Biocontrol efficiency of Fusarium wilt diseases by a root-colonizing fungus<i>Penicillium</i>sp.

Alam, Syed Sartaj; Sakamoto, Kazunori; Inubushi, Kazuyuki

doi:10.1080/00380768.2011.564996

Cited by 37 publications

(13 citation statements)

References 24 publications

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“…Penicillium sp produces certain chemicals like grise of ulvin, dechlorogrise of ulvin, curvulinic acid and many others that inhibits the growth of pathogenic fungi and does not allow them to grow well (Nicolitte et al 2007). Similar results were also recorded with Alam et al (2011). T. harzianum and Bacillus subtilis significantly decreased root rot disease severity by restricting the growth of F. solani (El-Mohamedy, 2009).…”

Section: Resultssupporting

confidence: 83%

Evaluation of Penicillium sp. Eu0013 for management of Root rot disease of Okra

Ullah¹,

Syed²,

Abbas³

et al. 2015

Int. J. Biosci.

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In this study the interactive effect of a plant growth promoting fungus (PGPF) Penicillium sp. EU0013 was used as biocontrol agent using seed priming and soil drench method against Fusarium solani which is causal agent of root rot of Okra. Different conidial concentrations of EU0013 (1× 10 5 , 1 ×10 6 and 1× 10 7 conidia mL -1 ) were prepared and applied under field condition by using the above mentioned methods. Under field condition data was recorded on disease severity (%) and seedling mortality (%),of fungal species in the okra rhizosphere.Results showed that Penicillium sp. EU0013 applied at 1×10 7 conidia mL -1 as seed priming significantly reduced disease severity 22.17% and seedling mortality by 13.8%, in okra rhizosphere. It can be concluded that root rot in okra caused by F. solani was efficiently controlled by the application of plant growth promoting fungus (PGPF) Penicillium sp. EU0013 as biocontrol agent using seed priming method as compared to soil drench method.

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Section: Resultssupporting

confidence: 83%

Evaluation of Penicillium sp. Eu0013 for management of Root rot disease of Okra

Ullah¹,

Syed²,

Abbas³

et al. 2015

Int. J. Biosci.

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“…Cha et al ( 7 ) reported the usefulness of a combination of molecular and culture techniques to reveal the microbial and biochemical bases of suppressive effects in protective soil against strawberry Fusarium wilt. Regarding antagonism, Alam et al ( 1 ) found that a fungal strain exerting a plant growth-promoting effect also exhibited antagonism against Fusarium wilt disease and suppressed the incidence of the disease following its inoculation into soil. Hashimoto et al ( 9 ) developed a microbial biosensor as a simple and rapid diagnostic tool for soil-borne diseases and applied it to an estimation of the adaptation of antagonists to disease-infested soil.…”

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confidence: 99%

An Evaluation Method for the Suppression of Pathogenic <i>Fusarium oxysporum</i> by Soil Microorganisms Using the Dilution Plate Technique

Mitsuboshi

Kioka

Noguchi³

et al. 2016

Microb. Environ.

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Soil-borne diseases caused by pathogenic microorganisms are one of the main factors responsible for the decline in crop yields in farmlands. Pathogenic Fusarium oxysporum causes serious damage to various crops, and, thus, a feasible diagnostic method for soil-borne diseases is required. We herein examined a simple method to evaluate the suppressiveness of soil microorganisms against a pathogen by co-cultivating indigenous soil microorganisms and a pathogenic fungus (F. oxysporum f. sp. spinaciae). We inoculated F. oxysporum onto the center of agar medium plates mixed with a dilution series of a suspension of organic fertilizers or soil. After an approximately one-week cultivation, the growth degree of F. oxysporum was estimated based on the size of the colonies that formed on the plates. The growth degree of F. oxysporum significantly differed among the organic fertilizers tested, indicating the usefulness of the method for evaluating suppressiveness by organic fertilizers. Differences in the growth degrees of F. oxysporum were associated with the incidence of disease in spinach on soil treated with organic fertilizers and inoculated with a pathogenic F. oxysporum strain. These results suggested that this method provides some useful information on the suppressiveness of organic fertilizers and soil against Fusarium wilt.

