Results 1 to 10 of about 72,052 (310)
Live-Cell Imaging of Drosophila melanogaster Third Instar Larval Brains. [PDF]
Drosophila neural stem cells (neuroblasts, NBs hereafter) undergo asymmetric divisions, regenerating the self-renewing neuroblast, while also forming a differentiating ganglion mother cell (GMC), which will undergo one additional division to give rise to two neurons or glia.
Segura RC, Cabernard C.
europepmc +3 more sources
Larval predation on different instars in blowfly populations [PDF]
During its larval stage, Chrysomya albiceps (Diptera: Calliphoridae) is a facultative predator on other blowflies. In this study, we evaluated the predation by third instar larvae of C.
Lucas Del Bianco Faria +2 more
doaj +5 more sources
Biological and histopathological effects of cyromazine on the laevae of Culex pipiens (Diptera Culicidae). [PDF]
Laboratory studies were carried out to investigate the efficacy of the chitin synthesis inhibitor (cyromazine) against all larval stages of Culex pipiens. The compound was tested its efficacy on larval mortality, larval duration, pupation, pupal duration
Abada A. Assar +3 more
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Background In holometabolous insects, environmental factors experienced in pre-imaginal life stages affect the life-history traits within that stage and can also influence subsequent life stages.
Steve B. S. Baleba
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Lepidopteran Larval Midgut During Prepupal Instar: Digestion or Self-Digestion? [PDF]
Programmed cell death (PCD) is crucial in body restructuring during metamorphosis of holometabolous insects (those that have a pupal stage between the final larval and adult stages). Besides apoptosis, an increasing body of evidence indicates that in several insect species programmed autophagy also plays a key role in these developmental processes.
TETTAMANTI, GIANLUCA +3 more
openaire +4 more sources
We reared Chrysomya albiceps (Wiedemann 1819) unadult stages (first larval instar, second larval instar, third larval instar and pupal stage) under four constant temperatures. Results proved that increasing temperature from 20 to 25, 30 and 35 °C reduced
Layla A.H. Al-Shareef +1 more
doaj +1 more source
Head Capsule Widths as an Indicator of the Larval Instar of Codling Moth (Lepidoptera: Olethreutidae) [PDF]
Head capsule width was a reliable indicator of larval instar in a strain of Michigan codling moths, Cydia pomonella. Head capsules were 0.33, 0.50, 0.82, 1.18 and 1.55 mm in width from first to fifth instar respectively.
Weitzner, Peter, Whalon, Mark E
core +3 more sources
SUPERNUMERARY LARVAL INSTARS IN CYCLORRHAPHOUS DIPTERA
1. The developmental program for metamorphosis is determined in third instar larvae of Calliphora and Sarcophaga very early after ecdysis. The process is activated by feeding and can be delayed for many days by starvation.2. High doses of ecdysterone (20 µg per larva) injected just after ecdysis or in starved larvae cause a precocious molt and the ...
J, Zdárek, K, Sláma
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The last instar larva and pupa of Ora depressa (Coleoptera: Scirtidae), a marsh beetle with underwater pupation [PDF]
In this contribution we describe and illustrate for the first time, detailed morphology and chaetotaxy of the last instar larva and the pupa of Ora depressa (Fabricius, 1801), and provide diagnostic characters and information on its biology.
Archangelsky, Miguel +3 more
core +3 more sources
Determination of the Larval Instar Numbers of the Ectropis grisescens at Different Temperatures [PDF]
Ectropis grisescens is one of the most harmful pests in tea plantations, characterized by its frequent annual occurrences and considerable damage. The understanding of the larval instar number remains still elusive.
TANG Meijun, LI Hong, ZHANG Xinxin, JIANG Hongxin, WANG Zhibo, GUO Huawei, XIAO Qiang
doaj +1 more source

