<i>Clonostachys rosea</i>, a potential biological control agent for<i>Rhizoctonia solani</i>AG-3 causing black scurf on potato

Salamone, Amy L.; Gundersen, Babette; Inglis, D. A.

doi:10.1080/09583157.2018.1498063

Cited by 9 publications

(6 citation statements)

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“…Clonostachys rosea— constituting 2% of the fungal isolates recovered in this study–has been reported to be a biological control agent with activity against important phytopathogens, including Sclerotinia sclerotiorum , F. graminearum , and R. solani (Gimeno et al, 2019; Wu et al, 2018; Karlsson et al, 2015; Salamone et al, 2018). However, C. rosea was also reported to be a potential pathogen, capable of causing root rot, interveinal chlorosis and marginal necrosis on soybean seedlings (Bienapfl et al, 2012).…”

Section: Discussionmentioning

confidence: 88%

Ecology and diversity of culturable fungal species associated with soybean seedling diseases in the Midwestern United States

Pimentel

Srour

Warner

et al. 2022

Journal of Applied Microbiology

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Aims To isolate and characterize fungi associated with diseased soybean seedlings in Midwestern soybean production fields and to determine the influence of environmental and edaphic factors on their incidence. Methods and Results Seedlings were collected from fields with seedling disease history in 2012 and 2013 for fungal isolation. Environmental and edaphic data associated with each field was collected. 3036 fungal isolates were obtained and assigned to 76 species. The most abundant genera recovered were Fusarium (73%) and Trichoderma (11.2%). Other genera included Mortierella, Clonostachys, Rhizoctonia, Alternaria, Mucor, Phoma, Macrophomina and Phomopsis. Most recovered species are known soybean pathogens. However, non‐pathogenic organisms were also isolated. Crop history, soil density, water source, precipitation and temperature were the main factors influencing the abundance of fungal species. Conclusion Key fungal species associated with soybean seedling diseases occurring in several US production regions were characterized. This work also identified major environment and edaphic factors affecting the abundance and occurrence of these species. Significance and Impact of the Study The identification and characterization of the main pathogens associated with seedling diseases across major soybean‐producing areas could help manage those pathogens, and devise more effective and sustainable practices to reduce the damage they cause.

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Section: Discussionmentioning

confidence: 88%

Ecology and diversity of culturable fungal species associated with soybean seedling diseases in the Midwestern United States

Pimentel

Srour

Warner

et al. 2022

Journal of Applied Microbiology

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“…The strains C. rosea MpA/MpB and Bionectria sp. 6.21 reported in [ 83 , 84 ] have antagonistic activity against phytopathogens through mycoparasitism and the production of secondary metabolites that aid in the breakdown and degradation of the cell wall. Another mycoparasite species, also found in guarana, is Simplicillium lanosoniveum S-599 which parasites fungi by secreting proteases [ 85 ].…”

Section: Resultsmentioning

confidence: 99%

Fungal Endophytic Community Associated with Guarana (Paullinia cupana Var. Sorbilis): Diversity Driver by Genotypes in the Centre of Origin

Santos

Silva

Ferreira

et al. 2020

JoF

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Guarana plant is a native of the Amazon region. Due to its high amount of caffeine and tannins, the seed has medicinal and stimulating properties. The guarana industry has grown exponentially in recent years; however, little information is available about associated mycobiota, particularly endophytic fungi. The present study aimed to compare the distribution and diversity of endophytic fungi associated with the leaves and seeds of anthracnose-resistant and susceptible guarana plants produced in Maués and Manaus, Amazonas State, Brazil. A total of 7514 endophytic fungi were isolated on Potato Dextrose Agar, Sabouraud and Czapek media, and grouped into 77 morphological groups. Overall, fungal communities in guarana leaves and seeds were mainly composed by Colletotrichum and Fusarium genera, but also by Chondrostereum, Clonostachys, Curvularia, Hypomontagnella, Lentinus, Neopestalotiopsis, Nigrospora, Peroneutypa, Phyllosticta, Simplicillium and Tinctoporellus. Obtained results indicate that some members of Colletotrichum and Fusarium genera may have experienced dysbiosis during the guarana domestication process, suggesting that some individuals may behave as latent pathogens. The susceptible guarana genotype cultivated in Manaus presented higher fungal diversity. The relative abundance of taxa and diversity among samples suggests that communities are structured by genotype and geographic location. This is the first report of mycobiota in both guarana leaves and seeds.

