The influence of soils with different textures on development, colonization capacity and interactions between Fusarium culmorum and Pseudomonas fluorescens in soil and on barley roots

Струнникова, О. К.; Vishnevskaya, N. A.; Ruchiy, Anastasia S.; Shakhnazarova, V. Yu.; Vorobyov, N. I.; Chebotar, Vladimir

doi:10.1007/s11104-014-2351-y

Cited by 18 publications

(12 citation statements)

References 22 publications

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“…ID-Foc was negatively correlated with high levels of nodosity and Pseudomonas spp. This is in accordance with previous findings reporting that Pseudomonas spp caused a significant decrease in fungal mycelium density and number of macroconidia of Fusarium culmorum population (Strunnikova et al, 2015). Pseudomonas spp has frequently been reported to be responsible for the natural suppression of Fusarium wilt disease (Mazzola, 2002).…”

Section: Discussionsupporting

confidence: 93%

Effect of Soil Nutrient and Biota Dynamics on Wilt Disease Severity in Chickpea

Moutassem¹,

Belabid²,

Bellik³

et al. 2018

Pak. J. Phytopathol.

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The present study was performed to investigate dynamic and combined effects of soil nutrients (nitrogen and phosphorus) and biotic factors on disease severity of Fusarium wilt in chickpea (AUDPC). Chickpeas were harvested, 180 days after onset of experiment, from eight natural infested soils during two years (2016 and 2017) and assessed for rhizospheric nitrogen (N-TotalR) and phosphorus availability (Olsen-P) in relation to Fusarium oxysporum f.sp ciceris inoculum density (ID-Foc), Trichoderma spp, and Pseudomonas spp as well as nitrogen (N-TotalPL) and phosphorus (P-TotalPL) plants uptake. The results showed that high level of ID-Foc significantly increased AUDPC values. It was found that ID-Foc was negatively correlated with Olsen-P and positively correlated with N-TotalR. Accordingly, AUDPC values were positively correlated with high concentrations of N-TotalR (r=0.77** in 2016, r=0.94*** in 2017) while negatively correlated with high concentrations of Olsen-P (r=-0.73** in 2016, r=-0.79** in 2017). In addition, AUDPC values showed negative interactions with N-TotalPL (r=-0.80** in 2016, r=-0.78** in 2017), whereas positive interactions with P-TotalPL (r=0.80** in 2016, r=0.87** in 2017). Moreover, AUDPC values were negatively associated with Pseudomonas spp and nodosity during the two years of study as with Trichoderma spp in 2017. The results demonstrated that wilt disease severity was strongly associated with nutrients and biological soil properties. It can be assumed that soils with highest Olsen-P levels, Trichoderma spp and Pseudomonas spp can help Fusarium wilt suppression.

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Section: Discussionsupporting

confidence: 93%

Effect of Soil Nutrient and Biota Dynamics on Wilt Disease Severity in Chickpea

Moutassem¹,

Belabid²,

Bellik³

et al. 2018

Pak. J. Phytopathol.

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“…Microbial diversity in the soil is one of the main components that determines soil health12 and is believed to be one of the main drivers in soil suppressiveness. Studies on the soil microbial communities of some crops have reported that microbial communities differed between different disease-resistant cultivars3456.…”

mentioning

confidence: 99%

Soil fungal community comparison of different mulberry genotypes and the relationship with mulberry fruit sclerotiniosis

Wen

et al. 2016

Sci Rep

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Mulberry fruit sclerotiniosis is a common soil-borne disease. We hypothesize that there is a relationship between the incidence of mulberry fruit sclerotiniosis and the soil fungal community. Therefore four mulberry genotypes with different resistance to sclerotiniosis were selected to study their soil fungal community under the same condition. A total of 6 phyla and 93 genera were identified from all mulberry samples. Genera affected by genotype, cover, and genotype by cover interactions, were 23, 20, and 11, respectively. There were 10 genera that differed between the resistant cultivars and the susceptible cultivars. In addition, the relative abundances of Humicola and Mortierella in the resistant mulberry cultivars with the cover treatments were significantly higher than that of in the susceptible cultivars. However, the relative abundance of Sclerotiniaceae and Scleromitrula that may cause sclerotiniosis in the uncover treatments were significantly higher compared with the cover treatments. The results suggested that the genotype of mulberry has a significant impact on the soil microbial community that may result in differences in resistance to sclerotiniosis, and covering could reduce the relative abundance of Sclerotiniaceae or Scleromitrula.

