Co-localization of the adipokinetic hormones I and II in the same glandular cells and in the same secretory granules of corpus cardiacum of Locusta migratoria and Schistocerca gregaria

1987 ◽  
Vol 249 (2) ◽  
Author(s):  
J.H.B. Diederen ◽  
H.A. Maas ◽  
H.J. Pel ◽  
H. Schooneveld ◽  
W.F. Jansen ◽  
...  
Keyword(s):  
Schistocerca Gregaria ◽  
Secretory Granules ◽  
Locusta Migratoria ◽  
Corpus Cardiacum ◽  
Glandular Cells

ULTRASTRUCTURAL STUDIES ON FORMAMIDINE-INDUCED RELEASE OF NEUROSECRETION IN LOCUSTA MIGRATORIA (ORTHOPTERA: LOCUSTIDAE)

1983 ◽  
Vol 115 (9) ◽  
pp. 1147-1153 ◽  
Author(s):  
Gur Jai Pal Singh ◽  
John F. Barker
Keyword(s):  
Plasma Membrane ◽  
Locusta Migratoria ◽  
Glandular Cell ◽  
Neurosecretory Material ◽  
Hormone Release ◽  
Corpus Cardiacum ◽  
Ultrastructural Studies ◽  
Glandular Cells

AbstractThe action of a formamidine pesticide on the ultrastructure of hormone release from the glandular lobe of the corpus cardiacum (CC) of the locust, Locusta migratoria (L.), has been studied. Treatment of the isolated CC with 5 μM desmethylchlordimeform (DCDM) caused depletion of neurosecretory material from the intrinsic cells of the glandular lobe without affecting the nervus corpus cardiacum II axons. Pretreatment of isolated CC with the α-aminergic antagonist (5 μM) phentolamine blocked DCDM-induced release of neurosecretory material from the glandular cells. DCDM-induced release of neurosecretion from the glandular cell axons occurred via exocytosis. DCDM treatment also affected the distribution of mitochondria. Mitochondria from adjacent cells lined up along the plasma membrane, forming pairs in juxtaposition.

scholarly journals INDUCTION OF ENDOMETRIAL PEROXIDASE SYNTHESIS AND SECRETION BY ESTROGEN AND ESTROGEN ANTAGONIST

1974 ◽  
Vol 62 (2) ◽  
pp. 449-459 ◽  
Author(s):  
Andrew Churg ◽  
Winston A. Anderson
Keyword(s):  
Endoplasmic Reticulum ◽  
Golgi Apparatus ◽  
Peroxidase Activity ◽  
Secretory Granules ◽  
Combined Treatment ◽  
Initial Injection ◽  
Immature Rats ◽  
Glandular Cells ◽  
Endogenous Peroxidase ◽  
Estrogen Antagonist

Synthesis of peroxidase was induced in the uterine epithelium of immature rats by multiple doses over a 24–96-h period of either 17 ß-estradiol, the estrogen-antagonist Parke-Davis CI-628, or a combination of estradiol plus antagonist. Endogenous peroxidase activity first appeared in the cisternae of the rough endoplasmic reticulum of surface epithelial and glandular cells within 24–48 after the initial injection. Uterine peroxidase activity was also visible in the cisternae of the Golgi apparatus, in Golgi-derived secretory granules, and within the uterine and glandular lumen. Some cells of the epithelium produced little or no peroxidase, even after 96 h. Whereas the antagonist appeared to induce synthesis and secretion of peroxidase, neither the antagonist alone nor the combined treatment (estradiol plus antagonist) reproduced the estradiol-mediated growth in organ size and increased lumen diameter.

The Control of Changes in Peripheral Sensilla Associated with Feeding in Locusta Migratoria (L.)

1972 ◽  
Vol 57 (3) ◽  
pp. 755-763
Author(s):  
E. A. BERNAYS ◽  
R. F. CHAPMAN
Keyword(s):  
Normal Level ◽  
Electrical Resistance ◽  
Locusta Migratoria ◽  
Corpus Cardiacum ◽  
Corpora Cardiaca ◽  
Diuretic Hormone ◽  
Stretch Receptors ◽  
The Brain ◽  
Maxillary Palps ◽  
Stimulation Of

1. The electrical resistance across the tips of the maxillary palps is not affected by stimulation of the palps, but increases to the normal level found after feeding as a result of distension of the foregut with agar or injection of corpus cardiacum homogenates into the haemolymph. 2. No increase in resistance occurs if the posterior pharyngeal nerves or the frontal connectives are cut. 3. It is inferred that distension of the foregut stimulates stretch receptors which, acting via the posterior pharyngeal nerves, the frontal connectives and the brain, cause the release of hormone from the storage lobes of the corpora cardiaca. This hormone acts on the terminal sensilla of the palps, causing them to close and so increasing the resistance across the palps. 4. Release of the diuretic hormone is controlled via the same pathway.

