Rhizosphere effect of colonizer plant species on the development of soil microbial community during primary succession on postmining sites

0328072 - BC 2010 RIV US eng J - Journal Article
Elhottová, Dana - Krištůfek, Václav - Malý, S. - Frouz, Jan
Rhizosphere effect of colonizer plant species on the development of soil microbial community during primary succession on postmining sites.
Communications in Soil Science and Plant Analysis. Roč. 40, 1-6 (2009), s. 758-770. ISSN 0010-3624. E-ISSN 1532-2416
R&D Projects: GA MŠMT LC06066; GA ČR GA526/03/1259
Institutional research plan: CEZ:AV0Z60660521
Keywords : colonizer plant * colliery spoil substrate * rhizosphere effect
Subject RIV: EH - Ecology, Behaviour
Impact factor: 0.397, year: 2009

The impact of pioneer plant species Tussilago farfara on structural, functional, and growth characterization of microbial community colonizing the spoil colliery substrate was studied in a laboratory microcosm experiment. Microcosms consisting of spoil substrate (0.7 dm³ of tertiary alkaline clay sediment from Sokolov brown-coal mine area) from a pioneer site (without vegetation, 5 years after heaping) were cultivated in a greenhouse with one plant of this species. Plant roots substantially increased microbial diversity and biomass after one season (7 months) of cultivation. Roots influenced the microbial community and had nearly twice the size, higher growth, and metabolic potential in comparison to the control. The development of microbial specialists improves the plant nutrient status. Bacterial nitrogen (N)₂ fixators (Bradyrhizobium japonicum, Rhizobium radiobacter) and arbuscular mycorrhizal fungi were confirmed in the rhizosphere of T. farfara.
Permanent Link: http://hdl.handle.net/11104/0174474