Results 41 to 50 of about 168,537 (253)

Integration of the D‐Genome Reshapes Gene Transcription, Chromatin Architecture, and Metabolome of Allohexaploid Wheat, Leading to Enhanced Environmental Adaptability

open access: yesAdvanced Science, EarlyView.
Integration of the D‐genome reshapes gene transcription, chromatin architecture, and the metabolome of hexaploid wheat, leading to enhanced adaptability to salt, UV‐B, and alkali stress. ABSTRACT The hybridization‐led integration of the D‐genome into domesticated tetraploid wheat gave rise to allohexaploid wheat, the most cultivated wheat globally ...
Yanyan Liu   +23 more
wiley   +1 more source

Cinchona-Alkaloid-Derived NNP Ligand for Iridium-Catalyzed Asymmetric Hydrogenation of Ketones

open access: yes
Most ligands applied for asymmetric hydrogenation are synthesized via multistep reactions with expensive chemical reagents. Herein, a series of novel and easily accessed cinchona-alkaloid-based NNP ligands have been developed in two steps.
Chong Zhao (495389)   +8 more
core   +1 more source

Nuciferine Suppresses Inflammatory Hepatocarcinogenesis by Targeting cPLA2‐Dependent Arachidonic Acid Metabolism

open access: yesAdvanced Science, EarlyView.
Nuciferine directly binds the C2 domain of cPLA2, impairing its Ca2+‐dependent membrane translocation and activation. By suppressing arachidonic acid release and downstream pro‐inflammatory eicosanoid production, nuciferine attenuates NF‐κB signaling and inflammatory hepatocarcinogenesis, revealing cPLA2 as a direct molecular target underlying its ...
Jing Sun   +12 more
wiley   +1 more source

Artificial Intelligence‐Driven Network Pharmacology: A Methodological Paradigm Shift Bridging Traditional Wisdom and Modern Science

open access: yesAdvanced Intelligent Discovery, EarlyView.
Artificial intelligence is redefining network pharmacology (NP). By integrating knowledge graph engineering, geometric deep learning, multiomics anchoring, and generative reasoning, AI‐driven NP (AI‐NP) transforms static target mapping into dynamic, predictive modeling.
Cong Wang   +9 more
wiley   +1 more source

Palatability of geophyte underground storage organs partially explains their depth in the Cape Floristic Region, geophyte capital of the world

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise The soil depth of underground storage organs (USOs) of geophytes involves cost–benefit trade‐offs and may relate to USO age, size, and disturbances such as fire and herbivory. Yet determinants of USO depth are poorly studied. We posit that belowground mammalian predation of USOs is a selective force for the positive relationship ...
Tineke Kraaij   +4 more
wiley   +1 more source

Cinchona-Alkaloid-Derived NNP Ligand for Iridium-Catalyzed Asymmetric Hydrogenation of β‑Keto Ester

open access: yes
The Ir-catalyzed asymmetric hydrogenation of β-keto esters with Cinchona-alkaloid-derived NNP ligands has been developed. β-Hydroxy esters of opposite configuration were afforded smoothly with 91.5–99.1 and 81.6–99.3% ee, respectively, using NNP L2 and ...
Jie Tian (20496)   +8 more
core   +1 more source

A novel alkaloid from Gaultheria nummularioides

open access: yes, 2007
A novel alkaloid, gaultherialine A (1), along with twenty-seven known compounds were isolated from the whole plants of Gaultheria nummularioides D. Don. The structure of the new alkaloid was elucidated as 7,8-diMethoxy-1-(4-methoxyphenyl)-4,5-dihydro-2H ...
Yang, MF   +4 more
core  

Dasycarine, a new quinoline alkaloid from Dictamnus dasycarpus [PDF]

open access: yes, 2000
Dasycarine, a new quinoline alkaloid along with five known compounds, dictamine, dihydroobacunone, obacunone, fraxinellone and beta-sitosterol, were isolated from Dictamnus dasycarpus. The structure of dasycarine was identified as 4, 5, 8- trimethoxyl -3-
Chen, J   +4 more
core  

Alcalóides ciclopeptídicos: diversas abordagens no estudo da estereoquímica baseados na franganina [PDF]

open access: yes, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, 2011O alcalóide ciclopeptídico franganina foi isolado da Discaria americana pertencente à família Rhamnaceae ...
Oliveira, Leonardo Henrique de
core  

Aspeverin, a New Alkaloid from an Algicolous Strain of Aspergillus versicolor [PDF]

open access: yes, 2013
A novel carbamate- and cyano-containing alkaloid, aspeverin (1), was isolated from the culture of an algicolous Aspergillus versicolor strain (dl-29).
Nai-Yun Ji   +7 more
core   +1 more source

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