Antagonistic effect of Pseudomonas fluorescens isolated from soil of Doon Valley (Dehradun–India) on certain phyto-pathogenic fungi

  • strict warning: Non-static method view::load() should not be called statically in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/views.module on line 1113.
  • strict warning: Declaration of views_handler_argument::options_validate() should be compatible with views_handler::options_validate($form, &$form_state) in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/handlers/views_handler_argument.inc on line 917.
  • strict warning: Declaration of views_handler_argument::query() should be compatible with views_handler::query($group_by = false) in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/handlers/views_handler_argument.inc on line 917.
  • strict warning: Declaration of views_plugin_pager_none::post_execute() should be compatible with views_plugin_pager::post_execute(&$result) in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/plugins/views_plugin_pager_none.inc on line 69.
  • strict warning: Declaration of views_plugin_query::options_submit() should be compatible with views_plugin::options_submit($form, &$form_state) in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/plugins/views_plugin_query.inc on line 169.
  • strict warning: Declaration of views_plugin_argument_default_taxonomy_tid::options_submit() should be compatible with views_plugin_argument_default::options_submit($form, &$form_state) in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/modules/taxonomy/views_plugin_argument_default_taxonomy_tid.inc on line 119.
  • strict warning: Declaration of views_plugin_style_default::options() should be compatible with views_object::options() in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/plugins/views_plugin_style_default.inc on line 24.
  • strict warning: Declaration of views_plugin_row::options_validate() should be compatible with views_plugin::options_validate(&$form, &$form_state) in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/plugins/views_plugin_row.inc on line 136.
  • strict warning: Non-static method view::load() should not be called statically in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/views.module on line 1113.
  • strict warning: Non-static method view::load() should not be called statically in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/views.module on line 1113.
  • strict warning: Non-static method view::load() should not be called statically in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/views.module on line 1113.
  • strict warning: Declaration of views_handler_field::query() should be compatible with views_handler::query($group_by = false) in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/handlers/views_handler_field.inc on line 1147.
  • strict warning: Declaration of content_handler_field::element_type() should be compatible with views_handler_field::element_type($none_supported = false, $default_empty = false, $inline = false) in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/cck/includes/views/handlers/content_handler_field.inc on line 229.
  • strict warning: Declaration of views_handler_filter::options_validate() should be compatible with views_handler::options_validate($form, &$form_state) in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/handlers/views_handler_filter.inc on line 587.
  • strict warning: Declaration of views_handler_filter::query() should be compatible with views_handler::query($group_by = false) in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/handlers/views_handler_filter.inc on line 587.
  • strict warning: Declaration of views_handler_filter_search::exposed_validate() should be compatible with views_handler::exposed_validate(&$form, &$form_state) in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/modules/search/views_handler_filter_search.inc on line 112.
  • strict warning: Declaration of views_handler_area::query() should be compatible with views_handler::query($group_by = false) in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/handlers/views_handler_area.inc on line 81.
  • strict warning: Declaration of views_handler_area_text::options_submit() should be compatible with views_handler::options_submit($form, &$form_state) in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/handlers/views_handler_area_text.inc on line 121.
  • strict warning: Non-static method view::load() should not be called statically in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/views.module on line 1113.
  • strict warning: Declaration of views_handler_sort::options_validate() should be compatible with views_handler::options_validate($form, &$form_state) in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/handlers/views_handler_sort.inc on line 165.
  • strict warning: Declaration of views_handler_sort::options_submit() should be compatible with views_handler::options_submit($form, &$form_state) in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/handlers/views_handler_sort.inc on line 165.
  • strict warning: Declaration of views_handler_sort::query() should be compatible with views_handler::query($group_by = false) in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/handlers/views_handler_sort.inc on line 165.
  • strict warning: Non-static method view::load() should not be called statically in /home/u809185268/domains/sciencebeingjournal.com/public_html/sites/all/modules/views/views.module on line 1113.
Rajendra Prasad, Harish Chandra, Bijendra Kumar Sinha, Jatin Srivastava

 Department of Forestry, Uttaranchal University, Dehradun, Uttarakhand India

 High Altitude Plant Physiology Research Center, H.N.B. Garhwal University, Srinagar – 246174, Uttarakhand, India

Department of Microbiology, Gayatri College of  Biomedical Sciences, Ballupur Chowk, Dehradun, Uttarakhand, India.

Department of Environmental Sciences, Global Environment Engineering Service, Lucknow – 226016, UP,  India.

In line with the major biological control measures to control the soil borne fungal infection in crop plants were worked out in District Dehradun (Uttarakhand) India. Pseudomonas fluorescens was isolated from soil samples collected from various places of Dehradun district and was investigated for antagonistic activity against native fungal phytopathogens viz., Alternaria alternata, Aspergillus flavus, Aspergillus niger, Erysiphe cruciferarum, Fusarium oxysporum by dual culture method. Maximum antagonistic effect of P. fluorescens was observed against F. oxysporum (73.24 ±2.40 %) followed by A. alternata (51.20 ± 0.12 %), A. flavus (37.85 ± 0.83%), E. cruciferarum (37.12 ± 0.66%) and least by A. niger (32.13 ± 1.77 %). Relative percentage of germination of spores of phyto-pathogen in culture filtrate of P. fluorescens was also investigated against these phyto-pathogens and it was found correlated with the antagonistic effect. Present study shows the prevalence of natural biological control on the phyto-pathogenic fungi.

 

Keywords: Pseudomonas fluorescens; phyto-pathogenic fungi; spore germination; antagonism; dual culture method.

application/pdf icon| PDF (1 MB) |