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THE POLARITY OF AUXIN TRANSPORT IN INVERTED CUTTINGS
Author(s) -
SHELDRAKE A. R.
Publication year - 1974
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.1469-8137.1974.tb01289.x
Subject(s) - auxin , cutting , polarity (international relations) , botany , plant stem , shoot , biology , chemistry , biochemistry , cell , gene
S ummary The original, basipetal polarity of auxin transport persisted in the stems of inverted cuttings of Tagetes , tomato and tobacco in spite of the reversal of the relative positions of the roots and shoots. No significant acropetal auxin transport could be detected even after four months growth. These results indicate that the polarity of newly formed cells in secondarily thickening internodes is determined by the existing polarity of auxin transport within the tissues.