Hypocotyl Growth and Peroxidases of Bidens pilosus | Zendy

MarieOdile Desbiez | Zendy; Nicole Boyer | Zendy; Thomas Gaspar | Zendy

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Hypocotyl Growth and Peroxidases of Bidens pilosus

Author(s) -

MarieOdile Desbiez,

Nicole Boyer,

Thomas Gaspar

Publication year - 1981

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.68.1.41

Subject(s) - hypocotyl , peroxidase , cotyledon , botany , elongation , isozyme , biology , chemistry , auxin , biochemistry , enzyme , gene , materials science , metallurgy , ultimate tensile strength

Pricking one cotyledon of young Bidens pilosus plants induces rapid inhibition of hypocotyl growth, essentially in its middle portion. Analysis of soluble peroxidases indicates rapid changes (increase of activity) in basic isoenzymes followed by more progressive enhancement of the acidic ones. Pretreatment of the plants with lithium prevents the inhibition of elongation due to pricking as well as the peroxidase changes. The phenomenon is similar to the previously described thigmomorphogenetic process in Bryonia dioica.

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