Mechanical Inhibition of Hypocotyl Elongation Induces Radial Enlargement | Zendy

Terri S. Victor | Zendy; Larry N. Vanderhoef | Zendy

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Mechanical Inhibition of Hypocotyl Elongation Induces Radial Enlargement

Author(s) -

Terri S. Victor,

Larry N. Vanderhoef

Publication year - 1975

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.56.6.845

Subject(s) - elongation , hypocotyl , microbiology and biotechnology , chemistry , biology , botany , materials science , composite material , ultimate tensile strength

Excised elongating segments from 3-day-old soybean (Glycine max var. Wayne) seedlings radially enlarged when auxin-promoted elongation was mechanically inhibited. Growth was similar to segments treated with auxin plus cytokinin. This observation suggests that cytokinin does not necessarily directly "reorient" cell enlargement. Cytokinin-induced radial cell growth may be a secondary effect of cytokinin's inhibition of auxin-promoted elongation.

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