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“…In our earlier studies P. fluorescens strain 2137 actively suppressed the development of F. culmorum 30 both in the soil without plants and in the barley rhizosphere [17,18]. At the same time, we noted that after joint inoculation of the substrate with F. culmorum and P. fluorescens the amount of the fungus on the root surface in the beginning of barley colonization was greater than in case of inoculation with the fungus only [18][19][20]. Later the amount of F. culmorum on barley roots varied considerably both after inoculation with the fungus only and after inoculation with the fungus and the bacterium together.…”

Section: Introductionmentioning

confidence: 95%

“…Later the amount of F. culmorum on barley roots varied considerably both after inoculation with the fungus only and after inoculation with the fungus and the bacterium together. However, an increased amount of F. culmorum on the root surface in the first days of colonization in case of joint inoculation with P. fluorescens was always followed by a considerable decrease in the incidence of Fusarium root rot [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

The Role of Root Exudates of Barley Colonized by Pseudomonas fluorescens in Enhancing Root Colonization by Fusarium culmorum

Vishnevskaya

Shakhnazarova

Шапошников

et al. 2020

Plants

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The aim of this study was to find out why after joint inoculation of the substrate with the phytopathogenic fungus Fusarium culmorum and the antagonistic bacterium Pseudomonas fluorescens the amount of the fungus on the root surface in the beginning of the colonization was greater on the roots colonized by the bacterium than on control roots. This phenomenon is especially interesting because joint inoculation with P. fluorescens was always followed by a considerable decrease in the incidence of Fusarium root rot. In two experiments barley was grown in sterile vermiculite inoculated only with F. culmorum, only with P. fluorescens and jointly with the fungus and the bacterium. In the control, vermiculite was not inoculated with any microorganisms. After the removal from the vermiculite, barley plants were transferred into deionized water for the collection of root exudates. The duration of barley growth in the vermiculite and in the water was different in the two experiments. The exudates were tested for their ability to elicit chemotropism in F. culmorum and influence its growth. We did not observe any chemotropism of F. culmorum towards barley root exudates. However, the exudates of the barley colonized by the bacterium stimulated the growth of fungal germ tubes. Using an ultra-performance liquid chromatography system, we found that experimental conditions influenced the quantitative composition of the exudates. The amount of amino acids in the solution of exudates decreased considerably after a prolonged growth of control barley in water, while the presence of P. fluorescens resulted in a considerably increase of the amount of amino acids in the exudates. The exudates of barley colonized by P. fluorescens contained much more glucose, lactic acid and several amino acids than the exudates of control barley. These components are known to be necessary for the growth of F. culmorum. Their presence in the exudates of barley colonized by P. fluorescens seems to be the reason of a more active colonization by the fungus of barley roots colonized by the bacterium.

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The influence of soils with different textures on development, colonization capacity and interactions between Fusarium culmorum and Pseudomonas fluorescens in soil and on barley roots

Cited by 18 publications

References 22 publications

Effect of Soil Nutrient and Biota Dynamics on Wilt Disease Severity in Chickpea

Effect of Soil Nutrient and Biota Dynamics on Wilt Disease Severity in Chickpea

Soil fungal community comparison of different mulberry genotypes and the relationship with mulberry fruit sclerotiniosis

The Role of Root Exudates of Barley Colonized by Pseudomonas fluorescens in Enhancing Root Colonization by Fusarium culmorum

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