Arbuscular mycorrhizal fungal diversity along a Tibetan elevation gradient

Gai, Jingping; Tian, Hui; Yang, Fan; Christie, Peter; Li, X.L.; Klironomos, John N.

doi:10.1016/j.pedobi.2011.12.004

Cited by 101 publications

(95 citation statements)

References 31 publications

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“…3). We disagree with the conclusion of Gai et al (2012) that a general pattern of AMF diversity and abundance over gradients in elevation can be detected worldwide. Our results along with recently published studies (Li et al 2014;Coutinho et al 2015) contrast with the patterns found by others (Lugo et al 2008;Schmidt et al 2008), thus suggesting that the variation in spore abundance and species richness over altitude gradients is, in fact, site-dependent and that variable conditions among those common to mountain environments -e. g., low temperatures, rainfall and moisture regimes, and frostinginfluence the abundance and richness of AMFs in different ways.…”

Section: Discussioncontrasting

confidence: 99%

“…For example, spore abundance has been found to decrease with increasing elevation (Gai et al 2012) but also to pass through a maximum at an intermediate altitude (Li et al 2014;Coutinho et al 2015). AMF species richness furthermore has been reported as not affected (Li et al 2014) or decreasing (Lugo et al 2008;Gai et al 2012) with increased elevation or has been observed to peak at intermediate altitudes in an altitude gradient (Coutinho et al 2015). In contrast, the present study has indicated no correlation between AMF spore number and species richness with increasing altitude (Fig.…”

Section: Discussioncontrasting

confidence: 77%

“…Studies with AMF distribution over altitude gradients in particular, however, exhibit a contrasting pattern with respect to spore abundance and species richness. For example, spore abundance has been found to decrease with increasing elevation (Gai et al 2012) but also to pass through a maximum at an intermediate altitude (Li et al 2014;Coutinho et al 2015). AMF species richness furthermore has been reported as not affected (Li et al 2014) or decreasing (Lugo et al 2008;Gai et al 2012) with increased elevation or has been observed to peak at intermediate altitudes in an altitude gradient (Coutinho et al 2015).…”

Section: Discussionmentioning

confidence: 99%

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Occurrence of arbuscular mycorrhizal fungi in high altitude sites of the Patagonian Altoandina region in Nahuel Huapi National Park (Argentina)

et al. 2016

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Knowledge of the occurrence and diversity of arbuscular mycorrhizal fungi (AMF) in National Parks is essential for the establishment of policies for conservation. Th e aim of this study was to characterize the AMF communities in the Patagonian Altoandina region in Nahuel Huapi National Park, Argentina. We surveyed AMF spores associated with the rhizospheres of 9 plant species in the Patagonian Steppe (PS), Challhuaco Hill (ChH), Catedral Hill (CH), and Tronador Hill (TH) regions and detected a total of 27 Glomeromycota species. Acaulospora laevis was dominant at all sites. Th e AMF community was dominated by Acaulosporaceae, as regards the number of species and contribution of each one to the total number of spores. Th ree Glomeromycota families were detected at PS, the site with the lowest elevation; whereas fi ve to six families were detected at ChH, CH, and TH. Cluster analysis indicated that the AMF communities were grouped according to habitat. We concluded that certain patterns of the AMFcommunity structure detected were equivalent to those of high-altitude environments from other studies, while others were unique to the Patagonian region; thus suggesting that historical infl uences like dispersion and speciation played a critical role in shaping AMF community composition in such high-altitude environments.

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Section: Discussioncontrasting

confidence: 99%

Section: Discussioncontrasting

confidence: 77%

Section: Discussionmentioning

confidence: 99%

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Occurrence of arbuscular mycorrhizal fungi in high altitude sites of the Patagonian Altoandina region in Nahuel Huapi National Park (Argentina)

et al. 2016

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“…The very frequent appearance of Acaulospora spp. in the Andes might directly or indirectly be related to altitude, since members of this genus were also frequently reported at altitudes around 3,000 m in the Alps and in the Chilean Andes (Oehl et al 2006(Oehl et al , 2011, as well as at up to 3,520 m in the South American Puna grassland (Lugo et al 2008) and at the Tibetan Plateau (Li et al 2014;Gai et al 2012). Due to their high abundance (RA) and frequency of occurrence (FO), we considered these Acaulospora spp.…”

Section: Amf Species Associated With Potatomentioning

confidence: 99%

A conserved arbuscular mycorrhizal fungal core-species community colonizes potato roots in the Andes

Senés‐Guerrero

Schüßler

2015

Fungal Diversity

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Plant-symbiotic arbuscular mycorrhizal fungi (AMF) are of high global ecological and economic importance, but describing environmental communities of AMF at the species level remains a challenge, despite the need to understand AMF-plant preferences and to apply AMF in sustainable agriculture. Here, the potato-associated AMF species community composition was assessed for three Andean countries along an altitudinal gradient and at different plant stages, by using 454 GS-FLX+ sequencing of a 760 bp LSU rRNA gene PCR amplicon. Two methods were compared: defining OTUs based on a simple sequence similarity threshold, or affiliating reference sequences to species based on a high throughput phylogenetic annotation approach using an evolutionary placement algorithm (EPA). The EPA-based approach was not only more precise, but also fundamental to robustly unveil the AMF species community composition. The principal advantage of this approach was also demonstrated by using artificially constructed datasets based on validated public database sequences. The affiliation of sequence reads to species using phylogenetic annotation revealed a surprisingly conserved AMF core-species community structure in Andean potatoes, regardless of different plant stages and environmental factors. In total, 41 species were detected and in some cases more than 25 species were found colonizing an individual root system. Acaulospora species were identified as dominant colonizers, co-occurring with Cetraspora nodosa and certain Claroideoglomus and Rhizophagus species in most potato root samples.

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“…A influência do gradiente altitudinal na colonização por fungos tem sido documentada em diferentes ecossistemas SCHMIDT et al, 2008). Em geral a colonização pelo FMA diminui com o aumento da altitude (GAI et al, 2012), enquanto que a colonização pelos DSE pode aumentar com a elevação (SCHMIDT et al, 2008). Tais respostas de colonização podem estar associadas às características do solo que, como comprovado, é variável ao longo do gradiente de altitude (MARTINS, 2010).…”

Section: Introductionunclassified

Fungos micorrízicos arbusculares e endofíticos dark septate em áreas de Mata Atlântica em um gradiente altitudinal

Bonfim¹

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Arbuscular mycorrhizal fungal diversity along a Tibetan elevation gradient

Cited by 101 publications

References 31 publications

Occurrence of arbuscular mycorrhizal fungi in high altitude sites of the Patagonian Altoandina region in Nahuel Huapi National Park (Argentina)

Occurrence of arbuscular mycorrhizal fungi in high altitude sites of the Patagonian Altoandina region in Nahuel Huapi National Park (Argentina)

A conserved arbuscular mycorrhizal fungal core-species community colonizes potato roots in the Andes

Fungos micorrízicos arbusculares e endofíticos dark septate em áreas de Mata Atlântica em um gradiente altitudinal

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