Results 101 to 110 of about 429,874 (275)

Analysis of Monoterpenoid Indole Alkaloids Using Electrospray Ionization Tandem Mass Spectrometry

, 2015
Three representative monoterpenoid indole alkaloids isolated from the trunk barks of Winchia calophylla were investigated using electrospray quadrupole time-of-flight tandem mass spectrometry (ESI-QTOF-MS/MS) in positive-ion mode.
Li, Guo-You, Li, Li-Mei, Zhang, Guo-Lin, Wu, Zhi-Jun, Fang, Dong-Mei, Li, LM (reprint author), Chengdu Med Coll, Ctr Sci Res, Chengdu 610083, Peoples R China.   +5 more
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Asperversiamides, Linearly Fused Prenylated Indole Alkaloids from the Marine-Derived Fungus Aspergillus versicolor.

Journal of Organic Chemistry, 2018
Asperversiamides A-H (1-8), eight linearly fused prenylated indole alkaloids featuring an unusual pyrano[3,2- f]indole unit, were isolated from the marine-derived fungus Aspergillus versicolor.
Huaqiang Li, Wei-Guang Sun, Mengyi Deng, Qun Zhou, Jian-Ping Wang, Jun-jun Liu, Chun-Mei Chen, Chang-xing Qi, Zeng-Wei Luo, Yongbo Xue, Hu-Cheng Zhu, Yonghui Zhang   +11 more
semanticscholar   +1 more source

Constitutive Metabolomic Profiles Linked to Seasonal Climate Niche Adaptation and Resilience to Black Rot in Cabbage

Plant, Cell &Environment, EarlyView.
ABSTRACT Plants are dynamic chemical factories that produce diverse specialised metabolites essential for growth, defence, and environmental adaptation. Metabolomes, shaped by genetic architecture, enable plants to respond to abiotic and biotic pressures, including temperature fluctuations.
Refiloe M. M. Motsatsi, Kamogelo Mmotla, Ian A. Dubery, Msizi I. Mhlongo   +3 more
wiley   +1 more source

Biosynthetically‐Inspired Oxidative Cleavage Platform Enables Rapid Access to Diverse and Architecturally Complex Chemotypes From Indole Alkaloids

ChemistryEurope
High‐throughput screening (HTS) of compound libraries is a primary driver in the discovery of therapeutic leads. HTS libraries are largely composed of structurally simple organic compounds bearing few, if any, complex molecules which limits the kinds of ...
Derek A. Leas, Eli S. Levit, Alexis A. Bragg, Taylor A. Gerrein, Khalil A. Abboud, Pingrong Wei, Lukasz M. Dobrzycki, Robert W. Huigens III   +7 more
doaj   +1 more source

Hydroxycinnamic Acid Amides Emerge as Multifunctional Molecules Involved in Regeneration and Volatile Signalling During Wound Responses

Plant, Cell &Environment, EarlyView.
ABSTRACT Hydroxycinnamic acid amides (HCAAs) are phenylpropanoid‐derived metabolites traditionally associated with antimicrobial defence and cell wall reinforcement during plant–pathogen interactions. However, their contribution to plant responses to mechanical injury, particularly in wound healing and damage‐induced signalling, remains poorly ...
Carmen Grech‐Hernández, Andrade Cynthia, Francisco Vera‐Sirera, Álvaro Luis Jiménez‐Jiménez, Marc Valls, Nuria S. Coll, Ismael Rodrigo, José María Bellés, María Pilar López‐Gresa, Purificación Lisón   +9 more
wiley   +1 more source

Indole Alkaloids From Peschiera Campestris

, 2015
The investigation of leaf, bark and root extracts of Peschiera campestris, a new species discovered in Brasilia, Brazil, afforded ten indole alkaloids. The main component from the root extract was 12-methoxy-Nb-methylvoachalotine (ca 0.25 % of the dried ...
Pereira B.D.S., Marsaioli A.J., Gower A.E.   +2 more
core   +1 more source

Advances in organic UV filters for sunscreens over the past decade

Photochemistry and Photobiology, EarlyView.
Highlighted organic UV filter frameworks that have been described for sunscreens over the past decade divided into three groups: derivatives of or inspired by approved organic UV filters, natural product‐based compounds, and miscellaneous. Abstract Ultraviolet (UV) radiation is a major environmental factor in photoaging, erythema, and skin cancer ...
Gabriela Zanella Marcon, Maria Carolina Theisen, Andressa Motta Castro, Giovana Jones Radke, Fernando Fumagalli   +4 more
wiley   +1 more source

Total Synthesis of Aspidosperma and Strychnos Alkaloids through Indole Dearomatization.

Chemistry, 2019
Monoterpenoid indole alkaloids are the major class of tryptamine-derived alkaloids found in nature. Together with their structural complexity, this has attracted great interest from synthetic organic chemists.
J. Saya, Eelco Ruijter, R. Orrù
semanticscholar   +1 more source

Glyphosate residues in soil alter herbivore‐induced plant volatiles and affect predatory insect behaviour

Plant Biology, EarlyView.
Herbicide residues in soil disrupt plant–insect signalling, reducing the effectiveness of biological pest control. Abstract Plants under herbivore attack emit distinct blends of herbivore‐induced plant volatiles (HIPVs) which serve as signalling cues for predatory insects.
B. Fuchs, J. D. Blande, V. Weijola
wiley   +1 more source

Tropane alkaloids in food [PDF]

, 2010
A large number of wild and cultured plants produce secondary metabolites that are toxic to humans and animals. Through accidental or intentional mixing of these plants with normal food and feed the consumers of these products will be exposed to the ...
Adamse, P., Egmond, H.P., van
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