A novel LAMP assay using hot water in vacuum insulated bottle for rapid detection of the soybean red crown rot pathogen Calonectria ilicicola

Abstract Red crown rot is an important disease of soybean crops worldwide. It is caused by the fungal pathogen Calonectria ilicicola. Infection by C. ilicicola results in a significant reduction in soybean yield and quality. Therefore, accurate pathogen detection in the early stages of the disease is paramount to implementing disease management promptly and minimizing losses. In this study, we developed a sensitive and specific loop-mediated isothermal amplification (LAMP) assay (TUB-Ci-LAMP) targeting the β-tubulin gene of C. ilicicola. Furthermore, an in-field TUB-Ci-LAMP assay was developed using Buffer C to perform on-site crude DNA extraction and a vacuum insulated bottle as a temperature-stable, portable container for isothermal amplification under the field environment. This assay only had positive reaction to C. ilicicola, but not to any of 22 other tested fungal or oomycete species. Under both laboratory and field conditions, genomic DNA of C. ilicicola at 0.01 ng per µL or higher was consistently detected using this assay. Additionally, the in-field assay detected C. ilicicola in artificially inoculated and naturally infected soybean plants. These findings indicate that TUB-Ci-LAMP is useful in aiding researchers, diagnosticians, and first responders on rapid and accurate detection of soybean red crown rot under both laboratory and field environments..

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:51

Enthalten in:

Australasian plant pathology - 51(2022), 2 vom: 19. Feb., Seite 251-259

Sprache:

Englisch

Beteiligte Personen:

Lu, ChenChen [VerfasserIn]
Dai, TingTing [VerfasserIn]
Zhang, HaiFeng [VerfasserIn]
Zeng, DanDan [VerfasserIn]
Wang, YuanChao [VerfasserIn]
Yang, WanFeng [VerfasserIn]
Zheng, XiaoBo [VerfasserIn]

Links:

Volltext [lizenzpflichtig]

Themen:

Plant disease diagnosis
Soybean red crown rot

Anmerkungen:

© The Author(s) under exclusive licence to Australasian Plant Pathology Society Inc. 2022

doi:

10.1007/s13313-022-00855-y

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

OLC2129709117