LotaV3, France, Analysis, bibRecord, 000010

From soil to plant, the journey of P through trophic relationships and ectomycorrhizal association

Identifieur interne : 000010 ( France/Analysis ); précédent : 000009; suivant : 000011

From soil to plant, the journey of P through trophic relationships and ectomycorrhizal association

Auteurs : Adeline Becquer [France] ; Jean Trap [France] ; Usman Irshad [Pakistan] ; Muhammad A. Ali [Pakistan] ; Claude Plassard [France]

Source :

Frontiers in Plant Science [ 1664-462X ] ; 2014.

RBID : INRA:273841

Abstract

Phosphorus (P) is essential for plant growth and productivity. It is one of the most limiting macronutrients in soil because it is mainly present as unavailable, bound P whereas plants can only use unbound, inorganic phosphate (Pi), which is found in very low concentrations in soil solution. Some ectomycorrhizal fungi are able to release organic compounds (organic anions or phosphatases) to mobilize unavailable P. Recent studies suggest that bacteria play a major role in the mineralization of nutrients such as P through trophic relationships as they can produce specific phosphatases such as phytases to degrade phytate, the main form of soil organic P. Bacteria are also more effective than other microorganisms or plants at immobilizing free Pi. Therefore, bacterial grazing by grazers, such as nematodes, could release Pi locked in bacterial biomass. Free Pi may be taken up by ectomycorrhizal fungus by specific phosphate transporters and transferred to the plant by mechanisms that have not yet been identified. This mini-review aims to follow the phosphate pathway to understand the ecological and molecular mechanisms responsible for transfer of phosphate from the soil to the plant, to improve plant P nutrition.

Url:

http://prodinra.inra.fr/record/273841

DOI: 10.3389/fpls.2014.00548

Affiliations:

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to stream HalInra, to step Curation: 000034
to stream HalInra, to step Checkpoint: 000004
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to stream Main, to step Exploration: 000058
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INRA:273841

Le document en format XML

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<front><div type="abstract" xml:lang="en">Phosphorus (P) is essential for plant growth and productivity. It is one of the most limiting macronutrients in soil because it is mainly present as unavailable, bound P whereas plants can only use unbound, inorganic phosphate (Pi), which is found in very low concentrations in soil solution. Some ectomycorrhizal fungi are able to release organic compounds (organic anions or phosphatases) to mobilize unavailable P. Recent studies suggest that bacteria play a major role in the mineralization of nutrients such as P through trophic relationships as they can produce specific phosphatases such as phytases to degrade phytate, the main form of soil organic P. Bacteria are also more effective than other microorganisms or plants at immobilizing free Pi. Therefore, bacterial grazing by grazers, such as nematodes, could release Pi locked in bacterial biomass. Free Pi may be taken up by ectomycorrhizal fungus by specific phosphate transporters and transferred to the plant by mechanisms that have not yet been identified. This mini-review aims to follow the phosphate pathway to understand the ecological and molecular mechanisms responsible for transfer of phosphate from the soil to the plant, to improve plant P nutrition.</div>
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From soil to plant, the journey of P through trophic relationships and ectomycorrhizal association

From soil to plant, the journey of P through trophic relationships and ectomycorrhizal association

Source :

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri