The effect of divalent cations such as cadmium, calcium, copper, lead and magnesium upon the prophenoloxidase system (proPO) was studied in hemocytes of the crayfish Cambarus latimanus. It was demonstrated that cadmium, calcium, copper and lead increased proPO activity significantly, whereas magnesium had no statistically significant effect on the system. Also, the molecular weight of the proPO enzyme was estimated using SDS-PAGE and found to be approximately 76 kDa.
","abstract_html":"<p>The effect of divalent cations such as cadmium, calcium, copper, lead and magnesium upon the prophenoloxidase system (proPO) was studied in hemocytes of the crayfish Cambarus latimanus. It was demonstrated that cadmium, calcium, copper and lead increased proPO activity significantly, whereas magnesium had no statistically significant effect on the system. Also, the molecular weight of the proPO enzyme was estimated using SDS-PAGE and found to be approximately 76 kDa.</p>","abstract_has_math":false,"creators":["Eikaas, Hans Skailand"],"institution":null,"degree_name":"Master of Science","degree_level":"Thesis","degree_discipline":"Earth & Space Science","degree_department":null,"school":null,"contributors":["Charles A. Lovelette","Julie Ballenger","Jeffrey Zuiderveen"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1999,"date_issued":"1999-12-01T08:00:00Z","date_published":"1999-12-01T08:00:00Z","updated_at":"2026-07-24T01:44:41Z","subjects":["Cambarus Latimanus","Crayfish","Hemocytes","ProPO Enzyme","Earth Sciences","Environmental Health and Protection","Environmental Sciences"],"languages":["English"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://csuepress.columbusstate.edu/theses_dissertations/40","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Charles A. Lovelette","Julie Ballenger","Jeffrey Zuiderveen"]},{"key":"dc:creator","label":"Author","values":["Eikaas, Hans Skailand"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["2015-10-02T07:00:00Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Earth & Space Science"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Cambarus Latimanus","Crayfish","Hemocytes","ProPO Enzyme","Earth Sciences","Environmental Health and Protection","Environmental Sciences"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["English"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://csuepress.columbusstate.edu/theses_dissertations/40"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The effect of divalent cations such as cadmium, calcium, copper, lead and magnesium upon the prophenoloxidase system (proPO) was studied in hemocytes of the crayfish Cambarus latimanus. It was demonstrated that cadmium, calcium, copper and lead increased proPO activity significantly, whereas magnesium had no statistically significant effect on the system. Also, the molecular weight of the proPO enzyme was estimated using SDS-PAGE and found to be approximately 76 kDa.
"]},{"key":"dc:title","label":"Title","values":["The Effect of Divalent Cations on the Prophenoloxidase Enzyme Cascade Activity in the Freshwater Crayfish Cambarus Latimanus"]}]}],"canonical_facts":{"dc:contributor":["Charles A. Lovelette","Julie Ballenger","Jeffrey Zuiderveen"],"dc:creator":["Eikaas, Hans Skailand"],"dc:date.available":["2015-10-02T07:00:00Z"],"dc:description.abstract":["The effect of divalent cations such as cadmium, calcium, copper, lead and magnesium upon the prophenoloxidase system (proPO) was studied in hemocytes of the crayfish Cambarus latimanus. It was demonstrated that cadmium, calcium, copper and lead increased proPO activity significantly, whereas magnesium had no statistically significant effect on the system. Also, the molecular weight of the proPO enzyme was estimated using SDS-PAGE and found to be approximately 76 kDa.
"],"dc:identifier":["https://csuepress.columbusstate.edu/theses_dissertations/40"],"dc:language":["English"],"dc:subject":["Cambarus Latimanus","Crayfish","Hemocytes","ProPO Enzyme","Earth Sciences","Environmental Health and Protection","Environmental Sciences"],"dc:title":["The Effect of Divalent Cations on the Prophenoloxidase Enzyme Cascade Activity in the Freshwater Crayfish Cambarus Latimanus"],"thesis:degree_discipline":["Earth & Space Science"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["Master of Science"]},"updated_at":"2026-07-24T01:44:41Z"}