Počet záznamů: 1
Facilitation of plant water uptake by an arbuscular mycorrhizal fungus: a Gordian knot of roots and hyphae
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SYSNO ASEP 0524757 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Facilitation of plant water uptake by an arbuscular mycorrhizal fungus: a Gordian knot of roots and hyphae Tvůrce(i) Püschel, David (MBU-M) RID, ORCID
Bitterlich, M. (DE)
Rydlová, J. (CZ)
Jansa, Jan (MBU-M) RID, ORCIDZdroj.dok. Mycorrhiza. - : Springer - ISSN 0940-6360
Roč. 30, 2-3 (2020), s. 299-313Poč.str. 15 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova Arbuscular mycorrhizal fungi ; Water acquisition ; Deuterium labeling Vědní obor RIV EE - Mikrobiologie, virologie Obor OECD Microbiology CEP GA17-12166S GA ČR - Grantová agentura ČR Způsob publikování Omezený přístup Institucionální podpora MBU-M - RVO:61388971 UT WOS 000524371500002 EID SCOPUS 85083402115 DOI 10.1007/s00572-020-00949-9 Anotace Arbuscular mycorrhizal (AM) fungi play a positive role in plant water relations, and the AM symbiosis is often cited as beneficial for overcoming drought stress of host plants. Nevertheless, water uptake via mycorrhizal hyphal networks has been little addressed experimentally, especially so through isotope tracing. In a greenhouse study conducted in two-compartment rhizoboxes, Medicago truncatula was planted in the primary compartment (PC), either inoculated with Rhizophagus irregularis or left uninoculated. Plant roots were either allowed to enter the secondary compartment (SC) or were restricted to the PC by root-excluding mesh. Substrate moisture was manipulated in the PC such that the plants were grown either in high moisture (15% of gravimetric water content, GWC) or low moisture (8% GWC). Meanwhile, the SC was maintained at 15% GWC throughout and served as a water source accessible (or not) by roots and/or hyphae. Water in the SC was labeled with deuterium (D) to quantify water uptake by the plants from the SC. Significantly, increased D incorporation into plants indicated higher water uptake by mycorrhizal plants when roots had access to the D source, but this was mainly explained by generally larger mycorrhizal root systems in proximity to the D source. On the other hand, AM fungal hyphae with access to the D source increased D incorporation into plants more than twofold compared to non-mycorrhizal plants. Despite this strong effect, water transport via AM fungal hyphae was low compared to the transpiration demand of the plants. Pracoviště Mikrobiologický ústav Kontakt Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Rok sběru 2021 Elektronická adresa https://link.springer.com/article/10.1007/s00572-020-00949-9
Počet záznamů: 1