THE POTENTIAL OF BACTERIA FOR THE MICROBIAL CONTROL OF GRASSHOPPERS AND LOCUSTS

1997 ◽  
Vol 129 (S171) ◽  
pp. 147-156 ◽  
Author(s):  
B. Zelazny ◽  
M.S. Goettel ◽  
B. Keller
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Bacillus Thuringiensis ◽  
Serratia Marcescens ◽  
Schistocerca Gregaria ◽  
Locusta Migratoria ◽  
Microbial Control ◽  
Control Agent ◽  
Promising Agent ◽  
Laboratory Populations ◽  
The Many

AbstractBacteria have been implicated in disease epizootics observed in field populations and laboratory-reared locusts and grasshoppers. Two species [Serratia marcescens Bizio and Pseudomonas aeruginosa (Schroeter) Migula] consistently infect locusts when ingested with food and can spread in laboratory populations. However, research on developing these organisms for microbial control of locusts and grasshoppers begun in the 1950s has not been continued. In recent years strains of Bacillus thuringiensis Berliner have been studied for activity against locusts and grasshoppers. Results of additional trials by the authors are reported. Among 393 B. thuringiensis isolates and 93 preparations of other sporeforming bacteria fed to nymphs of Locusta migratoria (L.) and/or Schistocerca gregaria Forsk., none has shown any pathogenicity to the insects. The recent discovery of novel B. thuringiensis strains active against various diverse pests and the many properties of a sporeforming bacterium that satisfy the requirements for a microbial control agent, and the development of Serratia entomophila as a promising agent for control of grass grubs, provide incentive to continue the search for an orthopteran-active sporeforming bacterium and to re-investigate the potential of non-sporeforming bacterial pathogens as microbial control agents of grasshoppers and locusts.

scholarly journals Screening and potent applicability analysis of commonly used pesticides against desert locust: an integrative entomo-informatics approach

2020 ◽  
Author(s):  
Anik Banik ◽  
Md. Fuad Mondal ◽  
Md. Mostafigur Rahman Khan ◽  
Sheikh Rashel Ahmed ◽  
Md. Mehedi Hasan
Keyword(s):  
Binding Affinity ◽  
Large Scale ◽  
Schistocerca Gregaria ◽  
Indian Subcontinent ◽  
Locusta Migratoria ◽  
Field Trials ◽  
The Other ◽  
List Type ◽  
Agricultural Pesticides ◽  
Global Threat

AbstractThe locust problem is a global threat for food security. Locusts can fly and migrate overseas within a zip and creating a large-scale devastation to the diversified agro-ecosystem. GIS based analysis showed the recent movement of locusts, among them Schistocerca gregaria and Locusta migratoria are predominant in Indian subcontinent and are found more notorious and devastating one. This devastation needs to be stopped to save human race from food deprivation. In our study, we screened some commonly used agricultural pesticides and strongly recommended three of them viz. biphenthrin, diafenthiuron and silafluofen which might be potential to control the desert locusts based on their binding affinity towards the locust’s survival proteins. Our phylogenetic analysis reveals that these three recommended pesticides might also show potency to the other locust species as well as they are also way safer than the other commercially available pesticides. These proposed pesticide’s bioactive analogs from fungus and bacteria may also show efficacy as next generation controlling measures of locust as well as different kind of pests. These recommended pesticides are expected to be highly effective against locusts and needs to bring forward by the entomologists’ by performing experimental field trials.HighlightsGIS map unmasked the 2020 migratory pattern of locusts which now predominant towards Indian subcontinent.Biphenthrin, diafenthiuron and silafluofen showed maximum binding affinity.Biphenthrin and diafenthiuron were relatively safer than silafluofen.Bioactive analogs from fungus and bacteria could be an alternative to control locusts.Pesticides inhibition hotspots for desert locusts were unrevealed.

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