The relationship between PthA expression and the pathogenicity of Xanthomonas axonopodis pv. citri

Li, Na; Huang, Long Shuang; Liu, Liping; Li, Dazhi; Dai, Shuguang; Deng, Zhili

doi:10.1007/s11033-013-2941-4

Cited by 3 publications

(1 citation statement)

References 35 publications

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“…citri ( Xac ), the bacterium responsible for the citrus canker disease, often observed in oranges. 35 Xac causes extensive damage to orange production and hence the agricultural economy especially in Brazil, where the citriculture is extremely significant. 36 Thus, this study aims to show sustainable alternatives of new antimicrobial products based on nanomaterials by utilizing orange waste to produce AgNPs that are active toward a phytopathogen that affects orange plantations.…”

Section: Introductionmentioning

confidence: 99%

Bio-based synthesis of silver nanoparticles from orange waste: effects of distinct biomolecule coatings on size, morphology, and antimicrobial activity

Barros¹,

Cruz²,

Mayrink³

et al. 2018

NSA

100

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PurposeDespite the numerous reports on biological syntheses of silver nanoparticles (AgNPs), little is known about the composition of their capping agents, protein corona of plant extract-mediated synthesis, and their influence on the properties of AgNPs. Here, orange (Citrus sinensis) waste was utilized as a source of an extract for AgNP synthesis (the protein corona composition of which was elucidated), and also as a starting material for hesperidin and nanocellulose extraction, which were used for bio-based AgNP synthesis. A comparison of the results using the two methods of synthesis is presented.MethodsAgNPs were synthesized using orange (C. sinensis) peel extract (Or-AgNPs) in a biological route, and using hesperidin (Hsd-AgNPs) and nanocellulose (extracted from oranges) in a green chemical route. Characterization of nanoparticles was carried out using zeta potential and hydrodynamic size measurements, transmission electron microscopy, and X-ray diffraction. Elucidation of proteins from protein corona was performed via ultra performance liquid chromatography-tandem mass spectrometer experiments. Antimicrobial activity was assessed via minimum inhibitory concentration assays against Xanthomonas axonopodis pv. citri (Xac), the bacterium that causes citric canker in oranges.ResultsOr-AgNPs were not completely uniform in morphology, having a size of 48.1±20.5 nm and a zeta potential of −19.0±0.4 mV. Stabilization was performed mainly by three proteins, which were identified by tandem mass spectrometry (MS/MS) experiments. Hsd-AgNPs were smaller (25.4±12.5 nm) and had uniform morphology. Nanocellulose provided a strong steric and electrostatic (−28.2±1.0 mV) stabilization to the nanoparticles. Both AgNPs presented roughly the same activity against Xac, with the minimum inhibitory concentration range between 22 and 24 μg mL−1.ConclusionDespite the fact that different capping biomolecules on AgNPs had an influence on morphology, size, and stability of AgNPs, the antibacterial activity against Xac was not sensitive to this parameter. Moreover, three proteins from the protein corona of Or-AgNPs were identified.

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Section: Introductionmentioning

confidence: 99%

Bio-based synthesis of silver nanoparticles from orange waste: effects of distinct biomolecule coatings on size, morphology, and antimicrobial activity

Barros¹,

Cruz²,

Mayrink³

et al. 2018

NSA

100

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Genetic Basis of Resistance to Citrus Canker Disease

Deng

2020

Compendium of Plant Genomes

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Synthesis of novel (E)-2-(4-(1H-1,2,4-triazol-1-yl)styryl)-4- (alkyl/arylmethyleneoxy)quinazoline derivatives as antimicrobial agents

Yang

Huang

et al. 2017

Mol Divers

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A series of novel (E)-2-(4-(1H-1,2,4-triazol-1-yl)styryl)-4-(alkyl/arylmethyleneoxy)quinazoline derivatives (4a-4s) were synthesized in good to excellent yields, and their structures were fully characterized by [Formula: see text] NMR, [Formula: see text] NMR, HRMS and IR spectra. The structure of compound 4b was further confirmed via single-crystal X-ray diffraction analysis. The bioassay results indicated that compounds 4s, 4q and 4n inhibit phytopathogenic bacterium Xanthomonas axonopodis pv. citri (Xac) more potently than commercial bactericide bismerthiazol. However, not a single compound can effectively inhibit three pathogenic fungi tested at 50 [Formula: see text].

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The relationship between PthA expression and the pathogenicity of Xanthomonas axonopodis pv. citri

Cited by 3 publications

References 35 publications

Bio-based synthesis of silver nanoparticles from orange waste: effects of distinct biomolecule coatings on size, morphology, and antimicrobial activity

Bio-based synthesis of silver nanoparticles from orange waste: effects of distinct biomolecule coatings on size, morphology, and antimicrobial activity

Genetic Basis of Resistance to Citrus Canker Disease

Synthesis of novel (E)-2-(4-(1H-1,2,4-triazol-1-yl)styryl)-4- (alkyl/arylmethyleneoxy)quinazoline derivatives as antimicrobial agents

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