Abstract
All glucan elicitors from fungal cell walls have been described as ß-glucans. In a previous work, we have isolated and characterized an α-1, 3-glucan from a non-pathogenic Rhizoctonia isolate which induced glucanase activity in potato sprouts. In this work we showed that, in addition to eliciting a wide array of defense reactions, the α-1, 3-glucan induces protection against Rhizoctonia canker and dry rot in plants and tubers, respectively. The α-1, 3-glucan strongly induced ß-1, 3-glucanase and chitinase activities. Immunological analysis showed that the level of the pathogenesis-related proteins increased. Histological studies showed an increase in cell wall deposition of callose and lignin, and ultrastructural analysis showed changes in the cytoplasm and the accumulation of electron-dense bodies in vacuoles. Protection assays showed that pre-treatments of potato sprouts and potato tubers with the α-1, 3-glucan results in a 40% of protection against Rhizoctonia canker and 60% protection against dry rot, respectively.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
