Mechanism of Cyanide Inhibition of Phloem Translocation | Zendy

Robert T. Giaquinta | Zendy; Donald R. Geiger | Zendy

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Mechanism of Cyanide Inhibition of Phloem Translocation

Author(s) -

Robert T. Giaquinta,

Donald R. Geiger

Publication year - 1977

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.59.2.178

Subject(s) - phloem , chromosomal translocation , phaseolus , sieve tube element , potassium cyanide , photosynthesis , sucrose , apoplast , sieve (category theory) , chemistry , cyanide , biophysics , potassium , botany , mechanism (biology) , biology , biochemistry , cell wall , inorganic chemistry , gene , mathematics , organic chemistry , epistemology , philosophy , combinatorics

Petiolar application of potassium cyanide inhibited (14)C-assimilate translocation without affecting source leaf photosynthesis or phloem loading of sucrose in Phaseolus vulgaris. The inhibition of transport was correlated with disruption of the structural integrity of the sieve tubes (sieve pore blockage) rather than impairment of a metabolic process in the translocation path driving translocation.

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