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Title (Primary) pH distribution along growing fungal hyphae at microscale
Author Xiong, B.-J.; Stanley, C.E.; Dusny, C.; Schlosser, D.; Harms, H.; Wick, L.Y.
Journal Journal of Fungi
Year 2022
Department UMB; SOMA
Volume 8
Issue 6
Page From art. 599
Language englisch
Topic T7 Bioeconomy
Supplements https://www.mdpi.com/2309-608X/8/6/599/s1?version=1654255174
Keywords bioreporter; microfluidics; hyphosphere; mycosphere; Coprinopsis cinerea; single cell
Abstract Creating unique microenvironments, hyphal surfaces and their surroundings allow for spatially distinct microbial interactions and functions at the microscale. Using a microfluidic system and pH-sensitive whole-cell bioreporters (Synechocystis sp. PCC6803) attached to hyphae, we spatially resolved the pH along surfaces of growing hyphae of the basidiomycete Coprinopsis cinerea. Time-lapse microscopy analysis of ratiometric fluorescence signals of >2400 individual bioreporters revealed an overall pH drop from 6.3 ± 0.4 (n = 2441) to 5.0 ± 0.3 (n = 2497) within 7 h after pH bioreporter loading to hyphal surfaces. The pH along hyphal surfaces varied significantly (p < 0.05), with pH at hyphal tips being on average ~0.8 pH units lower than at more mature hyphal parts near the entrance of the microfluidic observation chamber. Our data represent the first dynamic in vitro analysis of surface pH along growing hyphae at the micrometre scale. Such knowledge may improve our understanding of spatial, pH-dependent hyphal processes, such as the degradation of organic matter or mineral weathering.
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=26201
Xiong, B.-J., Stanley, C.E., Dusny, C., Schlosser, D., Harms, H., Wick, L.Y. (2022):
pH distribution along growing fungal hyphae at microscale
J. Fungi 8 (6), art. 599