Rapidly Quantitative Detection of in Honeybees Using Ultra-rapid Real-time Quantitative PCR
Overview
Affiliations
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.
Truong A, Yoo M, Seo S, Hwang T, Yoon S, Cho Y Heliyon. 2023; 9(2):e13494.
PMID: 36816323 PMC: 9929316. DOI: 10.1016/j.heliyon.2023.e13494.
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.
PMID: 36637793 PMC: 10850026. DOI: 10.1007/s12602-022-10025-7.
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).
PMID: 36359186 PMC: 9656094. DOI: 10.3390/ani12213062.
Lannutti L, Gonzales F, Dus Santos M, Florin-Christensen M, Schnittger L Vet Sci. 2022; 9(5).
PMID: 35622749 PMC: 9145064. DOI: 10.3390/vetsci9050221.