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Resource: used or used up in processes

Root exudates

Appears in 9 processs and 12 steps. Everything below is linked: open a process to see it in context.

Top processes

Phosphate sorption on Fe and Al oxides and phosphorus availability

2 steps

Roots exude citrate, oxalate and acid phosphatase and form cluster roots, mobilising sorbed and organic phosphate
Low solution phosphate triggers more exudation and root proliferation, which lifts supply

Disease-suppressive soils and the rhizosphere cry for help

2 steps

Plant-soil feedback and species coexistence

2 steps

Living soil system

1 step

Biological coupling: organic matter and soil food web

Aggregate formation and pore structure

1 step

Roots, hyphae and bacterial polysaccharides entangle and glue primary particles

Biological coupling: organic matter and soil food web

1 step

Plant litter and root inputs enter the soil

Show 3 more processes

Micronutrient availability: pH, redox and plant mobilisation of Fe and Zn

1 step

Dicots acidify the rhizosphere, reduce Fe3+ and take up Fe2+, while grasses release phytosiderophores that chelate Fe3+

Nematode feeding groups, the c-p scale and nitrogen release

1 step

Root exudates fuel bacteria, bacterial feeders return ammonium near roots, and plants release more exudate

Roots and rhizosphere

1 step

Disease-suppressive soils and the rhizosphere cry for help

Often found with

Plant roots 8 Carbon 4 Plant litter 3 Plants 3 Soil microbes 2 Soil organic matter 2 Rhizosphere microbes 2 Phosphate 2 Organic acids 2 Iron 2 Soil fauna 1 Fungi 1

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