Arbuscular Mycorrhizal Fungal Community Structure in the Rhizosphere of Three Plant Species of Crystalline and Sedimentary Areas in the Brazilian Dry Forest

Passos, José Hilton Dos; Maia, Leonor Costa; Assis, Daniele Magna Azevedo de; Silva, Jailma Alves da; Oehl, Fritz; Silva, Iolanda Ramalho da

doi:10.1007/s00248-020-01557-y

Cited by 13 publications

(3 citation statements)

References 77 publications

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“…In inselberg, Glomus macrocarpum was found in 95% of the samples, followed by Acaulospora excavata, Glomus brohultii and Claroideoglomus sp.1 (Sousa et al, 2017). Several articles report the dominance of Glomus macrocarpum in areas of Caatinga, being often present in the various areas collected (Pereira et al, 2018;Passos et al, 2020). In the present work, the species of AMF A. appendicula, A. scrobiculata, A. excavata and G. macrocarpum were also found.…”

Section: Resultssupporting

confidence: 47%

Monitoring of Nematofauna and Arbuscular Mycorrhizal Fungi in a Caatinga Area and in the Adjacent Culture

Lima

Campos

2023

Preprint

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The caatinga biome has high biodiversity. Anthropogenic actions have generated degradation, and evaluations that can prove this situation are important to preservation and sustainable use. Soil quality can be assessed by the activity or diversity of organisms. Among the organisms that can be evaluated are arbuscular mycorrhizal fungi (AMF), important for the maintenance of the ecosystem, and soil nematodes, which participate in the food web. In this way, the evaluation of these organisms in the soil can present an overview of the conditions of this environment. Thus, this work aims to evaluate AMF activity (mycorrhizal colonization and spore density) and AMF diversity and trophic groups of nematodes in the Caatinga area (interior and edge) and adjacent cultivation area. For this, 10 samples of soil and roots were collected in each area (interior Caatinga, edge Caatinga, cultivation). The spore density, percentage of mycorrhizal colonization, abundance of omnivores, carnivores and phytonematodes stood out in the first dry period of collection. The abundance of bacteriovores stood out in the two dry periods. Regarding the areas, the cultivation showed a higher amount of phytonematodes, as well as AMF spores and mycorrhizal colonization, the latter being in the last three collections. The abundance of fungivores also stood out in the cultivation area, in the first two collection periods. It is concluded that the studied Caatinga presents regular edaphic conditions. In addition, it was observed that there was no highlighted edge effect, with many of the parameters of the edge Caatinga similar to the interior Caatinga.

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Section: Resultssupporting

confidence: 47%

Monitoring of Nematofauna and Arbuscular Mycorrhizal Fungi in a Caatinga Area and in the Adjacent Culture

Lima

Campos

2023

Preprint

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“…AMF diversity has been reported in various ecosystems, such as grassland ecosystem ( Liang et al, 2017 ; Smilauer et al, 2019 ; Goldmann et al, 2020 ), agricultural ecosystem ( Oehl et al, 2010 ; Liu et al, 2019 ; Zhu et al, 2020 ), forest ecosystem ( Dos Passos et al, 2020 ; Rozek et al, 2020 ), and even global ecosystem ( Tedersoo et al, 2014 ; Davison et al, 2015 ). Because of the strong environmental gradient, mountain ecosystem provides a unique opportunity for the study of AMF diversity and becomes a key area for global biodiversity research ( Zanzottera et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Molecular Diversity and Distribution of Arbuscular Mycorrhizal Fungi at Different Elevations in Mt. Taibai of Qinling Mountain

et al. 2021

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Arbuscular mycorrhizal fungi (AMFs) play a vital role in ecosystems, especially in ecosystem variability, diversity, and function. Understanding the AMF diversity, distribution, and their driver at different altitudinal gradients is a benefit for understanding the ecological function of AMF in mountain ecosystems. In this study, we explored the AMF molecular diversity and their distribution from 660 to 3,500 m a.s.l. in Mount Taibai of Qinling Mountains based on high-throughput sequencing technology. A total of 702 operational taxonomic units (OTUs) in 103 species of AMF are isolated from soil samples, which belong to 18 identified and 1 unidentified genus in 10 families. The fungi in the genus of Glomus is the most dominant, with the occurrence frequency of 100% and the relative abundance of 42.268% and 33.048% on the species and OTU level, respectively. The AMF colonization in root could be simulated by a cubic function with the change of altitudes with the peak and trough at a.s.l. 1,170 and 2,850 m, respectively. Further, AMF diversity indices including Sob, Shannon diversity, and Pielou evenness also showed the same cubic function change trends with increasing altitude at OTU and species levels. However, the average values of diversity indices at OTU level are always higher than these at the species level. Based on the OTU level, the highest and lowest values of Shannon and Pielou indices are observed at the altitudes of 1,400 and 2,800 m, respectively. The pattern of AMF community distribution in Mt. Taibai is driven by altitude with the characteristics of more abundance in the medium- to low-altitude than high-altitude areas. In general, abundant AMF molecular diversity and species exit in different elevations of Mt. Taibai, which indicate gradient changes with elevations.

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“…Ferreira et al report results from microcosm experiments supporting a model where soil microbial diversity modulates the plants' root colonization by arbuscular mycorrhizal fungi (AMF) [40]. Dos Passos et al report diversity and composition of AMF in the Brazilian dry forest and describe several geological and plant host drivers [41]. Rodrigues et al studied the diversity of AMF in a Brazilian conservation unit of Atlantic forest areas and report that natural regeneration increased AMF diversity [42].…”

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confidence: 96%

Fungal Ecology Special Issue: Editorial

Carbonero

Strobel

2021

Microb Ecol

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Arbuscular Mycorrhizal Fungal Community Structure in the Rhizosphere of Three Plant Species of Crystalline and Sedimentary Areas in the Brazilian Dry Forest

Cited by 13 publications

References 77 publications

Monitoring of Nematofauna and Arbuscular Mycorrhizal Fungi in a Caatinga Area and in the Adjacent Culture

Monitoring of Nematofauna and Arbuscular Mycorrhizal Fungi in a Caatinga Area and in the Adjacent Culture

Molecular Diversity and Distribution of Arbuscular Mycorrhizal Fungi at Different Elevations in Mt. Taibai of Qinling Mountain

Fungal Ecology Special Issue: Editorial

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