The energy budget of the adult stage of the greater wax moth, Galleria mellonella (L.)

1973 ◽  
Vol 51 (10) ◽  
pp. 1035-1039 ◽  
Author(s):  
Thomas H. Carefoot
Keyword(s):  
Energy Budget ◽  
Galleria Mellonella ◽  
Adult Stage ◽  
Energy Content ◽  
Energy Budgets ◽  
Caloric Content ◽  
Greater Wax Moth ◽  
Wax Moth

Energy budgets calculated for the nonfeeding adult stages of Galleria mellonella show that the animals die with a remaining energy content of 33–35% of the original caloric content of the newly eclosed adult, In the female, eggs account for 17% of the original energy content of the new adult and metabolism for about 50%. In the male, 65% of the original adult energy is accounted for by metabolism and an immeasurably small amount by production of sperm. The averaged energy budgets deviate from the balanced condition by +1% for the females and by 0% for the males, but with considerable variation between individuals (−15 to +24% for 10 females, and −17 to +19% for 10 males).

The energy requirements of metamorphosis of the greater wax moth, Galleria mellonella (L.)

1972 ◽  
Vol 50 (1) ◽  
pp. 67-75 ◽  
Author(s):  
Barbara J. Moon ◽  
Thomas H. Carefoot
Keyword(s):  
Oxygen Consumption ◽  
Energy Budget ◽  
Galleria Mellonella ◽  
Dry Weight ◽  
Instar Larva ◽  
Energy Requirements ◽  
Energy Budgets ◽  
Greater Wax Moth ◽  
Calorific Content ◽  
Wax Moth

Energy budgets calculated for the period of metamorphosis of 16 female Galleria mellonella showed a range in deviation from the balanced condition of−23% to + 22%. The oxygen consumption of Galleria, measured as one component of the energy budget, was 2.9 μl O2/mg per hour for final-instar larvae of 249–275 mg in weight [Formula: see text] and 2.1 μl O2/mg per hour for adults of 67–136 mg in weight [Formula: see text]. The calorific content increased from 6446 cal/g dry weight in the final-instar larva to 6711 cal/g dry weight in the adult. The "rejecta" of metamorphosis, including cocoon (combined with larval faeces, shed adult scales, and adult excreta), pupal case, and larval remnants (shed larval skin), had comparatively low calorific values (4462, 4847, and 4933 cal/dry g, respectively), and constituted only 12% of the total energy accounted for during metamorphosis.

scholarly journals Radiation Disinfestation of Honeybee Combs Infested with Greater Wax Moth Eggs

2020 ◽  
Vol 64 (1) ◽  
pp. 37-46
Author(s):  
Mohammed Mansour
Keyword(s):  
Gamma Irradiation ◽  
Developmental Stages ◽  
Galleria Mellonella ◽  
Adult Stage ◽  
Adult Emergence ◽  
Developmental Rate ◽  
Larval Survival ◽  
Egg Hatch ◽  
Greater Wax Moth ◽  
Wax Moth

AbstractThe sensitivity of different developmental stages of greater wax moth (Galleria mellonella L.) eggs to gamma irradiation was examined. Eggs, 25 to 144 h-old, were exposed at 48 h intervals to gamma radiation dosages (50 to 400 Gy), and the effects on egg hatch, pupation and adult emergence were investigated. The developmental rate of irradiated-egg larvae and pupae to adult stage was also studied. Results showed that the irradiation sensitivity of G. mellonella eggs decreased with increased age of the eggs when irradiated. In 25–48 h-old eggs, 50 Gy dose significantly reduced egg hatch and at 200 Gy dose no egg hatch was observed. Eggs 73–96 h-old were slightly more tolerant to irradiation treatment; hatching completely ceased at 250 Gy dose. Sensitivity to gamma irradiation reached its lowest level however when 121–144 h-old eggs (few h. before egg hatch) were irradiated. 350 Gy dose reduced egg hatch to about 3%, and at 400 Gy no egg hatch was noted. Survival to the adult stage was also negatively affected. At the most radio-tolerant stage (121–144 h-old), 100 Gy dose significantly reduced larval survival to the adult stage and 300 Gy completely prevented it. The development rate of larvae and pupae resulting from irradiated eggs was also negatively affected.

scholarly journals Establishing an invertebrate Galleria mellonella greater wax moth larval model of Neisseria gonorrhoeae infection

Virulence ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 1900-1920
Author(s):  
Aiste Dijokaite ◽  
Maria Victoria Humbert ◽  
Emma Borkowski ◽  
Roberto M La Ragione ◽  
Myron Christodoulides
Keyword(s):  
Neisseria Gonorrhoeae ◽  
Galleria Mellonella ◽  
Greater Wax Moth ◽  
Wax Moth

