Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Mechanism-based Approach to New Antibiotic Producers Screening among Actinomycetes in the Course of Civil Science

Version 1 : Received: 5 August 2022 / Approved: 8 August 2022 / Online: 8 August 2022 (05:27:03 CEST)

A peer-reviewed article of this Preprint also exists.

Volynkina, I.A.; Zakalyukina, Y.V.; Alferova, V.A.; Belik, A.R.; Yagoda, D.K.; Nikandrova, A.A.; Buyuklyan, Y.A.; Udalov, A.V.; Golovin, E.V.; Kryakvin, M.A.; et al. Mechanism-Based Approach to New Antibiotic Producers Screening among Actinomycetes in the Course of the Citizen Science Project. Antibiotics 2022, 11(9), 1198 Volynkina, I.A.; Zakalyukina, Y.V.; Alferova, V.A.; Belik, A.R.; Yagoda, D.K.; Nikandrova, A.A.; Buyuklyan, Y.A.; Udalov, A.V.; Golovin, E.V.; Kryakvin, M.A.; et al. Mechanism-Based Approach to New Antibiotic Producers Screening among Actinomycetes in the Course of the Citizen Science Project. Antibiotics 2022, 11(9), 1198

Journal reference: Antibiotics 2022, 11, 1198
DOI: 10.3390/antibiotics11091198

Abstract

Since streptomycin discovery, actinomycetes were the main source for new antibiotics, but after the Golden age (1950-1960th) the discovery rate significantly decreased. The high probability to rediscover well-known antibiotics led to a reduction in interest in soil bacteria as a source for new antibiotics. At the same time, actinomycetes remain a very promising reservoir for searching for new active molecules. In this work, we present several reporters containing eye-visible fluorescent protein genes, which can be used to increase the efficiency of determining the mechanism of antibiotics at the very initial stage of screening. Presented reporters and the following pipeline were optimized given the involvement of citizen scientists without specialized skills and equipment in order to utilize the reservoir of soil bacteria in the search for new antibiotic producers. The combination of mechanism-based approaches and civil science has proved its effectiveness in practice revealing a significant increase in the screening rate. Two new strains Streptomyces sp. KB-1 and BV113 were found to produce antibiotics pikromycin and chartreusin, respectively, demonstrating the efficiency of the pipeline.

Keywords

civil science; antibiotic producers screening; actinomycetes; reporter systems; chartreusin; pikromycin

Subject

LIFE SCIENCES, Microbiology

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