Biochemical and Molecular Variations of Guaiacol Peroxidase and Total Phenols in Bacterial Wilt Pathogenesis of Solanum melongena

Prakasha, Avinash; Umesha, S.

doi:10.4172/2161-1009.1000292

Cited by 3 publications

(2 citation statements)

References 38 publications

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“…Rojas et al (2018) suggest the transcriptional regulation of β-glucosidases and their possible impact in the defense mechanism against fungal Fusarium proliferatum infections in maize. Plants also respond to bacteria (Ralstonia (Prakasha and Sharan 2016). The differences in the activity of both enzymes were visible between the tested varieties.…”

Section: Discussionmentioning

confidence: 99%

The activity of β-glucosidase and guaiacol peroxidase in different genotypes of winter oilseed rape (Brassica napus L.) infected by Alternaria black spot fungi

et al. 2020

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The plants have developed several defense mechanisms to counteract pathogens. Among others, it includes activation of antioxidant enzymes like β-glucosidase and guaiacol peroxidase (GPX). These proteins participate in the oxidation of phenolic compounds, contributing to their increased fungitoxicity. The study aimed to analyze changes in the activity of β-glucosidase and GPX in four genotypes of winter oilseed rape (Mendel, Monolit, Polka, line L1425) inoculated with seven isolates: Alternaria brassicicola, Alternaria brassicae, Alternaria alternata (3 strains), Ulocladium chartarum (syn. A. chartarum), and Cladosporium cladosporioides. We noted that the varieties of oilseed rape, tested fungal species, and time of the plant material collection had significant (P < 0.001) effect on the activity of β-glucosidase and GPX per protein and fresh matter content comparing to the control group. A. brassicicola caused the highest mean increase in β-glucosidase and GPX activity in all examined genotypes, while other pathogens had a lower impact. Significantly lower β-glucosidase activity inoculated by various pathogens was noted between the L 1425 line and other varieties. GPX activity was in the opposite, the lowest activity was recorded in the Mendel variety, and the highest in the L 1425 line. Keywords Oilseed rape • β-glucosidase • Guaiacol peroxidase • Alternaria black spot Communicated by M. Horbowicz.

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Section: Discussionmentioning

confidence: 99%

The activity of β-glucosidase and guaiacol peroxidase in different genotypes of winter oilseed rape (Brassica napus L.) infected by Alternaria black spot fungi

et al. 2020

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“…As for drought plants (Xerophytes): they are plants of stress and strange mutations as well. They are real drought plants distinguished by the small shoot and root systems, which are tens of meters deep [8]. The osmotic pressure of its cellular juice is so high that it increases its ability to absorb water that is unaffordable to other plants, the wilting coefficient percentage [9], where the water is a thin film attached to the soil particles with a force that is difficult for ordinary plants to overcome.…”

Section: Xerophytes Plantsmentioning

confidence: 99%

A taxonomic Environmental Study of some Dicotyledon Plant Species Growing Wildly in Western Iraq

Abdulmajeed

Hamad

Shlash

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Taxonomy gives great importance to the geographical distribution of plants on the surface of the planet earth, and for this reason, Cain introduced the term Areography to the science that is particularly interested in the areas of the spread of plants in the world. Therefore, this work dealt with an environmental study of several sites in western Iraq in terms of the type of soil and the biological communities of these sites. Samples of plants belonging to different families (dicotyledons), where most of the soils were salty and sandy except the areas adjacent to the Euphrates River were pure clay soil. Haloxylon salicornicum and Zygophyllum coccenium dominated most of the sandy soil environments.

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Protective potential of selected microbial and non-microbial biostimulants against Zymoseptoria tritici leaf blotch in winter wheat as affected by the form of N supply

Göbel,

Dulal,

Sommer

et al. 2024

Front. Plant Sci.

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IntroductionThe production of high-quality food for the growing world population on the one hand and the reduction of chemical-synthetic pesticides on the other hand represents a major challenge for agriculture worldwide. The effectiveness of a combination of microbial and non-microbial biostimulants (BSs) with various nitrogen (N) forms in pathogen defense is discussed as a promising, but still poorly understood bio-based alternative for crop protection. MethodsFor this reason, nitrate and stabilized ammonium fertilizer both combined with a consortium of Pseudomonas brassicacearum, Bacillus amyloliquefaciens, and Trichoderma harzianum as soil treatment or with a mixture of seaweed extract (Ascophyllum nodosum) together with chitosan-amended micronutrient fertilizer as foliar spray application were compared under controlled greenhouse conditions. Furthermore, a combination of microbial and different non-microbial BSs (seaweed extracts + chitosan) and micronutrients with nitrate or with stabilized ammonium fertilizer was tested under field conditions to improve nutrient availability, promote plant growth, and suppress Zymoseptoria tritici (Zt) in winter wheat. Results and discussionWhile plant-protective effects against Zt by the microbial consortium application could be observed particularly under ammonium fertilization, the application of seaweed extract–chitosan mixture expressed plant defense against Zt more strongly under nitrate fertilization. In the field trial, the combination of microbial consortium with the seaweed extract–chitosan mixture together with micronutrients zinc (Zn) and manganese (Mn) showed positive effects against Zt under ammonium fertilization, associated with increased levels of defense metabolites. Furthermore, the additional input of Zn and copper (Cu) from the chitosan application improved the micronutrient status by minimizing the risk of Zn and Cu deficiency under controlled and field conditions. The use of BSs and the inoculation of Zt did not show any effects on plant growth and yield neither under controlled greenhouse conditions nor in the field. Summarized, microbial and non-microbial BSs separately applied or even combined together as one treatment did not influence plant growth or yield but made a positive contribution to an N form-dependent promotion of pathogen defense.

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Biochemical and Molecular Variations of Guaiacol Peroxidase and Total Phenols in Bacterial Wilt Pathogenesis of Solanum melongena

Cited by 3 publications

References 38 publications

The activity of β-glucosidase and guaiacol peroxidase in different genotypes of winter oilseed rape (Brassica napus L.) infected by Alternaria black spot fungi

The activity of β-glucosidase and guaiacol peroxidase in different genotypes of winter oilseed rape (Brassica napus L.) infected by Alternaria black spot fungi

A taxonomic Environmental Study of some Dicotyledon Plant Species Growing Wildly in Western Iraq

Protective potential of selected microbial and non-microbial biostimulants against Zymoseptoria tritici leaf blotch in winter wheat as affected by the form of N supply

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