Results 71 to 80 of about 15,268 (209)

Isolated Organosodium and ‐Potassium Intermediates: Understanding Metal Effects on Anionic Styrene‐Isoprene Copolymerization

Small, EarlyView.
Reactive organosodium and organopotassium intermediates of the anionic styrene and isoprene polymerization are presented. Crystal structures of alkoxide‐free intermediates are obtained by X‐ray diffraction, and their isolation enables kinetic polymerization studies.
Annika Schmidt, Frédéric S. Petrov, Yurdagül Hergül, Axel H. E. Müller, Holger Frey, Carsten Strohmann   +5 more
wiley   +1 more source

LsFAMeT and LsJHAMT coordinate JH biosynthesis to regulate fecundity in Laodelphax striatellus

Insect Science, EarlyView.
The small brown planthopper (SBPH), Laodelphax striatellus, can trigger large‐scale outbreaks when encountering suitable habitats during migration due to their strong reproductive ability. This study investigated the role of juvenile hormone (JH) in regulating SBPH reproduction.
Yan Guo, Bing‐Bing Shi, Xue‐Qi Zhang, Qiong Yang   +3 more
wiley   +1 more source

Estimates of global terrestrial isoprene emissions using MEGAN (Model of Emissions of Gases and Aerosols from Nature) [PDF]

Atmospheric Chemistry and Physics, 2006
Reactive gases and aerosols are produced by terrestrial ecosystems, processed within plant canopies, and can then be emitted into the above-canopy atmosphere.
A. Guenther, T. Karl, P. Harley, C. Wiedinmyer, P. I. Palmer, C. Geron   +5 more
doaj  

Synergistic enhancement SPF from annatto seed oil and alkaline extracts in association with organic UV filters

International Journal of Cosmetic Science, EarlyView.
An SPF formulation incorporating Bixa orellana seed extracts and oils showed enhanced UV protection, highlighting the potential of natural bioactive compounds as effective boosters in photoprotective cosmetic products. Abstract Objective This study investigated the antioxidant activity of oil and alkaline aqueous extracts obtained from Bixa orellana ...
Ister Cordeiro Mariotini, Aliny Rodrigues de Jesus da Conceição, Rodrigo Rezende Kitagawa, Bernardo de Jesus Pavuna, Claudia Masrouah Jamal, Claudineia Aparecida Sales de Oliveira Pinto, André Rolim Baby, Fabiana Vieira Lima Solino Pessoa, Mariana Santos Pinheiro   +8 more
wiley   +1 more source

Isoprene Responses and Functions in Plants Challenged by Environmental Pressures Associated to Climate Change

Frontiers in Plant Science, 2017
The functional reasons for isoprene emission are still a matter of hot debate. It was hypothesized that isoprene biosynthesis evolved as an ancestral mechanism in plants adapted to high water availability, to cope with transient and recurrent oxidative ...
Alessio Fini, Cecilia Brunetti, Cecilia Brunetti, Francesco Loreto, Mauro Centritto, Francesco Ferrini, Massimiliano Tattini   +6 more
doaj   +1 more source

Concurrent Measurement of O2 Production and Isoprene Emission During Photosynthesis: Pros, Cons and Metabolic Implications of Responses to Light, CO2 and Temperature

Plant, Cell &Environment, EarlyView.
ABSTRACT Traditional leaf gas exchange experiments have focused on net CO2 exchange (Anet). Here, using California poplar (Populus trichocarpa), we coupled measurements of net oxygen production (NOP), isoprene emissions and δ18O in O2 to traditional CO2/H2O gas exchange with chlorophyll fluorescence, and measured light, CO2 and temperature response ...
Kolby Jeremiah Jardine, Suman Som, Luiza Beraldi Gallo, Jilian Demus, Tomas Ferreira Domingues, Christina Marie Wistrom, Lianhong Gu, Guillaume Tcherkez, Ülo Niinemets   +8 more
wiley   +1 more source

Induced Volatile Chemistry and Arthropod Predation Across a Tree Diversity Gradient

Plant, Cell &Environment, EarlyView.
ABSTRACT Plant volatile organic compounds (VOCs) play a key role in defence against herbivores and in mediating multitrophic interactions. Yet, how surrounding plant diversity modulates these responses in forest trees remains poorly understood. We examined the effects of tree species richness on induced VOC emissions and arthropod predation in Quercus ...
Gabriela A. S. Escaliante, Julia Imola Piko, Andreas Schuldt, Alexander Weinhold, Nicole M. van Dam   +4 more
wiley   +1 more source

Deciphering isoprene variability across dozen of Chinese and overseas cities using deep transfer learning [PDF]

Atmospheric Chemistry and Physics
Isoprene, the globally most abundant volatile organic compound, significantly impacts air quality. Determining isoprene concentration variations and their drivers is a persistent challenge.
S. Liu, X. Lyu, F. Yang, Z. Shi, X. Huang, T. Liu, H. Wang, M. Li, J. Gao, N. Chen, G. Shi, Y. Zou, C. Pei, C. Tong, X. Liu, L. Zhou, A. B. Guenther, N. Wang   +17 more
doaj   +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

isoprenes

, 2014
Citation: 'isoprenes' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.I03305 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source