Abstract
The differential cell elongation of cress (Lepidium sativum) roots that results in geotropic bending can be decreased by green radiation with an action spectrum peaking at 550 nm. This decrease can be negated by prior or simultaneous irradiation by orange-red light with an action spectrum peaking at 620 nm. The green radiation appears to be effective during the cell elongation phase of geotropic response.
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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
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