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Rapidly Quantitative Detection of in Honeybees Using Ultra-rapid Real-time Quantitative PCR

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Journal J Vet Sci
Date 2021 May 31
PMID 34056881
Citations 4
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Abstract

Background: The microsporidian parasite is a global problem in honeybee populations and is known to cause winter mortality. A sensitive and rapid tool for stable quantitative detection is necessary to establish further research related to the diagnosis, prevention, and treatment of this pathogen.

Objectives: The present study aimed to develop a quantitative method that incorporates ultra-rapid real-time quantitative polymerase chain reaction (UR-qPCR) for the rapid enumeration of in infected bees.

Methods: A procedure for UR-qPCR detection of was developed, and the advantages of molecular detection were evaluated in comparison with microscopic enumeration.

Results: UR-qPCR was more sensitive than microscopic enumeration for detecting two copies of DNA and 24 spores per bee. Meanwhile, the limit of detection by microscopy was 2.40 × 10⁴ spores/bee, and the stable detection level was ≥ 2.40 × 10⁵ spores/bee. The results of calculations from the infected honeybees and purified spores by UR-qPCR showed that the DNA copy number was approximately 8-fold higher than the spore count. Additionally, honeybees infected with with 2.74 × 10⁴ copies of DNA were incapable of detection by microscopy. The results of quantitative analysis using UR-qPCR were accomplished within 20 min.

Conclusions: UR-qPCR is expected to be the most rapid molecular method for Nosema detection and has been developed for diagnosing nosemosis at low levels of infection.

Citing Articles

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Beneficial Bacteria and Plant Extracts Promote Honey Bee Health and Reduce Nosema ceranae Infection.

Garrido P, Porrini M, Alberoni D, Baffoni L, Scott D, Mifsud D Probiotics Antimicrob Proteins. 2023; 16(1):259-274.

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Insights into the Role of Natural Products in the Control of the Honey Bee Gut Parasite ( spp.).

El-Seedi H, El-Wahed A, Al Naggar Y, Saeed A, Xiao J, Ullah H Animals (Basel). 2022; 12(21).

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Molecular Detection and Differentiation of Arthropod, Fungal, Protozoan, Bacterial and Viral Pathogens of Honeybees.

Lannutti L, Gonzales F, Dus Santos M, Florin-Christensen M, Schnittger L Vet Sci. 2022; 9(5).

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