| |
| DOI: | 10.21273/JASHS.137.1.38 |
|---|
| Web URL(s): | https://journals.ashs.org/jashs/view/journals/jashs/137/1/article-p38.xml
Last checked: 04/30/2020
https://journals.ashs.org/jashs/downloadpdf/journals/jashs/137/1/article-p38.xml
Last checked: 04/30/2020
Requires: PDF Reader |
|---|
| Publication Type:
| Refereed |
|---|
| Author(s): | Hu, Longxing;
Hu, Tao;
Zhang, Xunzhong;
Pang, Huancheng;
Fu, Jinmin |
|---|
| Author Affiliation: | Longxing Hu, Tao Hu and Fu: Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, The Chinese Academy of Science, Wuhan City, Hubei, P.R. China; Zhang: Virginia Polytechnic Institute and State University, Blacksburg, VA; Pang: Institute of Agricultural Resources and Regional Planning, The Chinese Academy of Agricultural Sciences, Beijing, P.R. China |
|---|
| Title: | Exogenous glycine betaine ameliorates the adverse effect of salt stress on perennial ryegrass |
|---|
| Section: | Environmental stress physiology
Other records with the "Environmental stress physiology" Section
|
|---|
| Source: | Journal of The American Society for Horticultural Science. Vol. 137, No. 1, January 2012, p. 38-46. |
|---|
| Publishing Information: | Alexandria, Va.: American Society for Horticultural Science |
|---|
| # of Pages: | 9 |
|---|
| Keywords: | TIC Keywords: Antioxidant metabolism; Ascorbate peroxidase; Chlorophyll content; Electrolyte leakage; Glycine betaine; Lipid peroxidation; Lolium perenne; Relative water content; Root weight; Salinity stress; Shoot growth; Superoxide dismutase
|
|---|
| Abstract/Contents: | "Salinity stress may involve the accumulation of glycine betaine (GB). The objective of this study was to examine whether exogenous GB would ameliorate the detrimental effect of salinity stress on perennial ryegrass (Lolium perenne). The grass was subjected to two salinity levels (0 and 250 mM NaCl) and three GB levels (0, 20, and 50 mM). Salinity resulted in a remarkable decrease in vertical shoot growth rate (VSGR), shoot and root fresh weight, relative water content (RWC), relative transpiration rate (Tr), and chlorophyll (Chl) content, superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APX) activities. Plants subjected to salt exhibited an increase in leaf electrolyte leakage (EL), lipid peroxidation (MDA), and proline content. Application of GB reduced EL, MDA, and proline content in salt-stressed plants. Perennial ryegrass subjected to salt stress plus GB had a greater level of VSGR, RWC, relative Tr, Chl content, and activities of SOD, CAT, and APX when compared with salt-stressed without GB. Salt stress increased Na+ and decreased K+ content, which resulted in a higher Na+/K+ ratio in perennial ryegrass. Application of 20 mm GB suppressed Na+ accumulation, whereas the K+ content was significantly increased in shoot, which led to a higher K+/Na+ ratio under saline conditions. These results suggested that GB-enhanced salt tolerance in perennial ryegrass was mainly related to the elevated SOD, CAT, and APX activity and alleviation of cell membrane damage by reducing oxidation of membrane lipid and improving the ion homeostasis under salt stress." |
|---|
| Language: | English |
|---|
| References: | 62 |
|---|
| See Also: | Other items relating to: Salinity Management For Cool Season Grasses |
|---|
| Note: | Tables
Graphs |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hu, L., T. Hu, X. Zhang, H. Pang, and J. Fu. 2012. Exogenous glycine betaine ameliorates the adverse effect of salt stress on perennial ryegrass. J. Am. Soc. Hortic. Sci. 137(1):p. 38-46. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=197827 |
| If there are problems with this record, send us feedback about record 197827. |
| Choices for finding the above item: |
|---|
| DOI: 10.21273/JASHS.137.1.38 |
| Web URL(s):
https://journals.ashs.org/jashs/view/journals/jashs/137/1/article-p38.xml
Last checked: 04/30/2020
https://journals.ashs.org/jashs/downloadpdf/journals/jashs/137/1/article-p38.xml
Last checked: 04/30/2020
Requires: PDF Reader |
| 
MSU catalog number: b2221587a |
| 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) |
