PHYSIOLOGICAL STUDIES OF A CHIMAERA FORMED BY GRAFTING NIGHTSHADE UPON TOMATO I. RESPIRATORY ACTIVITY OF LEAVES

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1. Leaves of a chimaera which are composed of the tissues from Lycopersicum esculentum var. kinnari (L. e.) covered by two layers of cells from Solanum villosum (S. v.) were compared with those of control plants, L. e. and S. v. with respect to the respiratory activity. 2. As for the respiratory activity of leaf strips, the chimaera was more active than either L. e. or S. v. 3. To respiratory inhibitors examined leaf strips of the chimaera responded rather similarly to those of S. v. but differently from those of L. e. 4. Of various substrates tested, glycolic, ascorbic and chlorogenic acids were actively oxidized by cell-free extracts of leaves from every plant. The first two were especially good substrates for S. v.; L. e. attacked most the third, and the chimaera oxidized just as well the first two as S. v. did and the third as L. e. did. 5. Ascorbic acid and chlorogenic acid contents of the leaf extracts were not correlated with the activities of the extracts of oxidizing these substances. 6. Physiological interactions were suggested between the two tissues of different origins in the chimaera.
日本植物生理学会の論文