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Hyphal exploration ...
Hyphal exploration strategies and habitat modification of an arbuscular mycorrhizal fungus in microengineered soil chips
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- Hammer, Edith C. (author)
- Lund University,Lunds universitet,Biologiska institutionen,Naturvetenskapliga fakulteten,Department of Biology,Faculty of Science
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- Arellano-Caicedo, Carlos (author)
- Lund University
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- Mafla-Endara, Paola Micaela (author)
- Lund University,Lunds universitet,Biologiska institutionen,Naturvetenskapliga fakulteten,Department of Biology,Faculty of Science
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- Kiers, E. Toby (author)
- Vrije Universiteit Amsterdam
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- Shimizu, Tom (author)
- FOM Institute for Atomic and Molecular Physics
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- Ohlsson, Pelle (author)
- Lund University,Lunds universitet,Avdelningen för Biomedicinsk teknik,Institutionen för biomedicinsk teknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Biomedical Engineering,Departments at LTH,Faculty of Engineering, LTH
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- Aleklett, Kristin (author)
- Lund University,Lunds universitet,Biologiska institutionen,Naturvetenskapliga fakulteten,Department of Biology,Faculty of Science
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(creator_code:org_t)
- 2024
- 2024
- English 10 s.
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In: Fungal Ecology. - 1754-5048. ; 67
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Abstract
Subject headings
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- Arbuscular mycorrhizal fungi (AMF) are considered ecosystem engineers, but the interactions of their mycelium with their immediate surroundings are largely unknown. In this study, we used microfluidic chips, simulating artificial soil structures, to study foraging strategies and habitat modification of Rhizophagus irregularis symbiotically associated to carrot roots. AMF hyphae foraged over long distances in nutrient-void spaces, preferred straight over tortuous passages, anastomosed and showed strong inducement of branching when encountering obstacles. We measured bi-directional transport of cellular content inside active hyphae and documented strategic allocation of biomass within the mycelium via cytoplasm retraction from inefficient paths. R. irregularis modified pore-spaces in the chips by clogging pores with irregularly shaped spores. We suggest that studying AMF hyphal behaviour in spatial settings can explain phenomena reported at bulk scale such as AMF modification of water retention in soils. The use of microfluidic soil chips in AMF research opens up novel opportunities to study their ecophysiology and interactions with both biotic and abiotic factors.
Subject headings
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Markvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Soil Science (hsv//eng)
Keyword
- AMF
- Arbuscular mycorrhizal fungi
- Behaviour
- Fungi-on-a-chip
- Hyphal behaviour
- Microfluidics
- Mycorrhizal traits
- Rhizophagus irregularis
- Soil chips
- Soil pore space
Publication and Content Type
- art (subject category)
- ref (subject category)
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