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“…have evolved capabilities for decomposition of organic materials, competition with other microorganisms for nutrients and space in soil and rhizosphere, and interference competition through antibiosis and mycoparasitism ( Morandi et al, 2000 ; Li et al, 2002 ; Saraiva et al, 2015 ; Sun et al, 2017 ; Fatema et al, 2018 ). Due to these properties, certain Clonostachys strains are used as efficient biological control agents against fungal plant diseases in agricultural and horticultural production systems ( Jensen et al, 2000 ; Sutton et al, 2002 ; Xue et al, 2008 ; Cota et al, 2009 ; Salamone et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Insights into the ecological generalist lifestyle of Clonostachys fungi through analysis of their predicted secretomes

Piombo

Guaschino²,

Jensen³

et al. 2023

Front. Microbiol.

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IntroductionThe fungal secretome comprise diverse proteins that are involved in various aspects of fungal lifestyles, including adaptation to ecological niches and environmental interactions. The aim of this study was to investigate the composition and activity of fungal secretomes in mycoparasitic and beneficial fungal-plant interactions.MethodsWe used six Clonostachys spp. that exhibit saprotrophic, mycotrophic and plant endophytic lifestyles. Genome-wide analyses was performed to investigate the composition, diversity, evolution and gene expression of Clonostachys secretomes in relation to their potential role in mycoparasitic and endophytic lifestyles.Results and discussionOur analyses showed that the predicted secretomes of the analyzed species comprised between 7 and 8% of the respective proteomes. Mining of transcriptome data collected during previous studies showed that 18% of the genes encoding predicted secreted proteins were upregulated during the interactions with the mycohosts Fusarium graminearum and Helminthosporium solani. Functional annotation of the predicted secretomes revealed that the most represented protease family was subclass S8A (11–14% of the total), which include members that are shown to be involved in the response to nematodes and mycohosts. Conversely, the most numerous lipases and carbohydrate-active enzyme (CAZyme) groups appeared to be potentially involved in eliciting defense responses in the plants. For example, analysis of gene family evolution identified nine CAZyme orthogroups evolving for gene gains (p ≤ 0.05), predicted to be involved in hemicellulose degradation, potentially producing plant defense-inducing oligomers. Moreover, 8–10% of the secretomes was composed of cysteine-enriched proteins, including hydrophobins, important for root colonization. Effectors were more numerous, comprising 35–37% of the secretomes, where certain members belonged to seven orthogroups evolving for gene gains and were induced during the C. rosea response to F. graminearum or H. solani. Furthermore, the considered Clonostachys spp. possessed high numbers of proteins containing Common in Fungal Extracellular Membranes (CFEM) modules, known for their role in fungal virulence. Overall, this study improves our understanding of Clonostachys spp. adaptation to diverse ecological niches and establishes a basis for future investigation aiming at sustainable biocontrol of plant diseases.

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Clonostachys rosea, a potential biological control agent forRhizoctonia solaniAG-3 causing black scurf on potato

Cited by 9 publications

References 10 publications

Ecology and diversity of culturable fungal species associated with soybean seedling diseases in the Midwestern United States

Ecology and diversity of culturable fungal species associated with soybean seedling diseases in the Midwestern United States

Fungal Endophytic Community Associated with Guarana (Paullinia cupana Var. Sorbilis): Diversity Driver by Genotypes in the Centre of Origin

Insights into the ecological generalist lifestyle of Clonostachys fungi through analysis of their predicted secretomes

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