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Plant Physiology 80:856-858 (1986)
© 1986 American Society of Plant Biologists

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Articles

Effect of Calcium on Tuberization in Potato (Solanum tuberosum L.) 1

V. Balamani, K. Veluthambi and B. W. Poovaiah

Department of Horticulture and Landscape Architecture, Washington State University, Pullman, Washington 99164-6414

Tuberization response of single-node leaf cuttings from induced potato plants (Solanum tuberosum L.) was reversed when pretreated with 5 millimolar ethyleneglycol-bis-(beta-aminoethyl ether)N,N'-tetraacetic acid (EGTA) + 50 micromolar calcium ionophore (A23187) and resumed when transferred to a CaCl2-containing medium. Tuberization was inhibited by LaCl3, chlorpromazine, and trifluoperazine at 5 to 10 micromolar. These results suggest a role for calcium in the tuberization process.

1 Scientific Paper No. 7369, Washington State University, College of Agriculture and Home Economics Research Center, Pullman, Project 0321. Supported by National Science Foundation grant DCB-8502215.




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Copyright © 1986 by the American Society of Plant Biologists