title: Induced defense-related proteins in soybean (Glycine max L. Merrill) plants by Carnobacterium sp. SJ-5 upon challenge inoculation of Fusarium oxysporum.
abstract: The aim of the present study was to analyze induced expression of defense-related proteins in the soybean plants by rhizobacterial stain Carnobacterium sp. SJ-5 upon challenge inoculation with Fusarium oxysporum. Determination of the enzymatic activity of the different defense-related enzymes, phenylalanine ammonia lyase (PAL), lipoxygenase (LOX), peroxidase (POD) and polyphenol oxidase (PPO) was performed in the major parts of Glycine max L. Merrill using spectrophotometric method. Native-polyacrylamide gel electrophoresis analysis of the POD and PPO was employed followed by activity staining to find out the isoforms of respective enzymes. Activities of the PAL, LOX, POD and PPO were found to be highest in the bacterized root tissue of the soybean plants challenged with F. oxysporum. Isoform analysis revealed that PPO1, PPO4 and POD2 isoforms were expressed at higher levels in bacterized soybean root tissues challenge inoculated with the pathogen. Conclusively it was found that bacterial strain Carnobacterium sp. SJ-5 protect soybean plants from wilt disease caused by F. oxysporum by elicitation of the defense-related enzymes.
authors: Department of Science, Faculty of Arts, Science and Commerce (FASC), Mody University of Science and Technology (MUST), Lakshmangarh, 332311, Sikar, Rajasthan, India.
authors: Shekhar
authors: S
authors: Jain
authors: Devendra Kumar
authors: DK
authors: Choudhary
mesh_terms: D000935:Antifungal Agents / Q000494:pharmacology; D001681:Biological Assay; D056573:Carnobacterium / Q000187:drug effects / Q000502:physiology*; D004156:Catechol Oxidase / Q000378:metabolism; D003433:Crosses, Genetic; D005670:Fusarium / Q000187:drug effects / Q000502:physiology*; D018525:Germination / Q000187:drug effects; D006863:Hydrogen-Ion Concentration; D007527:Isoenzymes / Q000378:metabolism; D008084:Lipoxygenase / Q000378:metabolism; D008826:Microbial Sensitivity Tests; D063347:Native Polyacrylamide Gel Electrophoresis; D009195:Peroxidase / Q000378:metabolism; D010650:Phenylalanine Ammonia-Lyase / Q000378:metabolism; D010710:Phosphates / Q000378:metabolism; D010935:Plant Diseases / Q000276:immunology* / Q000382:microbiology*; D010940:Plant Proteins / Q000378:metabolism*; D012639:Seeds / Q000187:drug effects / Q000378:metabolism / Q000382:microbiology; D017262:Siderophores / Q000378:metabolism; D012995:Solubility; D013025:Glycine max / Q000254:growth & development / Q000276:immunology* / Q000378:metabolism / Q000382:microbiology*
chemical_list: D000935:Antifungal Agents; D007527:Isoenzymes; D010710:Phosphates; D010940:Plant Proteins; D017262:Siderophores; D004156:Catechol Oxidase; D009195:Peroxidase; D008084:Lipoxygenase; D010650:Phenylalanine Ammonia-Lyase