0575795 - MBÚ 2024 RIV US eng J - Článek v odborném periodiku
Abdalla, M. - Bitterlich, M. - Jansa, Jan - Püschel, David - Ahmed, M. A.
The role of arbuscular mycorrhizal symbiosis in improving plant water status under drought.
Journal of Experimental Botany. Roč. 74, č. 16 (2023), s. 4808-4824. ISSN 0022-0957. E-ISSN 1460-2431
Grant CEP: GA ČR GA20-08475S
Institucionální podpora: RVO:61388971 ; RVO:67985939
Klíčová slova: Arbuscular mycorrhizal fungi (AMF) * leaf water potential * root hydraulics * root water uptake * soil drying * soil hydraulics * stomatal conductance * transpiration rate
Obor OECD: Microbiology
Impakt faktor: 5.6, rok: 2023
Způsob publikování: Omezený přístup
Web výsledku:
https://academic.oup.com/jxb/article/74/16/4808/7220146?login=true
DOI: https://doi.org/10.1093/jxb/erad249

Arbuscular mycorrhizal fungi (AMF) have been presumed to ameliorate crop tolerance to drought. Here, we review the role of AMF in maintaining water supply to plants from drying soils and the underlying biophysical mechanisms. We used a soil-plant hydraulic model to illustrate the impact of several AMF mechanisms on plant responses to edaphic drought. The AMF enhance the soil's capability to transport water and extend the effective root length, thereby attenuating the drop in matric potential at the root surface during soil drying. The synthesized evidence and the corresponding simulations demonstrate that symbiosis with AMF postpones the stress onset limit, which is defined as the disproportionality between transpiration rates and leaf water potentials, during soil drying. The symbiosis can thus help crops survive extended intervals of limited water availability. We also provide our perspective on future research needs and call for reconciling the dynamic changes in soil and root hydraulics in order to better understand the role of AMF in plant water relations in the face of climate changes.

Trvalý link: https://hdl.handle.net/11104/0345515