Drought accentuates the role of mycorrhiza in phosphorus uptake, part II - The intraradical enzymatic response

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F24%3A00597584" target="_blank" >RIV/61388971:_____/24:00597584 - isvavai.cz</a>

Alternative codes found

RIV/67985939:_____/24:00597584

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0038071724001032?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0038071724001032?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.soilbio.2024.109414" target="_blank" >10.1016/j.soilbio.2024.109414</a>

Result language

angličtina

Original language name

Drought accentuates the role of mycorrhiza in phosphorus uptake, part II - The intraradical enzymatic response

Original language description

Edaphic drought reduces phosphorus (P) diffusivity in soils and arbuscular mycorrhizal fungi (AMF) can compensate for this. We recently showed, along a high- resolution substrate moisture gradient, that AMF effectively deliver P to plants under drought from areas beyond the reach of roots. Here, we investigated how edaphic drought affected the active sites of P exchange between AMF and plants inside the roots using different histochemical stains. Inoculation of dwarf tomato plants (cv. MicroTom) with AMF ( Rhizophagus irregularis) ) slightly increased water retention (decreased the water potential) in substrates, decreased root length, and increased shoot P concentrations compared to non-mycorrhizal plants. Despite their reduced root length, mycorrhizal tomato plants showed a surprisingly congruent physiological drought stress response with their non-mycorrhizal counterparts. However, the activity of alkaline phosphatase (ALP) detected in intraradical fungal structures decreased significantly as soil and xylem water potentials decreased. The decline of ALP activity with increasing drought intensity was accompanied by a reduction of elevated P concentration benefits in shoots of mycorrhizal plants compared to non-mycorrhizal plants. Therefore, we conclude that edaphic drought can restrict the nutritional advantages that plants receive from AMF at the root-fungal interface. This is one of the direct consequences of drought.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10606 - Microbiology

Project

<a href="/en/project/GA20-08475S" target="_blank" >GA20-08475S: Arbuscular mycorrhiza and drought: in search of the hidden benefits</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Soil Biology and Biochemistry

ISSN

0038-0717

e-ISSN

1879-3428

Volume of the periodical

193

Issue of the periodical within the volume

June 24

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

109414

UT code for WoS article

001289926800001

EID of the result in the Scopus database

2-s2.0-85189031963