Publications

neural mechanisms underlying behavior in the locust schistocerca gregaria. i. physiology of identified motorneurons in the metathoracic ganglion.		2016	4703780
identification and characterization of two "sensory neuron membrane proteins" (snmps) of the desert locust, schistocerca gregaria (orthoptera: acrididae).	pheromone-responsive neurons of insects not only require specific receptors but in addition several auxiliary components, including the "sensory neuron membrane protein," snmp. accordingly, snmp is considered as a marker for neurons responding to pheromones. for the desert locust schistocerca gregaria, it is known that the behavior, including aggregation behavior and courtship inhibition, is largely controlled by pheromones. however, little is known about pheromones, their receptors, and the phe ...	2016	27012870
isolation and characterization of chitosan from different local insects in egypt.	chitin was extracted from four different local sources: the shrimp (penaeus monodon), the desert locust (schistocerca gregaria), the honey bee (apis mellifera) and the beetles (calosoma rugosa). chitosan was then obtained by deacetylation of chitin and physicochemically characterized using the fourier transform infrared (ftir) and x-ray diffraction. the moisture content, water binding capacity, fats binding capacity, ash content were determined and chitosans morphology was visualized using the s ...	2016	26459168
intracellular ducts in the epidermis of the male desert locust.		2016	5097107
[role of cephalic organs in sequential arrangement of feeding behavior in the desert locust, schistocerca gregaria].		2016	4766920
molecular characterization of a c-type lysozyme from the desert locust, schistocerca gregaria (orthoptera: acrididae).	lysozymes are bacteriolytic peptides that are implicated in the insect nonspecific innate immune responses. in this study, a full-length cdna encoding a c-type lysozyme from schistocerca gregaria (sglys) has been cloned and characterized from the fat body of immune-challenged 5(th) instar. the deduced mature lysozyme is 119 amino acid residues in length, has a calculated molecular mass of 13.4 kda and an isoelectric point (ip) of 9.2. sglys showed high identities with other insect lysozymes, ran ...	2016	26997372
biomechanical factors in the adaptations of insect tibia cuticle.	insects are among the most diverse groups of animals on earth. their cuticle exoskeletons vary greatly in terms of size and shape, and are subjected to different applied forces during daily activities. we investigated the biomechanics of the tibiae of three different insect species: the desert locust (schistocerca gregaria), american cockroach (periplaneta americana) and death's head cockroach (blaberus discoidalis). in a previous work, we showed that these tibiae vary not only in geometry (leng ...	2016	27486904
[effect of olive leaves (olea europea) feeding on the in vitro jh iii biosynthesis by the corpora allata in schistocerca gregaria during vitellogenesis].	per os administration of olive leaves (olea europea) to females of schistocerca gregaria results in stopping vitellogenesis. these vitellogenins are not synthesised by the fat body in the heamolymph. the vitellogenin inhibition is induced by the stopping of juvenile hormone jh iii by the corpora allata. these corpora allata (medicago sp.) synthesise 10 times less jh iii than those of alfalfa fed females.	2016	9412442
tissue-specific expression and silencing phenotypes of mitochondrial phosphate carrier paralogues in several insect species.	the mitochondrial phosphate carrier gene (pic) encodes a membrane protein that mediates the supply of inorganic phosphate from the cytosol into the mitochondrial matrix. this substrate-specific transport system plays an important role in efficient atp synthesis. mammals appear to have only one pic with two alternative splicing variants whose functional differences remain unclear. the present study is the first to characterize the multiple genes that encode pic in insects. bombyx mori was found t ...	2017	28224717
ontogeny of pioneer neurons in the antennal nervous system of the grasshopper schistocerca gregaria.	the nervous system of the antenna of the grasshopper schistocerca gregaria consists of two nerve tracts in which sensory cells project their axons to the brain. each tract is pioneered early in embryogenesis by a pair of identified cells located apically in the antennal lumen. the pioneers are thought to originate in the epithelium of the antenna and then delaminate into the lumen where they commence axogenesis. however, unambiguous molecular identification of these cells in the epithelium, of a ...	2017	27833997