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|標題:||Potential implications of biopriming in banana (Musa spp) plantlets against banana bunchy top virus (BBTV)||作者:||Kavino, M.
|關鍵字:||Banana bunchy top virus;micropropagated plantlets;microbial;inoculation;induced systemic resistance;defense enzymes||Project:||Journal of Plant Interactions||期刊/報告no：:||Journal of Plant Interactions, Volume 2, Issue 3, Page(s) 149-158.||摘要:||
Transplant media as a means for the introduction of biological agents is currently being investigated in a variety of crops. This study aimed to investigate the impact of microbial inoculation in micropropagated banana plantlets to enhance their resistance against Banana bunchy top virus (BBTV). Virus indexed micropropagated plantlets of banana were subjected to root colonization followed by foliar spraying with bacterial strains Pseudomonas fluorescens Pf1, CHA0 and Bacillus subtilis EPB22 during primary and secondary hardening stage in the nursery, at the time of repotting and 3 months after planting in the pot. Microbe inoculated plantlets showed enhanced PR proteins and defense enzymes besides reducing banana bunchy top disease incidence under glasshouse condition. The results indicated the effective use of beneficial microbes in reducing the disease incidence of BBTV in tissue culture banana plantlets. In addition, the molecular characterization of endophytes isolated from banana plantlets, using SDS-PAGE and RAPD-PCR revealed that endophytes were categorized into two distinct groups. These results emphasize the significance of microorganisms in protection of young plantlets from transplanting stresses in field. Further, the use of beneficial microorganisms instead of chemicals sustains an ecological niche in the agricultural ecosystem.
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