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This article in CS

  1. Vol. 10 No. 2, p. 175-178
    Received: Sept 21, 1969

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Effect of Root Aeration on Amino Acid Levels in Cotton Plants1

  1. Gene Guinn and
  2. L. A. Brinkerhoff2



Oxygen deficiency in the rooting medium altered amino acid levels in roots, xylem sap, and leaves of cotton plants (Gossypium hirsutum L.). In general, poor root aeration increased amino acid levels in roots and sap, but decreased amino acid levels in leaves. Poor root aeration greatly increased alanine and also increased serine, gamma-aminobutyric acid, glutamic acid, and glutamine contents of roots and xylem sap. On the other hand, poor root aeration had almost no effect on asparagine content of roots and decreased asparagine contents of xylem sap and leaves.

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