Management of southern blight of bell pepper by soil amendment with dry biomass of Datura metel

Jabeen, Nadia; Javaid, Arshad; Shoaib, Amna; Khan, Iqra Haider

doi:10.1007/s42161-021-00874-6

Cited by 18 publications

(5 citation statements)

References 39 publications

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“…On the other side, the activity of the tested enzyme was the least in the case of Pima 3-79, whereas this species showed resistance against the pathogen in field experiments. In various previous studies, similar response of PPO to the pathogen inoculation was recorded (Jabeen et al, 2021;Sharf et al, 2021).…”

Section: Discussionsupporting

confidence: 72%

Effect of Verticilli̇um Wilt on the Antioxidant System and Formation of Iron Nanoparticles in Cotton Genotypes

Amrahov,

Allahverdiyev,

Agharzayeva

et al. 2023

THE JAPS

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The effect of a highly virulent fungus Verticillium dahliae Kleb. VD-11, with non-defoliating strain on polyphenol oxidase (PPO) and the antioxidant enzymes, such as guaiacol peroxidase (POX) and superoxide dismutase (SOD), was studied in double haploid cotton variety-Pima 3-79 (Gossypium barbadense L.), highly inbred line TM-1-(Gossypium hirsutum L.), as well as in genotypes CS B-15 and GS B-22, created by the substitution of one chromosome of TM-1 with the chromosome 15 and 22 of Pima 3-79 respectively. The treatment of plants with the pathogen led to an increase in the activity of PPO approximately 1.2 times in the case of TM-1 and CS B-15. However, these changes were insignificant in the case of Pima 3-79 variety, whereas the activity of the enzyme in the case of CS B-22 was decreased apparently. Similar effects were also obtained for POX. After inoculation, the activity of SOD in all genotypes, except CS B-15, was increased. On the contrary, the activity of SOD was decreased in the case of CS B-15 genotype. It was found that plant infection with the pathogen leads to a change in the concentration of free radicals, which, in turn, affects the activity of antioxidant enzymes. The fungal infection also led to the creation of new paramagnetic centers and nanophase crystal-like iron oxide particles in roots, but not in leaves.

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Section: Discussionsupporting

confidence: 72%

Effect of Verticilli̇um Wilt on the Antioxidant System and Formation of Iron Nanoparticles in Cotton Genotypes

Amrahov,

Allahverdiyev,

Agharzayeva

et al. 2023

THE JAPS

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“…Management of EB often relies on the repeated use of fungicides during the growing season. However, limited use of synthetic fungicides would be preferred in a sustainable system in accordance with global trends toward environmentally friendly disease management ( Nashwa and Abo-Elyousr, 2012 ; Adhikari et al, 2017 ; Jabeen et al, 2021 ). An alternative approach for controlling EB might be the use of biological control agents (BCAs; Czajkowski et al, 2011 ).…”

Section: Introductionmentioning

confidence: 99%

Exploring the mechanisms of endophytic bacteria for suppressing early blight disease in tomato (Solanum lycopersicum L.)

Sallam,

AbdElfatah,

Khalil Bagy

et al. 2023

Front. Microbiol.

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Controlling early blight of tomatoes using endophytic bacteria is an eco-friendly and sustainable approach to manage this common fungal disease caused by Alternaria solani, Alternaria alternata, and Curvularia lunata. Endophytic bacteria are microorganisms that live inside plant tissues without causing harm and can help protect the host plant from pathogens. In this work, twenty endophytic bacterial isolates from tomato healthy plants were tested against pathogenic fungal isolates that caused early blight disease in vitro. Out of the 20 tested isolates, three (B4, B7, and B17) were considered effective isolates against the growth of fungal pathogens. The three isolates were recognized as Enterobacter cloacae HS-6 (B4), Pseudomonas gessardii HS-5 (B 7), and Pseudomonas mediterranea HS-4 (B17) using 16s-rDNA sequencing. Different concentrations of bacterial cultural diltrates at 20, 40, and 60% were tested for their antagonistic effects on the development of pathogenic fungi in vitro. The lowest dry weights of pathogenic isolates in all bacterial culture filtrates were discovered at 60%. In all culture filtrates, phenolic compounds showed the largest peak area. Under greenhouse conditions, the least disease severity of tomato early blight was found for E. cloacae and its culture filtrate compared to other treatments. Real-time PCR was used to examine the expression pattern of the defense response gene β-1.3 glucanase gene in infected tomato plants with pathogenic fungi (control) as well as its relations with efficient biocontrol agent (E. cloacae). The expression of the gene increased substantially and significantly after three days from the inoculation-infected plants with C. lunata and E. cloacae while it reached the maximum after five days from the inoculation with A. alternata, A. solani and E. cloacae. Our study concluded that the endophytic bacterial isolate E. cloacae can be considered a promising biocontrol agent for preventing tomato early blight.

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“…Whereas, the application of synthetic agro-chemicals should be discouraged as they are non-host specific, detrimental for beneficial microbes, having toxic effects and thus pollute the environment (Kumar, 2018). Therefore, there is a strong need to develop some plant derived, eco-friendly alternative management strategies to control diseases (Javaid et al, 2018;Khan et al, 2020;Jabeen et al, 2021Jabeen et al, , 2022. Eucalyptus citriodora is a medicinal plant grown widely in Indonesia, Tasmania, Australia, Brazil, Africa, India and Pakistan (Franco et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Identification of Antifungal Compounds From Leaf Extract of Eucalyptus Citriodora Against Ascochyta Rabiei

Javaid¹

2023

PJS

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Ascochyta rabiei (Pass.) Lab. is a highly destructive pathogen of chickpea. In thisstudy, leaf extract of Eucalyptus citriodora was assessed against this pathogen. Bioassays withmethanolic extract (0, 05, 1.0, 1.5, …, 4.0%) extract revealed the remarkable antifungal potential ofleaf extract where 69–94% reduction in biomass of A. rabiei was recorded. Chloroform fraction of thisextract was separated by partitioning the extract in a separating funnel. Using a solvent system ofchloroform: n-hexane (20:80), three compounds were detected on TLC plate which were separatedthrough preparative TLC and purified on HPLC. GC-MS of the purified compounds lead to theidentification of 3-cyclohexene- 1-ol, 4-methyl-1-(1-methylethyl)- (1), 1-cyclohexene- 1carboxaldehyde,4-(1-methylethyl)- (2) and eucalyptol (3) that might caused antifungal activity of the extract.

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Management of southern blight of bell pepper by soil amendment with dry biomass of Datura metel

Cited by 18 publications

References 39 publications

Effect of Verticilli̇um Wilt on the Antioxidant System and Formation of Iron Nanoparticles in Cotton Genotypes

Effect of Verticilli̇um Wilt on the Antioxidant System and Formation of Iron Nanoparticles in Cotton Genotypes

Exploring the mechanisms of endophytic bacteria for suppressing early blight disease in tomato (Solanum lycopersicum L.)

Identification of Antifungal Compounds From Leaf Extract of Eucalyptus Citriodora Against Ascochyta Rabiei

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