Mechanism of Southward Migration of a Noctuid Moth [Agrotis Ipsilon (Hufnagel)]: A Complete Migrant

Ecology ◽  
1993 ◽  
Vol 74 (8) ◽  
pp. 2303-2314 ◽  
Author(s):  
William B. Showers ◽  
Armon J. Keaster ◽  
Jimmy R. Raulston ◽  
William H. Hendrix ◽  
M. Ellison Derrick ◽  
...  
Keyword(s):  
Agrotis Ipsilon ◽  
Noctuid Moth ◽  
Southward Migration

scholarly journals Firing and intrinsic properties of antennal lobe neurons in the Noctuid moth Agrotis ipsilon

Biosystems ◽  
2015 ◽  
Vol 136 ◽  
pp. 46-58 ◽  
Author(s):  
Céline Lavialle-Defaix ◽  
Vincent Jacob ◽  
Christelle Monsempès ◽  
Sylvia Anton ◽  
Jean-Pierre Rospars ◽  
...  
Keyword(s):  
Antennal Lobe ◽  
Agrotis Ipsilon ◽  
Intrinsic Properties ◽  
Noctuid Moth

scholarly journals Transformation of the Sex Pheromone Signal in the Noctuid Moth Agrotis ipsilon: From Peripheral Input to Antennal Lobe Output

2010 ◽  
Vol 35 (8) ◽  
pp. 705-715 ◽  
Author(s):  
D. Jarriault ◽  
C. Gadenne ◽  
P. Lucas ◽  
J.-P. Rospars ◽  
S. Anton
Keyword(s):  
Sex Pheromone ◽  
Antennal Lobe ◽  
Agrotis Ipsilon ◽  
Noctuid Moth

The brain structure and neurosecretory cells of noctuid moth Anadevidia peponis: Noctuidae

1990 ◽  
Vol 48 (3) ◽  
pp. 436-437
Author(s):  
M. Sato ◽  
Y. Ogawa ◽  
M. Sasaki ◽  
T. Matsuo
Keyword(s):  
Biological Clock ◽  
Virgin Female ◽  
Basic Structure ◽  
Fixed Time ◽  
Neurosecretory Cells ◽  
Nerve Cells ◽  
Noctuid Moth ◽  
The Right ◽  
20 Nm ◽  
The Brain

A virgin female of the noctuid moth, a kind of noctuidae that eats cucumis, etc. performs calling at a fixed time of each day, depending on the length of a day. The photoreceptors that induce this calling are located around the neurosecretory cells (NSC) in the central portion of the protocerebrum. Besides, it is considered that the female’s biological clock is located also in the cerebral lobe. In order to elucidate the calling and the function of the biological clock, it is necessary to clarify the basic structure of the brain. The observation results of 12 or 30 day-old noctuid moths showed that their brains are basically composed of an outer and an inner portion-neural lamella (about 2.5 μm) of collagen fibril and perineurium cells. Furthermore, nerve cells surround the cerebral lobes, in which NSCs, mushroom bodies, and central nerve cells, etc. are observed. The NSCs are large-sized (20 to 30 μm dia.) cells, which are located in the pons intercerebralis of the head section and at the rear of the mushroom body (two each on the right and left). Furthermore, the cells were classified into two types: one having many free ribosoms 15 to 20 nm in dia. and the other having granules 150 to 350 nm in dia. (Fig. 1).

The early development of antenna and antennal sensilla in the noctuid moth, Agrotis segetum (Insecta: Lepidoptera)

1990 ◽  
Vol 48 (3) ◽  
pp. 502-503
Author(s):  
Eric Hallberg ◽  
Lina Hansén
Keyword(s):  
Cell Death ◽  
Stem Cell ◽  
Early Development ◽  
Larval Stage ◽  
Pupal Stage ◽  
Agrotis Segetum ◽  
Antennal Sensilla ◽  
Noctuid Moth ◽  
Standard Procedures

