Effect of individual, simultaneous and sequential inoculation of pseudomonas fluorescens and meloidogyne incognita on growth, biochemical, enzymatic and nonenzymatic antioxidants of tomato (Solanum lycopersicum l.)
Source of Publication
This study was conducted on tomato (Solanum lycopersicum cv. K-21) to investigate the bioprotective nature of Pseudomonas fluorescens and its interactive effects with Meloidogyne incognita in terms of growth biomarkers, changes in biochemical attributes and modulation in antioxidant enzymes of the tomato plant. In this study, we grew tomato plants with M. incognita and P. fluorescens in separate pots, simultaneously and sequentially (15 days prior or post) after 15 days of seed sowing. The sequential inoculation of Mi15→Pf maximally increased the root-knot index and decreased the nematode population. It was also noted that inoculation suppressed the plant growth biomarkers in comparison to control. However, maximum suppression in nematode reproduction and increment in growth and physiological attributes were observed when P. fluorescens was applied 15 days prior to the nematode (Pf15→Mi) as compared to control. All the treatments showed an increase in antioxidant enzymes. Expression of phenol content and defensive enzymes such as peroxidase (POX) and superoxide dismutase (SOD) increased, in contrast to a significant reduction in malondialdehyde (MDA) and hydrogen peroxide (H2 O2 ) contents when compared with the untreated inoculated plants. However, the highest levels of POX and SOD, and a lowest of phenol, MDA and H2 O2 were displayed in the treatment Pf15→Mi, followed by Mi+Pf and Mi15→Pf.
Antioxidant enzymes, Inoculation, Meloidogyne incognita, Modulation, Phenol content, Pseudomonas fluorescens, Solanum lycopersicum, Tomato
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Noureldeen, Ahmed; Asif, Mohd; Ansari, Taruba; Khan, Faryad; Shariq, Mohammad; Ahmad, Faheem; Mfarrej, Manar Fawzi Bani; Khan, Amir; Tariq, Moh; Siddiqui, Mansoor Ahmad; Al-Barty, Amal; and Darwish, Hadeer, "Effect of individual, simultaneous and sequential inoculation of pseudomonas fluorescens and meloidogyne incognita on growth, biochemical, enzymatic and nonenzymatic antioxidants of tomato (Solanum lycopersicum l.)" (2021). All Works. 4286.
Indexed in Scopus
Open Access Type
Gold: This publication is openly available in an open access journal/series