Transgenic expression of gallerimycin, a novel antifungal insect defensin from the greater wax moth Galleria mellonella, confers resistance to pathogenic fungi in tobacco

2006 ◽  
Vol 387 (5) ◽  
pp. 549-557 ◽  
Author(s):  
Gregor Langen ◽  
Jafargholi Imani ◽  
Boran Altincicek ◽  
Gernot Kieseritzky ◽  
Karl-Heinz Kogel ◽  
...  
Keyword(s):  
Transgenic Tobacco ◽  
Fungal Pathogens ◽  
Galleria Mellonella ◽  
Ectopic Expression ◽  
Pathogenic Fungi ◽  
Transgenic Expression ◽  
Greater Wax Moth ◽  
Insect Defensin ◽  
Wax Moth

Abstract A cDNA encoding gallerimycin, a novel antifungal peptide from the greater wax moth Galleria mellonella, was isolated from a cDNA library of genes expressed during innate immune response in the caterpillars. Upon ectopic expression of gallerimycin in tobacco, using Agrobacterium tumefaciens as a vector, gallerimycin conferred resistance to the fungal pathogens Erysiphe cichoracearum and Sclerotinia minor. Quantification of gallerimycin mRNA in transgenic tobacco by real-time PCR confirmed transgenic expression under control of the inducible mannopine synthase promoter. Leaf sap and intercellular washing fluid from transgenic tobacco inhibited in vitro germination and growth of the fungal pathogens, demonstrating that gallerimycin is secreted into intercellular spaces. The feasibility of the use of gallerimycin to counteract fungal diseases in crop plants is discussed.

Greater wax moth Galleria mellonella (Lepidoptera: Pyralidae) as a resistant model host for Nosema pyrausta (Microsporidia: Nosematidae)

2018 ◽  
Vol 157 ◽  
pp. 1-3 ◽  
Author(s):  
Yuri S. Tokarev ◽  
Ekaterina V. Grizanova ◽  
Anastasia N. Ignatieva ◽  
Ivan M. Dubovskiy
Keyword(s):  
Galleria Mellonella ◽  
Greater Wax Moth ◽  
Lepidoptera Pyralidae ◽  
Wax Moth

scholarly journals Quantitative and Qualitative Impacts of Selected Arthropod Venoms on the Larval Haemogram of the Greater Wax Moth, Galleria mellonella (Linnaeus) (Lepidoptera: Pyralidae)

2021 ◽  
pp. 1-26
Author(s):  
Karem Ghoneim ◽  
Khalid Hamadah ◽  
Mohammad Tanani ◽  
Dyaa Emam
Keyword(s):  
Apis Mellifera ◽  
Galleria Mellonella ◽  
Larval Instar ◽  
Population Count ◽  
Oriental Hornet ◽  
Greater Wax Moth ◽  
The World ◽  
Lepidoptera Pyralidae ◽  
Hemocyte Population ◽  
Wax Moth

The greater wax moth, Galleria mellonella (Linnaeus) (Lepidoptera: Pyralidae) is the most destructive pest of honey bee, Apis mellifera Linnaeus (Hymenoptera: Apidae), throughout the world. The present study was conducted to determine the quantitative and qualitative impairing effects of the arthropod venoms, viz., death stalker scorpion Leiurus quinquestriatus (Hemprich & Ehrenberg) venom (SV), oriental Hornet (wasp) Vespa orientalis Linnaeus venom (WV) and Apitoxin of A. mellifera (AP) on the larval haemogram. For this purpose, the 3rd instar larvae were treated with LC50 of each of these venoms (3428.9, 2412.6, and 956.16 ppm, respectively). The haematological investigation was conducted in haemolymph of the 5th and 7th (last) instar larvae. The important results could be summarized as follows. Five basic types of the freely circulating haemocytes in the haemolymph of last instar (7th) larvae of G. mellonella had been identified: Prohemocytes (PRs), Plasmatocytes (PLs), Granulocytes (GRs), Spherulocytes (SPs) and Oenocytoids (OEs). All venoms unexceptionally prohibited the larvae to produce normal hemocyte population (count). No certain trend of disturbance in the differential hemocyte counts of circulating hemocytes in larvae of G. mellonella after treatment with the arthropod venoms. Increasing or decreasing population of the circulating hemocytes seemed to depend on the potency of the venom, hemocyte type and the larval instar.  In PRs of last instar larvae, some cytopathological features had been observed after treatment with AP or WV, but SV failed to cause cytopathological features. With regard to PLs, some cytopathological features had been observed after treatment with AP while both SV and WV failed to cause cytopathological features in this hemocyte type. No venom exhibited cytopathological effects on GRs, SPs or OEs.

Sign in / Sign up

Export Citation Format

Share Document