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HYPOCOTYL SWELLING IN MARROW SEEDLINGS IN RESPONSE TO 2,4‐D TREATMENT
Author(s) -
YOUSIF O. A. F.,
FIELDER N. A.,
PINFIELD N. J.
Publication year - 1979
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1979.tb07557.x
Subject(s) - hypocotyl , swelling , cell division , incubation , botany , biology , cell , chemistry , biophysics , microbiology and biotechnology , biochemistry , pathology , medicine
S ummary Swelling of the hypocotyl base was induced in marrow seedlings by incubation in 2,4‐D concentrations in the range 0·001 to 1·0 p.p.m. This swelling resulted partly from cell enlargement and partly from increased cell division. The radial enlargement of cells was not achieved at the expense of longitudinal cell extension, unlike many instances where swelling has been induced by ethylene. Increased cell division was most pronounced in the interfascicular region of the hypocotyl, indicating increased cambial activity in this area.