Results 51 to 60 of about 1,710,215 (241)

The plant metabolome guides fitness-relevant foraging decisions of a specialist herbivore.

open access: yesPLoS Biology, 2021
Plants produce complex mixtures of primary and secondary metabolites. Herbivores use these metabolites as behavioral cues to increase their fitness. However, how herbivores combine and integrate different metabolite classes into fitness-relevant foraging
Ricardo A R Machado   +7 more
doaj   +1 more source

Host Acceptance and Plant Resistance: A Comparative Behavioral Study of Myzus persicae and Acyrthosiphon pisum

open access: yesInsects, 2021
Aphids are prominent phloem-feeding insect pests. Myzus persicae and Acyrthosiphon pisum are generalist and specialist species, respectively. In this study, these two aphid species were used to investigate host acceptance and plant resistance to aphid ...
Yi-Syuan Jhou   +3 more
doaj   +1 more source

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices   +3 more
wiley   +1 more source

Acquisition of chemical recognition cues facilitates integration into ant societies

open access: yesBMC Ecology, 2011
Background Social insects maintain the integrity of their societies by discriminating between colony members and foreigners through cuticular hydrocarbon (CHC) signatures.
von Beeren Christoph   +3 more
doaj   +1 more source

Born in an alien nest: how do social parasite male offspring escape from host aggression? [PDF]

open access: yesPLoS ONE, 2012
Social parasites exploit the colony resources of social insects. Some of them exploit the host colony as a food resource or as a shelter whereas other species also exploit the brood care behavior of their social host. Some of these species have even lost
Patrick Lhomme   +4 more
doaj   +1 more source

Effects of Methyl Salicylate on Host Plant Acceptance and Feeding by the Aphid Rhopalosiphum padi

open access: yesFrontiers in Plant Science, 2021
Methyl salicylate (MeSA) is a volatile shown to act as an inducer of plant defense against pathogens and certain herbivores, particularly aphids. It has been shown to have potential for aphid pest management, but knowledge on its mode of action is ...
Velemir Ninkovic   +4 more
doaj   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

open access: yesFEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Towards the integration of culture into the Unified Theory of Acceptance and Use of Technology [PDF]

open access: yes, 2012
Educational technology is increasingly used in multicultural contexts and across national cultures. Educational technology users with different national and professional backgrounds may, however, exhibit different attitudes towards technology.
Armin Weinberger   +9 more
core   +1 more source

Host acceptance by three native braconid parasitoid species attacking larvae of the Mexican fruit fly, Anastrepha ludens (Diptera, Tephritidae)

open access: yesJournal of Hymenoptera Research, 2018
We studied the oviposition and host acceptance behavior of three braconid parasitoid species native to Mexico, Doryctobracon crawfordi (Viereck), Opius hirtus (Fischer), and Utetes anastrephae (Viereck), with potential to be considered as biocontrol ...
Amanda Ayala   +4 more
doaj   +3 more sources

Acceptive Immunity: The Role of Fucosylated Glycans in Human Host–Microbiome Interactions

open access: yesInternational Journal of Molecular Sciences, 2021
The growth in the number of chronic non-communicable diseases in the second half of the past century and in the first two decades of the new century is largely due to the disruption of the relationship between the human body and its symbiotic microbiota, and not pathogens.
Svetlana Kononova   +4 more
openaire   +2 more sources

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