Influence Of Endophytic And Saprotrophic Penicillium Funiculosum Strains On Resistance Of Glycine Max L. Under Salt Stress

Yurieva, Olga; Syrchin, S.O.; Nakonechna, L.T.; Kurchenko, I.M.

doi:10.31548/dopovidi2018.02.002

Cited by 4 publications

(1 citation statement)

References 20 publications

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“…Hamayun et al (2010) revealed that endophytic could reduce the negative eff ects of salinity and progress plant germination, emergence, growth, and biomass production, by synthesizing phytohormones (gibberellins: GA1, GA4, GA8 and GA9, indole-acetic acid: IAA and abscissic acid: ABA). Also, Yurieva et al (2018) reported that Penicillium funiculosum stimulated soybean growth and improved the dry root biomass. Furthermore, Ahmad et al (2015) showed that the increase in plant growth and biomass production after Trichoderma spp.…”

Section: Resultsmentioning

confidence: 99%

Unraveling the role of endophytic fungi in barley salt-stress tolerance

Kouadria

Bouzouina

Lotmani

et al. 2023

Hellenic Plant Protection Journal

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Summary Salinity is an agricultural and eco-environmental problem worldwide that decreases crop production. Endophytic fungi have been shown to improve plant tolerance to stressful conditions. The purpose of the paper is to examine the efficiency of Embellisia phragmospora, Fusarium equiseti and Fusarium graminearum to improve tolerance of pot-grown barley in greenhouse under different levels of soil salinity (2.5, 8 and 14dS/m) by estimating growth, relative water content, mineral nutrition, photosynthetic pigments biosynthesis, proline and sugar levels. Results showed that E. phragmospora increased barley emergence rate to 66.7% compared to 60% recorded by non-colonized barley under 14dS/m soil salinity. The tested endophytes increased barley root length, shoot and root dry weights under salt stress. Endophytic fungi reduced Na+ accumulation and improved K+ uptake in barely under salinity. Fusarium equiseti and F. graminearum-inoculated barley increased proline content under salinity. Fusarium graminearum-colonized barley showed the highest sugar content under salt stress. Our findings demonstrate the feasibility of endophytic fungi bio-inoculation in improvement of barley tolerance to salt stress, which qualify them to be a potent tool to provide substantial benefits to crops for sustainable agriculture.

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Section: Resultsmentioning

confidence: 99%

Unraveling the role of endophytic fungi in barley salt-stress tolerance

Kouadria

Bouzouina

Lotmani

et al. 2023

Hellenic Plant Protection Journal

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Endophytic micromycetes: biodiversity, physiological and biochemical features, interaction with plants

Kurchenko¹,

Yurieva²,

Syrchin³

et al. 2023

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The monograph is the first publication in Ukraine devoted to the study of endophytic microscopic fungi. The book contains 14 chapters, which can be divided into 5 main sections. The first section (chapters 1-5) covers an overview of the history of research and the definition of the phenomenon of endophytism, provides a general description of endophytic fungi, their classification and distribution in different biomes. Section 5 is devoted to the study of the species composition of the endophytic mycobiota of sphagnum bogs in Ukrainian Polissya. The second section (Сhapter 6) is devoted to the growth parameters of micromycetes isolated from different ecological niches under different conditions of cultivation on media with different carbon sources. The third section (Сhapter 7) contains data on the enzymatic activities of endophytic fungi, polyphenol oxidase, catalase, and hydrolases that transform plant polymers. The fourth section (Сhapters 8-11) contains data on the ability of endophytes to produce toxins, phytohormonal compounds, and biologically active metabolites with antibiotic activity. The fifth section (chapters 12-14) is devoted to the interaction of endophytic fungi with microorganisms and plants, in particular, the exhibition of antifungal, antibacterial and phytotoxic activity. Particular attention is paid to the study of phyto-stimulatory activity of endophytes and their ability to help plants overcome abiotic stresses through the synthesis of various classes of phytohormonal compounds. Particular attention is paid to the study of phyto-stimulatory activity of endophytes and their ability to contribute to the overcoming of abiotic stresses by plants through the synthesis of various classes of phytohormonal compounds. For the first time, a comparison of physiological and biochemical characteristics of fungi from different econiches within the same species (endophytes, phytopathogens, saprotrophs) was performed. Chapter 14 presents modern concepts about the mechanisms of interaction between endophytic fungi and plants: from parasitism to mutualism. For microbiologists, mycologists, ecologists, biotechnologists, plant physiologists, phytopathologists, as well as students, postgraduates and teachers of higher education institutions of biological and agricultural profiles.

