geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Acrosome formation in the house cricket


, : Acrosome formation in the house cricket. Journal of Cell Biology 12: 411-431

Acrosome formation during spermatogenesis in the house cricket was studied with the electron microscope. In the early spermatid there is a single Golgi body, called the acroblast, which is cup-shaped, the walls being composed of a number of parallel membranes. A pro-acrosomal granule then appears within the acroblast. Next, the granule migrates to the nucleus, where it becomes attached. The acroblast then migrates away from the attached granule and is eventually sloughed off. In the first stage of acrosome differentiation the granule assumes the shape of a blunt cone and its base invaginates deeply so that it becomes hollowed. Within the space created by the invagination a new structure forms which, from the first, has the shape of a hollow cone. The two cones constitute the mature acrosome. Both have a biconvex cross-section.

US$19.90

PMID: 14454677

DOI: 10.2307/1603857


Other references

Li, G.Q.; Fu, Y.X.; Bian, W.X., 1997: Comparison on treatment of falciparum malaria with different courses of artesunate tablet. To assess the efficacy of Artesunate on falciparum malaria. A randomized controlled study on the treatment of 90 uncomplicated falciparum malaria patients was carried out with 400 mg of artesunate tablet as a total dose over 3 days, 600 mg over 5...

Lesser, E.J., 1926: Influence of homologous alcohols on sugar formation by the frog liver. An isolated frog liver perfused with either 0.7% NaCl or an alkaline Barkan, Broemser and Hahn solution steadily gives up glucose to the perf usion fluid. Adding propyl alcohol to the perfusion fluid increases glucose output 2-6 times, this effect...

Wang, H-Tsung.; Timofeev, I.V.; Chang, K.; Zyryanov, V.Ya.; Lee, W., 2014: Tunable narrow-bandpass filter based on an asymmetric photonic bandgap structure with a dual-mode liquid crystal. A one-dimensional asymmetric photonic crystal with dual-frequency liquid crystal as a central defect layer was demonstrated. Such asymmetric structure was characterized by the dramatic increase in intensity of the electric field of light localized...

Tiong, J.D.R.; Gosney, E.; Ding, J.; Chin, E.; Kopchick, J.J., 2006: A liver specific gene that is expressed in growth hormone transgenic mice and in normal female mice as a function of age. Growth hormone (GH) acts on various organs to exert its growth and metabolic effects. GH induces transcription of a number of genes in different organs including liver. By performing subtractive hybridization analysis on liver cDNAs of GH transgen...

Anonymous, 1985: Internationl Youth Year and rural youth work. The IYY (International Youth Year) draws attention to the need to place a higher priority on rural youth work, with an emphasis on leadership development and the learning of employable skills for application in agricultural and rural development....

Anjaneyulu K.; Anjaneyulu R.; Sener A.; Malaisse W.J., 1982: Stimulus secretion coupling of glucose induced insulin release thiol di sulfide balance in pancreatic islets. An increase in the production rate of reduced pyridine nucleotides is currently considered as a coupling factor between metabolic and distal events in the process of glucose-stimulated insulin release. The possible participation in such a coupling...

Buianova, N.I.; Shchipkov, V.P.; Krivskaia, K.S.; Pekhov, A.P., 1990: Genetic organization of transfer region of F-like plasmid pAP18-1. The results of complementation analysis of nitrosoguanidine-induced mutants of F-like drd-plasmid pAP18-1 (Tc, ColV) testified to the existence of at least 3 tra regions (tra1, tra2, tra3) and regulating locus fin V in the genome of this plasmid....

Hawkes, A.P.; Kronenberger, C.B.; MacKenzie, T.D.; Mardis, A.L.; Palen, T.E.; Schulter, W.W.; Shah, S.A.; Steele, A.W.; Marine, W.M., 1996: Cervical cancer screening: American College of Preventive Medicine practice policy statement. American Journal of Preventive Medicine 12(5): 342-344

Gao, S.; Oh, Y-Bin.; Shah, A.; Park, W.Hyun.; Chung, M.Ja.; Lee, Y-Ho.; Kim, S.Hee., 2011: Urotensin II receptor antagonist attenuates monocrotaline-induced cardiac hypertrophy in rats. Urotensin II (UII) is a vasoactive peptide with potent cardiovascular effects through a G protein-coupled receptor. Hypoxia stimulates the secretion of UII and atrial natriuretic peptide (ANP). However, the effect of UII on hypoxia-induced cardiac...

Cragg, E.D., 1978: Distortion of the alginate impression. Canadian Forces Dental Services Quarterly 19(2): 10-11