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This article in CS

  1. Vol. 22 No. 6, p. 1251-1252
    Received: Feb 22, 1982

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Differential Starch Accumulation in the Leaf Mesophyll Layers of Soybean1

  1. J. S. Vendeland,
  2. D. K. Bruck and
  3. T. R. Sinclair2



This study was undertaken to examine a common assumption that starch is uniformly distributed in soybean [Glycine max( L.) Merr.] leaves. Observations from leaf samples collected during 4 years, including at least 12 cultivars and a shading experiment, showed this assumption to be false. In fact, a consistent hierarchy was found in the distribution of starch. Starch was first deposited in the abaxial palisade layer, followed by the spongy mesophyll, and then each of the remaining palisade layers in sequence. Unloading occurred in the reverse order in a shading experiment. Seldom was starch observed in the paraveinal mesophyll layer.

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