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| Web URL(s): | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC550225/?page=4
Last checked: 04/30/2014
Access conditions: Item is within a limited-access website
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC550225/pdf/plntphys00409-0005.pdf#page=4
Last checked: 04/30/2014
Requires: PDF Reader
Notes: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Barnett, Neal M.;
Naylor, Aubrey W. |
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| Author Affiliation: | Department of Botany, Duke University, Durham, North Carolina |
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| Title: | Amino acid and protein synthesis in bermuda grass during water stress |
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| Meeting Info.: | University of Illinois, Urbana, Illinois: August 16, 1965 |
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| Source: | Plant Physiology. Vol. 40, No. Supplement, 1965, p. vi. |
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| Publishing Information: | Rockville, MD: American Society of Plant Physiologists |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Alanine; Amino acids; Asparagine; Comparisons; Cultivar evaluation; Cynodon dactylon; Glutamic acid; Nitrogen metabolism; Proline; Protein utilization; Proteins; Valine; Water stress
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| Abstract/Contents: | "The nitrogen metabolism of two varieties of Bermuda grass under water stress were compared. Leaves of Coastal Bermuda grass are slightly more drought tolerant than are leaves of the common variety. Water stress induces the accumulation of free proline and amides in leaves, roots, and rhizomes of both varieties. Accumulation of amides is more pronounced in common leaves than in Coastal. Whole-plant labeling experiments with 14CO2 have shown that the carbon chains of free amino acids accumulating during stress are synthesized de novo and do not come from hydrolysis of protein. The specific activities of free amino acids is higher in moderately stressed plants than in controls in both varieties when sampled 1 hour after a pulse label of 14CO2. This specific activity stays high in stressed plants but decreases in controls. Water-soluble protein specific activity reaches a plateau 1 day after labeling in both stressed and control plants: the plateau is lower for stressed plants than controls. Thus stressed plants synthesize amino acids readily but these are not incorporated into protein at rates equal to controls. The amino acid composition of water-soluble protein does not change during stress. Specific activities of amino acids in protein hydrolysates differed considerably. Aspartic acid, alanine, phenylalanine, tyrosine, and methionine had specific activities higher than other protein amino acids in all treatments and varieties. This may reflect differences in size of metabolic pools of each amino acid." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Barnett, N. M., and A. W. Naylor. 1965. Amino acid and protein synthesis in bermuda grass during water stress. Plant Physiol. 40(Supplement):p. vi. |
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| Web URL(s):
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC550225/?page=4
Last checked: 04/30/2014
Access conditions: Item is within a limited-access website
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC550225/pdf/plntphys00409-0005.pdf#page=4
Last checked: 04/30/2014
Requires: PDF Reader
Notes: Item is within a limited-access website |
| 
MSU catalog number: b2215281a |
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