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Statements

Subject Item
n2:RIV%2F00216208%3A11310%2F13%3A10193857%21RIV14-MSM-11310___
rdf:type
n16:Vysledek skos:Concept
rdfs:seeAlso
http://dx.doi.org/10.1371/journal.pone.0080535
dcterms:description
Arbuscular mycorrhizal fungi (AMF) are expected to be one of the key drivers determining the diversity of natural plant communities, especially in nutrient-poor and dry habitats. Several previous studies have explored the importance of AMF for the composition of plant communities in various types of habitats. Surprisingly, studies of the role of AMF in nutrient-poor dry grassland communities dominated by less mycotrophic plant species are still relatively rare. We present the results of a 3-year study in which a plant community in a species-rich dry grassland was subjected to the fungicide carbendazim to suppress AMF colonization. We tested the effect of the fungicide on the following parameters: the plant species composition; the number of plant species; the cover of the rare, highly mycorrhiza-dependent species Aster amellus; the cover of the dominant, less mycorrhiza-dependent species Brachypodium pinnatum; and the cover of graminoids and perennial forbs. In addition, we examined the mycorrhizal inoculation potential of the soil. We found that the suppression of AMF with fungicide resulted in substantial changes in plant species composition and significant decrease in species richness, the cover of A. amellus and the cover of perennial forbs. In contrast the species increasing their cover after fungicide application were graminoids-the C3 grasses B. pinnatum and Bromus erectus and the sedge Carex flacca. These species appear to be less mycorrhiza dependent. Moreover, due to their clonal growth and efficient nutrient usage, they are, most likely, better competitors than perennial forbs under fungicide application. Our results thus suggest that AMF are an essential part of the soil communities supporting a high diversity of plant species in species-rich dry grasslands in nutrient-poor habitats. The AMF are especially important for the maintenance of the populations of perennial forbs, many of which are rare and endangered in the area. Arbuscular mycorrhizal fungi (AMF) are expected to be one of the key drivers determining the diversity of natural plant communities, especially in nutrient-poor and dry habitats. Several previous studies have explored the importance of AMF for the composition of plant communities in various types of habitats. Surprisingly, studies of the role of AMF in nutrient-poor dry grassland communities dominated by less mycotrophic plant species are still relatively rare. We present the results of a 3-year study in which a plant community in a species-rich dry grassland was subjected to the fungicide carbendazim to suppress AMF colonization. We tested the effect of the fungicide on the following parameters: the plant species composition; the number of plant species; the cover of the rare, highly mycorrhiza-dependent species Aster amellus; the cover of the dominant, less mycorrhiza-dependent species Brachypodium pinnatum; and the cover of graminoids and perennial forbs. In addition, we examined the mycorrhizal inoculation potential of the soil. We found that the suppression of AMF with fungicide resulted in substantial changes in plant species composition and significant decrease in species richness, the cover of A. amellus and the cover of perennial forbs. In contrast the species increasing their cover after fungicide application were graminoids-the C3 grasses B. pinnatum and Bromus erectus and the sedge Carex flacca. These species appear to be less mycorrhiza dependent. Moreover, due to their clonal growth and efficient nutrient usage, they are, most likely, better competitors than perennial forbs under fungicide application. Our results thus suggest that AMF are an essential part of the soil communities supporting a high diversity of plant species in species-rich dry grasslands in nutrient-poor habitats. The AMF are especially important for the maintenance of the populations of perennial forbs, many of which are rare and endangered in the area.
dcterms:title
The Effect of AMF Suppression on Plant Species Composition in a Nutrient-Poor Dry Grassland The Effect of AMF Suppression on Plant Species Composition in a Nutrient-Poor Dry Grassland
skos:prefLabel
The Effect of AMF Suppression on Plant Species Composition in a Nutrient-Poor Dry Grassland The Effect of AMF Suppression on Plant Species Composition in a Nutrient-Poor Dry Grassland
skos:notation
RIV/00216208:11310/13:10193857!RIV14-MSM-11310___
n16:predkladatel
n17:orjk%3A11310
n5:aktivita
n7:P n7:I n7:S
n5:aktivity
I, P(GAP504/10/1486), S
n5:cisloPeriodika
11
n5:dodaniDat
n6:2014
n5:domaciTvurceVysledku
n9:1754149 n9:5719380 n9:1381660
n5:druhVysledku
n20:J
n5:duvernostUdaju
n11:S
n5:entitaPredkladatele
n18:predkladatel
n5:idSjednocenehoVysledku
71358
n5:idVysledku
RIV/00216208:11310/13:10193857
n5:jazykVysledku
n19:eng
n5:klicovaSlova
soil; field; phosphorus; benomyl; productivity; diversity; tallgrass prairie; community structure; aster-amellus asteraceae; arbuscular mycorrhizal fungi
n5:klicoveSlovo
n8:productivity n8:soil n8:community%20structure n8:field n8:tallgrass%20prairie n8:benomyl n8:diversity n8:arbuscular%20mycorrhizal%20fungi n8:aster-amellus%20asteraceae n8:phosphorus
n5:kodStatuVydavatele
US - Spojené státy americké
n5:kontrolniKodProRIV
[23D6BF621714]
n5:nazevZdroje
PLoS ONE
n5:obor
n15:EF
n5:pocetDomacichTvurcuVysledku
3
n5:pocetTvurcuVysledku
4
n5:projekt
n13:GAP504%2F10%2F1486
n5:rokUplatneniVysledku
n6:2013
n5:svazekPeriodika
8
n5:tvurceVysledku
Dostálek, Tomáš Pánková, Hana Rydlová, Jana Münzbergová, Zuzana
n5:wos
000327252100165
s:issn
1932-6203
s:numberOfPages
11
n21:doi
10.1371/journal.pone.0080535
n10:organizacniJednotka
11310