Fungal organic acid uptake of mineral-derived K is dependent on distance from carbon hotspot.

ABSTRACT: Fungal mineral weathering regulates the bioavailability of inorganic nutrients from mineral surfaces to organic matter and increase the bioavailable fraction of nutrients. Such weathering strategies are classified as biomechanical or biochemical. In the case of fungal uptake of mineral nutrients through biochemical weathering, it is widely hypothesized that uptake of inorganic nutrients occurs through organic acid chelation, but such processes have not been directly visualized. This is in part due to challenges in probing the complex and heterogeneous soil environment. Here, using an epoxy-based, mineral-doped soil micromodel platform, which emulates soil mineralogy and porosity, we visualize the molecular mechanisms of mineral weathering. Mass spectrometry imaging revealed differences in

SUBMITTER: Bhattacharjee A 

PROVIDER: S-EPMC10653886 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature