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Bacillus amyloliquefaciens (VB7) with Diverse Antimicrobial Peptide Genes:A Potential Antagonist for the Management of Fairy Ring Spot in Carnations


Affiliations
1 Department of Plant Pathology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore 641 003, India
 

Fairy ring spot incited by Cladosporium echinulatum is an unexplored yet disastrous disease of carnation. Bacillus amyloliquefaciens (VB7) with 10 diverse antimicrobial peptide genes, effectively reduced fairy ring spot intensity to 6.44 (per cent disease index, PDI) and increased flower yield (196.61 Nos/m2) compared to control (PDI - 60.33; flower yield - 140.70 Nos/m2). Plants treated with tebuconazole (250 EC, emulsifiable concentrate) and alternated with mancozeb (75% WP, wettable powder) were much effective and reduced disease intensity up to 3.46 PDI. However, flower yield was comparatively lesser to the treatment of B. amyloliquefaciens (VB7). Results revealed that B. amyloliquefaciens out-performed fungicides in growth promotion.

Keywords

Antimicrobial Peptide, Bacillus amyloliquefaciens (VB7), Cladosporium echinulatum, Fairy Ring Spot.
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  • Bacillus amyloliquefaciens (VB7) with Diverse Antimicrobial Peptide Genes:A Potential Antagonist for the Management of Fairy Ring Spot in Carnations

Abstract Views: 248  |  PDF Views: 79

Authors

S. Vinodkumar
Department of Plant Pathology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore 641 003, India
S. Nakkeeran
Department of Plant Pathology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore 641 003, India

Abstract


Fairy ring spot incited by Cladosporium echinulatum is an unexplored yet disastrous disease of carnation. Bacillus amyloliquefaciens (VB7) with 10 diverse antimicrobial peptide genes, effectively reduced fairy ring spot intensity to 6.44 (per cent disease index, PDI) and increased flower yield (196.61 Nos/m2) compared to control (PDI - 60.33; flower yield - 140.70 Nos/m2). Plants treated with tebuconazole (250 EC, emulsifiable concentrate) and alternated with mancozeb (75% WP, wettable powder) were much effective and reduced disease intensity up to 3.46 PDI. However, flower yield was comparatively lesser to the treatment of B. amyloliquefaciens (VB7). Results revealed that B. amyloliquefaciens out-performed fungicides in growth promotion.

Keywords


Antimicrobial Peptide, Bacillus amyloliquefaciens (VB7), Cladosporium echinulatum, Fairy Ring Spot.

References





DOI: https://doi.org/10.18520/cs%2Fv115%2Fi8%2F1519-1524