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Osamu Tanaka, Kazuhiro Asagami, Ferricyanide Induces Flowering by Suppression of Nitrate Assimilation in Lemna paucicostata 6746, Plant and Cell Physiology, Volume 27, Issue 6, September 1986, Pages 1063–1068, https://doi.org/10.1093/oxfordjournals.pcp.a077189
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Abstract
Lemna paucicostata 6746, a short-day plant, produced flower buds even under continuous light when cultured for 3 days in ferricyanide containing ammonium-free medium followed by culture on nitrogen-rich medium (either nitrate or ammonium). Daily treatment with ferricyanide in the absence of ammonium for more than 8 hours, which completely inhibited nitrate reductase activity within 6 hours after the addition to the medium, induced daylength-independent flowering even when the ammonium-rich medium was given during the remaining hours. The presence of ammonium for 1 hour at the middle of the 14-h ferricyanide treatment almost completely suppressed floral induction.