Evaluation of the biocontrol potential of Streptomyces goshikiensis YCXU against Fusarium oxysporum f. sp. niveum

Faheem, Muhammad; Raza, Waseem; Zhong, Wei; Zhang, Nan; Shen, Qirong; Xu, Yangchun

doi:10.1016/j.biocontrol.2014.11.012

Cited by 91 publications

(62 citation statements)

References 34 publications

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“…For A. panax infected plants, ginseng black spot incidence was recorded from 9 days after A. panax inoculation. The 18 plants (3 pots) per treatment were collected to calculate the percentage of diseased plants and count disease index, using the following equations [42]:…”

Section: Resultsmentioning

confidence: 99%

Silicon application and related changes in soil bacterial community dynamics reduced ginseng black spot incidence in Panax ginseng in a short-term study

Li¹,

Wang

Liu

et al. 2019

Preprint

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Background This study analyzed the effect of silicon (Si) application on the occurrence of ginseng black spot caused by Alternaria panax . We explored the differences in soil physical and chemical factors and microbial community structure following Si application as well as the key factors that affected the occurrence of ginseng black spot in soil. Potted Panax ginseng plants were used to assess the effect of Si treatment on ginseng black spot. Soil physical and chemical properties were comprehensively analyzed. Bacterial communities were analyzed using Illumina HiSeq sequencing targeting the 16S rRNA gene. Results After inoculation with A. panax , the morbidity (and morbidity index) of ginseng with and without Si was 52% (46) and 83% (77), respectively. Soil physical and chemical analysis showed that under the ginseng black spot inoculation, bacterial communities were mainly affected by pH and available potassium, followed by ammonium nitrogen and available Si. NMDS and PLS-DA analyses and the heat maps of relative abundance revealed that Si application elevated the resistance of ginseng black spot as regulated by the abundance and diversity of bacterial flora in rhizosphere soils. Heatmap analysis at the genus level revealed that A. panax + Si inoculations significantly increased the soil community abundance of Sandaracinus , Polycyclovorans , Hirschia , Haliangium , Nitrospira , Saccharothrix , Aeromicrobium , Luteimonas , and Rubellimicrobium and led to a bacterial community structure with relative abundances that were significantly similar to that of untreated soil. Conclusions Short-term Si application also significantly regulated the structural impact on soil microorganisms caused by ginseng black spot. Our findings indicated that Si applications may possibly be used in the prevention and treatment of ginseng black spot.

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Section: Resultsmentioning

confidence: 99%

Silicon application and related changes in soil bacterial community dynamics reduced ginseng black spot incidence in Panax ginseng in a short-term study

Li¹,

Wang

Liu

et al. 2019

Preprint

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“…Besides the production of antibiotics, the production of chitinases is a desirable trait in a biocontrol agent, because these enzymes degrade chitin, provoking lysis of the phytopathogenic fungal cells (Faheem et al 2015). The production of volatile compounds, in turn, is advantageous, because those compounds reach the target pathogen over both short and long distances, leading to their inhibition (Yuan et al 2012).…”

Section: Resultsmentioning

confidence: 99%

“…Biocontrol strategies may also be integrated with other disease management approaches (Lucas 2011). Significant results in controlling fusariosis have been achieved with the use of rhizobacteria (Faheem et al 2015). However, one of the factors limiting the use of biological control is the low survival and multiplication of biocontrol agents in field conditions (Lucas 2011).…”

Section: Introductionmentioning

confidence: 99%

Activity of rhizobacteria antagonistic to Fusarium oxysporum f. sp. passiflorae in soils cultivated with monocotyledonous plants1

Santos

Macamo

Haddad

et al. 2017

Pesqui. Agropecu. Trop.

