EurekaMag.com logo
+ Site Statistics
References:
48,253,228
Abstracts:
22,798,842
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

The effects of kochia, wheat and oats on digestive proteinases and the protein economy of adult grasshoppers, Melanoplus sanguinipes


, : The effects of kochia, wheat and oats on digestive proteinases and the protein economy of adult grasshoppers, Melanoplus sanguinipes. Journal of insect physiology7(6): 417-430

Adult male grasshoppers (Melanoplus sanguinipes), fed diets of wheat, oats or kochia ad libitum varied in the amount of food consumed wheat > oats > kochia which paralleled weight gains but not the amount of frass produced. Approximate digestibility was significantly lower, and the efficiency of conversion of assimilated food was significantly higher on kochia than either of the cereals. Assays of proteolytic digestive enzymes on the three diets revealed that adults produced substantially more trypsin and chymotrypsin on oats and kochia than on wheat. Production of greater amounts of these enzymes occurred within seven days after introduction to oats or kochia. Electropherograms of haemolymph from grasshoppers fed oats or kochia had much less stainable protein compared to those fed wheat. All putative bands of vitellogenin from either haemolymph or fat body were substantially reduced on diets of oats or kochia. In the male reproductive system, the major accessory gland protein, long hyaline gland protein, was significantly reduced in kochia-fed grasshoppers. Leaves of wheat had significantly more precipitable protein than oats, and oats had significantly more precipitable protein than kochia. Measurable protein in the three diets may not completely account for the disparities in vitellogenins and other haemolymph proteins. It is suggested that the overproduction of digestive proteolytic enzymes may have been a contributory factor in protein attrition, resulting in slower growth and reduced reproduction. These observations explain in part the consequences of these diets to the biotic potential of grasshoppers.

Order PDF Full Text

Close
Close

Click here to order any other PDF Full Text


Accession: 002249262

DOI: 10.1016/0022-1910(91)90051-z

PDF Full Text: The effects of kochia, wheat and oats on digestive proteinases and the protein economy of adult grasshoppers, Melanoplus sanguinipes


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Other references

Yang, H.; Chen, S-di.; Lu, G-qiang.; Li, B.; Liang, L.; Xu, J-yi., 2005: Proteasomal inhibitor lactacystin induces cell apoptosis and caspase 3 activation in PC12 cells. To explore whether proteasome dysfunction cam induce dopaminergic cell apoptosis and investigate the probable molecular mechanism. MTT assay was applied to measure the cell vitality of rat pheochrom-ocytoma cells of the Line PC12 exposed to highly...

Traczyk, Z.; Rudowski, W.; Arczyńska, E.; Roszkowski, K.; Klawe, Z.; Rowiński, J., 1975: Role of human spleen in the release and sequestration of white blood cells. In 21 patients during operation blood samples were obtained from splenic vein and artery immediately before splenectomy for determination of qualitative and quantitative composition of white blood cells to establish the role of the spleen in their...

van Vliet, E.; Dijkema, G.H.; Schuit, E.; Heida, K.Y.; Roos, C.; van der Post, J.; Parry, E.C.; McCowan, L.; Lyell, D.J.; El-Sayed, Y.Y.; Carr, D.B.; Clark, A.L.; Mahdy, Z.A.; Uma, M.; Sayin, N.C.; Varol, G.F.; Mol, B.W.; Oudijk, M.A., 2016: Nifedipine maintenance tocolysis and perinatal outcome: an individual participant data meta-analysis. Preterm birth is the leading cause of neonatal mortality and morbidity in developed countries. Whether continued tocolysis after 48 hours of rescue tocolysis improves neonatal outcome is unproven. To evaluate the effectiveness of maintenance toco...

Tan-Xin; Yang-Hong; Qiao-Dingjun; Ma-Xinrong, 2008: Construction of siRNA plant expression vector interfered with GA 20-oxidase and production of dwarf tobacco. According to GA 20-oxidase gene sequence of tobacco (Nicotiana tabacum), two pairs of specific primers containing special restriction enzyme sites were designed. The target fragments forward and reverse,were amplified and inserted into both sides...

Lipley, N., 1998: Older patients suffer due to nurse shortages. NlmCategory="UNASSIGNED">NURSE SHORTAGES have been highlighted as one of the key causes of older patients receiving poor quality care in hospital.

Harrison, J.R.; Moody, C.J., 2003: The Horner-Wadsworth-Emmons reaction in the synthesis of macrocyclic peptides: The Trp-His-Gly-Arg derived macrocycle of moroidin. The Trp-His-Gly-Arg derived macrocycle 4 of moroidin 1 containing the unusual tryptophan C-2 histidine N-1 link has been synthesised in protected form. The key steps are displacement of a 2-chloroindole with a histidine derived nucleophile, a Horn...

Puchalski, M.A.; Rogers, C.M.; Baumgardner, R.; Mishoe, K.P.; Price, G.; Smith, M.J.; Watkins, N.; Lehmann, C.M., 2015: A statistical comparison of active and passive ammonia measurements collected at Clean Air Status and Trends Network (CASTNET) sites. Atmospheric concentrations of ammonia (NH3) are not well characterized in the United States due to the sparse number of monitors, the relatively short lifetime of NH3 in the atmosphere, and the difficulty in measuring non-point source emissions su...

Andrade, J.G.; Macle, L., 2014: Improving ablation strategies for the treatment of atrial fibrillation. Atrial fibrillation (AF) is the most common sustained arrhythmia encountered in clinical practice. The contemporary management of AF is centered on symptomatic improvement, as well as reduction in the AF associated morbidity and mortality. For man...

Anonymous, 1987: The cotton variety Brinceni. Brinceni, derived by individual selection from Cirpan 433, has a growth period of 108-110 days and is 8-12 days earlier than Cirpan 433. Resistance to Xanthomonas campestris pv. malvacearum is good. Average yields over 3 years at Brinceni were 234...

Bonilla, S.; Laporta, M.; Delás, J., 1983: Chylothorax secondary to chronic lymphatic leukemia. Medicina Clinica 80(4): 187-187