Results 221 to 230 of about 14,679 (258)

Ultrastructure of the malpighian tubules of Schistocerca gregaria

Journal of Morphology, 1988
AbstractThe ultrastructure of the Malpighian tubules of the adult desert locust, Schistocerca gregaria, is described. Male and female adults possess about 233 tubules, which empty proximally into the midgut‐ileal region of the alimentary canal by way of 12 ampullae. The tubules vary from 10 mm to 23 mm in length.
Margaret A, Garrett, Timothy J, Bradley, Joan E, Meredith, J E, Phillips   +3 more
openaire   +2 more sources

Allatectomy and sexual receptivity in females of Schistocerca gregaria

Journal of Insect Physiology, 1977
Abstract The removal of the corpora allata from immature females of Schistocerca gregaria causes the insects to enter a phase of permanent defence towards courting males. Operated control females copulate often, although they do not appear to show an active form of sexual display or attraction.
L, Strong, F P, Amerasinghe
openaire   +2 more sources

Peptides in the Locusts, Locusta migratoria and Schistocerca gregaria

Peptides, 1997
The first peptide identified in locusts was adipokinetic hormone I (AKH-I), a neurohormone mobilizing lipids from the fat body. No other locusts peptides were isolated until 1985. From then on peptide identification started to boom at such a tremendously fast rate that even specialists in the field could hardly keep track.
L, Schoofs, D, Veelaert, J, Vanden Broeck, A, De Loof   +3 more
openaire   +2 more sources

Schistocerca gregaria Inhabits

2008
Published as part of Usmani, Mohammad Kamil, 2008, Studies on Acridoidea (Orthoptera) with some new records from Fezzan, Libya, pp.
openaire   +1 more source

Cuticular sclerotization in larval and adult locusts, Schistocerca gregaria

Journal of Insect Physiology, 1974
Abstract The sclerotization of both larval and adult cuticle from the desert locust, Schistocerca gregaria , has been studied by measuring the incorporation of radioactive dopamine and N-acetyldopamine into the cuticle. The results are compared with the degree of sclerotization of the cuticle and the amount of sclerotizing enzyme present.
openaire   +2 more sources

Sulfakinins reduce food intake in the desert locust, Schistocerca gregaria

Journal of Insect Physiology, 2000
In vertebrates, the peptides cholecystokinin (CCK), neuropeptide Y, galanin, and bombesin are known to be involved in the control of food intake. We report here that insect sulfakinins, peptides which display substantial sequence similarities with the vertebrate gastrin/CCK peptide family, significantly inhibit food uptake in fifth instar nymphs of the
, Wei, , Baggerman, , J Nachman R, , Goldsworthy, , Verhaert, , De Loof A, , Schoofs   +6 more
openaire   +2 more sources

Transglycosylation in the desert locust, Schistocerca gregaria Forsk.

Journal of Insect Physiology, 1964
Abstract The hydrolysis of maltose, sucrose, methyl α -glucopyranoside, cellobiose, and raffinose by a freeze-dried enzyme preparation of the foregut and midgut contents of the desert locust Schistocerca gregaria is accompanied by transglycosylation.
D.W. Payne, W.A.L. Evans
openaire   +1 more source

The Anatomy of the Tarsi of Schistocerca gregaria Forsk�l

Zeitschrift f�r Zellforschung und Mikroskopische Anatomie, 1970
The tarsus of S. gregaria is divided into three units (here called segments) and an arolium set between a pair of claws. The first segment bears three pairs of pulvilli in the fore and middle legs, and one pair and two single pulvilli in the hind legs. Segment two bears a pair of pulvilli, segment three one long pulvillus and the arolium a similar pad ...
openaire   +2 more sources

Neurobiology of polarization vision in the locustSchistocerca gregaria

Acta Biologica Hungarica, 2004
The polarization pattern of the blue sky serves as an important reference for spatial orientation in insects. To understand the neural mechanisms involved in sky compass orientation we have analyzed the polarization vision system in the locust Schistocerca gregaria.
Homberg, U., Hofer, Sabine, Mappes, Martina, Vitzthum, H., Pfeiffer, K., Gebhardt, S., Müller, Monika, Paech, Agnes   +7 more
openaire   +3 more sources

Amino acid requirements of Schistocerca gregaria (Forskal)

1980
The development of a chemically defined artificial diet for Schistocerca gregaria (Forsk.) is described,. The diet that permitted the best growth of S. gregaria was used to determine the amino acid requirements of this animal. Further studies were performed to determine whether amino acids were required as nutrient per se or as phagostimulants.
openaire   +1 more source