Results 121 to 130 of about 128,269 (307)

Artificial Intelligence‐Driven Natural Product Drug Discovery: From Computational Genome Mining to Clinical Translation

open access: yesMedicinal Research Reviews, EarlyView.
ABSTRACT Natural products (NPs) have historically yielded numerous therapeutic agents, yet their integration into modern drug discovery has been constrained by chemical complexity, low abundance, laborious dereplication, and limited target annotation.
Antonio Lavecchia
wiley   +1 more source

NMR‐Based Structural Elucidation of a New Dihydroisocoumarin and Related Polyketides From a Mangrove‐Derived Fusarium sp.

open access: yesMagnetic Resonance in Chemistry, EarlyView.
Integration of bioactivity screening and LC–MS/MS metabolomics enabled the discovery of a new antibacterial dihydroisocoumarin from Fusarium sp. IQ‐1921. NMR‐based structural elucidation identified five related metabolites, with the new compound 1 showing the broadest activity against multidrug‐resistant bacteria. ABSTRACT Antimicrobial resistance (AMR)
Evelyn García‐Oceguera   +4 more
wiley   +1 more source

Chemical diversity and phylogenetic insights into Hawaiian ʻākia (Wikstroemia) species used in traditional fishing practices

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Traditional fishing with plant‐based piscicides is a global practice in decline, facing increasing restrictions. We investigated the chemical diversity of endemic Wikstroemia species historically used to stun or poison fish in Hawaiʻi. Using 1‐H‐NMR, principal component analysis, targeted HPLC, and target‐capture sequencing, we characterized compounds ...
Louise Winther   +10 more
wiley   +1 more source

Proposal for Development of Time-Dilution Dredged Material Bioassay using Zooplankton [PDF]

open access: yes, 1976
This proposal is in reply to REFP No. DACW 39-76-R0025, for a simple, adaptable bioassay technique which can be used to evaluate the potential for toxicity that a proposed dredging activity may produce.
Bedinger, C.A., Jr.
core   +1 more source

Best practices in bioassay development to support registration of biopharmaceuticals

open access: yes, 2019
Biological activity is a critical quality attribute for biopharmaceuticals, which is accurately measured using an appropriate relative potency bioassay.
Matthias Naumer   +14 more
core   +1 more source

Soil‐dependent variation in strigolactone signaling distance revealed by a parasitic seed germination bioassay

open access: yesPest Management Science, EarlyView.
A parasitic seed germination bioassay reveals strong soil‐dependent variation in strigolactone signaling distance, controlled by physical and biological soil properties, which shapes signaling range and parasitic weed infection risk. Abstract BACKGROUND Strigolactones are root‐exuded plant metabolites acting as germination stimulants for several ...
Hammam Ziadne   +2 more
wiley   +1 more source

Evolutionary trade‐offs between beauvericin production and growth define divergent virulence strategies in Beauveria

open access: yesPest Management Science, EarlyView.
Two virulence strategies in Beauveria: a growth strategy characterized by rapid within‐host proliferation, and a toxin strategy involving antimicrobial activity and toxicity to insects Abstract BACKGROUND Pathogen virulence is often attributed to toxin production, yet toxins are metabolically costly and may not universally enhance fitness.
Shasha Hu   +3 more
wiley   +1 more source

Transcriptomic resources and functional validation of RNAi in the cabbage seedpod weevil, Ceutorhynchus obstrictus

open access: yesPest Management Science, EarlyView.
Transcriptome sequencing of Ceutorhynchus obstrictus revealed RNA interference (RNAi) targets; double‐stranded RNA microinjection reduced transcript levels and increased mortality, with αCOP and Rop showing strongest lethal effects, indicating promising RNAi‐based pest control candidates.
Apurva Vikas Sabnis   +8 more
wiley   +1 more source

Endophytic fungi from two isolated Bethencourtia palmensis populations: metabolomic and bioactivity fingerprinting

open access: yesPest Management Science, EarlyView.
We compared two island populations of Bethencourtia palmensis and their culturable endophytic fungi, revealing distinct plant chemistries and a higher biopesticidal potential in the endophytic fungi from La Palma population along with high potential for the discovery of novel compounds.
Jorge Rojas López‐Menchero   +4 more
wiley   +1 more source

Lyophilisation of Thylakoids for Improved Handling in a Bioassay.

open access: yes, 1996
The thylakoid bioassay is used to determine the effect of herbicides in water. To avoid isolation for each bioassay, lyophylisation of thylakoids for continuous, reproducible supply as bioassay material, is described.
KRAMER Gerard Nico   +2 more
core   +1 more source

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