Results 101 to 110 of about 30,006 (268)

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

open access: yesPlant 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   +13 more
wiley   +1 more source

Spatiotemporal Metabolome and Single‐Nucleus Transcriptome Integration Illuminates an Auxin Gradient Orchestrated by NtTAC1 Underlying Leaf Angle Regulation in Tobacco

open access: yesPlant Biotechnology Journal, EarlyView.
Proposed model of TAC1‐mediated leaf angle regulation in tobacco. ABSTRACT Plant architecture is key to crop yield, with leaf angle being critical for high‐density cultivation. Although TAC1 represents a promising regulator of leaf angle for breeding, its molecular mechanism remains poorly understood, particularly at single‐nucleus resolution. Here, we
Lin Wang   +11 more
wiley   +1 more source

Synthetic Derivatives of Natural Alkaloid Harmine

open access: yesEurasian Chemico-Technological Journal, 2009
The indole alkaloid harmine was extracted from underground part of Peganum harmala L. With the purpose of obtaining the new biological active derivatives on base of alkaloid harmine the chemical modification was carried out.
M. M. Ismagulova   +4 more
doaj   +1 more source

An indole alkaloid from Strychnos erichsonii [PDF]

open access: yes, 1986
Le premier alcaloïde indolique de type vobasine rencontré dans les #Loganiaceae$ a été isolé des écorces de #Strychnos erichsonii$, récoltées en Guyane Française. Sa structure confirmée par cristallographie Rx.
Forgacs, P.   +6 more
core   +1 more source

Methyl Jasmonate Seed Priming Mitigates the Defence‐Growth Trade‐Off and Tailors Plant Response to Specific Pests

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Seed defence priming is emerging as a novel, cost‐efficient and environmentally safe tool for pest management. It has been proposed as a means to uncouple the defence‐growth trade‐off in plants by enhancing defence responses with minimal fitness costs, but the mechanisms underlying this role remain elusive.
Lucia Talavera‐Mateo   +5 more
wiley   +1 more source

Excelsinidine, A Quaternary Alkaloid from

open access: yesNatural Product Communications, 2007
A chemical investigation of Aspidosperma excelsum yielded excelsinidine ( 1 ), a quaternary indole alkaloid possessing an unusual 1-azoniatricyclo[4.3.3.0]undecane moiety, along with the known compound aspidodasycarpine ( 2 ).
Tanya H. Layne   +3 more
doaj   +1 more source

The Enhancement of Catharanthine Content in Catharanthus roseus Callus Culture Treated with Naphtalene Acetic Acid [PDF]

open access: yes, 2006
The research aim was to examine the enhancement of catharanthine content in Catharanthus roseus callus culture added with different concentration of Naphtalene Acetic Acid (NAA). NAA treatment produced callus that formed hairy roots. Fresh and dry weight
DINGSE PANDIANGAN, NELSON NAINGGOLAN
core  

Phyllobates terribilis [PDF]

open access: yes, 2012
Number of Pages: 5Integrative BiologyGeological ...
Doan, Tiffany M., Nowacki, Anthony M.
core   +1 more source

Advances in organic UV filters for sunscreens over the past decade

open access: yesPhotochemistry 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   +4 more
wiley   +1 more source

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

open access: yesPlant 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

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