Effect of Beta-Aminobutyric Acid on Activity of Peroxidase and Polyphenol Oxidase Enzymes in Cucumber Infected With Nematode Meloidogyne Javanica

Mahmoudi, Niloufar

doi:10.22363/2312-797x-2019-14-1-7-17

Cited by 4 publications

(2 citation statements)

References 24 publications

(25 reference statements)

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“…On the other hand, both peroxidase and polyphenol oxidase activities reached their highest peak after 5 dpt, with superiority over both controls. Peroxidase and polyphenol oxidase are related to plant defense against a wide range of plant pathogenic microorganisms [73]. Recently, it was reported that foliar application of phenolic acids on tomato plants raised the activities of phenylalanine ammonia-lyase and polyphenol oxidase [69].…”

Section: Discussionmentioning

confidence: 99%

The Antifungal Activity of Gallic Acid and Its Derivatives against Alternaria solani, the Causal Agent of Tomato Early Blight

et al. 2020

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Tomato (Solanum lycopersicum L.) is among the most important vegetable crops worldwide. Early blight disease, caused by Alternaria solani, is a destructive foliar disease of tomato and other Solanaceae species. Herein, we investigated the in vitro antifungal properties of gallic acid and two of its derivatives (syringic and pyrogallic acids) against A. solani during 2019 and 2020 seasons. The physiological and biochemical effects of these compounds on infected tomato plants were also investigated using the whole plant bioassay. The in vitro investigation showed that all tested compounds showed fungistatic action and inhibited the mycelial radial growth of A. solani in a dose-dependent manner. In two separate pot-experiments, those compounds efficiently suppressed the development of the disease symptoms and area under disease progress curve (AUDPC), without any phytotoxic effects on the treated tomato plants. Additionally, all tested compounds positively enhanced the biochemical traits of treated plants including the chlorophyll content, the total soluble phenolics, the total soluble flavonoids, and the enzymatic activities of catalase, peroxidase, and polyphenol oxidase during 2019 and 2020 seasons. Moreover, the treatment with gallic acid and its derivatives significantly increased all yield components of A. solani-infected tomato plants such as the total number of flowers and fruits, and the fruit yield for each tomato plant in both experiments. Considering the fungitoxicity of phenolic acids against A. solani with no phytotoxicity on treated tomato plants, we believe that gallic acid and its derivatives might be a sustainable eco-friendly control strategy to reduce the usage of chemical fungicides partially or entirely against A. solani particularly, and fungal diseases in general.

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Section: Discussionmentioning

confidence: 99%

The Antifungal Activity of Gallic Acid and Its Derivatives against Alternaria solani, the Causal Agent of Tomato Early Blight

et al. 2020

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“…second larvae of nematode is more common. Extracting egg and providing second larvae was done using [4] method.…”

Section: Introductionmentioning

confidence: 99%

Investigation and Comparison Effect of Glomus Intraradices and Glomus Mosseae to Control of Meloidogyne Javanica in Cucumis Sativus

Mahmoudi

2021

ARTOAJ

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G. intraradices and G. mosseae are important in the interaction of pathogens with the host plant. They are released into the environment roots, soil and aerial parts of the plant in interaction with various other microorganisms survive. Species of this fungus, especially G. intraradices and G. mosseae to high reproductive rate, high ability in the use of different food sources, high power of aggression against pathogens, utilization of antagonistic mechanisms such as competition, parasitism, and antibiosis, ability to changes in the rhizosphere, production of extracellular enzymes such as amylolytic, pectolytic, proteolytic, lipolytic, Ketinolytic and cellulite as well as efficacy in stimulation growth and induction of resistance in plants are very important factors. More studies have shown that these fungi cause decrease diseases and symptoms are caused by soil pathogens [3]. Materials and Methods Preparing M. javanica nematode populationAfter providing a plant sample infected with nematode, using single egg mass method, and reproducing it consecutively on the roots of cucumber, its purification and reproduction were performed. In most of the nematology investigation, the egg and larvae of nematode are used in order to create an infection. However, generally, because some eggs are not alive, using the

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Assessment of plant defence induction and biocontrol potential of Bacillus megaterium wr101 against Meloidogyne javanica

Sahebani

Omranzade

2020

Nematol.

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Summary The aim of this study was to evaluate biological control ability and induction of plant defence by Bacillus megaterium wr101, isolated from wheat rhizosphere, on disease severity induced by Meloidogyne javanica on cucumber. In addition, changes in some plant defence compounds (such as peroxidase, polyphenol oxidase, catalase, hydrogen peroxide (H2O2) and accumulation of total phenolic compounds) induced by B. megaterium wr101 and M. javanica were also evaluated. Results showed that application of B. megaterium wr101 reduced nematode disease indices compared to non-treated controls. Inoculation of cucumber roots with B. megaterium wr101 increased peroxidase and polyphenol oxidase activities in root tissue from the first day after inoculation (DAI), with maximum levels of these enzymes recorded 4 DAI and then reduced gradually. Catalase activity and H2O2 accumulation showed two peaks on 1 and 5 DAI, respectively, but the presence of nematodes in the plant significantly increased the activity level of catalase enzyme even in the presence of the bacterium. Bacillus megaterium wr101 also stimulated the accumulation of total phenolic compounds in cucumber roots.

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Effect of Beta-Aminobutyric Acid on Activity of Peroxidase and Polyphenol Oxidase Enzymes in Cucumber Infected With Nematode Meloidogyne Javanica

Cited by 4 publications

References 24 publications

The Antifungal Activity of Gallic Acid and Its Derivatives against Alternaria solani, the Causal Agent of Tomato Early Blight

The Antifungal Activity of Gallic Acid and Its Derivatives against Alternaria solani, the Causal Agent of Tomato Early Blight

Investigation and Comparison Effect of Glomus Intraradices and Glomus Mosseae to Control of Meloidogyne Javanica in Cucumis Sativus

Assessment of plant defence induction and biocontrol potential of Bacillus megaterium wr101 against Meloidogyne javanica

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