Ameliorative effect of rhizobacteria Bradyrhizobium japonicum on antioxidant enzymes, cell viability and biochemistry in tomato plant under nematode stress DOI Creative Commons
Roohi Sharma, Nitika Kapoor, Puja Ohri

и другие.

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Март 7, 2025

Root Knot Nematode (Meloidogyne incognita) is a major agricultural pest that significantly reduces crop yield. This study investigates the nematicidal potential of Bradyrhizobium japonicum strain 11477 against M. incognita to regulate its pathogenicity in Solanum lycopersicum. Tomato seeds were treated with bacterial cells and supernatant, grown under controlled conditions later infested nematode juveniles (5J2/seedling). After 10 days, infestation led reduced seedling growth, lower root shoot biomass decreased photosynthetic pigments. It also triggered oxidative stress, as indicated by elevated stress markers. Enzymatic non-enzymatic antioxidants along phenolic compounds showed increased activity response nematode-induced stress. However, B. treatment gall formation, improved plant growth enhanced biochemical histochemical attributes. Rhizobacteria alleviated indices, strengthened antioxidant defenses metabolite production. Confocal microscopy revealed hydrogen peroxide localization, glutathione content nuclear membrane damage apices, correlating defense responses. highlights potent biocontrol agent enhances resilience incognita. Notably, this first report on impact leguminous rhizobacterium non-leguminous tomato plant, providing new insights into for sustainable management.

Язык: Английский

Ameliorative effect of rhizobacteria Bradyrhizobium japonicum on antioxidant enzymes, cell viability and biochemistry in tomato plant under nematode stress DOI Creative Commons
Roohi Sharma, Nitika Kapoor, Puja Ohri

и другие.

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Март 7, 2025

Root Knot Nematode (Meloidogyne incognita) is a major agricultural pest that significantly reduces crop yield. This study investigates the nematicidal potential of Bradyrhizobium japonicum strain 11477 against M. incognita to regulate its pathogenicity in Solanum lycopersicum. Tomato seeds were treated with bacterial cells and supernatant, grown under controlled conditions later infested nematode juveniles (5J2/seedling). After 10 days, infestation led reduced seedling growth, lower root shoot biomass decreased photosynthetic pigments. It also triggered oxidative stress, as indicated by elevated stress markers. Enzymatic non-enzymatic antioxidants along phenolic compounds showed increased activity response nematode-induced stress. However, B. treatment gall formation, improved plant growth enhanced biochemical histochemical attributes. Rhizobacteria alleviated indices, strengthened antioxidant defenses metabolite production. Confocal microscopy revealed hydrogen peroxide localization, glutathione content nuclear membrane damage apices, correlating defense responses. highlights potent biocontrol agent enhances resilience incognita. Notably, this first report on impact leguminous rhizobacterium non-leguminous tomato plant, providing new insights into for sustainable management.

Язык: Английский

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