Full TGIF Record # 225855
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DOI:10.2135/cropsci2013.01.0045
Web URL(s):https://dl.sciencesocieties.org/publications/cs/articles/53/4/1626
    Last checked: 11/07/2016
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https://dl.sciencesocieties.org/publications/cs/pdfs/53/4/1626
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Publication Type:
i
Refereed
Author(s):Xu, Yan; Du, Hongmei; Huang, Bingru
Author Affiliation:Xu: School of Theoretical and Applied Science, Ramapo College of New Jersey, Mahwah; Huang: Dep. of Plant Biology and Pathology, Rutgers Univ., New Brunswick, NJ; Du: School of Agriculture and Biology, Shanghai Jiao Tong Univ., Shanghai, China
Title:Identification of metabolites associated with superior heat tolerance in thermal bentgrass through metabolic profiling
Section:Crop physiology & metabolism
Other records with the "Crop physiology & metabolism" Section
Source:Crop Science. Vol. 53, No. 4, July/August 2013, p. 1626-1635.
Publishing Information:Madison, Wisconsin: Crop Science Society of America
# of Pages:10
Related Web URL:https://dl.sciencesocieties.org/publications/cs/abstracts/53/4/1626
    Last checked: 11/07/2016
    Notes: Abstract only
https://dl.sciencesocieties.org/publications/cs/articles/53/4/1626?show-t-f=tables&wrapper=no
    Last checked: 11/07/2016
    Notes: Tables only
https://dl.sciencesocieties.org/publications/cs/articles/53/4/1626?show-t-f=figures&wrapper=no
    Last checked: 11/07/2016
    Notes: Figures only
Keywords:TIC Keywords: Agrostis stolonifera; Agrostis scabra; Amino acids; Energy metabolism; Growth studies; Heat stress; Metabolites; Organic acids; Osmoregulation
Abstract/Contents:"Heat stress affects various metabolic processes and limits the growth of cool-season plants. The objectives of this study were to compare metabolite profiles of two Agrostis species exhibiting differential heat tolerance and identify key metabolites associated with heat tolerance in cool-season grass species. Heat-tolerant thermal bentgrass (Agrostis scabra Willd.) and heat-sensitive creeping bentgrass (Agrostis stolonifera L.) were exposed to 40/38°C (day/night) (heat stress) or 20/18°C (day/night) (control) for 10 d in growth chambers. Polar metabolites (remaining in the methanolwater phase and separated from those in the chloroform phase during extraction) from leaves and roots were quantified separately using gas chromatographymass spectrometry. The major heat-responsive metabolites in the two Agrostis grass species included organic acids (lactic acid, threonic acid, and aminomalonic acid) and sugars (glucose, fructose, sucrose, and maltose) in leaves and amino acids (valine, alanine, proline, aspartic acid, γ-aminobutyric acid, and asparagines), organic acids (threonic acid, gluconic acid, and citric acid), and sugars (fructose, floridoside, and turanose) in roots. Compared to heat-sensitive A. stolonifera, heat-tolerant A. scabra maintained higher accumulation or lesser degradation of soluble monosaccharides (fructose and glucose) necessary for energy production, branched-chain amino acids (valine and isoleucine) used in secondary signaling, and 5-oxoproline and putrescine for antioxidant defense as well as sucrose, proline, and myo-inositol involved in osmotic regulation. The results suggest that maintaining active cellular metabolisms for energy production, stress signaling, antioxidant protection, and osmoregulation could contribute to superior heat tolerance in cool-season grass species."
Language:English
References:49
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Xu, Y., H. Du, and B. Huang. 2013. Identification of metabolites associated with superior heat tolerance in thermal bentgrass through metabolic profiling. Crop Sci. 53(4):p. 1626-1635.
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DOI: 10.2135/cropsci2013.01.0045
Web URL(s):
https://dl.sciencesocieties.org/publications/cs/articles/53/4/1626
    Last checked: 11/07/2016
    Access conditions: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/cs/pdfs/53/4/1626
    Last checked: 11/07/2016
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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