Cyfluthrin and Deltamethrin Induce Changes in the Fat Body Composition of Tenebrio molitor Larvae, Males and Females

2019 ◽  
Vol 16 (5) ◽  
pp. e1800515 ◽  
Author(s):  
Marta Wojciechowska ◽  
Piotr Stepnowski ◽  
Marek Gołębiowski
Keyword(s):  
Body Composition ◽  
Fat Body ◽  
Tenebrio Molitor ◽  
Males And Females ◽  
Tenebrio Molitor Larvae

scholarly journals Solanum nigrum Fruit Extract Increases Toxicity of Fenitrothion—A Synthetic Insecticide, in the Mealworm Beetle Tenebrio molitor Larvae

Toxins ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 612
Author(s):  
Marta Spochacz ◽  
Monika Szymczak ◽  
Szymon Chowański ◽  
Sabino Aurelio Bufo ◽  
Zbigniew Adamski
Keyword(s):  
Fat Body ◽  
Crop Protection ◽  
Tenebrio Molitor ◽  
Solanum Nigrum ◽  
Cellular Membranes ◽  
Unripe Fruit ◽  
Fruit Extract ◽  
Mealworm Beetle ◽  
Pre Treatment ◽  
Tenebrio Molitor Larvae

Synthetic insecticides are widely used for crop protection both in the fields and in the food stored facilities. Due to their toxicity, and assumptions of Integrated Pest Management, we conducted two independent experiments, where we studied the influence of Solanum nigrum unripe fruit extract on the toxicity of an organophosphorus insecticide fenitrothion. In the first variant of the experiment, Tenebrio molitor larvae were fed with blended fenitrothion (LC50) and the extract in four concentrations (0.01, 0.1, 1 and 10%) in ratio 1:1 for 3 days. In the second variant, a two-day application of fenitrothion (LC40) was preceded by a one-day extract treatment. The first variant did not show any increase in lethality compared to fenitrothion; however, ultrastructure observations exhibited swollen endoplasmic reticulum (ER) membranes in the midgut and nuclear and cellular membranes in the fat body, after application of blended fenitrothion and extract. An increased amount of heterochromatin in the fat body was observed, too. In the second variant, pre-treatment of the extract increased the lethality of larvae, decreased the level of glycogen and lipids in the fat body and disrupted integrity of midgut cellular membranes. S. nigrum extract, applied prior to fenitrothion treatment can be a factor increasing fenitrothion toxicity in T. molitor larvae. Thus, this strategy may lead to decreased emission of synthetic insecticides to the environment.

Sulfakinin Signalling Influences Fatty Acid Levels and Composition in Tenebrio Molitor Beetle

2019 ◽  
Vol 26 (12) ◽  
pp. 949-958 ◽  
Author(s):  
Małgorzata Slocinska ◽  
Mariola Kuczer ◽  
Marek Gołębiowski
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Organic Compounds ◽  
Fat Body ◽  
Tenebrio Molitor ◽  
Lipid Homeostasis ◽  
Gas Chromatography Mass Spectrometry ◽  
Activity Inhibition ◽  
Myotropic Activity ◽  
Tenebrio Molitor Larvae

Background: Sulfakinins are arthropod neuropeptides that are structurally and functionally similar to vertebrate gastrin-cholecystokinin. Sulfakinins with sulfated tyrosine (sSK) or nonsulfated tyrosine (nSK) in the C-terminated heptapeptide XY(SO3H)GHMRFamide display different biological functions, including myotropic activity, inhibition of food intake, stimulation of digestive enzymes and regulation of carbohydrate and lipid content. Objective: To reveal the mechanisms by which sulfakinin signalling modulates lipid homeostasis, we analysed the changes in the level and composition of fatty acids and organic compounds in the fat body and haemolymph of Tenebrio molitor larvae after nSK and sSK treatment. Methods: Fatty acids in fat body and haemolymph of insects were analysed using Gas Chromatography - Mass Spectrometry (GC–MS). Results: The direction of the changes observed for major fatty acids, 18:1 and 18:2, and the less abundant fatty acids, 16:0, 18:0, 16:1 and 14:0, was the same for unsaturated (UFAs) and saturated (SFAs) fatty acids, and elevated after nSK application in both analysed tissues. However, the action of sSK in fat body tissue evoked distinct effects and induced either significant decreases in individual fatty acids or UFAs and SFAs. Administration of nSK and sSK significantly increased the level of total organic compounds in the haemolymph, contrary to the effect of sSK in fat body, where the level of total organic compounds decreased, although changes differ between individual chemicals. Conclusion: Sulfakinins are engaged in the precise modulation of fatty acid levels and composition, but their action depends on the presence of sulfate group on the tyrosyl residue of the peptide what determines the different roles of these peptides in insect physiology.

