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Sympatric diploid and tetraploid cytotypes of Centaurea stoebe s.l. do not differ in arbuscular mycorrhizal communities and mycorrhizal growth response
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SYSNO ASEP 0503346 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Sympatric diploid and tetraploid cytotypes of Centaurea stoebe s.l. do not differ in arbuscular mycorrhizal communities and mycorrhizal growth response Author(s) Sudová, Radka (BU-J) RID, ORCID
Kohout, Petr (BU-J) ORCID
Kolaříková, Zuzana (BU-J) ORCID, RID
Rydlová, Jana (BU-J) RID, ORCID
Voříšková, J. (CZ)
Suda, Jan (BU-J) RID
Španiel, S. (CZ)
Müller-Schärer, H. (CH)
Mráz, P. (CZ)Source Title American Journal of Botany. - : Wiley - ISSN 0002-9122
Roč. 105, č. 12 (2018), s. 1995-2007Number of pages 13 s. Language eng - English Country US - United States Keywords arbuscular mycorrhizal fungi ; inter-cytotype differences ; co-existing cytotypes Subject RIV EF - Botanics OECD category Plant sciences, botany Institutional support BU-J - RVO:67985939 UT WOS 000454106300007 EID SCOPUS 85058434244 DOI 10.1002/ajb2.1206 Annotation Premise of the Study Genome duplication is associated with multiple changes at different levels, including interactions with pollinators and herbivores. Yet little is known whether polyploidy may also shape belowground interactions. Methods To elucidate potential ploidy-specific interactions with arbuscular mycorrhizal fungi (AMF), we compared mycorrhizal colonization and assembly of AMF communities in roots of diploid and tetraploid Centaurea stoebe s.l. (Asteraceae) co-occurring in a Central European population. In a follow-up greenhouse experiment, we tested inter-cytotype differences in mycorrhizal growth response by combining ploidy, substrate, and inoculation with native AMF in a full-factorial design. Key Results All sampled plants were highly colonized by AMF, with the Glomeraceae predominating. AMF-community composition revealed by 454-pyrosequencing reflected the spatial distribution of the hosts, but not their ploidy level or soil characteristics. In the greenhouse experiment, the tetraploids produced more shoot biomass than the diploids did when grown in a more fertile substrate, while no inter-cytotype differences were found in a less fertile substrate. AMF inoculation significantly reduced plant growth and improved P uptake, but its effects did not differ between the cytotypes. Conclusions The results do not support our hypotheses that the cytotype structure in a mixed-ploidy population of C. stoebe is mirrored in AMF-community composition and that ploidy-specific fungal communities contribute to cytotype co-existence. Causes and implications of the observed negative growth response to AMF are discussed. Workplace Institute of Botany Contact 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 Year of Publishing 2019
Number of the records: 1