Two New Polyketides From Streptomyces sp. SA61: Isolation, Structure Elucidation, and Insecticidal Activity Against Bemisia tabaci
Pengfei Cui, Jiajun Chen, Zhaoyu Zhu, Fei Liu, Zhiguo Yu · 2026
Read Two New Polyketides From Streptomyces sp. SA61: Isolation, Structure Elucidation, and Insecticidal Activity Against Bemisia tabaci by Pengfei Cui, Jiajun Chen, Zhaoyu Zhu, Fei Liu, Zhiguo Yu (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13576077.txt.
Description
Pengfei Cui and four co-authors report two new insect killing compounds from a Streptomyces strain in this 2026 paper. The strain, called SA61, came from the gut of an earthworm. The team grew it and pulled six polyketides from its fermentation broth. Two of them, named strekingmycin I and strekingmycin J, were new to science. Structures were pinned down with NMR, mass checks, and X-ray crystal work.
One older compound in the set gave crystal data for the first time, fixing its exact shape. All six compounds were tested on young whiteflies, a major crop pest. The strongest, strekingmycin A, killed at a dose close to a store bought control, though it stayed weaker. The authors present the family as a fresh lead for green pest control. They also note this is the first report of the family acting on this pest.
Catalog record
| CREATOR | Pengfei Cui, Jiajun Chen, Zhaoyu Zhu, Fei Liu, Zhiguo Yu |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 32 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |