Results 41 to 50 of about 3,894 (214)

Effect of Fruit Maturation Stage on the Chemical Composition and Antioxidant and Cytotoxic Activities of Piper nigrum Essential Oil

Flavour and Fragrance Journal, Volume 41, Issue 4, Page 908-922, July 2026.
The essential oils of Piper nigrum show marked chemical and biological variation across fruit maturation stages. Ripe fruits yield oils with the strongest antioxidant and cytotoxic activities, demonstrating that maturation directly modulates volatile composition and enhances the bioactive potential of this aromatic species.
Marcio Marcelo da Siva Pessoa, Jorddy Neves Cruz, Ingryd Nayara de Farias Ramos, André Salim Khayat, Eloisa Helena de Aguiar Andrade, José de Arimatéia Rodrigues do Rego, Davi do Socorro Barros Brasil   +6 more
wiley   +1 more source

The use of secondary metabolite profiling in chemotaxonomy of filamentous fungi

, 2008
A secondary metabolite is a chemical compound produced by a limited number of fungal species in a genus, an order, or even phylum. A profile of secondary metabolites consists of all the different compounds a fungus can produce on a given substratum and ...
Frisvad, Jens Christian, Andersen, Birgitte, Birgitte Andersen, Jens C. Frisvad, Ulf Thrane, Thrane, Ulf   +5 more
core   +1 more source

Phytoplankton diversity and chemotaxonomy in contrasting North Pacific ecosystems [PDF]

, 2023
Background Phytoplankton is the base of majority of ocean ecosystems. It is responsible for half of the global primary production, and different phytoplankton taxa have a unique role in global biogeochemical cycles.
Luka Šupraha, Antonija Matek, Visic, Hrvoje, Sunčica Bosak, Supraha, Luka, Neeley, Aimee, Ljubesic, Zrinka, Aimee Neeley, Matek, Antonija, Zrinka Ljubešić, Ivona Cetinić, Cetinic, Ivona, Hrvoje Višić, Bosak, Suncica   +13 more
core   +1 more source

Characterization of Plant Volatiles Reveals Distinct Metabolic Profiles and Pathways among 12 Brassicaceae Vegetables

Metabolites, 2018
Plants emit characteristic organic volatile compounds (VOCs) with diverse biological/ecological functions. However, the links between plant species/varieties and their phytochemical emission profiles remain elusive.
Yu Liu, Hui Zhang, Shivshankar Umashankar, Xu Liang, Hui Wen Lee, Sanjay Swarup, Choon Nam Ong   +6 more
doaj   +1 more source

Quantifying Shifts in the Absorption Budget of the Labrador Sea as the Dominant Phytoplankton Group Changes Between Diatoms and Phaeocystis

Journal of Geophysical Research: Oceans, Volume 131, Issue 7, July 2026.
Abstract Phytoplankton spring blooms in the Labrador Sea are dominated by diatoms, with Phaeocystis spp. (hereafter Phaeocystis) contributing more than 25% to total phytoplankton biomass. However, in 2015 and 2022, large blooms of Phaeocystis were observed, contributing up to 90% of the surface phytoplankton biomass. In this study, we quantified shifts
K. L. Wilson, E. Devred, T. Perry, S. Clay   +3 more
wiley   +1 more source

Chemotaxonomy of the genus Stemphylium [PDF]

, 2016
The filamentous fungal genus Stemphylium (Anamophic Pleospora) is often found on various crops, and especially the common animal feed plant Medicago sativa (alfalfa) is often infected by this plant pathogen.
Olsen, Kresten Jon Kromphardt, Andersen, Birgitte   +1 more
core  

Use of fatty acids in the chemotaxonomy of the family Selenastraceae (Sphaeropleales, Chlorophyceae)

, 2018
Mori, Cilene Cristina, Bagatini, Inessa Lacativa, Silva, Thais Garcia da, Parrish, Christopher Charles, Vieira, Armando Augusto Henriques (2021): Corrigendum to "Use of fatty acids in the chemotaxonomy of the family Selenastraceae (Sphaeropleales ...
Cilene Cristina Mori, Parrish, Christopher Charles, Henriques Vieira, Armando Augusto, Garcia da Silva, Thais, Silva, Thais Garcia da, Mori, Cilene Cristina, Inessa Lacativa Bagatini, Vieira, Armando Augusto Henriques, Bagatini, Inessa Lacativa, Christopher Charles Parrish, Armando Augusto Henriques Vieira, Thais Garcia da Silva   +11 more
core   +1 more source

Alkaloids In The Chemotaxonomy of Cassla Species

, 2013
Alkaloids In The Chemotaxonomy of Cassla SpeciesAlkaloids In The Chemotaxonomy of Cassla ...
MOHAMED, ALAMIN ELGILANI ELMENHAJ ALI
core   +1 more source

Syringin in some species of the subtribe Centaureinae of the Asteraceae

Acta Societatis Botanicorum Poloniae, 2011
The occurrence of syringin in eight out of ten investigated plant species of the subtribe Centaureinae (Asteraceae) was reported. The compound was isolated from aerial parts of the plants by silica gel column chromatography of methanol extracts. Contents
Joanna Cis, Gerard Nowak, Małgorzata Horoszkiewicz-Hassan, Wanda Kisiel   +3 more
doaj   +1 more source

Population‐Specific Chemotypes in Pseudomisopates rivas‐martinezii (Sanchez Mata) Güemes From La Serrota and Gredos Massifs (Iberian Central Range)

Chemistry &Biodiversity, Volume 23, Issue 6, June 2026.
Pseudomisopates rivas‐martinezii, a critically endangered Iberian endemic, reveals population‐specific chemotypes when analyzed by elemental analysis, FTIR, and GC–MS. Underground tissues from both populations share a convergent histidine‐derived metabolite profile, whereas aerial parts diverge markedly: La Serrota accumulates phenolic derivatives from
Eva Sánchez‐Hernández, María Elena Amat, Mario Cano‐Pérez, Vicente González‐García, Jesús Martín‐Gil, Pablo Martín‐Ramos   +5 more
wiley   +1 more source