Mycelial Interconnectedness

Rayner, A. D. M.; Griffith, G. S.; Ainsworth, A. Martyn

doi:10.1007/978-0-585-27576-5_2

Cited by 53 publications

(69 citation statements)

References 56 publications

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“…Non-insulated biomass represents the active hyphal tips of a colony where the rate of uptake is high. Insulated biomass represents the aged part of the colony where the resource has already been exploited and this notion is consistent with Rayner et al (1995). Mobile biomass is the fraction of the fungal colony that is able to be relocated within the mycelial network; immobile biomass is structural, i.e.…”

Section: Introductionsupporting

confidence: 49%

Modelling interactions in fungi

Falconer

Bown

White

et al. 2007

J. R. Soc. Interface.

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Indeterminate organisms have received comparatively little attention in theoretical ecology and still there is much to be understood about the origins and consequences of community structure. The fungi comprise an entire kingdom of life and epitomize the indeterminate growth form. While interactions play a significant role in shaping the community structure of indeterminate organisms, to date most of our knowledge relating to fungi comes from observing interaction outcomes between two species in two-dimensional arena experiments. Interactions in the natural environment are more complex and further insight will benefit from a closer integration of theory and experiment. This requires a modelling framework capable of linking genotype and environment to community structure and function. Towards this, we present a theoretical model that replicates observed interaction outcomes between fungal colonies. The hypotheses underlying the model propose that interaction outcome is an emergent consequence of simple and highly localized processes governing rates of uptake and remobilization of resources, the metabolic cost of production of antagonistic compounds and non-localized transport of internal resources. The model may be used to study systems of many interacting colonies and so provides a platform upon which the links between individual-scale behaviour and community-scale function in complex environments can be built.

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Section: Introductionsupporting

confidence: 49%

Modelling interactions in fungi

Falconer

Bown

White

et al. 2007

J. R. Soc. Interface.

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“…Mycologists have long recognized the importance of hyphal branching in the development of the fungal colony (Carlile 1995, Rayner et al 1995. So too have industrial microbiologists, who are well aware that branching is a critical determinant of colony morphology that ultimately affects the yield of fungal fermentations (e.g.…”

Section: Future Questionsmentioning

confidence: 99%

“…The success of fungi in colonizing terrestrial ecosystems can be largely attributed to their ability to form hyphae and mycelia (Rayner et al 1995). Hyphae are highly polarized cylinders that usually grow by apical extension at rates that can approach $1 mm/s (Seiler and Plamann 2003).…”

Section: Introductionmentioning

confidence: 99%

Branching of fungal hyphae: regulation, mechanisms and comparison with other branching systems

2008

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"Branching of fungal hyphae: regulation, mechanisms and comparison with other branching systems" (2008 Abstract: The ability of rapidly growing hyphae to generate new polarity axes that result in the formation of a branch represents one of the most important yet least understood aspects of fungal cell biology. Branching is central to the development of mycelial colonies and also appears to play a key role in fungal interactions with other organisms. This review presents a description of the two major patterns of hyphal branching, apical and lateral, and highlights the roles of internal and external factors in the induction of branch formation. In addition, potential mechanisms underlying branch site selection are outlined, and the possible roles of multiple signaling pathways (i.e., G protein alpha, Cdc42, NDR kinases) and subcellular structures (i.e., the Spitzenkorper, septins) are discussed. Finally, other forms of branching in the plant and animal kingdoms are briefly summarized and compared to hyphal branching.

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“…In one type of fungivory the consumer grazes on fungal mycelium, a structure that is capable of indeterminate growth and of altering its biomass and nutrient distribution in response to stressful conditions (Rayner et al, 1985(Rayner et al, , 1994. The second type of fungivory is the consumption of fully determined structures such as fruit bodies, the structures in which sexual spores are produced.…”

Section: mentioning

confidence: 99%

Effects of fungivory by two specialist ciid beetles (Octotemnus glabriculus and Cis boleti) on the reproductive fitness of their host fungus, Coriolus versicolor

2000

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On the basis of the evidence that insect fungivory has the potential to affect fungal reproductive fitness, we investigated the effects of two specialist ciid beetles (Octotemnus glabriculus and Cis boleti) on the reproductive potential of their host fungus, Coriolus versicolor. We found, from field data, a negative correlation between the number of individuals of O. glabriculus inhabiting C. versicolor fruit bodies and the percentage of the fungal spore‐producing surface (hymenium) that was functional. By contrast, the number of C. boleti inhabiting C. versicolor fruit bodies did not correlate with the percentage of functional hymenium. Experimentally, O. glabriculus and C. boleti reduced the reproductive potential of C. versicolor by 58% and 30%, respectively, whereas the combined trophic activity of both beetles caused a reduction of 64%. This latter effect was not significantly different from that caused by O. glabriculus alone. These findings disagree with previous assertions that insect fungivory on fruit bodies has only neutral effects on fungal fitness. We conclude that in the short‐term, fungivory by ciids significantly decreases the area of functional hymenium of C. versicolor and is likely to reduce fungal reproductive fitness. Within this perspective the evolution of certain fungal characteristics (i.e. chemical composition, consistency and phenology) can be interpreted as being driven by fungivory.

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Mycelial Interconnectedness

Cited by 53 publications

References 56 publications

Modelling interactions in fungi

Modelling interactions in fungi

Branching of fungal hyphae: regulation, mechanisms and comparison with other branching systems

Effects of fungivory by two specialist ciid beetles (Octotemnus glabriculus and Cis boleti) on the reproductive fitness of their host fungus, Coriolus versicolor

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