scholarly journals Fatty acid profile of lipids and caeca volatile fatty acid production of broilers fed a full fat meal from Tenebrio molitor larvae

2018 ◽  
Vol 18 (1) ◽  
pp. 168-173 ◽  
Author(s):  
Rosa Loponte ◽  
Fulvia Bovera ◽  
Giovanni Piccolo ◽  
Laura Gasco ◽  
Giulia Secci ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Acid Production ◽  
Volatile Fatty Acid ◽  
Tenebrio Molitor ◽  
Fatty Acid Production ◽  
Fat Meal ◽  
Tenebrio Molitor Larvae

scholarly journals Graded Incorporation of Defatted Yellow Mealworm (Tenebrio molitor) in Rainbow Trout (Oncorhynchus mykiss) Diet Improves Growth Performance and Nutrient Retention

Animals ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 187 ◽  
Author(s):  
Paulo Rema ◽  
Subramanian Saravanan ◽  
Benjamin Armenjon ◽  
Constant Motte ◽  
Jorge Dias
Keyword(s):  
Body Composition ◽  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Growth Performance ◽  
Tenebrio Molitor ◽  
Nutrient Digestibility ◽  
Protein Meal ◽  
Yellow Mealworm ◽  
Juvenile Rainbow Trout ◽  
Rainbow Trout Oncorhynchus Mykiss

Insects are emerging as a sustainable alternative to fishmeal and fish oil in aquafeeds. This study assessed the effect of graded incorporation levels of defatted yellow mealworm (Tenebrio molitor) protein meal on juvenile rainbow trout (Oncorhynchus mykiss) growth performance, body composition, and apparent nutrient digestibility. The trial comprised five dietary treatments: control diet with 25% fishmeal, and four experimental diets with yellow mealworm protein meal at 5%, 7.5%, 15%, or 25%, which corresponded to a fishmeal replacement of 20%, 30%, 60%, or 100%, respectively. After 90 days, the graded incorporation of insect protein meal led to a significant stepwise increase in final body weight, and a significant improvement of specific growth rate, feed conversion ratio, and protein efficiency ratio compared to the control treatment. Regardless of the incorporation level, the insect protein meal had no effects on fish whole-body composition and apparent digestibility coefficients of dry matter, protein, fat, phosphorus, and energy. Protein, phosphorus, and energy retention significantly increased in fish fed the diets with an insect protein meal. In conclusion, the yellow mealworm protein meal could effectively replace 100% of fishmeal in the diet of juvenile rainbow trout with positive effects on its overall zootechnical performance.

Effect of Tenebrio molitor larvae meal on the antioxidant status and stress response pathways in tissues of growing pigs

2021 ◽  
pp. 1-14
Author(s):  
Robert Ringseis ◽  
Lukas Peter ◽  
Denise K. Gessner ◽  
Sandra Meyer ◽  
Erika Most ◽  
...  
Keyword(s):  
Stress Response ◽  
Antioxidant Status ◽  
Tenebrio Molitor ◽  
Growing Pigs ◽  
Tenebrio Molitor Larvae

Compensation for Temperature in the Digestive Metabolism of Tenebrio molitor Larvae

1964 ◽  
Vol 37 (1) ◽  
pp. 90-95 ◽  
Author(s):  
Shalom W. Applebaum ◽  
Miroslava Janković ◽  
Jelena Grozdanović ◽  
Dragoslav Marinković
Keyword(s):  
Tenebrio Molitor ◽  
Tenebrio Molitor Larvae

scholarly journals Correction: Involvement of phenoloxidase in browning during grinding of Tenebrio molitor larvae

PLoS ONE ◽  
2018 ◽  
Vol 13 (1) ◽  
pp. e0192015
Author(s):  
Renske H. Janssen ◽  
Catriona M. M. Lakemond ◽  
Vincenzo Fogliano ◽  
Giovanni Renzone ◽  
Andrea Scaloni ◽  
...  
Keyword(s):  
Tenebrio Molitor ◽  
Tenebrio Molitor Larvae

Feeding of cuticles from Tenebrio molitor larvae modulates the gut microbiota and attenuates hepatic steatosis in obese Zucker rats

2022 ◽  
Author(s):  
Armaghan Saeb ◽  
Sarah Maria Grundmann ◽  
Denise K Gessner ◽  
Sven Schuchardt ◽  
Erika Most ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Hepatic Steatosis ◽  
Mass Rearing ◽  
Tenebrio Molitor ◽  
Zucker Rats ◽  
Insect Larvae ◽  
Food And Feed ◽  
Obese Zucker Rats ◽  
Tenebrio Molitor Larvae

an alternative and sustainable source of food and feed. A byproduct from mass-rearing of insect larvae are the shed cuticles - the most external components of insects which are a...

Sign in / Sign up

Export Citation Format

Share Document