Spatio-temporal dynamics of arbuscular mycorrhizal fungi associated with glomalin-related soil protein and soil enzymes in different managed semiarid steppes

Wang, Qi; Bao, Yulong; Liu, Xiaowei; Du, Guoxin

doi:10.1007/s00572-014-0572-9

Cited by 39 publications

(37 citation statements)

References 65 publications

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“…Modification of soil fungal species/OTU composition (estimated by the same methods mentioned in the previous chapter) after land use change is quite common and most obvious while comparing forest sites with cropland sites. As expected, various native forest types showed different fungal species composition compared to secondary forest (Mueller et al 2016), plantation forest (Kasel et al 2008, Moora et al 2014, Brinkmann et al 2019, pasture (Wang et al 2014), grassland (Yurkov et al 2012), and perennial cropland (Li et al 2013). After the conversion of rain forest sites to rubber plantation, Kerfahi et al (2016) observed changes from a Basidiomycota dominated to an Ascomycota dominated community.…”

Section: Community Structuresupporting

confidence: 57%

Soil fungal communities across land use types

Balami¹,

Vašutová²,

Godbold³

et al. 2020

iForest

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Biogeosciences and Forestry Biogeosciences and Forestry Soil fungal communities across land use types Sujan Balami (1) , Martina Vašutová (1-2) , Douglas Godbold (2-3) , Petr Kotas (4) , Pavel Cudlín (2) Land use change is one of the major causes of biodiversity loss, mostly due to habitat change and fragmentation. Belowground fungal diversity is very important in terrestrial ecosystems, however, the effect of land use change on soil fungal community is poorly understood. In this review, a total of 190 studies worldwide were analyzed. To monitor the effect of land use change, different fungal parameters such as richness, diversity, community composition, root colonization by arbuscular mycorrhizal (AM) and ectomycorrhizal (ECM) fungi, spore density, ergosterol, and phospholipid fatty acid (PLFA) content and AM fungal glomalin related soil protein (GRSP) were studied. In general, results from analyzed studies often showed a negative response of fungal quantitative parameters after land use change from less-intensive site management to intensive site management. Land use change mostly showed significant shifts in fungal community composition. Considering land use change types, only 18 out of 91 land use change types were included in more than 10 studies, conversion of primary and secondary forest to various, more intensive land use was most often represented. All these 18 types of land use change influenced fungal community composition, however, the effects on quantitative parameters were mostly inconsistent. Current knowledge is not sufficient to conclude general land use impacts on soil fungi as the reviewed studies are fragmented and limited by the local context of land use change. Unification of the methodology, detailed descriptions of environmental factors, more reference sequences in public databases, and especially data on ecology and quantitative parameters of key fungal species would significantly improve the understanding of this issue.

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Section: Community Structuresupporting

confidence: 57%

Soil fungal communities across land use types

Balami¹,

Vašutová²,

Godbold³

et al. 2020

iForest

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“…In addition, the high rate of sporulation (Oehl et al, 2009) and hyphal turnover (Staddon et al, 2003), as well as reproduction from both hyphal fragments and spores probably makes AMF species of Glomeraceae resistant to hyphal disruption and mycelial loss caused by grazing. Likewise, Glomus species were detected in greater abundance in a long-term, overgrazed steppe compared with naturallyrestored and non-grazed sites in typical steppes of Inner Mongolia (Wang et al, 2014). These ndings suggest that functional life-history strategies in the Glomeraceae may have enhanced the capability of the most species in this family to withstand grazing disturbance.…”

Section: Amf β-Diversity and Grazing Intensitymentioning

confidence: 77%

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

Faghihinia

Zou

Bai³

et al. 2021

Preprint

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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.

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“…In the tested soils, in total seven AMF sequences were identified, being clustered with Paraglomus occultum , Ambispora fennica, Scutellospora species, Rhizophagus species, Diversispora, or Claroideglomus species. Though most of these AMF species were also observed in other steppes ( Wang et al, 2014 ; Hiiesalu et al, 2014 ), no Glomus species was identified in the tested soils, G. mosseae of which has been reported from all continents except the Antarctic ( Guo et al, 2016 ; Rosendahl, McGee & Morton, 2009 ), reflecting its wide adaptation and positive roles in different ecosystems ( Smith & Read, 1997 ). The possible reason might be related to the soil properties of the current degraded steppe.…”

Section: Discussionmentioning

confidence: 98%

Effects of fertilizations on soil bacteria and fungi communities in a degraded arid steppe revealed by high through-put sequencing

Yao

Wang

Kang

et al. 2018

PeerJ

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BackgroundFertilization as one of the measures in restoring degraded soil qualities has been introduced on arid steppes in recent decades. However, the fertilization use efficiency on arid steppes varies greatly between steppe types and years, enhancing uncertainties and risks in introducing fertilizations on such natural system to restore degraded steppes.MethodsThe experiment was a completely randomized design with five fertilization treatments, 0 (Control), 60 kg P ha−1 (P), 100 kg N ha−1 (N), 100 kg N ha−1 plus 60 kg P ha−1 (NP), and 4,000 kg sheep manure ha−1 (M, equaling 16.4 kg P ha−1 and 81.2 kg N ha−1). Soils were sampled from a degraded arid steppe which was consecutively applied with organic and inorganic fertilizers for three years. We analyzed the diversity and abundance of soil bacteria and fungi using high-throughput sequencing technique, measured the aboveground biomass, the soil chemical properties (organic carbon, available and total phosphorus, available and total nitrogen, and pH), and the microbial biomass nitrogen and microbial biomass carbon.ResultsIn total 3,927 OTU (operational taxonomic units) for bacteria and 453 OTU for fungi were identified from the tested soils. The Ace and Chao of bacteria were all larger than 2,400, which were almost 10 times of those of fungi. Fertilizations had no significant influence on the richness and diversity of the bacteria and fungi. However, the abundance of individual bacterial or fungi phylum or species was sensitive to fertilizations. Fertilization, particularly the phosphorus fertilizer, influenced more on the abundance of the AMF species and colonization. Among the soil properties, soil pH was one of the most important soil properties influencing the abundance of soil bacteria and fungi.DiscussionPositive relationships between the abundance of bacteria and fungi and the soil chemical properties suggested that soil bacteria and fungi communities in degraded steppes could be altered by improving the soil chemical properties through fertilizations. However, it is still not clear whether the alteration of the soil microbe community is detrimental or beneficial to the degraded arid steppes.

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Spatio-temporal dynamics of arbuscular mycorrhizal fungi associated with glomalin-related soil protein and soil enzymes in different managed semiarid steppes

Cited by 39 publications

References 65 publications

Soil fungal communities across land use types

Soil fungal communities across land use types

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

Effects of fertilizations on soil bacteria and fungi communities in a degraded arid steppe revealed by high through-put sequencing

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