{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/85050"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/85050","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Biocontrol Systems for Rhizotocnia Disease of Soybean","abstract":"The detection of proteolytic activity by strain B153-2-2 and isolate 2B-12 indicated the possible involvement of extracellular enzymes in antagonism and biocontrol. Antagonism by cell-free culture filtrate fractions indicated that strain B153-2-2 produced an active metabolite. Endopeptidase, acid protease, and an extracellular proteinase (metalloproteinase) were detected in the interaction and were identified based on molecular cut-off, pH range, and inactivation by inhibitors. Extracellular enzymes altered the branching pattern of R. solani isolate 2B-12 and were effective in retarding the growth of the fungal pathogen.","abstract_html":"The detection of proteolytic activity by strain B153-2-2 and isolate 2B-12 indicated the possible involvement of extracellular enzymes in antagonism and biocontrol. Antagonism by cell-free culture filtrate fractions indicated that strain B153-2-2 produced an active metabolite. Endopeptidase, acid protease, and an extracellular proteinase (metalloproteinase) were detected in the interaction and were identified based on molecular cut-off, pH range, and inactivation by inhibitors. Extracellular enzymes altered the branching pattern of R. solani isolate 2B-12 and were effective in retarding the growth of the fungal pathogen.","abstract_has_math":false,"creators":["Thimmaiah, Narendrappa"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Crop Sciences","degree_department":null,"school":null,"contributors":["Sinclair, James B."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-09-25T22:33:37Z","date_published":"2015-09-25T22:33:37Z","updated_at":"2026-07-22T22:26:24Z","subjects":["Agriculture, Agronomy"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(MiAaPQ)AAI9737273"],"render_values":[{"text":"(MiAaPQ)AAI9737273","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/85050","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Sinclair, James B."]},{"key":"dc:creator","label":"Author","values":["Thimmaiah, Narendrappa"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2015-09-25T22:33:37Z","10000-01-01","1997"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Crop Sciences"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Agriculture, Agronomy"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/85050","(MiAaPQ)AAI9737273"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The detection of proteolytic activity by strain B153-2-2 and isolate 2B-12 indicated the possible involvement of extracellular enzymes in antagonism and biocontrol. 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