Results 1 to 10 of about 2,436 (203)

Diversity of RNA viruses in the cosmopolitan monoxenous trypanosomatid Leptomonas pyrrhocoris [PDF]

open access: yesBMC Biology, 2023
Background Trypanosomatids are parasitic flagellates well known because of some representatives infecting humans, domestic animals, and cultural plants.
Diego H. Macedo   +17 more
doaj   +2 more sources

Steroid receptor coactivator TAIMAN is a new modulator of insect circadian clock. [PDF]

open access: yesPLoS Genetics, 2023
TAIMAN (TAI), the only insect ortholog of mammalian Steroid Receptor Coactivators (SRCs), is a critical modulator of ecdysone and juvenile hormone (JH) signaling pathways, which govern insect development and reproduction.
Vlastimil Smykal   +10 more
doaj   +2 more sources

Comparative Analysis of Three Trypanosomatid Catalases of Different Origin [PDF]

open access: yesAntioxidants, 2021
Most trypanosomatid flagellates do not have catalase. In the evolution of this group, the gene encoding catalase has been independently acquired at least three times from three different bacterial groups.
Ľubomíra Chmelová   +7 more
doaj   +2 more sources

Habitat Temperatures of the Red Firebug, Pyrrhocoris apterus: The Value of Small-Scale Climate Data Measurement [PDF]

open access: yesInsects, 2023
Ambient temperature is a main parameter that determines the thriving and propagation of ectothermic insects. It affects egg and larval development as well as adults’ survival and successful overwintering.
Helmut Käfer   +2 more
doaj   +2 more sources

Effect of Male Body Size on Female Reproduction in Pyrrhocoris apterus (L.) (Heteroptera, Pyrrhocoridae) [PDF]

open access: yesInsects, 2022
Females and males of the abundant heteropteran species Pyrrhocoris apterus (L.) mate with the larger of the available partners. The male benefits from copulation with a large female, which is more productive than a small female.
Alois Honek, Zdenka Martinkova
doaj   +2 more sources

Salivary proteins potentially derived from horizontal gene transfer are critical for salivary sheath formation and other feeding processes [PDF]

open access: yesCommunications Biology
Herbivorous insects employ an array of salivary proteins to aid feeding. However, the mechanisms behind the recruitment and evolution of these genes to mediate plant-insect interactions remain poorly understood.
Hai-Jian Huang   +9 more
doaj   +2 more sources

Comparative Analysis of Volatile Defensive Secretions of Three Species of Pyrrhocoridae (Insecta: Heteroptera) by Gas Chromatography-Mass Spectrometric Method. [PDF]

open access: yesPLoS ONE, 2016
The true bugs (Hemiptera: Heteroptera) have evolved a system of well-developed scent glands that produce diverse and frequently strongly odorous compounds that act mainly as chemical protection against predators.
Jan Krajicek   +7 more
doaj   +1 more source

The 70 kDa heat shock protein assists during the repair of chilling injury in the insect, Pyrrhocoris apterus. [PDF]

open access: yesPLoS ONE, 2009
BACKGROUND: The Pyrrhocoris apterus (Insecta: Heteroptera) adults attain high levels of cold tolerance during their overwintering diapause. Non-diapause reproducing adults, however, lack the capacity to express a whole array of cold-tolerance adaptations
Vladimír Kostál   +1 more
doaj   +1 more source

Light and Temperature Synchronizes Locomotor Activity in the Linden Bug, Pyrrhocoris apterus

open access: yesFrontiers in Physiology, 2020
Circadian clocks are synchronized with the external environment by light and temperature. The effect of these cues on behavior is well-characterized in Drosophila, however, little is known about synchronization in non-model insect species.
Magdalena Maria Kaniewska   +5 more
doaj   +1 more source

Time measurement in insect photoperiodism: The role of photophase duration and light intensity

open access: yesEuropean Journal of Entomology, 2022
The initial stages of diapause induction - as summer gives way to autumn - involve a process of time measurement in which the duration of daylength (or nightlength) is determined by a photoperiodic 'clock' based upon the circadian system. In many insects
David SAUNDERS
doaj   +1 more source

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