Solution-Flow in the Phloem | Zendy

D.A. Cataldo | Zendy; A. Lawrence Christy | Zendy; C.L. Coulson | Zendy; Jack Ferrier | Zendy

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Solution-Flow in the Phloem

Author(s) -

D.A. Cataldo,

A. Lawrence Christy,

C.L. Coulson,

Jack Ferrier

Publication year - 1972

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.49.5.685

Subject(s) - sieve tube element , phloem , tracer , aqueous solution , sucrose , flow (mathematics) , chemistry , work (physics) , sieve (category theory) , path (computing) , mechanics , thermodynamics , physics , mathematics , botany , nuclear physics , biology , biochemistry , combinatorics , computer science , programming language

A mathematical model for the reversible exchange of THO between the sieve tube lumen and its surrounding phloem tissue is used to explain the difference between the apparent velocities of THO and (14)C-sucrose transport observed when both are supplied simultaneously. Theoretically predicted results show a close correlation with those obtained experimentally. This model may be used in evaluating previous work in which THO was used as a tracer. The calculations support the existence of a mass flow of sugars in aqueous solution along the path.

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