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“…Penicillium species are antagonists of plant pathogens, inducing resistance 89 , for example, by the production of antibiotic compounds 90 or establishment of mycoparasitic interactions 91 . Antagonistic relationships between beneficial Penicillium species and pathogenic Fusarium species have been demonstrated in numerous studies, including in oil palms 92–94 . Penicillium species are also present as endophytes in the foliage and sapwood of rubber trees 95 and, thereby, can contribute to limiting pathogen damage in tropical trees.…”

Section: Discussionmentioning

confidence: 99%

Intensive tropical land use massively shifts soil fungal communities

Brinkmann

Schneider

Sahner

et al. 2019

Sci Rep

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soil fungi are key players in nutrient cycles as decomposers, mutualists and pathogens, but the impact of tropical rain forest transformation into rubber or oil palm plantations on fungal community structures and their ecological functions are unknown. We hypothesized that increasing land use intensity and habitat loss due to the replacement of the hyperdiverse forest flora by nonendemic cash crops drives a drastic loss of diversity of soil fungal taxa and impairs the ecological soil functions. Unexpectedly, rain forest conversion was not associated with strong diversity loss but with massive shifts in soil fungal community composition. Fungal communities clustered according to land use system and loss of plant species. Network analysis revealed characteristic fungal genera significantly associated with different land use systems. Shifts in soil fungal community structure were particularly distinct among different trophic groups, with substantial decreases in symbiotrophic fungi and increases in saprotrophic and pathotrophic fungi in oil palm and rubber plantations in comparison with rain forests. In conclusion, conversion of rain forests and current land use systems restructure soil fungal communities towards enhanced pathogen pressure and, thus, threaten ecosystem health functions.Tropical rain forests are the planet's most species-rich biomes 1 . In the past two decades, tropical rain forests in many parts of the world have been rapidly converted to monospecific plantations 2 . As a result, deforestation and human land use have irretrievably destroyed large areas of unique rain forests and enforced biodiversity loss 3,4 . High plant diversities are associated with active, abundant and diverse fungal communities 5-7 . Plant diversity was, therefore, predicted to be a strong driver of fungal species richness in soils of tropical rain forests 7-9 . However, the consequences of rain forest transformation into agricultural land for soil fungal diversity and the ecological functions of these fungi are not well understood.Soil fungi are integral components of ecosystems, driving nutrient cycling as decomposers 10-13 , regulating species composition as pathogens 14 and providing mutualistic benefits as symbiotrophs, thereby playing a key role in biogeochemical processes 15,16 and in soil health 17,18 . Because of their important functions, the impact of deforestation and land use intensification on soil fungal communities in the tropics is receiving increasing attention. To date, only a few studies have used next-generation sequencing methods to characterize soil fungal communities after the conversion of rain forests into agricultural land [19][20][21][22] . Those studies focused mainly on distinct fungal groups such as mycorrhizae and the turnover of their community structure in response to distinct land use systems such as the conversion of rain forest into pasture or cash crop plantations with oil palms or rubber trees [19][20][21][22] . However, approaches linking land use systems or aboveground vegetation divers...

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Biocontrol efficiency of Fusarium wilt diseases by a root-colonizing fungusPenicilliumsp.

Cited by 37 publications

References 24 publications

Evaluation of Penicillium sp. Eu0013 for management of Root rot disease of Okra

Evaluation of Penicillium sp. Eu0013 for management of Root rot disease of Okra

An Evaluation Method for the Suppression of Pathogenic <i>Fusarium oxysporum</i> by Soil Microorganisms Using the Dilution Plate Technique

Intensive tropical land use massively shifts soil fungal communities

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