Physiological Roles of Rutin in the Buckwheat Plant

Japan Agricultural Research Quarterly
ISSN 00213551
NII recode ID (NCID) AA0068709X
Full text

The buckwheat plant contains high levels of rutin (flavonol 3-O-rutinoside) in many organs, including its seeds, cotyledon, leaves, stem, and flowers. The enzymes that catalyze the decomposition and synthesis of rutin in buckwheat are unique in terms of having relatively low Km values, indicating that buckwheat developed rutinosidase and glycosyl transferase enzymes specifically suited for rutin metabolism. In Tartary buckwheat seeds, high levels of rutin content and rutinosidase activity cause strong bitterness, which may effectively protect the seeds from being eaten by animals. The stress responses observed in buckwheat leaves suggests that rutin and rutinosidase are involved in enhancing the defense system against environmental stresses, including UV light, low temperature, and desiccation.

Date of issued
Creator SUZUKI Tatsuro MORISHITA Toshikazu KIM Sun-Ju PARK Sang-Un WOO Sun-hee NODA Takahiro TAKIGAWA Shigenobu
Subject

rutinosidase

stress

Tartary buckwheat

quercetin

Publisher Japan International Research Center for Agricultural Sciences
Available Online
NII resource type vocabulary Journal Article
Volume 49
Issue 1
spage 37
epage 43
DOI 10.6090/jarq.49.37
Rights Japan International Research Center for Agricultural Sciences
Language eng

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