國家衛生研究院 NHRI:Item 3990099045/6342
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/6342


    Title: Simultaneous detection of multiple fish pathogens using a naked-eye readable DNA microarray
    Authors: Chang, CI;Hung, PH;Wu, CC;Cheng, TC;Tsai, JM;Lin, KJ;Lin, CY
    Contributors: Division of Biostatistics and Bioinformatics
    Abstract: We coupled 16S rDNA PCR and DNA hybridization technology to construct a microarray for simultaneous detection and discrimination of eight fish pathogens (Aeromonas hydrophila, Edwardsiella tarda, Flavobacterium columnare, Lactococcus garvieae, Photobacterium damselae, Pseudomonas anguilliseptica, Streptococcus iniae and Vibrio anguillarum) commonly encountered in aquaculture. The array comprised short oligonucleotide probes (30 mer) complementary to the polymorphic regions of 16S rRNA genes for the target pathogens. Targets annealed to the microarray probes were reacted with streptavidin-conjugated alkaline phosphatase and nitro blue tetrazolium/5-bromo-4-chloro-3'-indolylphosphate, p-toluidine salt (NBT/BCIP), resulting in blue spots that are easily visualized by the naked eye. Testing was performed against a total of 168 bacterial strains, i.e., 26 representative collection strains, 81 isolates of target fish pathogens, and 61 ecologically or phylogenetically related strains. The results showed that each probe consistently identified its corresponding target strain with 100% specificity. The detection limit of the microarray was estimated to be in the range of 1 pg for genomic DNA and 10(3) CFU/mL for pure pathogen cultures. These high specificity and sensitivity results demonstrate the feasibility of using DNA microarrays in the diagnostic detection of fish pathogens.
    Date: 2012-03
    Relation: Sensors. 2012 Mar;12(3):2710-2728.
    Link to: http://dx.doi.org/10.3390/s120302710
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1424-8220&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000302125000019
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84858972815
    Appears in Collections:[Chung-Yen Lin(1999-2005)] Periodical Articles

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