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Infrared Light‐Emitting Diode Radiation Causes Gravitropic and Morphological Effects in Dark‐Grown Oat Seedlings
Author(s) -
Johnson Corinne F.,
Brown Christopher S.,
Wheeler Raymond M.,
Sager John C.,
Chapman David K.,
Deitzer Gerald F.
Publication year - 1996
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1996.tb03020.x
Subject(s) - avena , infrared , light emitting diode , radiation , irradiation , wavelength , optoelectronics , blue light , visible spectrum , diode , darkness , materials science , chemistry , optics , botany , biology , physics , nuclear physics
— Oat ( Avena sativa cv Seger) seedlings were irradiated with IR light‐emitting diode (LED) radiation passed through a visible‐light‐blocking filter. Infrared LED irradiated seedlings exhibited differences in growth and gravitropic response when compared to seedlings grown in darkness at the same temperature. Thus, the oat seedlings in this study were able to detect IR LED radiation. These findings call into question the use of IR LED as a safe‐light for some photosensitive plant response experiments. These findings also expand the defined range of wavelengths involved in radiation‐gravity (light‐gravity) interactions to include wavelengths in the IR region of the spectrum.