Results 41 to 50 of about 27,187 (207)

Chemoreceptor Evolution in Hymenoptera and Its Implications for the Evolution of Eusociality. [PDF]

open access: yes, 2015
Eusocial insects, mostly Hymenoptera, have evolved unique colonial lifestyles that rely on the perception of social context mainly through pheromones, and chemoreceptors are hypothesized to have played important adaptive roles in the evolution of ...
Berger, Shelley L   +5 more
core   +2 more sources

Characterization of CrufCSP1 and Its Potential Involvement in Host Location by Cotesia ruficrus (Hymenoptera: Braconidae), an Indigenous Parasitoid of Spodoptera frugiperda (Lepidoptera: Noctuidae) in China

open access: yesInsects, 2023
Chemosensory proteins (CSPs) are a class of soluble proteins that facilitate the recognition of chemical signals in insects. While CSP genes have been identified in many insect species, studies investigating their function remain limited.
Kai-Ru Han   +5 more
doaj   +1 more source

Timed and targeted differential regulation of nitric oxide synthase (NOS) and anti-NOS genes by reward conditioning leading to long-term memory formation [PDF]

open access: yes, 2005
In a number of neuronal models of learning, signaling by the neurotransmitter nitric oxide (NO), synthesized by the enzyme neuronal NO synthase (nNOS), is essential for the formation of long-term memory (LTM). Using the molluscan model system Lymnaea, we
Benjamin, Paul R   +6 more
core   +1 more source

Functional modulation of IFT kinesins extends the sensory repertoire of ciliated neurons in Caenorhabditis elegans [PDF]

open access: yes, 2006
The diversity of sensory cilia on Caenorhabditis elegans neurons allows the animal to detect a variety of sensory stimuli. Sensory cilia are assembled by intraflagellar transport (IFT) kinesins, which transport ciliary precursors, bound to IFT particles,
Evans, James E.   +6 more
core   +2 more sources

Structure and dynamics of the E. coli chemotaxis core signaling complex by cryo-electron tomography and molecular simulations [PDF]

open access: yes, 2020
To enable the processing of chemical gradients, chemotactic bacteria possess large arrays of transmembrane chemoreceptors, the histidine kinase CheA, and the adaptor protein CheW, organized as coupled core-signaling units (CSU). Despite decades of study,
Cassidy, Keith   +8 more
core   +1 more source

Positioning of the Motility Machinery in Halophilic Archaea

open access: yesmBio, 2019
Bacteria and archaea exhibit tactical behavior and can move up and down chemical gradients. This tactical behavior relies on a motility structure, which is guided by a chemosensory system.
Zhengqun Li   +7 more
doaj   +1 more source

Characterization of the chemosensory protein EforCSP3 and its potential involvement in host location by Encarsia formosa

open access: yesJournal of Integrative Agriculture, 2023
Chemosensory proteins (CSPs) perform several functions in insects. This study performed the gene expression, ligand-binding, and molecular docking assays on the EforCSP3 identified in the parasitoid wasp Encarsia formosa, to determine whether EforCSP3 ...
Ke WANG   +6 more
doaj   +1 more source

Extensive local adaptation within the chemosensory system following Drosophila melanogaster's global expansion. [PDF]

open access: yes, 2016
How organisms adapt to new environments is of fundamental biological interest, but poorly understood at the genetic level. Chemosensory systems provide attractive models to address this problem, because they lie between external environmental signals and
Arguello, J.R.   +5 more
core   +1 more source

Expression Pattern, Molecular Docking and Dynamics Simulation Analysis of CSP4 from Sirex nitobei Provides Molecular Basis of CSP Bound to Scent Molecules

open access: yesAgronomy, 2022
Insects stimulate specific behaviors by correctly recognizing scent molecules in the external environment. Sirex nitobei, a wood-boring wasp species native to Asia with a distribution area that includes the Palaearctic and Oriental regions, is a ...
Pingping Guo   +5 more
doaj   +1 more source

A divergent CheW confers plasticity to nucleoid-associated chemosensory arrays.

open access: yesPLoS Genetics, 2019
Chemosensory systems are highly organized signaling pathways that allow bacteria to adapt to environmental changes. The Frz chemosensory system from M. xanthus possesses two CheW-like proteins, FrzA (the core CheW) and FrzB.
Annick Guiseppi   +11 more
doaj   +1 more source

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