TY - JOUR
AU - Smith, H., W.
AB - Abstract The primary objective of this study was to determine if the grasshopper Melanoplus sanguinipes (F.) shows biochemical symptoms of stress in the amino acid content of its hemolymph. Changes in amino acid composition caused by diet had to be considered, since the grasshoppers were maintained on different diets. It was found that grasshoppers fed on the laboratory diet had a higher concentration of glutamine, glutamic acid, and asparagine and a greater number of ninhydrin-positive unidentified compounds. Differences in amino acid concentration also were noted in grasshoppers collected from different localities throughout the State of Idaho. The effect of drastic forms of stress on grasshoppers was most noticeable as an increase in concentration of glutamine and asparagine, and a decrease of proline. Taurine was found only in the blood of grasshoppers from crowded populations, and in physically restrained and electrically stimulated grasshoppers. This content is only available as a PDF. Author notes 1 Published with the approval of the Director of the Idaho Agricultural Experiment Station as Research Paper no. 770. This work was in part supported by Western Regional Project W-92, Physiological Factors Affecting Grasshopper Populations. Literature review completed March 1967. © 1971 Entomological Society of America
TI - Free Amino Acids in the Eggs and Hemolymph of the Grasshopper Melanoplus sanguinipes (Orthoptera: Acrididae). 2. Changes in Composition as a Result of Diet and Population and Artificial Stress
JO - Annals of the Entomological Society of America
DO - 10.1093/aesa/64.3.703
DA - 1971-05-17
UR - https://www.deepdyve.com/lp/oxford-university-press/free-amino-acids-in-the-eggs-and-hemolymph-of-the-grasshopper-jkT09K719r
SP - 703
EP - 708
VL - 64
IS - 3
DP - DeepDyve
ER -