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Induction of primary root curvature in radish seedlings in a static magnetic field
Author(s) -
Yano Akira,
Hidaka Eiko,
Fujiwara Kazuhiro,
Iimoto Mitsuo
Publication year - 2001
Publication title -
bioelectromagnetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.435
H-Index - 81
eISSN - 1521-186X
pISSN - 0197-8462
DOI - 10.1002/bem.38
Subject(s) - clinostat , raphanus , magnetic field , bioelectromagnetics , magnet , shim (computing) , nuclear magnetic resonance , electromagnetic coil , field (mathematics) , physics , botany , biology , mathematics , medicine , quantum mechanics , pure mathematics , erectile dysfunction
Abstract Primary roots of radish ( Raphanus sativus L.) seedlings were exposed to an inhomogeneous static magnetic field generated by a permanent magnet, during continuous rotation on a 0.06 rpm clinostat, thereby reducing the unilateral influence of gravity. The roots responded tropically to the static magnetic field with the tropism appearing to be negative. These roots responded significantly ( P < 0.05) to the south pole of the magnet. The significant tropic response was found for a magnetic flux density of 13–68 mT, for a field gradient of 1.8–14.7 T/m, and for the product of magnetic field and field gradient of 0.023–1.0 T 2 /m. A small, but insignificant, response of the roots to the north pole has also been found. Bioelectromagnetics 22:194–199, 2001. © 2001 Wiley‐Liss, Inc.