Results 31 to 40 of about 867 (172)

Transcriptional Regulation of the Novel Theacrine Synthase Gene CsTcS2 by the CsTINY–CsWRKY33 Module Underpins Theacrine Biosynthesis in Camellia sinensis

Plant Biotechnology Journal, Volume 24, Issue 8, Page 4823-4843, August 2026.
ABSTRACT Theacrine (1,3,7,9‐tetramethyluric acid) is a purine alkaloid detected in multiple wild and specialised tea germplasms (Camellia sinensis) from South China, including Kucha. However, the molecular mechanisms governing its biosynthesis remain poorly understood. Here, we identify CsTcS2 as a novel theacrine synthase in tea plant.
Ting Wu, Lihua Zhu, Chenyu Shao, Siyi Xie, Na Li, Xinyu Li, Fang Wang, Lvwen Peng, Huiying Jin, Fanghuizi Shang, Jianan Huang, Zhonghua Liu, Na Tian, Shuoqian Liu   +13 more
wiley   +1 more source

Discovery of new muscarinic acetylcholine receptor antagonists from Scopolia tangutica [PDF]

, 2017
Scopolia tangutica (S. tangutica) is a traditional Chinese medicinal plant used for antispasmodics, anesthesia, analgesia and sedation. Its pharmacological activities are mostly associated with the antagonistic activity at muscarinic acetylcholine ...
Zhao, Jianqiang, Zhou, Han, Mei, Lijuan, Wang, Jixia, Liang, Xinmiao, He, Jian, Zhang, Xiuli, Liu, Yanfang, Du, Nana   +8 more
core   +3 more sources

Reaction Enumeration Based on NBO‐Informed Molecular Graphs

Journal of Computational Chemistry, Volume 47, Issue 19, 15 July 2026.
NBO‐informed molecular graphs represent chemistry via valence orbitals rather than atomic connectivity, enabling consistent reaction analysis across environments. By identifying delocalized motifs and increasing complexity adaptively, the framework enables efficient exploration of inaccessible mechanisms and diverse catalytic and reaction networks for ...
Javier E. Alfonso‐Ramos, Thijs Stuyver
wiley   +1 more source

Synthesis of N-(Hetero)arylconvolvine Derivatives through a Palladium-Catalyzed Buchwald–Hartwig Cross-Coupling [PDF]

, 2019
International audienceThe present study describes the isolation of convolvine from the roots of the Tunisian plant Convolvulus dorycnium L. and it's synthesis through a four-steps sequence starting from tropine.
Ghermani, Noureddine, Hassine, Manel, Alami, Mouad, Jannet, Hichem Ben, Messaoudi, Samir   +4 more
core   +1 more source

Multi‐Induction Strategies in Crops: Mechanisms, Synergistic Effects, and Sustainable Applications for Enhanced Secondary Metabolite Production

Food Frontiers, Volume 7, Issue 4, July 2026.
This review analyzes single/combined abiotic (light, water, nutrients, hormones) and biotic (microbes, yeast) elicitors regulating signaling, gene expression, and metabolism to boost plant secondary metabolites. It highlights synergistic multielicitor strategies for crop quality and functional foods, while critically addressing current limitations and ...
Yifei Sun, Daoyan Xiao, Xingyue Li, Zhaofei Wang, Maoqin Xia, Chao Song, Hong‐Lei Li   +6 more
wiley   +1 more source

Deciphering Cold Stress Resilience: Multiomics Insights in Contrasting Wheat Genotypes From the Western Himalayas

Plant Biotechnology Journal, Volume 24, Issue 7, Page 4577-4598, July 2026.
ABSTRACT Cold stress threatens wheat productivity, particularly in regions with extreme climatic conditions. To elucidate the molecular mechanisms underlying wheat's response to cold stress, we performed a multiomics analysis integrating lipidomics, transcriptomics, proteomics and metabolomics.
Sofora Jan, Farkhandah Jan, Mukesh Rathore, Yogita Singh, Prexha Kapoor, Palak Chaturvedi, Arindam Ghatak, Palakurthi Ramesh, Upendra Kumar, Manoj Prasad, Sundeep Kumar, Sachin Rustgi, Wolfram Weckwerth, Sanjay Kalia, Rajeev Kumar Varshney, Reyazul Rouf Mir   +15 more
wiley   +1 more source

Étude chimique et spectroscopique de la stéréochimie des quaternisations sur l'azote des tropanes [PDF]

, 2019
Nous avons détermine le cours stérique préférentiel de la quaternisation des tropanes, dans le but de faciliter l'étude des effets physiologiques des sels quaternaires , étant donné la relation stéréochimie-activité pharmacologique.
Frehel, Daniel
core  

The Early Response to Urea, Nitrate, or Ammonium and Iron Resupply in Tomato Roots Highlights the Induction of FER, bHLHs, UMAMITs, and MATEs

Physiologia Plantarum, Volume 178, Issue 4, July/August 2026.
ABSTRACT Depending on the nitrogen (N) form available to roots, plants activate different transcriptional and metabolic pathways; this can consequently translate into differences in the composition and release of root exudates. To address the existing knowledge gap regarding the relationship between the availability of Iron (Fe) and different N forms ...
Arianna Lodovici, Leilei Zhang, Nicola Tomasi, Gabriella Vinci, Fabio Marroni, Barbara Piani, Fatemeh Hassanvand, Mustapha Arkoun, Luigi Lucini, Laura Zanin   +9 more
wiley   +1 more source

Ipvelutine, 7β-acetoxy-2α-(tigloyloxy)tropane, an unusual tropane alkaloid from Ipomoea velutina R. BR. (Convolvulaceae) [PDF]

, 2013
Convolvulaceae provide a rich source of tropane alkaloids, however, 2-substi-tuted tropanes have been described for only few species of this taxon.
Eich, Eckart, Müller, Frank, Siems, Karsten, Ott, Sonja Christina, Jenett-Siems, Kristina, Hilker, Monika   +5 more
core   +1 more source

Safety of roasted seeds from Plukenetia volubilis L. as a traditional food from a third country pursuant to Regulation (EU) No 2015/2283

EFSA Journal, Volume 24, Issue 7, July 2026.
Abstract Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver an opinion on roasted seeds from Plukenetia volubilis L. as a Traditional Food from a third country (TF) pursuant to Regulation (EU) 2015/2283. Roasted seeds from Plukenetia volubilis L.
EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA), Dominique Turck, Torsten Bohn, Montaña Cámara, Jacqueline Castenmiller, Stefaan De Henauw, Ángeles Jos, Alexandre Maciuk, Inge Mangelsdorf, Breige McNulty, Androniki Naska, Kristina Pentieva, Alfonso Siani, Frank Thies, Margarita Aguilera‐Gómez, Thomas Frenzel, Francesca Marcon, Harry J. McArdle, Peter Moldeus, Monika Neuhäuser‐Berthold, Marcello Laganaro, Emanuela Turla, Karen Ildico Hirsch‐Ernst   +23 more
wiley   +1 more source