Genetic characterization of Lophopyrum elongatum salt tolerance and associated ion regulation as expressed in bread wheat. Final technical report

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Lophopyrum elongatum is a highly salt-tolerant relative of wheat. Its salt tolerance is partially expressed in the amphiploid from a cross between wheat cv. Chinese Spring and L. elongatum. Genetic studies showed that the tolerance of gradually imposed salt stress is controlled by L. elongatum chromosomes 3E, 4E, 5E, and 7E and the tolerance of suddenly imposed salt stress by chromosomes 3E, 5E, 6E, and 7E. In wheat, rye, barley, and Dasypyrum, chromosomes of the same homoeologous groups, 3, 5, 6, and 7, were found to control the tolerance of these stress regimes. To gain insight into the physiological mechanisms ... continued below

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2 p.

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Creator: Unknown. October 7, 1997.

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Description

Lophopyrum elongatum is a highly salt-tolerant relative of wheat. Its salt tolerance is partially expressed in the amphiploid from a cross between wheat cv. Chinese Spring and L. elongatum. Genetic studies showed that the tolerance of gradually imposed salt stress is controlled by L. elongatum chromosomes 3E, 4E, 5E, and 7E and the tolerance of suddenly imposed salt stress by chromosomes 3E, 5E, 6E, and 7E. In wheat, rye, barley, and Dasypyrum, chromosomes of the same homoeologous groups, 3, 5, 6, and 7, were found to control the tolerance of these stress regimes. To gain insight into the physiological mechanisms of salt tolerance by wheat and L. elongatum, accumulation of Na and K, 20 protein amino acids, glycinebetaine, aminobutyrate, all TCA cycle intermediates, oxalate, glycerol-3-P, glyceraldehyde-3-P, pyruvate, lactate, ornithine, taurine, glucose, sucrose and other sugars was examined in the amphiploid and Chinese Spring by gas chromatography and H-NMR.

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2 p.

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OSTI as DE98007338

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  • Other Information: PBD: 7 Oct 1997

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  • Other: DE98007338
  • Report No.: DOE/ER/14037--T3
  • Grant Number: FG03-89ER14037
  • DOI: 10.2172/638182 | External Link
  • Office of Scientific & Technical Information Report Number: 638182
  • Archival Resource Key: ark:/67531/metadc691433

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  • October 7, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • Jan. 10, 2018, 3:45 p.m.

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Genetic characterization of Lophopyrum elongatum salt tolerance and associated ion regulation as expressed in bread wheat. Final technical report, report, October 7, 1997; Davis, California. (digital.library.unt.edu/ark:/67531/metadc691433/: accessed July 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.