Effects of long-term land use on arbuscular mycorrhizal fungi and glomalin-related soil protein

2007 ◽  
Vol 120 (2-4) ◽  
pp. 463-466 ◽  
Author(s):  
Stefano Bedini ◽  
Luciano Avio ◽  
Emanuele Argese ◽  
Manuela Giovannetti
Keyword(s):  
Land Use ◽  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Soil Protein

Grazing intensity rather than host plant’s palatability shape the community of arbuscular mycorrhizal fungi in a steppe grassland

2021 ◽  
Author(s):  
Maede Faghihinia ◽  
Yi Zou ◽  
Yongfei Bai ◽  
Martin Dudáš ◽  
Rob Marrs ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Community Composition ◽  
Mycorrhizal Fungi ◽  
Rhizosphere Soil ◽  
Grazing Intensity ◽  
Arbuscular Mycorrhizal ◽  
Grass Species ◽  
Α Diversity ◽  
Steppe Grassland

Abstract Arbuscular mycorrhizal fungi (AMF) are the predominant type of mycorrhizal fungi in roots and rhizosphere soil of grass species worldwide. Grasslands are currently experiencing increasing grazing pressure, but it is not yet clear how grazing intensity and host plant grazing preference by large herbivores interact with soil- and root-associated AMF communities. Here, we tested whether the diversity and community composition of AMF in the roots and rhizosphere soil of two dominant perennial grasses grazed differently by livestock change in response to grazing intensity. We conducted a study in a long-term field experiment in which seven levels of field-manipulated grazing intensities were maintained for 13 years in a typical steppe grassland in northern China. We extracted DNA from the roots and rhizosphere soil of two dominant grasses, Leymus chinense (Trin.) Tzvel. and Stipa grandis P. Smirn, with contrasting grazing preference by sheep. AMF DNA from root and soil samples were then subjected to molecular analysis. Our results showed that AMF α-diversity (richness) at the virtual taxa (VT) level varied as a function of grazing intensity. Different VTs showed completely different responses along the gradient, one increasing, one decreasing and others showing no response. Glomeraceae was the most abundant AMF family along the grazing gradient, which fits well with the theory of disturbance tolerance of this group. In addition, sheep grazing preference for host plants did not explain a considerable variation in AMF α-diversity. However, the two grass species exhibited different community composition in their roots and rhizosphere soils. Roots exhibited a lower α-diversity and higher β-diversity within the AMF community than soils. Overall, our results suggest that long-term grazing intensity might have changed the abundance of functionally-diverse AMF taxa in favor of those with disturbance-tolerant traits. We suggest our results would be useful in informing the choice of mycorrhizal fungi indicator variables when assessing the impacts of grassland management choices on grassland ecosystem functioning.

Root colonizing and soil borne communities of arbuscular mycorrhizal fungi differ among soybean fields with contrasting historical land use

2019 ◽  
Vol 269 ◽  
pp. 174-182 ◽  
Author(s):  
Valeria Soledad Faggioli ◽  
Marta Noemí Cabello ◽  
Gabriel Grilli ◽  
Martti Vasar ◽  
Fernanda Covacevich ◽  
...  
Keyword(s):  
Land Use ◽  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Historical Land Use

scholarly journals Impact of Land Use Intensity on the Species Diversity of Arbuscular Mycorrhizal Fungi in Agroecosystems of Central Europe

2003 ◽  
Vol 69 (5) ◽  
pp. 2816-2824 ◽  
Author(s):  
Fritz Oehl ◽  
Ewald Sieverding ◽  
Kurt Ineichen ◽  
Paul Mäder ◽  
Thomas Boller ◽  
...  
Keyword(s):  
Land Use ◽  
Arbuscular Mycorrhizal Fungi ◽  
Crop Rotation ◽  
Mycorrhizal Fungi ◽  
Root Colonization ◽  
Arbuscular Mycorrhizal ◽  
Soil Samples ◽  
Land Use Intensity ◽  
High Input ◽  
Continuous Maize

ABSTRACT The impact of land use intensity on the diversity of arbuscular mycorrhizal fungi (AMF) was investigated at eight sites in the “three-country corner” of France, Germany, and Switzerland. Three sites were low-input, species-rich grasslands. Two sites represented low- to moderate-input farming with a 7-year crop rotation, and three sites represented high-input continuous maize monocropping. Representative soil samples were taken, and the AMF spores present were morphologically identified and counted. The same soil samples also served as inocula for “AMF trap cultures” with Plantago lanceolata, Trifolium pratense, and Lolium perenne. These trap cultures were established in pots in a greenhouse, and AMF root colonization and spore formation were monitored over 8 months. For the field samples, the numbers of AMF spores and species were highest in the grasslands, lower in the low- and moderate-input arable lands, and lowest in the lands with intensive continuous maize monocropping. Some AMF species occurred at all sites (“generalists”); most of them were prevalent in the intensively managed arable lands. Many other species, particularly those forming sporocarps, appeared to be specialists for grasslands. Only a few species were specialized on the arable lands with crop rotation, and only one species was restricted to the high-input maize sites. In the trap culture experiment, the rate of root colonization by AMF was highest with inocula from the permanent grasslands and lowest with those from the high-input monocropping sites. In contrast, AMF spore formation was slowest with the former inocula and fastest with the latter inocula. In conclusion, the increased land use intensity was correlated with a decrease in AMF species richness and with a preferential selection of species that colonized roots slowly but formed spores rapidly.

scholarly journals Impacts of long‐term elevated atmospheric CO 2 concentrations on communities of arbuscular mycorrhizal fungi

2019 ◽  
Vol 28 (14) ◽  
pp. 3445-3458 ◽  
Author(s):  
Irena Maček ◽  
Dave R. Clark ◽  
Nataša Šibanc ◽  
Gerald Moser ◽  
Dominik Vodnik ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal

Arbuscular mycorrhizal fungi diversity and transpiratory rate in long-term field cover crop systems from tropical ecosystem, northeastern Brazil

Symbiosis ◽  
2021 ◽  
Author(s):  
Lucas Sombra Barbosa ◽  
Tancredo Augusto Feitosa de Souza ◽  
Edjane de Oliveira Lucena ◽  
Lucas Jónatan Rodrigues da Silva ◽  
Lídia Klestadt Laurindo ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Cover Crop ◽  
Arbuscular Mycorrhizal ◽  
Northeastern Brazil ◽  
Tropical Ecosystem ◽  
Term Field

scholarly journals Impact of long-term conventional and organic farming on the diversity of arbuscular mycorrhizal fungi

Oecologia ◽  
2004 ◽  
Vol 138 (4) ◽  
pp. 574-583 ◽  
Author(s):  
Fritz Oehl ◽  
Ewald Sieverding ◽  
Paul M�der ◽  
David Dubois ◽  
Kurt Ineichen ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Organic Farming ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal
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