The influence of phosphorus availability and Laccaria bicolor symbiosis on phosphate acquisition, antioxidant enzyme activity, and rhizospheric carbon flux in Populus tremuloides

Mycorrhiza
Shalaka DesaiJonathan R Cumming

Abstract

Many forest tree species are dependent on their symbiotic interaction with ectomycorrhizal (ECM) fungi for phosphorus (P) uptake from forest soils where P availability is often limited. The ECM fungal association benefits the host plant under P limitation through enhanced soil exploration and increased P acquisition by mycorrhizas. To study the P starvation response (PSR) and its modification by ECM fungi in Populus tremuloides, a comparison was made between nonmycorrhizal (NM) and mycorrhizal with Laccaria bicolor (Myc) seedlings grown under different concentrations of phosphate (Pi) in sand culture. Although differences in growth between NM and Myc plants were small, Myc plants were more effective at acquiring P from low Pi treatments, with significantly lower k m values for root and leaf P accumulation. Pi limitation significantly increased the activity of catalase, ascorbate peroxidase, and guaiacol-dependent peroxidase in leaves and roots to greater extents in NM than Myc P. tremuloides. Phosphoenolpyruvate carboxylase activity also increased in NM plants under P limitation, but was unchanged in Myc plants. Formate, citrate, malonate, lactate, malate, and oxalate and total organic carbon exudation by roots was stimulated b...Continue Reading

References

Nov 1, 1971·Analytical Biochemistry·C Beauchamp, I Fridovich
Jul 4, 2001·Journal of Experimental Botany·A J PietersD W Lawlor
May 20, 2003·Current Opinion in Plant Biology·José López-BucioLuis Herrera-Estrella
Sep 21, 2004·Annual Review of Plant Biology·Leon V KochianMiguel A Pineros
Oct 13, 2009·Plant Signaling & Behavior·Claudia Anahí Pérez TorresLuis Herrera Estrella
Apr 13, 2010·Plant Signaling & Behavior·Hatem RouachedBulak A Arpat
Jul 16, 2010·Tree Physiology·C Plassard, B Dell
May 13, 2011·Plant Physiology·William C Plaxton, Hue T Tran

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Citations

Feb 17, 2018·Frontiers in Plant Science·Rosemarie WiltonKenneth M Kemner
Nov 1, 2020·The New Phytologist·Simon ClausingAndrea Polle
Feb 1, 2017·Environmental Pollution·Diane RadwanskiKarina V R Schäfer
Apr 28, 2021·Plant Science : an International Journal of Experimental Plant Biology·Mareike KavkaAndrea Polle

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