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Total Phenolic and Flavonoid Content, Antioxidant Activity of Talaromyces funiculosus Strains

Syrchin¹,

Yurieva²,

Nakonechna³

et al. 2020

Mikrobiol. Z.

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Microscopic fungi synthesize a wide range of phenolic compounds that play an important role in cell wall formation, as well as perform signaling and protective functions. One of the important functions of phenolic compounds, primarily polyphenols, is antioxidant activity. The most active polyphenols are flavonoids, their synthesis in microscopic fungi has not been studied enough. The aim of the study was to determine the total phenols and flavonoids content and antioxidant activity of Talaromyces funiculosus strains isolated from different econiches. Methods. 20 strains of the microscopic fungus T. funiculosus – 10 endophytes and 10 saprotrophs were used in the experiments. Cultivation of filamentous fungi was performed under submerged conditions with shaking at 210–230 rpm in Erlenmeyer flasks containing 200 ml of Czapek liquid medium at a temperature 26±2°C for 6 days. The biomass of the strains was filtered, dried at 70°C and extracted with 95% methanol (1:50 w/v). The total phenols content was determined using Folin-Ciocalteu reagent by the method of Arora, Chandra (2010) with some modifications and expressed as mg of gallic acid equivalents (GAE) per g of dry weight mycelium. Flavonoids in each extract were determined spectrophotometrically with AlCl3 and expressed as mg of quercetin equivalents (QE) per g of dry weight mycelium. Antioxidant activity of methanolic extracts was measured as radical scavenging activity by the percentage inhibition of the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical. Results. The total phenolic content of methanolic extracts of T. funiculosus strains ranged from 0.12±0.007 to 1.97±0.150 mg GAE/g. The highest level of phenolic compounds was found for saprotroph UCM F-16790 (1.97±0.150) and endophyte UCM F-16795 (1.71±0.137 mg GAE/g). The flavonoid content in methanolic extracts of the studied strains varied in the range of 0.02±0.001–0.39±0.041 mg QE/g. All studied strains of T. funiculosus showed antioxidant activity against DPPH radical, which was 12.19±2.34–60.37±7.24% inhibition. Statistical analysis revealed a strong positive correlation between the total phenols and flavonoids content (Pearson’s correlation coefficient r=0.92); between antioxidant activity, phenols (r=0.82) and flavonoids (r=0.81) content in methanol extracts of T. funiculosus strains. The total content of phenols and flavonoids and antioxidant activity did not depend on the trophic group of the studied strains. The moderate correlation between flavonoids content and antioxidant activity of methanolic extracts of endophytic T. funiculosus strains (r=0.46) may be related to their ability to synthesize a wider range of polyphenolic compounds with antioxidant activity. Conclusions. The studied T. funiculosus strains have the ability to synthesize phenolic compounds and flavonoids in different concentrations. Correlation analysis revealed strong correlations between total phenolic and flavonoid contents and antioxidant activity. The reason for phenomenon of moderate correlation (r=0.46) between flavonoid content and antioxidant activity in endophytic strains may be the synthesis of other compounds by individual strains. The determination of individual components synthesized by the most active strains is of scientific interest for further study. T. funiculosus UСM F-16795 and UСM F-16790 strains had a quite high level of phenols and flavonoids. Obtained data may be promising for the search for phenolic compounds with antioxidant properties to increase plant resistance to negative impacts of environmental stress factors.

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Influence Of Endophytic And Saprotrophic Penicillium Funiculosum Strains On Resistance Of Glycine Max L. Under Salt Stress

Cited by 4 publications

References 20 publications

Unraveling the role of endophytic fungi in barley salt-stress tolerance

Unraveling the role of endophytic fungi in barley salt-stress tolerance

Endophytic micromycetes: biodiversity, physiological and biochemical features, interaction with plants

Total Phenolic and Flavonoid Content, Antioxidant Activity of Talaromyces funiculosus Strains

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