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. 1989 Nov;91(3):1063–1068. doi: 10.1104/pp.91.3.1063

Metabolic Acclimation to Hypoxia in Winter Cereals 1

Low Temperature Flooding Increases Adenylates and Survival in Ice Encasement

Christopher J Andrews 1, M Keith Pomeroy 1
PMCID: PMC1062119  PMID: 16667112

Abstract

Cold hardened seedlings of winter wheat (Triticum aestivum L. em Thell) show an hypoxic hardening response: an exposure to low temperature flooding increases the tolerance of plants to a subsequent ice encasement exposure. Seedlings of winter barley (Hordeum vulgare L.) do not show such a response in similar experimental conditions. During ice encasement, there are general declines in adenylate energy charge (AEC), total adenylates and ATP:ADP ratios in the crown tissues of two winter wheat cultivars, and a winter barley, but rates of decline are faster in the barley. When the ice period is preceded by low temperature flooding of the whole plant, levels of the adenylate components are raised significantly in the wheats, and to a lesser extent in the barley. The survival of plants in ice preceded by flooding is related to the increased initial level of adenylates at the onset of the ice encasement stress, and the maintenance of higher levels of adenylates and ATP in the early stages of ice encasement as a result of accelerated rates of glycolysis. Higher survival of both winter wheat and barley plants during ice encasement in the light is also associated with significantly higher levels of AEC and adenylates in the early stages of ice encasement.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Andrews C. J., Pomeroy M. K. Toxicity of Anaerobic Metabolites Accumulating in Winter Wheat Seedlings during Ice Encasement. Plant Physiol. 1979 Jul;64(1):120–125. doi: 10.1104/pp.64.1.120. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Gronewald J. W., Hanson J. B. Adenine nucleotide content of corn roots as affected by injury and subsequent washing. Plant Physiol. 1982 Jun;69(6):1252–1256. doi: 10.1104/pp.69.6.1252. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Hetherington P. R., Broughton H. L., McKersie B. D. Ice-Encasement Injury to Microsomal Membranes Isolated from Winter Wheat Crowns : II. Changes in Membrane Lipids during Ice Encasement. Plant Physiol. 1988 Mar;86(3):740–743. doi: 10.1104/pp.86.3.740. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Hetherington P. R., McKersie B. D., Borochov A. Ice Encasement Injury to Microsomal Membranes from Winter Wheat Crowns : I. Comparison of Membrane Properties after Lethal Ice Encasement and during a Post-Thaw Period. Plant Physiol. 1987 Dec;85(4):1068–1072. doi: 10.1104/pp.85.4.1068. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Jian L. C., Sun L. H., Dong H. Z. Adaptive Changes in ATPase Activity in the Cells of Winter Wheat Seedlings during Cold Hardening. Plant Physiol. 1982 Jul;70(1):127–131. doi: 10.1104/pp.70.1.127. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Peterson G. L. A simplification of the protein assay method of Lowry et al. which is more generally applicable. Anal Biochem. 1977 Dec;83(2):346–356. doi: 10.1016/0003-2697(77)90043-4. [DOI] [PubMed] [Google Scholar]
  7. Pomeroy M. K., Andrews C. J. Changes in adenine nucleotides and energy charge in isolated winter wheat cells during low temperature stress. Plant Physiol. 1986 Jun;81(2):361–366. doi: 10.1104/pp.81.2.361. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Pomeroy M. K., Andrews C. J. Metabolic and ultrastructural changes associated with flooding at low temperature in winter wheat and barley. Plant Physiol. 1979 Oct;64(4):635–639. doi: 10.1104/pp.64.4.635. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Saglio P. H., Drew M. C., Pradet A. Metabolic Acclimation to Anoxia Induced by Low (2-4 kPa Partial Pressure) Oxygen Pretreatment (Hypoxia) in Root Tips of Zea mays. Plant Physiol. 1988 Jan;86(1):61–66. doi: 10.1104/pp.86.1.61. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Zocchi G., Hanson J. B. Calcium influx into corn roots as a result of cold shock. Plant Physiol. 1982 Jul;70(1):318–319. doi: 10.1104/pp.70.1.318. [DOI] [PMC free article] [PubMed] [Google Scholar]

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