Romina Storb, Maya Svriz, Elisabet Aranda, Sebastián Fracchia, Nahuel Spinedi, José Martin Scervino
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引用次数: 0
Abstract
Soil contamination with polycyclic aromatic hydrocarbons (PAHs) represents a major environmental challenge and requires cost-effective and environmentally friendly remediation technologies. Phytoremediation, enhanced by arbuscular mycorrhizal fungi (AMF), is an effective and extensive technique for PAHs remediation, although, its application with non-vascular plants, is largely unexplored. This study investigates the role of the AMF Rhizophagus irregularis in the uptake and bioaccumulation of anthracene in the liverwort Lunularia cruciata under in vitro conditions. The thallus and the AMF were able to absorb and bioaccumulate anthracene in the cell wall and spores, hyphae and arbuscules respectively. Our results indicate that the liverwort-fungus system employs multiple phytoremediation mechanisms, including phytoaccumulation and phytostabilization. At intermediate contamination levels, the fungal symbiont enhanced contaminant accumulation in the plant, whereas at higher contamination levels, this effect diminished, suggesting a potential limitation in fungal-mediated uptake under extreme conditions. These findings highlight the potential of AMF symbiosis in liverworts for developing biological tools for PAHs remediation, emphasizing the dependence on pollutant concentration for the effectiveness of phytoremediation.
期刊介绍:
Mycorrhiza is an international journal devoted to research into mycorrhizas - the widest symbioses in nature, involving plants and a range of soil fungi world-wide. The scope of Mycorrhiza covers all aspects of research into mycorrhizas, including molecular biology of the plants and fungi, fungal systematics, development and structure of mycorrhizas, and effects on plant physiology, productivity, reproduction and disease resistance. The scope also includes interactions between mycorrhizal fungi and other soil organisms and effects of mycorrhizas on plant biodiversity and ecosystem structure.
Mycorrhiza contains original papers, short notes and review articles, along with commentaries and news items. It forms a platform for new concepts and discussions, and is a basis for a truly international forum of mycorrhizologists from all over the world.