| |
DOI: | 10.21273/HORTSCI.50.7.1075 |
Publication Type:
| Refereed |
Author(s): | Xu, Lixin;
Zhang, Mili;
Zhang, Xunzhong;
Han, Lie-Bao |
Author Affiliation: | Xu, Zhang, M., and Han: Turfgrass Research Institute, Beijing Forestry University, Beijing, China; Zhang, X.: Department of Crop and Soil Environmental Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA |
Title: | Cold acclimation treatment-induced changes in abscisic acid, cytokinin, and antioxidant metabolism in zoysiagrass (Zoysia japonica) |
Section: | Turf management Other records with the "Turf management" Section
|
Source: | HortScience. Vol. 50, No. 7, July 2015, p. 1075-1080. |
Publishing Information: | Alexandria, Virginia: American Society for Horticultural Science |
# of Pages: | 6 |
Keywords: | TIC Keywords: Abscisic acid; Antioxidant metabolism; Cold acclimation; Cold resistance; Cytokinins; Freezing; Zoysia; Zoysia japonica
|
Cultivar Names: | Chinese Common |
Abstract/Contents: | "Zoysiagrass (Zoysia spp.), a warm-season turfgrass species, experiences freezing damage in many regions. The mechanisms of its cold acclimation and freezing tolerance have not been well understood. This study was designed to investigate effects of cold acclimation treatment on leaf abscisic acid (ABA), cytokinin (transzeatin riboside (t-ZR), and antioxidant metabolism associated with freezing tolerance in zoysiagrass (Zoysia japonica). 'Chinese Common' zoysiagrass was subjected to either cold acclimation treatment with temperature at 8/2 °C (day/night) and a photosynthetically active radiation (PAR) of 250 Υ mol•m-2•s-1 over a 10-hour photoperiod or normal environments (temperature at 28/24 °C (day/night), PAR at 400 μmol•m-2•s-1 and 14-hour photoperiod) for 21 days in growth chambers. Cold treatment caused cell membrane injury as indicated by increased leaf cell membrane electrolyte leakage (EL) and malondialdehyde (MDA) content after 7 days of cold treatment. Cold treatment increased leaf ABA and hydrogen peroxide content and reduced t-ZR content. Leaf superoxide dismutase (SOD), ascorbate peroxidase (APX) activity, and proline content increased, whereas catalase (CAT) and peroxidase (POD) activity declined in response to cold treatment. Cold treatment increased freezing tolerance as LT50 declined from -4.8 to -12.5 °C. The results of this study indicated that cold acclimation treatment might result in increases in ABA and H2O2, which induce antioxidant metabolism responses and improved freezing tolerance in zoysiagrass." |
Language: | English |
References: | 39 |
Note: | Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Xu, L., M. Zhang, X. Zhang, and L.-b. Han. 2015. Cold acclimation treatment-induced changes in abscisic acid, cytokinin, and antioxidant metabolism in zoysiagrass (Zoysia japonica). HortScience. 50(7):p. 1075-1080. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=265144 |
| If there are problems with this record, send us feedback about record 265144. |
| Choices for finding the above item: |
| DOI: 10.21273/HORTSCI.50.7.1075 |
| 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) |