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Fungal network responses to grazing

Boddy, Lynne ORCID:, Wood, Jonathan, Redman, Emily Clare, Hynes, Juliet and Fricker, Mark 2010. Fungal network responses to grazing. Fungal Genetics and Biology 47 (6) , pp. 522-530. 10.1016/j.fgb.2010.01.006

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Mycelial networks operate on scales from microscopic to many m2 and naturally persist for extended periods. As fungi exhibit highly adaptive development, it is important to test behavioural responses on natural substrata with realistic nutrient levels across a range of spatial scales and extended time periods. Here we quantified network responses over 7.5 months in large (57 × 57 cm) microcosms to test whether grazing shifts the network to a more resilient architecture. Resource limitation constrained any ability to respond at all, with both grazed and ungrazed networks gradually thinning out over time. Added resources sustained further exploratory growth, but only transiently increased cross-connectivity and network resilience, when tested by simulated damage in silico. Grazed networks were initially weaker and emergence of new exploratory growth was curtailed. However, increased interstitial proliferation led to new cross-links, consolidating the existing mycelial network and increasing the resilience of the network to further attack.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Subjects: Q Science > QR Microbiology
Uncontrolled Keywords: adaptive network; Collembola; Fungal mycelium; fungal stem cells; fractal behaviour; network resilience; Phanerochaete velutina; Saprotrophic basidiomycetes
Publisher: Elsevier
ISSN: 1087-1845
Date of Acceptance: 25 January 2010
Last Modified: 19 Oct 2022 08:55

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