Results 71 to 80 of about 172,060 (247)

Use of a new LC-MS method for the determination of pyrrolizidine alkaloids in feeds

Journal of Veterinary Research, 2018
Pyrrolizidine alkaloids (PAs) are secondary metabolites produced by many plant species. Due to their toxicity PAs can pose a risk to human and animal health.
Kowalczyk Ewelina, Kwiatek Krzysztof
doaj   +1 more source

Environmental Influence on the Untargeted Foliar Metabolome of Naturally Growing Mitragyna Species in Thailand

Plant-Environment Interactions, Volume 7, Issue 1, February 2026.
ABSTRACT This study investigates the foliar secondary metabolite profiles of four Mitragyna species naturally occurring in Thailand: M. diversifolia, M. hirsuta, M. rotundifolia, and M. speciosa (kratom). Using untargeted gas chromatography–mass spectrometry (GC–MS), 409 secondary volatile metabolites were annotated across the four species.
Tushar Andriyas, Nisa Leksungnoen, Chatchai Ngernsaengsaruay, Suwimon Uthairatsamee, Rossarin Tansawat, Pakawat Sirilertpanich   +5 more
wiley   +1 more source

Pseudotetraivprolides from Pseudomonas entomophila Provide Insights into the Biosynthesis of Detoxin/Rimosamide‐Like Anti‐Antibiotics

Angewandte Chemie International Edition, Volume 65, Issue 4, 22 January 2026.
Pseudotetraivprolide is a new player among the Detoxin/Rimosamide‐like natural products! Its biosynthesis requires FabD from primary metabolism and a PipDFG complex for final‐step acetylation – unlocking its anti‐antibotic activity. Abstract Novel variants of known natural product (NP) classes can provide valuable insights into their biosynthesis ...
Edna Bode, Julia Büllesbach, Kevin Bauer, Yan‐Ni Shi, Simon Reiners, Ziheng Cui, Petra Happel, Yi‐Ming Shi, Kevin Hoffmann, Peter Grün, Bianca Pommerenke, Uli Kazmaier, Martin Grininger, Helge B. Bode   +13 more
wiley   +1 more source

Application of Plant‐Derived Silver Nanoparticles for Control of Economically Important Bacterial Plant Pathogens

Plant Pathology, Volume 75, Issue 1, January/February 2026.
The obtained through green synthesis nanoparticles—AgNPs can be used for control of the important plant pathogenic bacteria. ABSTRACT Plant‐pathogenic bacteria pose a serious threat to crop production, and although several methods have been established, preventive strategies remain the most widely applied.
Michal Prusinski, Anna Dzimitrowicz, Wojciech Sledz, Agata Motyka‐Pomagruk, Aleksandra Krolicka, Piotr Jamroz, Pawel Pohl, Ewa Lojkowska   +7 more
wiley   +1 more source

Catalytic asymmetric synthesis of highly substituted pyrrolizidines [PDF]

, 2012
A catalytic asymmetric double (1,3)-dipolar cycloaddition reaction has been developed. Using a chiral silver catalyst, enantioenriched pyrrolizidines can be prepared in one flask from inexpensive, commercially available starting materials.
Codelli, Julian A., Lim, Andrew D., Reisman, Sarah E.   +2 more
core  

Exploring the Phytochemical Landscape of the Early-Diverging Flowering Plant Amborella trichopoda Baill. [PDF]

, 2019
Although the evolutionary significance of the early-diverging flowering plant Amborella (Amborella trichopoda Baill.) is widely recognized, its metabolic landscape, particularly specialized metabolites, is currently underexplored.
Chang, Lijing, Tian, Li, Wilson, Alexander E, Wu, Sheng   +3 more
core   +1 more source

Phytochemical Profiling and Computational Docking Studies Revealing the Potential Anticancer and Antioxidant Properties of Heliotropium indicum L.

Scientifica, Volume 2026, Issue 1, 2026.
This study explores the anticancer and antioxidant potential of Heliotropium indicum L. through integrated phytochemical, biological, and computational approaches. GC–MS analysis identified phenol, 3,5‐bis(1,1‐dimethylethyl) as a major constituent. The chloroform fraction (CHF) exhibited significant in vivo antitumor activity in an Ehrlich ascites ...
Sadia Afroz Shoily, Mst. Shahnaj Parvin, Mohsin Kazi, Aqibul Hasan Aqib, Md. Sabbir Hossain, Rasel Ahmed, Rafat Hossain Rafi, Jaytirmoy Barmon, Mohammad N. Uddin, Md. Ekramul Islam, Muhammad Iqhrammullah   +10 more
wiley   +1 more source

Intoxicação natural por Senecio brasiliensis (Asteraceae) em bubalinos no Rio Grande do Sul [PDF]

, 2008
Descreve-se a ocorrência de um surto de intoxicação espontânea por Senecio brasiliensis em búfalos Murrah (Bubalus bubalis) em uma propriedade localizada no município de Nova Prata, Estado do Rio Grande do Sul, no período de junho a agosto de 2006. De um
Bezerra Júnior, Pedro Soares, Corrêa, André Mendes Ribeiro, Driemeier, David, Gomes, Gisele, Pavarini, Saulo Petinatti, Santos, Adriana Silva dos, Sonne, Luciana, Zlotowski, Priscila   +7 more
core  

Two-directional synthesis and biological evaluation of alkaloid 5-epi-cis-275B′ [PDF]

, 2014
The first total synthesis of myrmicine ant alkaloid 5-epi-cis-275B0 (4) is presented. A tandem cyclisation stablished the entire core of the structure in a single transformation as well as the required 2,5-anti stereochemistry.
Aggarwal, Amat, Amat, Amat, Amat, Annabella F. Newton, Barthelme, Bradshaw, Burns, Cahiez, Daly, Daly, Daly, David Richards, Gareth Harbottle, George Procopiou, Gignoux, Girard, Greene, Holub, Ian R. Mellor, Jones, Nicolaou, Nicolaou, O'Connell, Pooja Aggarwal, Ram, Robbins, Robert A. Stockman, Saporito, Spande   +30 more
core   +2 more sources

From MS1 to Structure: A Van Krevelen–DBE–Aromaticity‐Based Framework for Annotating Specialized Metabolites via High‐Resolution Mass Spectrometry

Rapid Communications in Mass Spectrometry, Volume 39, Issue 24, 30 December 2025.
ABSTRACT Rationale Classifying specialized metabolites in untargeted metabolomics remains a major challenge, particularly when relying solely on high‐resolution mass spectrometry (HRMS) data at the MS1 level. Traditional approaches using Van Krevelen diagrams often lack sufficient resolution to distinguish structurally similar metabolite classes ...
Nerilson M. Lima, Luana A. Pereira, Lucas S. Tironi, Matheus P. G. do Carmo, Milbya L. Costa, Renato A. Oliveira, Salva Asghar, Vinicius Fortes da Silva   +7 more
wiley   +1 more source