Impact of Trichoderma, abscisic acid and polyamines on resistance tomato cultivars against M. incognita infection.

Background: The interaction of various treatments such as abscisic acid (ABA), polyamines (PS), and biological control with Trichoderma against Meloidogyne incognita was evaluated to assess their impact on pathological indices, growth metrics, and defense mechanisms in tomato cultivars.

Methods: The study assessed Meloidogyne incognita root tomato disease (number of galls and egg masses) and growth parameters (shoot, root system, and fruit weight) in two tomato cultivars (1077 and Dania 85), along with the activities of defense enzymes; peroxidase (POD), polyphenol oxidase (PPO) and expression of defense genes (POD, PPO and PR2). Specifically, the study evaluated abscisic acid (ABA; 10 µM), potassium silicate (5 g/L), and biological Trichoderma harzianum (10 CFU/ml) treatments under greenhouse conditions 45 days post-inoculation.

Physio-molecular responses of tomato cultivars to biotic stress: Exploring the interplay between Alternaria alternata OP881811 infection and plant defence mechanisms.

Plant fungal diseases impose a formidable challenge for global agricultural productivity, a meticulous examination of host-pathogen interactions. In this intricate study, an exhaustive investigation was conducted on infected tomatoes obtained from Egyptian fields, leading to the precise molecular identification of the fungal isolate as Alternaria alternata (OP881811), and the isolate showed high identity with Chinese isolates (ON973896 and ON790502). Subsequently, fourteen diverse tomato cultivars; Cv Ferment, Cv 103, Cv Damber, Cv 186, Cv 4094, Cv Angham, Cv N 17, Cv Gesma, Cv 010, Cv branch, cv 2020, Cv 023, Cv Gana and Cv 380 were meticulously assessed to discern their susceptibility levels upon inoculation with Alternaria alternata.

Bioremediation of chlorpyrifos residues using some indigenous species of bacteria and fungi in wastewater.

Pollutants cause a huge problem for humans, animals, plants, and various ecosystems, especially water resources. Agricultural, domestic, and industrial waste effluents change the water quality and affect living microorganisms. Therefore, the current study aimed to identify possible microorganisms in wastewater as potential bioremediation agents of pesticide residues.