Limited impact of arbuscular mycorrhizal fungi on clones of Agrostis capillaris with different heavy metal tolerance

0463972 - BÚ 2017 RIV NL eng J - Journal Article
Doubková, Pavla - Sudová, Radka
Limited impact of arbuscular mycorrhizal fungi on clones of Agrostis capillaris with different heavy metal tolerance.
Applied Soil Ecology. Roč. 99, MAR 2016 (2016), s. 78-88. ISSN 0929-1393. E-ISSN 1873-0272
R&D Projects: GA AV ČR(CZ) KJB600050636
Institutional support: RVO:67985939
Keywords : arbuscular mycorrhizal symbiosis * heavy metal contamination * lead, zinc, copper and cadmium
Subject RIV: EH - Ecology, Behaviour
Impact factor: 2.786, year: 2016

The present study addresses the question whether heavy metal (HM) tolerance of host plants (the pseudometallophyte Agrostis capillaris) determines how arbuscular mycorrhizal (AM) symbiosis (inoculation with HM-tolerant AM fungal strain of Rhizophagus irregularis) affects their response to increasing HM stress. Plant growth and chlorophyll concentrations decreased with rising substrate contamination much more in the HM-sensitive clone, which also accumulated significantly more Pb, Cd, Zn and Cu in its shoots. Contrary to our hypothesis, the inter-clonal differences little affected the outcome of the interaction of A. capillaris with AM fungi along the contamination gradient. In spite of evidencing certain positive effects of AM fungi on the physiological state of their hosts, our data provide little support for AM inoculation as an economically feasible strategy for A. capillaris-based revegetation of HM-contaminated sites.
Permanent Link: http://hdl.handle.net/11104/0264668