The antennal rudiments in lepidopterous insects are present as disks during the larval stage. The tubular double-walled antennal disk is present beneath the larval antenna, and its inner layer gives rise to the adult antenna during the pupal stage. The sensilla develop from a cluster of cells that are derived from one stem cell, which gives rise to both sensory and enveloping cells. During the morphogenesis of the sensillum these cells undergo major transformations, including cell death. In the moth Agrotis segetum the pupal stage lasts about 14 days (temperature, 25°C). The antennae, clearly seen from the exterior, were dissected and fixed according to standard procedures (3 % glutaraldehyde in 0.15 M cacaodylate buffer, followed by 1 % osmiumtetroxide in the same buffer). Pupae from day 1 to day 8, of both sexes were studied.

scholarly journals Sublethal Exposure Effects of the Neonicotinoid Clothianidin Strongly Modify the Brain Transcriptome and Proteome in the Male Moth Agrotis ipsilon

Insects ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 152
Author(s):  
Camille Meslin ◽  
Françoise Bozzolan ◽  
Virginie Braman ◽  
Solenne Chardonnet ◽  
Cédric Pionneau ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Molecular Mechanisms ◽  
Insect Pest ◽  
Agrotis Ipsilon ◽  
Positive Effects ◽  
Male Moth ◽  
Hormetic Effect ◽  
Pest Insects ◽  
Neuronal Processes ◽  
The Brain

Insect pest management relies mainly on neurotoxic insecticides, including neonicotinoids such as clothianidin. The residual accumulation of low concentrations of these insecticides can have positive effects on target pest insects by enhancing various life traits. Because pest insects often rely on sex pheromones for reproduction and olfactory synaptic transmission is cholinergic, neonicotinoid residues could indeed modify chemical communication. We recently showed that treatments with low doses of clothianidin could induce hormetic effects on behavioral and neuronal sex pheromone responses in the male moth, Agrotis ipsilon. In this study, we used high-throughput RNAseq and proteomic analyses from brains of A. ipsilon males that were intoxicated with a low dose of clothianidin to investigate the molecular mechanisms leading to the observed hormetic effect. Our results showed that clothianidin induced significant changes in transcript levels and protein quantity in the brain of treated moths: 1229 genes and 49 proteins were differentially expressed upon clothianidin exposure. In particular, our analyses highlighted a regulation in numerous enzymes as a possible detoxification response to the insecticide and also numerous changes in neuronal processes, which could act as a form of acclimatization to the insecticide-contaminated environment, both leading to enhanced neuronal and behavioral responses to sex pheromone.

scholarly journals Revisiting the Labial Pit Organ Pathway in the Noctuid Moth, Helicoverpa armigera

2020 ◽  
Vol 11 ◽  
Author(s):  
Pramod KC ◽  
Xi Chu ◽  
Pål Kvello ◽  
Xin-Cheng Zhao ◽  
Gui-Rong Wang ◽  
...  
Keyword(s):  
Helicoverpa Armigera ◽  
Noctuid Moth ◽  
Pit Organ ◽  
Helicoverpa Armígera

scholarly journals Southward migration of continental volcanic activity in the Sierra de Las Cruces, Mexico: palaeomagnetic and radiometric evidence

2000 ◽  
Vol 318 (1-4) ◽  
pp. 201-215 ◽  
Author(s):  
Marı́a Luisa Osete ◽  
Vicente-Carlos Ruiz-Martı́nez ◽  
Cecilia Caballero ◽  
Carmen Galindo ◽  
Jaime Urrutia-Fucugauchi ◽  
...  
Keyword(s):  
Volcanic Activity ◽  
Southward Migration

Eicosanoids mediate microaggregation and nodulation responses to bacterial infections in black cutworms, Agrotis ipsilon, and true armyworms, Pseudaletia unipuncta

1997 ◽  
Vol 43 (2) ◽  
pp. 125-133 ◽  
Author(s):  
Russell A Jurenka ◽  
Jon S Miller ◽  
Venkat K Pedibhotla ◽  
Rico L Rana ◽  
David Stanley-Samuelson
Keyword(s):  
Bacterial Infections ◽  
Agrotis Ipsilon ◽  
Pseudaletia Unipuncta
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