Soil phosphorus fractions and arbuscular mycorrhizal fungi diversity following long-term grazing exclusion on semi-arid steppes in Inner Mongolia

Geoderma ◽  
2016 ◽  
Vol 269 ◽  
pp. 79-90 ◽  
Author(s):  
Yanjun Guo ◽  
Qingfeng Du ◽  
Guangdi Li ◽  
Yu Ni ◽  
Zhen Zhang ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Inner Mongolia ◽  
Soil Phosphorus ◽  
Arbuscular Mycorrhizal ◽  
Phosphorus Fractions ◽  
Soil Phosphorus Fractions ◽  
Grazing Exclusion ◽  
Semi Arid

scholarly journals Long-term effects of grazing and topography on extra-radical hyphae of arbuscular mycorrhizal fungi in semi-arid grasslands

Mycorrhiza ◽  
2017 ◽  
Vol 28 (2) ◽  
pp. 117-127 ◽  
Author(s):  
Haiyan Ren ◽  
Weiyang Gui ◽  
Yongfei Bai ◽  
Claudia Stein ◽  
Jorge L. M. Rodrigues ◽  
...  
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Long Term Effects ◽  
Arid Grasslands ◽  
Semi Arid

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.

scholarly journals Long-term excessive phosphorus fertilization alters soil phosphorus fractions in the acidic soil of pomelo orchards

2022 ◽  
Vol 215 ◽  
pp. 105214
Author(s):  
Xiaohui Chen ◽  
Xiaojun Yan ◽  
Mingkuang Wang ◽  
Yuanyang Cai ◽  
Xuefan Weng ◽  
...  
Keyword(s):  
Soil Phosphorus ◽  
Phosphorus Fractions ◽  
Acidic Soil ◽  
Phosphorus Fertilization ◽  
Soil Phosphorus Fractions

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
Sign in / Sign up

Export Citation Format

Share Document