Results 111 to 120 of about 24,382 (256)

Distinction and Pharmacological Activity of Monoterpenes and Sesquiterpenes in Different Chemotypes of Cinnamomum camphora (L.) Presl

Applied Sciences
Cinnamomum camphora (L.) Presl, a perennial evergreen tree of the Lauraceae family, exhibits diverse chemotypes and abundant essential oil constituents, which are widely utilized in pharmaceuticals, perfumery, and fine chemicals.
Zhangxiang Min, Bingsong Zheng, Daoliang Yan   +2 more
doaj   +1 more source

Structural Elucidation and Engineering of the (S)‐scoulerine 2‐O‐Methyltransferase Enabling Regioselective Epiberberine Biosynthesis in Coptis chinensis

Plant Biotechnology Journal, EarlyView.
ABSTRACT Protoberberine alkaloids are a characteristic group of natural products in Coptis plants known for their notable pharmacological activities. However, the structural similarity and the substrate promiscuity of their biosynthetic enzymes have left the precise synthetic pathways remain unclarified, posing challenges to regulate product formation.
Jun Song, Di Liu, Shi Chen, Yufeng Tan, Siyu Wang, Shihan Li, Yutong Qin, Guofeng Li, Xufang Tian, Lan Yang, Chong Yuan, Junbo Gou, Wei Huang, Shilin Chen, Yifei Liu   +14 more
wiley   +1 more source

Toxigenic potential of Fusarium graminearum isolated from maize of northwest Argentina [PDF]

, 2013
Twenty six isolates of Fusarium graminearum from grains of maize hybrids harvested in ±west Argentina were grown on autoclaved rice grain to assess their ability to produce type B trichothecenes.
Apud, Gisselle Raquel, Belizán, María Melina Eleonora, Catalan, Cesar Atilio Nazareno, Sampietro, Diego Alejandro, Vattuone, Marta Amelia   +4 more
core   +1 more source

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

Plant Biotechnology Journal, EarlyView.
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

Quantitative single-molecule imaging of TLR4 reveals ligand-specific receptor dimerization [PDF]

, 2017
In humans, invading pathogens are recognized by Toll-like receptors (TLRs). Upon recognition of lipopolysaccharide (LPS) derived from the cell wall of gram-negative bacteria, TLR4 dimerizes and can stimulate two different signaling pathways, the ...
Cottrell, Graeme S., Heilemann, Mike, Krüger, Carmen L., Widera, Darius, Zeuner, Marie-Theres   +4 more
core   +1 more source

Transcriptome and Hormone Regulations Shape Drought Stress‐Dependent Fusarium Head Blight Susceptibility in Different Barley Genotypes

Plant, Cell &Environment, EarlyView.
ABSTRACT Little is known about regulatory mechanisms that crop plants use to respond to combinations of abiotic and biotic stress. We analysed four barley genotypes under simultaneous Fusarium culmorum infection and drought stress by phenotyping for Fusarium Head Blight (FHB) disease, drought stress responses, hormone profiling and transcriptome ...
Felix Hoheneder, Christina Elisabeth Steidele, Michael Gigl, Corinna Dawid, Ralph Hückelhoven   +4 more
wiley   +1 more source

The Essential Oil Composition in Commercial Samples of Verbena officinalis L. Herb from Different Origins

Crops
The key objective of this study was to determine the yield and chemical composition of eight commercial samples and one collected sample of common vervain (Verbena officinalis L.) herb essential oil (EO) originating from seven different countries, and ...
Ain Raal, Getter Dolgošev, Tetiana Ilina, Alla Kovalyova, Martin Lepiku, Andriy Grytsyk, Oleh Koshovyi   +6 more
doaj   +1 more source

Four terpene synthases contribute to the generation of chemotypes in tea tree (Melaleuca alternifolia)

BMC Plant Biology, 2017
Background Terpene rich leaves are a characteristic of Myrtaceae. There is significant qualitative variation in the terpene profile of plants within a single species, which is observable as “chemotypes”.
Amanda Padovan, Andras Keszei, Yasmin Hassan, Sandra T. Krause, Tobias G. Köllner, Jörg Degenhardt, Jonathan Gershenzon, Carsten Külheim, William J. Foley   +8 more
doaj   +1 more source

Response of Melissa officinalis subsp. officinalis seedlings to Fe3O4‐NPs under in vitro conditions: physiological, biochemical and molecular analyses

Plant Biology, EarlyView.
Iron oxide nanoparticles influence the growth, antioxidant capacity, and gene activity of Melissa officinalis subsp. officinalis plants in vitro, revealing their potential as modulators of secondary metabolism. Abstract Application of iron oxide nanoparticles (NP) (Fe3O4‐NPs) in plant biotechnology presents new opportunities for enhancing metabolic ...
E. Bektaş, H. Şahin, H. İ. Güler, K. İ. Bektaş, K. Kaltalioğlu, N. E. Uzun   +5 more
wiley   +1 more source

Chemotyping of Fusarium graminearum using Tri13 trichothecene biosynthetic gene

Journal of Crop Protection, 2013
Fusarium graminearum is one of the most important causes of FHB or wheat scab in different part of the world. This fungus is able to produce widespread Trichothecene mycotoxins such as Nivalenol (NIV) and Deoxynivalenol (DON) which are harmful for both ...
Mostafa Abedi-Tizaki, Seyed Kazem Sabbagh, Mahta Mazaheri Naeini, Saedeh Sepehrikia   +3 more
doaj