Interaction dynamics between saprobic lignicolous fungi and Armillaria in controlled environments: Exploring the potential for competitive exclusion of Armillaria on peach

Cox, Kerik D.; Scherm, H.

doi:10.1016/j.biocontrol.2006.01.012

Cited by 19 publications

(13 citation statements)

References 36 publications

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“…P.Kumm., a wood-rotting basidiomycete, has demonstrated the potential to competitively displace A. solidipes (as A. ostoyae) after stump inoculations [59]. Similarly, five species of saprobic lignicolous fungi (H. under controlled inoculation studies [60]. Based on stump surveys in southeastern Alaska, Shaw [61] hypothesized that colonization by a weakly pathogenic Armillaria spp.…”

Section: Discussionmentioning

confidence: 99%

Armillaria altimontana Is Associated with Healthy Western White Pine (Pinus monticola): Potential in Situ Biological Control of the Armillaria Root Disease Pathogen, A. solidipes

Warwell

McDonald

Hanna

et al. 2019

Forests

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Research Highlights: Two genets of Armillaria altimontana Brazee, B. Ortiz, Banik, and D.L. Lindner and five genets of Armillaria solidipes Peck (as A. ostoyae [Romagnesi] Herink) were identified and spatially mapped within a 16-year-old western white pine (Pinus monticola Doug.) plantation, which demonstrated distinct spatial distribution and interspecific associations. Background and Objectives: A. solidipes and A. altimontana frequently co-occur within inland western regions of the contiguous USA. While A. solidipes is well-known as a virulent primary pathogen that causes root disease on diverse conifers, little has been documented on the impact of A. altimontana or its interaction with A. solidipes on growth, survival, and the Armillaria root disease of conifers. Materials and Methods: In 1971, a provenance planting of P. monticola spanning 0.8 ha was established at the Priest River Experimental Forest in northern Idaho, USA. In 1987, 2076 living or recently dead trees were measured and surveyed for Armillaria spp. to describe the demography and to assess the potential influences of Armillaria spp. on growth, survival, and the Armillaria root disease among the study trees. Results: Among the study trees, 54.9% were associated with Armillaria spp. The genets of A. altimontana and A. solidipes comprised 82.7% and 17.3% of the sampled isolates (n = 1221) from the study plot, respectively. The mapped distributions showed a wide, often noncontiguous, spatial span of individual Armillaria genets. Furthermore, A. solidipes was found to be uncommon in areas dominated by A. altimontana. The trees colonized by A. solidipes were associated with a lower tree growth/survival and a substantially higher incidence of root disease than trees colonized only by A. altimontana or trees with no colonization by Armillaria spp. Conclusions: The results demonstrate that A. altimontana was not harmful to P. monticola within the northern Idaho planting. In addition, the on-site, species-distribution patterns suggest that A. altimontana acts as a long-term, in situ biological control of A. solidipes. The interactions between these two Armillaria species appear critical to understanding the Armillaria root disease in this region.

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Section: Discussionmentioning

confidence: 99%

Armillaria altimontana Is Associated with Healthy Western White Pine (Pinus monticola): Potential in Situ Biological Control of the Armillaria Root Disease Pathogen, A. solidipes

Warwell

McDonald

Hanna

et al. 2019

Forests

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“…The potential use of nonpathogenic lignolytic basidiomycetes represents an attractive alternative to chemical-based options (Holdenreider and Greig 1998;Paterson et al 2000;Cox and Scherm 2006).…”

Section: Biological Toolsmentioning

confidence: 99%

“…Biological control of root-rot fungi can be afforded by the use of non-pathogenic fungi that either: (i) break down woody debris, (ii) occupy the same resource as the pathogen, (iii) compete for nutrients, (iv) produce inhibitory compounds or (v) mycoparasitize the pathogen (Schoeman et al 1999;Alabouvette et al 2006). The potential use of nonpathogenic lignolytic basidiomycetes represents an attractive alternative to chemical-based options (Holdenreider and Greig 1998;Paterson et al 2000;Cox and Scherm 2006).…”

