Effects of Penicillium bilaii on maize growth are mediated by available phosphorus
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Effects of Penicillium bilaii on maize growth are mediated by available phosphorus. / Gómez-Muñoz, B.; Jensen, L. S.; de Neergaard, A.; Richardson, A. E.; Magid, J.
In: Plant and Soil, Vol. 431, No. 1-2, 2018, p. 159-173.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Effects of Penicillium bilaii on maize growth are mediated by available phosphorus
AU - Gómez-Muñoz, B.
AU - Jensen, L. S.
AU - de Neergaard, A.
AU - Richardson, A. E.
AU - Magid, J.
PY - 2018
Y1 - 2018
N2 - Background and aims: Inoculation with Penicillium bilaii has been reported to increase plant growth, which is attributed to increase availability of phosphorus (P), but similar effects have been observed with no P limitation, suggesting that other mechanisms may be involved. The aim of this work was to evaluate the interaction between available soil P and P. bilaii inoculation on plant growth. Methods: Maize plants (Zea mays) inoculated with P. bilaii and non-inoculated were grown in pot experiments in three soils with different inherent P availability, and in a low P availability soil with different additions of mineral P, both with and without supplementation of all other macro and micronutrients. Results: We found a positive interaction between P bilaii and available P, when other nutrients were applied, with P bilaii inoculation resulting in increased root growth and thus nutrient uptake and plant growth. By contrast, when other nutrients were not supplied, little effect on plant growth or P uptake was observed, except for root length that tended to decrease in inoculated plants with P addition. Conclusions: The effects of P. bilaii inoculation were related to root growth and function, but were dependent on the nutrient status in the soil environment.
AB - Background and aims: Inoculation with Penicillium bilaii has been reported to increase plant growth, which is attributed to increase availability of phosphorus (P), but similar effects have been observed with no P limitation, suggesting that other mechanisms may be involved. The aim of this work was to evaluate the interaction between available soil P and P. bilaii inoculation on plant growth. Methods: Maize plants (Zea mays) inoculated with P. bilaii and non-inoculated were grown in pot experiments in three soils with different inherent P availability, and in a low P availability soil with different additions of mineral P, both with and without supplementation of all other macro and micronutrients. Results: We found a positive interaction between P bilaii and available P, when other nutrients were applied, with P bilaii inoculation resulting in increased root growth and thus nutrient uptake and plant growth. By contrast, when other nutrients were not supplied, little effect on plant growth or P uptake was observed, except for root length that tended to decrease in inoculated plants with P addition. Conclusions: The effects of P. bilaii inoculation were related to root growth and function, but were dependent on the nutrient status in the soil environment.
KW - Penicillium bilaii
KW - Phosphorus availability
KW - Phosphorus-solubilising microorganisms
KW - Plant growth promotion
KW - Root length
U2 - 10.1007/s11104-018-3756-9
DO - 10.1007/s11104-018-3756-9
M3 - Journal article
AN - SCOPUS:85050236804
VL - 431
SP - 159
EP - 173
JO - Plant and Soil
JF - Plant and Soil
SN - 0032-079X
IS - 1-2
ER -
ID: 202974165