Role of endophytic Penicillium species and Pseudomonas monteilii in inducing the systemic resistance in okra against root rotting fungi and their effect on some physiochemical properties of okra fruit.
J Appl Microbiol
; 130(2): 604-616, 2021 Feb.
Article
em En
| MEDLINE
| ID: mdl-33053259
ABSTRACT
AIMS:
The efficacy of three isolates of endophytic Penicillium species that have shown significant suppressive effect on root rotting fungi in our previous study were further evaluated in pots and field plot experiments for their effect on root diseases of okra, induction of systemic resistance and physiochemical properties of okra fruit. METHODS ANDRESULTS:
Aqueous suspensions of endophytic Penicillium and Pseudomonas monteilii were applied in pots and field plots using okra as test plant. Data on the fungal infection of roots, plant growth, plant resistance markers like polyphenol, salicylic acid and antioxidant status of plant were determined. These isolates significantly suppressed root diseases and induced systemic resistance via increasing level of resistance markers, polyphenol and salicylic acid besides improving antioxidant activity of Penicillium and P. monteilii-treated plants as compared to control plants. GC-MS analysis of n-hexane extract of mycelium of P. nigricans revealed the presence of 15 different volatile compounds.CONCLUSIONS:
Endophytic Penicillium and P. monteilii have potential against root-infecting fungi of okra and can improve plant growth and yield. SIGNIFICANCE AND IMPACT OF THE STUDY Endophytic Penicillium species and P. monteilii can suppress root rotting fungi by direct mechanism or induction of systemic resistance in plants.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Penicillium
/
Pseudomonas
/
Abelmoschus
/
Endófitos
/
Resistência à Doença
Idioma:
En
Revista:
J Appl Microbiol
Assunto da revista:
MICROBIOLOGIA
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Paquistão