rishitinn.

Brit.

/rɪˈʃiːtɪn/, U.S.

/rɪˈʃidɪn/

Origin: From a proper name, combined with an English element. Etymons: Rishiri , -in suffix¹.

Etymology: < Rishi- (in Rishiri, the name of a variety of potato < Rishiri, Japanese Rishiri, the name of an island in northern Japan) + -in suffix¹, with insertion of -t- apparently for euphony.

Biochemistry.

A phytoalexin with antifungal and bactericidal activity that is formed in potato tubers infected with a pathogenic fungus.Rishitin is a bicyclic terpenoid. Formula: C₁₄H₂₂O₂.

ΘΚΠ

the world > life > biology > substance > process stimulators or inhibitors > antibiotic > [noun]

actinomycin1940

claviformin1942

antibiotic1944

bacteriocin1954

gentamicin1963

rishitin1968

magainin1987

1968 K. Tomiyama et al. in Phytopathology 58 115/2 The yield was 30-40mg/kg of tuber tissue. We propose to designate this compound as rishitin, because it was originally isolated from the potato variety Rishiri.

1976 Nature 1 Jan. 64/1 A large quantity of rishitin has been reported on the tubers of susceptible cultivars treated with the DNA fraction from the resistant hybrid.

2005 H. Schempp et al. in B. Hock & E. E. Elstner Plant Toxicol. (ed. 4) ii. 102 In potatoes NO initiates the formation of the phytoalexin rishitin and thus seems to be involved in plant ‘immunology’.

This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022).

单词	rishitin
释义	rishitinn. Brit. /rɪˈʃiːtɪn/, U.S. /rɪˈʃidɪn/ Origin: From a proper name, combined with an English element. Etymons: Rishiri , -in suffix¹. Etymology: < Rishi- (in Rishiri, the name of a variety of potato < Rishiri, Japanese Rishiri, the name of an island in northern Japan) + -in suffix¹, with insertion of -t- apparently for euphony. Biochemistry. A phytoalexin with antifungal and bactericidal activity that is formed in potato tubers infected with a pathogenic fungus.Rishitin is a bicyclic terpenoid. Formula: C₁₄H₂₂O₂. ΘΚΠ the world > life > biology > substance > process stimulators or inhibitors > antibiotic > [noun] actinomycin1940 claviformin1942 antibiotic1944 bacteriocin1954 gentamicin1963 rishitin1968 magainin1987 1968 K. Tomiyama et al. in Phytopathology 58 115/2 The yield was 30-40mg/kg of tuber tissue. We propose to designate this compound as rishitin, because it was originally isolated from the potato variety Rishiri. 1976 Nature 1 Jan. 64/1 A large quantity of rishitin has been reported on the tubers of susceptible cultivars treated with the DNA fraction from the resistant hybrid. 2005 H. Schempp et al. in B. Hock & E. E. Elstner Plant Toxicol. (ed. 4) ii. 102 In potatoes NO initiates the formation of the phytoalexin rishitin and thus seems to be involved in plant ‘immunology’. This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022). < n.1968
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