Induction of resistance in Camellia sinensis against Sclerotium rolfsii by dual application of Rhizophagus fasciculatus and Bacillus pumilus

• Published in: Archiv für Phytopathologie und Pflanzenschutz Vol. 48; no. 13-16; pp. 825 - 840
• Main Authors: Chakraborty, Bishwanath, Chakraborty, Usha, De, Utanka Kr, Chakraborty, Arka Pratim
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis 02.10.2015; Taylor & Francis Ltd
• Subjects: Athelia rolfsii; Bacillus pumilus; Camellia sinensis; disease control; disease suppression; enzymes; growth promotion; Heat resistance; induced resistance; Meat products; microorganisms; Plant growth; Rhizophagus; Rhizophagus fasciculatus; Rhizosphere; Sclerotium rolfsii; soil; tea
• ISSN: 1477-2906; 0323-5408; 1477-2906
• DOI: 10.1080/03235408.2016.1140607

Rhizophagus fasciculatus and Bacillus pumilus , isolated from rhizosphere of tea (Camellia sinensis (L.) O.Kuntze) bushes, were selected for the present study. Inoculation of tea bushes with any of the two micro-organisms increased growth of plants but significant increase was obtained in case of dual application. B. pumilus exhibited plant growth promoting rhizobacterial traits and antagonistic activity against Sclerotium rolfsii in vitro . Disease reduction following application of R. fasciculatus and B. pumilus was obtained when applied individually but joint application gave more significant results. A sharp increase was found in polyphenolic accumulation and activities of four defence enzymes which play a key role in disease suppression. Immunodetection of S. rolfsii in soil was done after treatments with bioinoculants using PAb of S. rolfsii and its population was significantly reduced owing to application of B. pumilus and R. fasciculatus .