Suitcase Lab: new, portable, and deployable equipment for rapid detection of specific harmful algae in Chilean coastal waters

So Fujiyoshi, Kyoko Yarimizu, Youhei Miyashita, Joaquín Rilling, Jacquelinne J. Acuña, Shoko Ueki, Gonzalo Gajardo, Oscar Espinoza-González, Leonardo Guzmán, Milko A. Jorquera, Satoshi Nagai, Fumito Maruyama

    Research output: Contribution to journalArticlepeer-review

    1 Citation (Scopus)

    Abstract

    Phytoplankton blooms, including harmful algal blooms (HABs), have serious impacts on ecosystems, public health, and productivity activities. Rapid detection and monitoring of marine microalgae are important in predicting and managing HABs. We developed a toolkit, the Suitcase Lab, to detect harmful algae species in the field. We demonstrated the Suitcase Lab’s capabilities for sampling, filtration, DNA extraction, and loop-mediated isothermal amplification (LAMP) detection in cultured Alexandrium catenella cells as well as Chilean coastal waters from four sites: Repollal, Isla García, Puerto Montt, and Metri. A LAMP assay using the Suitcase Lab in the field confirmed microscopic observations of A. catenella in samples from Repollal and Isla García. The Suitcase Lab allowed the rapid detection of A. catenella, within 2 h from the time of sampling, even at a single cell per milliliter concentrations, demonstrating its usefulness for quick and qualitative on-site diagnosis of target toxic algae species. This method is applicable not only to detecting harmful algae but also to other field studies that seek a rapid molecular diagnostic test.

    Original languageEnglish
    Pages (from-to)14144-14155
    Number of pages12
    JournalEnvironmental Science and Pollution Research
    Volume28
    Issue number11
    DOIs
    Publication statusPublished - Mar 2021

    Keywords

    • Deployable toolkit
    • Harmful algal bloom
    • Loop-mediated isothermal amplification
    • On-site molecular detection
    • Plankton monitoring

    ASJC Scopus subject areas

    • Environmental Chemistry
    • Pollution
    • Health, Toxicology and Mutagenesis

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