Hospedeiros e ciclos sucessivos de multiplicação afetam a detecção de fungos micorrízicos arbusculares em áreas impactadas por mineração gesseira

Mergulhão, Adália Cavalcanti do Espírito Santo; Figueiredo, Márcia do Vale Barreto; Burity, Hélio Almeida; Maia, Leonor Costa

doi:10.1590/s0100-67622009000200004

Cited by 6 publications

(4 citation statements)

References 20 publications

(16 reference statements)

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“…Some species of Acaulospora, Gigaspora, Scutellospora and Glomus were not identifi ed at the specifi c level and many constitute undescribed species. Many Glomus species have been found in semiarid areas, including some impacted by mining (Caproni et al 2003;Silva et al 2005;Mergulhão et al 2009). …”

Section: Discussionmentioning

confidence: 99%

“…The fi rst records of AMF were from agricultural ecosystems (Maia & Trufem 1990) and since then, other investigations in cultivated areas (Weber et al 2004), impacted areas (Silva et al 2005;Mergulhão et al 2009), native areas with "caatinga" vegetation and in fragments of Atlantic Forest (Goto & Maia 2005) have been done, increasing our knowledge of AMF diversity in the region (Maia et al 2006).…”

Section: Introductionmentioning

confidence: 99%

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Diversity of arbuscular mycorrhizal fungi in a gypsum mining impacted semiarid area

et al. 2010

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RESUMO -(Diversidade de fungos micorrízicos arbusculares em áreas impactadas por mineração gesseira no semiarido). O objetivo deste trabalho foi avaliar o efeito do impacto produzido por mineração de gesso sobre a ocorrência e diversidade de fungos micorrízicos arbusculares (FMA). Amostras de solo foram coletadas nos períodos chuvoso e seco, em quatro áreas de mineração de gesso: caatinga nativa preservada (CN); arredores da mina (AM); área de rejeito (AR) e interface entre o depósito (rejeito) e uma área de caatinga degradada pela mineração (AI). Quarenta e duas espécies de plantas foram identifi cadas nas áreas; algumas não estavam presentes em ambos os períodos. Trinta e seis táxons de FMA foram identifi cados: 31 no período chuvoso e 31 no seco, com diferenças na composição de espécies. A atividade de mineração reduziu a diversidade de plantas e de FMA nas três áreas de mineração, comparando com a CN. Baixo índice de similaridade de plantas foi observado entre a CN e as áreas degradadas. Menor similaridade entre espécies de FMA foi observada no período chuvoso e entre a CN e as áreas impactadas. Glomus intraradices, Glomus sp.1 e Paraglomus occultum foram as espécies mais comumente encontradas, mostrando tolerância às condições edáfi cas nas áreas impactadas. Estas espécies devem ser testadas em programas de revegetação em áreas similarmente impactadas por mineração de gesso. Palavras chave: área degradada, gesso, micorriza, taxonomia ABSTRACT -(Diversity of arbuscular mycorrhizal fungi in a gypsum mining impacted semiarid area). The aim of this work was to evaluate the impact of gypsum mining on the occurrence and diversity of arbuscular mycorrhizal fungi (AMF). Soil samples were collected in the rainy and dry periods in four areas of a gypsum mine: native preserved "caatinga" (NC); mine vicinity (MS); reject area (RA); interface between the reject area and an area of "caatinga" degraded by mining (IN). Forty two plant species were identifi ed in these areas; some were not found in both collection periods. Thirty six taxa of AMF were identifi ed: 31 in the rainy and 31 in the dry period, with different species composition. Mining activity reduced diversity of plants and of AMF in the three mining areas when compared to NC. Plant similarity indexes were low between NC and the degraded areas. Similarity among AMF species was lower in the rainy period and between NC and the ones affected by mining. Glomus intraradices, Glomus sp.1 and Paraglomus occultum were the most common AMF, showing tolerance of edaphic conditions in the impacted areas. These species should be further tested in programs of revegetation of similar gypsum mining degraded areas.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Diversity of arbuscular mycorrhizal fungi in a gypsum mining impacted semiarid area

et al. 2010

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“…Therefore, multiplication of the indigenous fungi in host plants under controlled conditions is an alternative for triggering sporulation of cryptic AMF species. This procedure is known as trap culture and has been widely used in AMF ecological studies (Bever et al 1996, Stutz and Morton 1996, Stürmer 1998, Leal et al 2009, Mergulhão et al 2009). It usually gives large number of viable spores containing all morphological structures for an accurate identification and detection of nonsporulating AMF species.…”

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confidence: 99%

Assessment of the occurrence and richness of arbuscular mycorrhizal fungal spores by direct analysis of field samples and trap culture - a comparative study

Leal

Carvalho

Siqueira

et al. 2018

An. Acad. Bras. Ciênc.

