Results 61 to 70 of about 7,892 (198)

Prothoracicotropic hormone acts as a neuroendocrine switch between pupal diapause and adult development. [PDF]

PLoS ONE, 2013
Diapause is a programmed developmental arrest that has evolved in a wide variety of organisms and allows them survive unfavorable seasons. This developmental state is particularly common in insects.
Akira Mizoguchi, Shintaro Ohsumi, Katuji Kobayashi, Naoki Okamoto, Nobuto Yamada, Ken Tateishi, Yoshinori Fujimoto, Hiroshi Kataoka   +7 more
doaj   +1 more source

Processionary Moth Exposure in Europe: Toxic–Irritant and Immunoglobulin E‐Mediated Endotypes, Diagnosis and Management

Clinical &Experimental Allergy, EarlyView.
Most reactions are toxic–irritant, driven by epithelial injury and neuro‐inflammatory activation. IgE‐mediated allergy is less common but may cause immediate systemic reactions. Endotype differentiation guides diagnosis, risk stratification and management.
Prasad Dasari, Josefine Haas, Wolfgang Rohe, Kai Gloyna, Christoph Viebahn, Susann Forkel, Michael Szardenings, Christine Stadelmann, Michael P. Schön, Timo Buhl   +9 more
wiley   +1 more source

Rearing Istocheta aldrichi (Diptera: Tachinidae) From Field‐Collected Japanese Beetles (Popillia japonica): 1. Methods to Improve Insect Collection and Parasitoid Pupariation

Entomologia Experimentalis et Applicata, EarlyView.
We describe methods for collecting and rearing the tachinid parasitoid Istocheta aldrichi from parasitized Japanese beetle adults. Hosts can be collected by hand and reared in the laboratory, or by using modified trap containers with added plant material and substrate to provide suitable conditions for I.
Simon Legault, Josée Doyon, Paul K. Abram, Jacques Brodeur   +3 more
wiley   +1 more source

Rearing Istocheta aldrichi (Diptera: Tachinidae) From Field‐Collected Japanese Beetles (Popillia japonica): 2. Methods to Improve Overwintering, Adult Emergence and Longevity

Entomologia Experimentalis et Applicata, EarlyView.
Successful rearing of Istocheta aldrichi, a tachinid parasitoid of invasive Japanese beetle, depended on conditions before, during, and after overwintering. Longer cold exposure increased adult emergence and accelerated post‐diapause development. Early transfer of puparia to cool conditions improved survival, while spring temperature manipulation ...
Paul K. Abram, Simon Legault, Josée Doyon, Victoria Makovetski, Jacob H. Miall, Jean‐Philippe Parent, Jason Thiessen, Jacques Brodeur   +7 more
wiley   +1 more source

THE PHYSIOLOGY OF INSECT DIAPAUSE. IX. THE CYTOCHROME OXIDASE SYSTEM IN RELATION TO THE DIAPAUSE AND DEVELOPMENT OF THE CECROPIA SILKWORM

The Biological Bulletin, 1954
1. The effects of mixtures of carbon monoxide and oxygen on the growth and metamorphosis of the Cecropia silkworm were examined at successive stages of embryonic and post-embryonic development.2. Embryos, mature larvae, and adults are killed by five days of exposure to carbon monoxide/oxygen ratios of 20:1 or 25:1.
Schneiderman, Howard A, Williams, Carroll M   +1 more
openaire   +3 more sources

Life‐History Traits and Overwintering of Actia interrupta (Diptera: Tachinidae), a Larval Parasitoid of Choristoneura fumiferana (Lepidoptera: Tortricidae)

Entomologia Experimentalis et Applicata, EarlyView.
Actia interrupta is a larval tachinid parasitoid that plays a key role in regulating low‐density populations of the eastern spruce budworm. We describe its immature stages, life‐history traits, host‐searching behavior, development, and confirm its larviparous reproductive strategy.
Véronique Martel, Jacques Régnière, Jean‐Claude Thireau, Rob C. Johns   +3 more
wiley   +1 more source

Identification of differentially expressed genes and proteins related to diapause in Lymantria dispar: Insights for the mechanism of diapause from transcriptome and proteome analyses.

PLoS ONE
Spongy moth (Lymantria dispar Linnaeus) is a globally recognized quarantine leaf-eating pest. Spongy moths typically enter diapause after completing embryonic development and overwinter in the egg stage.
Qing Xie, Xiaofan Ma, Yafei Li, Wenzhuai Ji, Fengrui Dou, Xiue Zhu, Juan Shi, Yixia Cao   +7 more
doaj   +1 more source

Evidence that microRNAs are part of the molecular toolkit regulating adult reproductive diapause in the mosquito, Culex pipiens.

PLoS ONE, 2018
For many insects, diapause is the primary mechanism for surviving unfavorable seasons. Some aspects of diapause regulation are well known, but we still lack a mechanistic understanding of molecular mechanisms that control the diapause pathway ...
Megan E Meuti, Robin Bautista-Jimenez, Julie A Reynolds   +2 more
doaj   +1 more source

Effects of larval diapause and the juvenile hormone analog, fenoxycarb, on testis development and spermatogenesis in the wax moth, Galleria mellonella (Lepidoptera: Pyralidae)

European Journal of Entomology, 2018
Facultative diapause in the wax moth, Galleria mellonella, occurs in the final larval instar. Application of juvenile hormone analogs (JHAs) to the larvae of this species has similar effects to diapause, in terms of prolonged development of the larval ...
Piotr BEBAS, Bronislaw CYMBOROWSKI, Michalina KAZEK, Marta Anna POLANSKA   +3 more
doaj   +1 more source

Eusocial bee species are exposed to different toxic element profiles despite foraging within the same landscape

Ecological Entomology, EarlyView.
Bombus terrestris and Apis mellifera colonies sharing the same landscape (<50 m from each other) collected pollen with significantly different heavy metal concentrations. B. terrestris‐collected pollen contained 2–7× higher concentrations of arsenic, chromium, cobalt, lead and tin than A. mellifera‐collected pollen.
Sarah B. Scott, Nynke Blömer, Lynn V. Dicks   +2 more
wiley   +1 more source