Section: Biological Toolsmentioning

confidence: 99%

Management of fungal root‐rot pathogens in tropicalAcacia mangiumplantations

et al. 2008

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Acacia mangium is a fast-growing tree species. It is mainly planted in large monocultures for pulpwood in South-East Asia. Root rot has become the most economically damaging disease of this species with high tree mortality rates observed during second and third rotations. Two main types of root rots have been found in A. mangium, viz. brown root-rot and red-root disease caused by Phellinus spp. and Ganoderma spp., respectively. To assess the future management options for root rot of A. mangium, we review past and current disease-management strategies for root rot in different temperate and tropical industrial tree crops. The efficacies of a wide range of silvicultural, chemical and biological options are detailed, and their potential utilization in managing root rot of A. mangium is discussed. We conclude that the current gaps in knowledge regarding identification, biology and disease epidemiology of the root-rot pathogens will need to be addressed so that effective management options can be developed.

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“…Saprobic wood decay fungi (e.g. Ganoderma lucidum ) have been found to overtake Armillaria mycelium in wood, suggesting that the inoculation of planted hosts scheduled for eventual removal may bring about some level of eradication of the pathogen (Chapman and Ziao, 2000; Cox and Scherm, 2006; Pearce et al ., 1995).…”

Section: Epidemiology and Control Of Armillaria Root Diseasementioning

confidence: 99%

Secrets of the subterranean pathosystem of Armillaria

Baumgartner

Coetzee

Hoffmeister

2011

Molecular Plant Pathology

163

174

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Armillaria root disease affects fruit and nut crops, timber trees and ornamentals in boreal, temperate and tropical regions of the world. The causal pathogens are members of the genus Armillaria (Basidiomycota, Physalacriaceae). This review summarizes the state of knowledge and highlights recent advances in Armillaria research. Taxonomy:Armillaria includes more than 40 morphological species. However, the identification and delineation of species on the basis of morphological characters are problematic, resulting in many species being undetected. Implementation of the biological species' concept and DNA sequence comparisons in the contemporary taxonomy of Armillaria have led to the discovery of a number of new species that are not linked to described morphological species.Host range: Armillaria exhibits a range of symbioses with both plants and fungi. As plant pathogens, Armillaria species have broad host ranges, infecting mostly woody species. Armillaria can also colonize orchids Galeola and Gastrodia but, in this case, the fungus is the host and the plant is the parasite. Similar to its contrasting relationships with plants, Armillaria acts as either host or parasite in its interactions with other fungi.Disease control: Recent research on post-infection controls has revealed promising alternatives to the former pre-plant eradication attempts with soil fumigants, which are now being regulated more heavily or banned outright because of their negative effects on the environment. New study tools for genetic manipulation of the pathogen and characterization of the molecular basis of the host response will greatly advance the development of resistant rootstocks in a new stage of research. The depth of the research, regardless of whether traditional or genomic approaches are used, will depend on a clear understanding of where the different propagules of Armillaria attack a root system, which of the pathogen's diverse biolymer-degrading enzymes and secondary metabolites facilitate infection, and how the course of infection differs between resistant and susceptible hosts.

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Interaction dynamics between saprobic lignicolous fungi and Armillaria in controlled environments: Exploring the potential for competitive exclusion of Armillaria on peach

Cited by 19 publications

References 36 publications

Armillaria altimontana Is Associated with Healthy Western White Pine (Pinus monticola): Potential in Situ Biological Control of the Armillaria Root Disease Pathogen, A. solidipes

Armillaria altimontana Is Associated with Healthy Western White Pine (Pinus monticola): Potential in Situ Biological Control of the Armillaria Root Disease Pathogen, A. solidipes

Management of fungal root‐rot pathogens in tropicalAcacia mangiumplantations

Secrets of the subterranean pathosystem of Armillaria

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