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Web URL(s): | http://www.cabi.org/cabdirect/FullTextPDF/2008/20083097700.pdf Last checked: 01/29/2013 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Lee, Geungjoo;
Carrow, Robert N.;
Duncan, Ronny R. |
Author Affiliation: | Lee: Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeong-Eup, Korea; Carrow: Department of Crop and Soil Sciences, University of Georgia, Griffin, GA; Duncan: Turf Ecosystem, LLC., Boerne, TX |
Title: | Identification of new soluble sugars accumulated in a halophytic seashore paspalum ecotype under salinity stress |
Source: | Horticulture, Environment and Biotechnology. Vol. 49, No. 1, 2008, p. 13-19. |
Publishing Information: | Suwon, Korea: Korean Society for Horticultural Science |
# of Pages: | 7 |
Related Web URL: | https://www.cabdirect.org/cabdirect/abstract/20083097700 Last checked: 10/24/2016 Notes: Abstract |
Keywords: | TIC Keywords: Carbohydrate concentration; Galactose; Glucose; Halophytes; Osmolytes; Paspalum vaginatum; Salt tolerance
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Cultivar Names: | Swartz |
Abstract/Contents: | "Seashore paspalum (Paspalum vaginatum Swartz) is a warm season turfgrass recognized as the most salt tolerant among the turfgrass species. This experiment was designed to analyze carbohydrate components in a salt tolerant ecotype HI 101 of seashore paspalum turfgrass, which was grown in a nutrient solution at ECw50 (50 dSā¢m-1) salinized with a sea-salt mixture (i.e., sea water=54 dSā¢m-1). Freeze-dried and ground aerial parts were extracted in 80% or 100% methanol, which were further hydrolyzed for a composition analysis by using a GC or GC-MS method. A GC method for detecting carbohydrate types showed that HI101 contained small amounts of arabinose (3.6 mole%), xylose (2.6%), mannose (1.2%), and glucuronic acid (5.1%), while the major components were galactose and glucose at 18 and 70%, respectively. Another alditol acetate method (GC-MS), for detection of neutral sugars, also indicated different kinds of carbohydrate with a higher amount of galactose (17 mole%) and glucose (62%), as well as minor carbohydrates such as xylose (7.8%), arabinose (4.7%), rhamnose (4.4%), and mannose (3.9%). In the previous analysis, some sucrose, fructose, myo-inositol, and glucose had already been accounted for; thus, the major peak might be a hexose galactose which was positively accumulated in the HI 101 with increasing salinity and incorporated into a cell-wall polysaccharide, revealing it as a compatible solute and osmoprotectant. The calculated solute potential by galactose and glucose was -2.5 and -12.4 bar, respectively, which accounted for 10 and 48% of a solute potential decrease at the 50 dSā¢m-1 salinity level." |
Language: | English |
References: | 26 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Lee, G., R. N. Carrow, and R. R. Duncan. 2008. Identification of new soluble sugars accumulated in a halophytic seashore paspalum ecotype under salinity stress. J. Korean Soc. Hortic. Sci. 49(1):p. 13-19. |
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| MSU catalog number: b9569839 |
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