Phosphorus limitation in a Ferralsol: Impact on microbial activity and cell internal P pools

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Microbial hotspots and hot moments in soil: Concept & review (2015, background): “Nonetheless, the increase of individual fungal (up to 50 times, Ehlers et al., 2010) and Gram( ) bacterial (up to 5.5 times, Aciego meters below the free line reflect the changes of fluxes or of microbial activities.”
Microbial processes controlling P availability in forest spodosols as affected by soil depth and soil properties (2012, background): “Indeed, microbial P generally increases after substrate additions and is related to microbial respiration (Butterly et al., 2009; Ehlers et al., 2010; Oehl et al., 2001a), while P addition alone may not lead to an increase in cell P content (Ehlers et al.”
Rhizosphere priming: a nutrient perspective (2013, background): “Microbial activity and growth can be limited by P, which has mostly been observed in highly weathered tropical soils (Cleveland et al., 2002; Ehlers et al., 2010), but also in a calcareous (Raiesi and Ghollarata, 2006), peat (Amador and Jones, 1993), and boreal forest soils (Giesler et al., 2002).”
Active microorganisms in soil: Critical review of estimation criteria and approaches (2013, methodology): “Assuming the up to 40% differences in PLFA content between active and dormant bacterial cells (Table 4) (Ehlers et al., 2010), the 2.5-fold increase in PLFA (from 30 to 75 nmol PLFA g 1 soil) corresponded to only a 1.75-fold increase in active biomass.”