Results 21 to 30 of about 61,052 (193)

High Variability in Pre-Oviposition Time Independent of Diet Available at Eclosion: A key Reproductive Trait in the Ladybird Beetle Harmonia axyridis (Coleoptera: Coccinellidae) in Its Native Range

open access: yesInsects, 2021
While insect predators need high-quality food to reach sexual maturity and reproduce, starvation following adult eclosion may occur when prey are missing in agroecosystems. This study explores whether the type of diet available at eclosion determines the
Séverin Hatt, Naoya Osawa
doaj   +1 more source

Interaction of exogenous factors (light and temperature) in their influence on the daily pattern of adult eclosion in Trichogramma embryophagum (Hymenoptera: Trichogrammatidae)

open access: yesEuropean Journal of Entomology, 2002
A comparative study of the direct influence of single, non-repetitive changes of light and/or temperature on the daily pattern of adult eclosion was conducted in laboratory conditions with the egg parasitoid, Trichogramma embryophagum (Hartig).
Svetlana G. KARPOVA, Sergey Ya. REZNIK
doaj   +1 more source

Accuracy of fruit-fly eclosion rhythms evolves by strengthening circadian gating rather than developmental fine-tuning

open access: yesBiology Open, 2019
Fruit flies (Drosophila melanogaster) eclose from their pupae mainly around dawn. The timing of eclosion is thought to confer adaptive benefits to the organisms and thus shows remarkable accuracy. However, it is not clear what factors are involved in the
Vishwanath Varma   +4 more
doaj   +1 more source

Light and peptidergic eclosion hormone neurons stimulate a rapid eclosion response that masks circadian emergence inDrosophila [PDF]

open access: yesJournal of Experimental Biology, 2008
SUMMARYLight signals can entrain circadian clocks, but they can also mask aspects of the circadian output. We have analyzed the masking effects of a lights-on(LOn) signal on Drosophila eclosion. The LOn response results in 12–21% of the flies that emerge on a given day eclosing within 10 min of the LOn signal.
Susan L, McNabb, James W, Truman
openaire   +2 more sources

Influence of climatic factors on the life stages of Aedes mosquitoes and vectorial transmission: A review

open access: yesJournal of Vector Borne Diseases
Vector-borne diseases are rampant across the world. Studies have been conducted to assess the impact of climatic factors on the life stages of various mosquito species.
Pooja Prasad   +7 more
doaj   +1 more source

Temperature influence on embryonic development of Anopheles albitarsis and Anopheles aquasalis

open access: yesMemorias do Instituto Oswaldo Cruz, 2002
Temperature influence on the embryonic development of Anopheles aquasalis and An. albitarsis was investigated. At 26ºC, 75% and 60% of respectively An. aquasalis and An.
Sabrina Cardozo Gonçalvez de Carvalho   +3 more
doaj   +1 more source

Efecto de la combinación de Metarhizium anisopliae y Gliocladium virens sobre la oviposición, eclosión y emergencia de Aedes aegypti

open access: yesSalud Pública de México, 2020
Objetivo. Evaluar el efecto de la combinación de Metarhizium anisopliae y Gliocladium virens, ambos con Aqua Reslin Super, sobre oviposición, eclosión y emergencia de Aedes aegypti. Material y métodos. Se realizaron evaluaciones para determinar el efecto
José Luis Torres-Estrada   +2 more
doaj   +1 more source

Subversion of Atypical Mucin Traps by a Spore‐Coat Effector Blocks Cellular Immunity in Drosophila

open access: yesAdvanced Science, EarlyView.
While the entomopathogenic fungus Metarhizium robertsii can evade insect humoral immunity, its subversion of cellular defenses is still elusive. We identify Eac1 as a spore‐coat protein essential for infecting drosophilids by targeting atypical mucins (Sgf1 and Sgf2), which can entrap spores in a gel matrix and thereby facilitate hemocyte encapsulation.
Shiqin Li   +7 more
wiley   +1 more source

The Alzheimer’s Disease γ-Secretase Generates Higher 42:40 Ratios for β-Amyloid Than for p3 Peptides

open access: yesCell Reports, 2017
Alzheimer’s disease is characterized by intracerebral deposition of β-amyloid (Aβ). While Aβ40 is the most abundant form, neurotoxicity is mainly mediated by Aβ42.
Gabriele Siegel   +5 more
doaj   +1 more source

Non-canonical Eclosion Hormone-Expressing Cells Regulate Drosophila Ecdysis

open access: yesiScience, 2020
Summary: Eclosion hormone (EH) was originally identified as a brain-derived hormone capable of inducing the behavioral sequences required for molting across insect species.
Robert L. Scott   +6 more
doaj   +1 more source

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