Synthesis,biological activity and translocation of L-Glu-amicarthiazol conjugate in tobacco plants

doi:10.14088/j.cnki.issn0439-8114.2021.10.013

Abstract

Abstract: L-Glu-amicarthiazol conjugate was synthesized using L-glutamic acid and amicarthiazol as raw materials, and its structure was characterized by¹ H NMR, ¹³C NMR and mass spectrometry. The indoor toxicity of compounds against rice sheath blight were evaluated by the mycelial growth rate method. High performance liquid chromatography （HPLC） was used to detect the translocation of compounds on tobacco plants through leaf coating and hydroponic treatment. The results showed that compared with amicarthiazol, L-Glu-amicarthiazol conjugate retained the inhibitory activity against rice sheath blight to a certain extent, and its EC₅₀ against rice sheath blight was 13.76 μmol/L （The EC₅₀ of amicarthiazol against rice sheath blight was 12.47 μmol/L）. The uptake and translocation of L-Glu-amicarthiazol conjugate in tobacco was significantly increased compared with that of the amicarthiazol.

Key words: amino acid, amicarthiazol, conjugate, biological activity, translocation

CLC Number:

CHANG Yue, LI Jun-kai, CHEN Shun-shun, XU Han-hong. Synthesis,biological activity and translocation of L-Glu-amicarthiazol conjugate in tobacco plants[J]. HUBEI AGRICULTURAL SCIENCES, 2021, 60(10): 67-71.

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