ArticleMolecules (Basel, Switzerland)2014
Antimicrobial activity of UV-induced phenylamides from rice leaves.
Article in Molecules (Basel, Switzerland), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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Who cites it
29 citing papers in PubMed.
- The Fungal Pathogen Fusarium graminearum Can Hydrolyse Tryptamine-Derived Hydroxy-Cinnamic Acid Amide Defence Compounds, and Generates Highly Increased Auxin Levels in Wheat via Copper Amine-Oxidases.Molecular plant pathology · 2026Article
- Sakuranetin, a Natural Flavonoid, Promising to Manage Grapevine Diseases.Molecules (Basel, Switzerland) · 2026Article
- Hydroxycinnamic acid amides in rice: biosynthesis, distribution, function, and implication for crop development.Frontiers in plant science · 2025Review
- The MRE11-ATM-SOG1 DNA damage signaling pathway confers rice immunity to Xanthomonas oryzae.Plant communications · 2024Article
- Biofortified Rice Provides Rich Sakuranetin in Endosperm.Rice (New York, N.Y.) · 2024Article
- Chemical Structure Diversity and Extensive Biological Functions of Specialized Metabolites in Rice.International journal of molecular sciences · 2023Review
- Small Brown Planthopper Nymph Infestation Regulates Plant Defenses by Affecting Secondary Metabolite Biosynthesis in Rice.International journal of molecular sciences · 2023Article
- Rice Phytoalexins: Half a Century of Amazing Discoveries; Part I: Distribution, Biosynthesis, Chemical Synthesis, and Biological Activities.Plants (Basel, Switzerland) · 2023Review
- Measurements of Antibacterial Activity of Seed Crude Extracts in Cultivated Rice and Wild Oryza Species.Rice (New York, N.Y.) · 2022Article
- Antiallergic Effects of N,N-dicoumaroylspermidine Isolated fromInternational journal of molecular sciences · 2022Article
- Biosynthesis and antifungal activity of fungus-induced O-methylated flavonoids in maize.Plant physiology · 2022Article
- Comparative transcriptome profiling reveals the basis of differential sheath blight disease response in tolerant and susceptible rice genotypes.Protoplasma · 2022Article
- Defense mechanisms involving secondary metabolism in the grass family.Journal of pesticide science · 2021Article
- Genome Analysis Traces Regional Dispersal of Rice in Taiwan and Southeast Asia.Molecular biology and evolution · 2021Article
- Biochemical and Molecular Characterization of the Rice Chalcone Isomerase Family.Plants (Basel, Switzerland) · 2021Article
- Comparative proteomic analysis reveals novel insights into the interaction between rice and Xanthomonas oryzae pv. oryzae.BMC plant biology · 2020Article
- Biochemical Characterization of a FlavonoidMolecules (Basel, Switzerland) · 2020Article
- Two Chalcone Synthase Isozymes Participate Redundantly in UV-Induced Sakuranetin Synthesis in Rice.International journal of molecular sciences · 2020Article
- Understanding sheath blight resistance in rice: the road behind and the road ahead.Plant biotechnology journal · 2020Review
- Rice phenolamindes reduce the survival of female adults of the white-backed planthopper Sogatella furcifera.Scientific reports · 2020Article
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Authors and funding
6 authors.
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Abstract
Rice produces a wide array of phytoalexins in response to pathogen attacks and UV-irradiation. Except for the flavonoid sakuranetin, most phytoalexins identified in rice are diterpenoid compounds. Analysis of phenolic-enriched fractions from UV-treated rice leaves showed that several phenolic compounds in addition to sakuranetin accumulated remarkably in rice leaves. We isolated two compounds from UV-treated rice leaves using silica gel column chromatography and preparative HPLC. The isolated phenolic compounds were identified as phenylamide compounds: N-trans-cinnamoyltryptamine and N-p-coumaroylserotonin. Expression analysis of biosynthetic genes demonstrated that genes for arylamine biosynthesis were upregulated by UV irradiation. This result suggested that phenylamide biosynthetic pathways are activated in rice leaves by UV treatment. To unravel the role of UV-induced phenylamides as phytoalexins, we examined their antimicrobial activity against rice fungal and bacterial pathogens. N-trans-Cinnamoyltryptamine inhibited the growth of rice brown spot fungus (Bipolaris oryzae). In addition to the known antifungal activity to the blast fungus, sakuranetin had antimicrobial activity toward B. oryzae and Rhizoctonia solani (rice sheath blight fungus). UV-induced phenylamides and sakuranetin also had antimicrobial activity against rice bacterial pathogens for grain rot (Burkholderia glumae), blight (Xanthomonas oryzae pv. oryzae) and leaf streak (X. oryzae pv. oryzicola) diseases. These findings suggested that the UV-induced phenylamides in rice are phytoalexins against a diverse array of pathogens.
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