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In this work, we hypothesized that two spore-based methods, direct analysis of field samples and trap cultures, simultaneously used for assessment of occurrence and species richness of arbuscular mycorrhizal fungi (AMF) may vary in their efficiency according to the environmental conditions and the total AMF species richness of the evaluated ecosystem. The performance of both methods was analyzed based on two datasets: 1) a complete site x species matrix compiled from two studies in different land uses in the Amazon using direct analysis of field samples and trap cultures. 2) Total number of AMF morphotypes detected by both methods in published manuscripts across several ecosystems. From dataset 1, direct analysis of field samples revealed 57 morphotypes, whereas only 21 of these were detected by trap culture. Community variation (beta diversity) analysis revealed that field samples are far more sensitive in detecting shifts in AMF community composition among land uses than trap cultures in the Amazon region, with the combined results of both methods being not better than that obtained only by direct analysis of field samples. Analysis of dataset 2 showed that the relative performance of trap cultures, using direct analysis of field sample as reference, was inversely related to the total observed AMF species richness.

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“…This result might be related to the incompatibility between AMF taxa and the host plant (host preference) and/or AMF taxa and growing conditions (environmental preference) (Jansa et al, 2002(Jansa et al, , 2014Trejo-Aguilar et al, 2013). Despite that, some species that had not been found in the respective field soil samples were detected from trap culture samples, indicating the complementarity of that approach to more comprehensively determine AMF species richness in an environment (Mergulhão et al, 2009;Błaszkowski and Czerniawska, 2011).…”

Section: Discussionmentioning

confidence: 99%

Changes in arbuscular mycorrhizal fungal communities along a river delta island in northeastern Brazil

Silva

Souza

et al. 2017

Acta Oecologica

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Arbuscular mycorrhizal fungi (AMF) play a key role in the maintenance of the balance of terrestrial ecosystems, but little is known about the biogeography of these fungi, especially on tropical islands. This study aims to compare AMF community structure along a transect crossing a fluvial-marine island and relate these communities with soil and vegetation parameters to shed light on the forces driving AMF community structure on a local scale. We tested the hypothesis that the composition of AMF communities changes across the island, even within short distances among sites, in response to differences in edaphic characteristics and vegetation physiognomies. We sampled roots and soils in five different natural and degraded habitats: preserved mangrove forest (MF), degraded mangrove forest (MD), natural Restinga forest (RF), and two regeneration Restinga forests (RR1 and RR2) on Ilha da Restinga, northeastern Brazil. We determined the mycorrhizal colonization rate and AMF community structure based on morphological spore identification. The island soils were sandy with pH varying from acid to neutral; higher levels of organic matter were registered in RF and lower in MF; other chemical and physical soil attributes differed along the habitat types on the island. In total, 22 AMF species were identified, without any difference in species richness. However, the diversity and composition of AMF communities, spore abundance per families, and mycorrhizal colonization were statistically different among the habitats. The composition of AMF communities was strongly related to soil characteristics, especially the sum of exchangeable bases. Our results indicate that the different habitat types have diverse AMF communities even within short distances among habitats. In conclusion, islands with high spatial heterogeneity in soil parameters and diverse vegetation are potential refuges for the diversity conservation of AM fungi.

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Hospedeiros e ciclos sucessivos de multiplicação afetam a detecção de fungos micorrízicos arbusculares em áreas impactadas por mineração gesseira

Cited by 6 publications

References 20 publications

Diversity of arbuscular mycorrhizal fungi in a gypsum mining impacted semiarid area

Diversity of arbuscular mycorrhizal fungi in a gypsum mining impacted semiarid area

Assessment of the occurrence and richness of arbuscular mycorrhizal fungal spores by direct analysis of field samples and trap culture - a comparative study

Changes in arbuscular mycorrhizal fungal communities along a river delta island in northeastern Brazil

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