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The work was supported by the following: Instituto Nacional de Tecnologia Agraria y Alimentaria, Project RTA-2011-00140-C03-01 (http://www.inia.es), PLS MTG EMN MML; Instituto Nacional de Tecnologia Agraria y Alimentaria, FPI-INIA grant (http://www.inia.es), PLS; Generalitat Valenciana (Prometeo II 2014/040) (http://www.gva.es), PN RP AM; Ministerio de Economia y Competitividad (MINECO) (CTQ2013-45875R) (http://www.mineco.gob.es), PN RP AM; European Social Fund, PLS MTG EMN MML; and European Regional Development Fund, PLS MTG EMN MML.

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Noguera, PAuthorPuchades, RAuthorMaquieira, AAuthor

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Article

Lateral flow immunoassay for on-site detection of Xanthomonas arboricola pv. pruni in symptomatic field samples

Publicated to:Plos One. 12 (4): e0176201- - 2017-04-27 12(4), DOI: 10.1371/journal.pone.0176201

Authors: Lopez-Soriano, Pablo; Noguera, Patricia; Teresa Gorris, Maria; Puchades, Rosa; Maquieira, Angel; Marco-Noales, Ester; Lopez, Maria M

Affiliations

Inst Valenciano Invest Agrarias, Ctr Protecc Vegetal - Author
Univ Politecn Valencia, Dept Quim, Inst Univ Reconocimiento Mol & Desarrollo Tecnol - Author

Abstract

Xanthomonas arboricola pv. pruni is a quarantine pathogen and the causal agent of the bacterial spot disease of stone fruits and almond, a major threat to Prunus species. Rapid and specific detection methods are essential to improve disease management, and therefore a prototype of a lateral flow immunoassay (LFIA) was designed for the detection of X. arboricola pv. pruni in symptomatic field samples. It was developed by producing polyclonal antibodies which were then combined with carbon nanoparticles and assembled on nitrocellulose strips. The specificity of the LFIA was tested against 87 X. arboricola pv. pruni strains from different countries worldwide, 47 strains of other Xanthomonas species and 14 strains representing other bacterial genera. All X. arboricola pv. pruni strains were detected and cross-reactions were observed only with four strains of X. arboricola pv. corylina, a hazelnut pathogen that does not share habitat with X. arboricola pv. pruni. The sensitivity of the LFIA was assessed with suspensions from pure cultures of three X. arboricola pv. pruni strains and with spiked leaf extracts prepared from four hosts inoculated with this pathogen (almond, apricot, Japanese plum and peach). The limit of detection observed with both pure cultures and spiked samples was 10(4) CFU ml(-1). To demonstrate the accuracy of the test, 205 samples naturally infected with X. arboricola pv. pruni and 113 samples collected from healthy plants of several different Prunus species were analyzed with the LFIA. Results were compared with those obtained by plate isolation and real time PCR and a high correlation was found among techniques. Therefore, we propose this LFIA as a screening tool that allows a rapid and reliable diagnosis of X. arboricola pv. pruni in symptomatic plants.

Keywords

ArticleBacterial growthBacterium identificationCarbon nanoparticleControlled studyCross reactionDeviceDiagnostic accuracyIdentificationImmunoassayIsolation and purificationLateral flow immunoassayLimit of detectionMeasurement accuracyMicrobiologyNonhumanOryctolagus cuniculusPcr protocolPhysiologyPlant diseasePlant diseasesPredictive valueProceduresPrunusPyroxylinReal time polymerase chain reactionSensitivity and specificityTime factorTime factorsXanthomonasXanthomonas pruni

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Plos One due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2017, it was in position 15/64, thus managing to position itself as a Q1 (Primer Cuartil), in the category Multidisciplinary Sciences.

From a relative perspective, and based on the normalized impact indicator calculated from World Citations provided by WoS (ESI, Clarivate), it yields a value for the citation normalization relative to the expected citation rate of: 1.06. This indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: ESI Nov 14, 2024)

This information is reinforced by other indicators of the same type, which, although dynamic over time and dependent on the set of average global citations at the time of their calculation, consistently position the work at some point among the top 50% most cited in its field:

  • Weighted Average of Normalized Impact by the Scopus agency: 1.88 (source consulted: FECYT Feb 2024)
  • Field Citation Ratio (FCR) from Dimensions: 4.63 (source consulted: Dimensions Jun 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-06-29, the following number of citations:

  • WoS: 28
  • Scopus: 35
  • Europe PMC: 13

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-06-29:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 60.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 60 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 1.
  • The number of mentions on the social network X (formerly Twitter): 1 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: http://hdl.handle.net/10251/148892