Light microscopy of peanut cotyledon tissue showed some unusual profiles that were interpreted to be cell walls. Comparable tissue was treated with enzymes to eliminate cellular contents and examined in a scanning electron microscope. These parenchyma cells had walls which were bizarre, resembling scalariform xylem elements. Crushing tests on tissue whose cellular contents were removed showed that these cells provided insignificant resistance to crushing.
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L. Y. Yatsu (1981) studied this question.
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