

FOLLOWUS
School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China
yunji16@163.com
zhoushun@qau.edu.cn
Received:27 June 2024,
Accepted:02 September 2024,
Online First:16 October 2024,
Published:01 September 2025
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SONG Jiaxue,FENG Ruixin,PANG Yunfei,et al.Construction and application of the RPA-LFD rapid detection method for ,Glugea plecoglossi[J].Journal of Oceanology and Limnology,2025,43(05):1647-1653.
SONG Jiaxue,FENG Ruixin,PANG Yunfei,et al.Construction and application of the RPA-LFD rapid detection method for ,Glugea plecoglossi[J].Journal of Oceanology and Limnology,2025,43(05):1647-1653. DOI: 10.1007/s00343-024-4173-y.
Glugea plecoglossi
a microsporidia of the
Glugea
genus
can cause an infamous disease
Plecoglossus
altivelis
in East Asia
resulting in heavy economic losses. At present
the main diagnostic methods for this disease include microscopy examination
quantitative real-time PCR
and loop-mediated isothermal amplification-lateral flow dipstick (LAMP-LFD). In this study
a recombinase polymerase amplification-lateral flow dipstick (RPA-LFD) method
targeting the
beta
-
tubulin
gene
was developed to detect
G
.
plecoglossi
three sets of primers and probes were designed and screened
after which the initial reaction system was established. The RPA-LFD method for
G
.
plecoglossi
could complete nucleic acid amplification at 39 °C for 10 min
after which the amplification product was dropped on the LFD strip
and the results could then be observed within 5 min. A specificity assay revealed that there was no cross-reactivity with other protozoa except
G
.
plecoglossi
. A sensitivity assay revealed that the detection limit was 9.38×10
6
ng/μL
which was more sensitive than that of conventional PCR. Compared with conventional detection methods
the novel RPA-LFD method has the advantages of simple operation
short operation time
high sensitivity
and high specificity for
G
.
plecoglossi
detection
indicating its potential use in rapid field detection of
G
.
plecoglossi
.
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