Wang, Kehua;
Okumoto, Sakiko;
Zhang, Xunzhong;
Ervin, Erik |
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| Author Affiliation: | Wang, Zhang and Ervin: Dep. of Crop and Soil Environmental Sciences, Virginia Polytechnic Institute and State Univ., Blacksburg, VA; Okumoto: Dep. of Plant Pathology, Physiology and Weed Science, Virginia Polytechnic Institute and State Univ. Blacksburg, VA; Wang: Division of Plant Sciences, Univ. of Missouri, Columbia, MO |
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| Title: | Circadian patterns of the major nitrogen metabolism-related enzymes and metabolites in creeping bentgrass and the influence of cytokinin and nitrate |
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| Section: | Crop physiology & metabolism
Other records with the "Crop physiology & metabolism" Section
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| Source: | Crop Science. Vol. 51, No. 5, September 2011, p. 2145-2154. |
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| Publishing Information: | Madison, WI: Crop Science Society of America |
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| # of Pages: | 10 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Cytokinins; Diurnal cycle; Diurnal variation; Nitrates; Nitrogen metabolism; Nutrient balance; Photoperiod; Time-of-day
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| Cultivar Names: | A-4 |
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| Abstract/Contents: | "Creeping bentgrass (Agrostis stolonifera L.) is a major low-cut turfgrass species worldwide. Information is limited on the diurnal variation in its N metabolism, particularly the impacts of cytokinin (CK) and nitrate (NO3-). To gain insight into the diurnal fluctuation of N metabolism and the effects of CK and nitrate, the transcript abundance of the major N metabolism enzymes in shoots, including nitrate reductase (NR), nitrite reductase, chloroplastic glutamine synthetase (GS2), ferredoxin-dependent glutamate synthase (Fd-GOGAT), and glutamate dehydrogenase, were studied during the day/night cycle (14/10 h). All measured parameters exhibited clear diurnal changes with some differences among treatments (control, CK at 50 μM, and nitrate at 7.5 kg N ha-1), except GS2 expression and total protein. Both NR expression and nitrate content showed a peak at 0430 h (8.5 h in dark). Nitrate nutrition increased diurnal change of nitrate content, showing an over two-fold diurnal difference compared to 63 and 81% differences for the control and CK treatment, respectively. Simultaneously, CK shifted the diurnal in vivo NR activity pattern. In addition, creeping bentgrass appears to be able to maintain N assimilation at night comparable to that during the day, demonstrated by either similar or even higher levels of measured parameters between certain phases of light and dark periods. This study provides further information for understanding how CK and nitrate regulate N metabolism in creeping bentgrass." |
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| Language: | English |
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| References: | 58 |
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| Note: | Figures
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wang, K., S. Okumoto, X. Zhang, and E. Ervin. 2011. Circadian patterns of the major nitrogen metabolism-related enzymes and metabolites in creeping bentgrass and the influence of cytokinin and nitrate. Crop Sci. 51(5):p. 2145-2154. |
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| DOI: 10.2135/cropsci2011.01.0024 |
| Web URL(s):
https://acsess.onlinelibrary.wiley.com/doi/10.2135/cropsci2011.01.0024
Last checked: 03/29/2024
Access conditions: Item is within a limited-access website
https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2135/cropsci2011.01.0024
Last checked: 03/29/2024
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2211522a |
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