Results 71 to 80 of about 61,447 (248)

Do aphid endosymbiotic bacteria influence parasitoid searching behaviour through changes in aphid honeydew production?

Ecological Entomology, EarlyView.
Hamiltonella defensa infection increases honeydew production in certain aphid genotypes, potentially modifying aphid feeding behaviour. Parasitoid wasps, Aphidius ervi, are more attracted to honeydew from H. defensa‐infected aphids; though larger honeydew amounts may slightly deter searching.
Desiré Macheda, Alexandre Foito, Katharine F. Preedy, Colin J. Alexander, Ankush Prashar, Alison J. Karley   +5 more
wiley   +1 more source

Cape Gooseberry (Physalis peruviana L.) Volatile Compounds Determination by Vacuum-Assisted Sorbent Extraction (VASE)—Selected Aspects

Molecules
Vacuum-Assisted Sorbent Extraction (VASE) is a novel extraction technique that uses vacuum to facilitate the transfer of volatile compounds from the matrix to the sorbent. This technique was explored for extraction of volatiles from cape gooseberry fruit,
Henryk H. Jeleń, Monika Marcinkowska
doaj   +1 more source

Development of Effervescent-assisted Liquid Phase Microextraction using 1-dodecanol for Determination of Ketoprofen Drug in Water

ASM Science Journal, 2020
A rapid and straightforward method based on effervescent-assisted dispersive liquid-liquid microextraction combined with high-performance liquid chromatography-ultraviolet (HPLC-UV) detection for preconcentration of ketoprofen in water samples was ...
Wan Mohd Afiq Wan Mohd Khalik
doaj   +1 more source

2-pentanone production from hexanoic acid by Penicillium roqueforti from blue cheese:is this the pathway used in humans? [PDF]

, 2014
Production of 2-pentanone, a methylketone, is increased in fasting ketotic humans. Its origin is unknown. We hypothesised that it is formed via β-oxidation of hexanoic acid by the peroxisomal pathway proposed for methylketone-producing fungi and yeasts ...
Mills, Graham A., Walker, Valerie
core   +2 more sources

Rhizobia–Bean Symbiosis Increases Root Herbivore Attraction and Growth via Volatile Signals and Enhanced Nutrition

Plant, Cell &Environment, EarlyView.
ABSTRACT The symbiosis between nitrogen‐fixing rhizobia and plants is considered mutually beneficial, yet its indirect effects on other organisms remain understudied. We examined how rhizobia symbiosis in Phaseolus vulgaris influences the behaviour and performance of Diabrotica balteata larvae. Specifically, we tested larval preference for nodulated (R+
Camilo Rivera, Tom Wakley, Gregory Röder, Carlos Bustos‐Segura, Yunhe Li, Betty Benrey   +5 more
wiley   +1 more source

Green Microextraction Techniques for the Determination of Cosmetic Ingredients and Contaminants

Analytica
The rapid growth and diversification of the cosmetic industry have led to increasingly complex formulations containing numerous bioactive ingredients, excipients, and synthetic additives, often delivered through advanced nanostructured systems.
Marianna Ntorkou, Christina Patakidou, Styliani Nisyriou, Constantinos K. Zacharis   +3 more
doaj   +1 more source

Aboveground and Belowground Insect Herbivory Changes Maize‐Wireworm Interactions via Root Volatile Cues

Plant, Cell &Environment, EarlyView.
ABSTRACT The rhizosphere harbours critical plant‐herbivore interactions often mediated by small lipophilic molecules (SLMs). Despite the agricultural importance of many soil‐dwelling insects, surprisingly little is known about chemically mediated belowground crop‐pest interactions. Root and shoot herbivores can influence these interactions by modifying
Diego M. Magalhães, Gareth A. Thomas, Oliver Clark‐Hattingh, Anusha Mohan‐Kumar, Pradip Songara, John C. Caulfield, David M. Withall, Michael A. Birkett, József Vuts   +8 more
wiley   +1 more source

Microextraction of Polycyclic Musks from Surface Water with Deep-Eutectic-Solvent-Coated Membrane Followed by Gas-Chromatography–Mass Spectrometry Analysis

Chemosensors
Deep eutectic solvents (DESs), a novel class of eco-friendly solvents, are attracting considerable attention in extraction techniques. In this study, a hydrophobic DES, created by combining a quaternary ammonium salt and hexanoic acid, was coated onto a ...
Fabiana Terlizzi, José O. Fernandes, Tamara Gonzalez, Mateus H. Petrarca, Leandro dos S. Silva, Rafaela S. Lamarca, Mario H. Gonzalez, Rui Lapa, Sara C. Cunha   +8 more
doaj   +1 more source

Use of headspace solid-phase microextraction for the analysis and characterisation of volatile compounds in rumen contents : a thesis presented in partial fulfillment of the requirements for the degree of Masterate of Science in Chemistry at Massey University [PDF]

, 2005
Appendix 2&3 removed due to copyright restrictions. Please consult print copy in Library.Volatile fatty acids (VFAs), alkyl phenols and indolic compounds are produced by rumen microbes during the fermentation of forages in ruminants.
Lu, Shengyi
core  

Atmospheric pressure gas chromatography-time-of-flight-mass spectrometry (APGC-ToF-MS) for the determination of regulated and emerging contaminants in aqueous samples after stir bar sorptive extraction (SBSE) [PDF]

, 2014
This work presents the development, optimization and validation of a multi-residue method for the simultaneous determination of 102 contaminants, including fragrances, UV filters, repellents, endocrine disruptors, biocides, polycyclic aromatic ...
Arbulu, Azzouz, Barco-Bonilla, Buchholz, Cacho, Camino-Sánchez, Canellas, de Sousa, Domeño, Eduardo González-Mazo, Esteve-Turrillas, Gago-Ferrero, Gomez, Jaspers, Johnsen, Kataoka, Kawaguchi, Kawaguchi, Krüger, Kumirska, Liu, Machado, Magi, Marina G. Pintado-Herrera, Negreira, Ochiai, O′Toole, Pablo A. Lara-Martín, Pintado-Herrera, Pintado-Herrera, Portolés, Prieto, Pérez-Carrera, Quintana, Ramírez, Rodil, Sampedro, Sanchez-Ortega, Stevens   +38 more
core   +2 more sources