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In spite of the importance of passion fruit cultivation in Brazil, this activity has been forced to be itinerant, due to the occurrence of diseases in producing regions, in particular fusariosis. The use of rhizobacteria is a potential control alternative, but other improvements are necessary to guarantee the activity of these bacteria in the field. This study aimed at evaluating the influence of three monocotyledonous groups on the activity of rhizobacteria antagonistic to Fusarium oxysporum f. sp. passiflorae (Fop). Rhizobacteria were isolated from passion fruit plants and tested for the production of diffusible and volatile compounds, as well as chitinases that inhibit Fop. From a total of 167 isolates, two produced volatile compounds, 21 diffusible compounds and 32 chitinases. Three compatible combinations of isolates that had at least two action mechanisms against Fop and could grow in a wide pH range were applied in pots with sorghum, millet or maize, in addition to pots left fallow (control), in a greenhouse. The microbial biomass carbon, soil basal respiration, metabolic quotient and activity of the acid phosphatase enzyme were evaluated. The interaction between the cultivated species and rhizobacterial combinations was significant only for the metabolic quotient, whose values tended to be higher under millet cultivation in combination 3 (R77/R95/R104/R120), the most metabolically diversified one. The highest activity of acid phosphatase was also obtained with millet. The results for enzymatic activity and metabolic quotient indicate that millet provides a greater activity of the antagonists in the soil.

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“…The T. asperellum M45a conidia suspension was prepared according to Zhang et al, (2013b), and the determined concentration was 7.5 × 10 6 colony-forming units (cfu)/ml. The watermelon cultivar 'Zaojia 8424', which is susceptible to FON, was used for investigation of FW disease incidence (Faheem et al, 2015) and length of watermelon vine.…”

Section: Trichoderma Strains and Plant Materialsmentioning

confidence: 99%

Soil inoculation of Trichoderma asperellum M45a regulates rhizosphere microbes and triggers watermelon resistance to Fusarium wilt

Zhang

Cheng

Xiao

et al. 2020

Preprint

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Abstract Fusarium wilt (FW) caused by Fusarium oxysporum f. sp. niveum (FON) is a soil-borne disease that seriously limits watermelon production. In the present study, the Trichoderma asperellum (T. asperellum) M45a was shown to be an effective biocontrol agent against Fusarium wilt (FW). In a pot experiment, the application of 105 cfu/g of T. asperellum M45a granules had better control effect on FW at the blooming period (up to 67.44%) from soils subjected to five years of continuous cropping with watermelon, while the average length of watermelon vine was also significantly improved(P < 0.05). Additionally, the acid phosphatase (ACP), cellulase (CL), catalase (CAT) and sucrase (SC) activities in the M45a-inoculation group were significantly higher than in the control (CK) group, and the soil nutrients (total N, NO3-N, and available P) transformation was significantly increased. Moreover, T. asperellum M45a inoculation reduced fungal diversity and increased bacterial diversity, especially enhancing the relative abundance of PGPR (plant growth promoting rhizobacteria), such as Trichoderma, Sphingomonas, Pseudomonas, Actinomadura and Rhodanobacter. Through functional prediction, the relative abundance of Ectomycorrhizal, Endophyte, Animal pathotroph and saprotroph in fungal community was determined to be significantly lower than observed in the M45a-treated soil. Correlation analysis revealed that Sphingomonas, Pseudomonas and Trichoderma had the most differences in microorganisms abundance, positively correlated with ACP, CL, CAT and SC. These findings will provide ecological fungicide advice for microecological control of FW in continuous cropping watermelon.

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Evaluation of the biocontrol potential of Streptomyces goshikiensis YCXU against Fusarium oxysporum f. sp. niveum

Cited by 91 publications

References 34 publications

Silicon application and related changes in soil bacterial community dynamics reduced ginseng black spot incidence in Panax ginseng in a short-term study

Silicon application and related changes in soil bacterial community dynamics reduced ginseng black spot incidence in Panax ginseng in a short-term study

Activity of rhizobacteria antagonistic to Fusarium oxysporum f. sp. passiflorae in soils cultivated with monocotyledonous plants1

Soil inoculation of Trichoderma asperellum M45a regulates rhizosphere microbes and triggers watermelon resistance to Fusarium wilt

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