This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Pitman, M. G. Articles by Carter, C. Search for Related Content PubMed PubMed Citation Articles by Pitman, M. G. Articles by Carter, C. Agricola Articles by Pitman, M. G. Articles by Carter, C.

Articles

Reduction of Hydraulic Conductivity during Inhibition of Exudation from Excised Maize and Barley Roots ^1,2

School of Biological Sciences, University of Sydney, N.S.W. 2006, Australia

The uncoupler, carbonyl cyanide m-chlorophenyl hydrazone (CCCP) is shown to reduce the hydraulic conductivity of barley, maize, mung bean, and onion roots. In barley and maize, the reduction in exudation from excised roots is partly due to the reduction in the permeability of the root to water (I_p), but it can be inferred that the rate of salt release to the xylem, is also inhibited. The action of CCCP on L_p is suggested to be mainly in blocking the symplasmic pathway at the plasmodesmata.

² This paper is dedicated to the memory of Noe Higinbotham in appreciation of his contribution to studies of ion transport and his personal assistance and stimulation to his colleagues in Australia.

This article has been cited by other articles:

				M. Kamaluddin and J. J. Zwiazek Metabolic inhibition of root water flow in red-osier dogwood (Cornus stolonifera) seedlings J. Exp. Bot., April 15, 2001; 52(357): 739 - 745. [Abstract] [Full Text] [PDF]