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Stem Abnormality Induced by DCPA

Published online by Cambridge University Press:  12 June 2017

R. K. Nishimoto  and
G. F. Warren
R. K. Nishimoto
Affiliation:
Dep. of Hort., Purdue Univ
G. F. Warren
Affiliation:
Dep. of Hort., Purdue Univ
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Abstract

Dimethyl tetrachloroterephthalate (DCPA) caused swelling of a localized region of the hypocotyls of cucumber (Cucumis sativus L., var. Wis. SMR-15), tomato (Lycopersicon esculentum Mill., var. Heinz 1370), and jimsonweed (Datura stramonium L.). DCPA caused stem swelling in jimsonweed by affecting dividing and/or differentiating cells in the vascular cambium. As swelling proceeded, xylem tissue was increased over the controls and xylem cells were disorganized and no longer continuous. Swelling was induced at the site of DCPA application, and was reduced when DCPA concentration per unit of stem was lowered, even though the same amount per plant was applied. Uptake of 14C-DCPA from the treated stem region was slow, but the treated area had the highest specific activity.

Type
Research Article
Information
Weed Science , Volume 19 , Issue 4 , July 1971 , pp. 343 - 346
Copyright
Copyright © Weed Science Society of America 

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References

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