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 0532337 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 (BU-J) RID, ORCID
Bitterlich, M. (DE)
Rydlová, Jana (BU-J) RID, ORCID
Jansa, J. (CZ)Zdroj.dok. Mycorrhiza. - : Springer - ISSN 0940-6360
Roč. 30, 2-3 (2020), s. 299-313Poč.str. 15 s. Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova arbuscular mycorrhiza ; plant water uptake ; deuterium labeling Vědní obor RIV EF - Botanika Obor OECD Plant sciences, botany CEP GA17-12166S GA ČR - Grantová agentura ČR Způsob publikování Omezený přístup Institucionální podpora BU-J - RVO:67985939 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) orwere restricted to the PC by rootexcluding 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 Botanický ústav Kontakt Martina Bartošová, martina.bartosova@ibot.cas.cz, ibot@ibot.cas.cz, Tel.: 271 015 242 ; Marie Jakšová, marie.jaksova@ibot.cas.cz, Tel.: 384 721 156-8 Rok sběru 2021 Elektronická adresa http://hdl.handle.net/11104/0311202
Počet záznamů: 1