Diversidade de fungos micorrízicos arbusculares em remanescente florestal impactado (Parque Cinqüentenário - Maringá, Paraná, Brasil)

Santos, Fábio Eduardo Ferreira dos; Carrenho, Rosilaine

doi:10.1590/s0102-33062011000200026

Cited by 16 publications

(10 citation statements)

References 43 publications

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“…The species exclusive to 1400 m, G. gigantea, had not yet been reported in the rupestrian grassland, although it has already been reported in reforested areas (Caproni et al 2003), dune ecosystems (Trufem et al 1989), Caatinga , Atlantic Forest (Santos and Carrenho 2011), and dry forest (Pagano et al 2013), thus exhibiting a broad distribution in Brazil. A. rugosa and P. robigina species, that were exclusive to the altitude of 1000 m, have already been recorded in the rupestrian grasslands in Serra do Cipó (Carvalho et al 2012).…”

Section: Discussionmentioning

confidence: 99%

Variation of arbuscular mycorrhizal fungal communities along an altitudinal gradient in rupestrian grasslands in Brazil

et al. 2015

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Variation in arbuscular mycorrhizal fungi (AMF) communities is described for the first time in rupestrian grasslands in Brazil along an altitudinal gradient of 700 m (800 to 1400 m a.s.l.). Hypotheses tested were that soil properties influence the variation in AMF communities and that the frequency of the most common species of AMF is inversely influenced by the richness of other AMF. Field and laboratory data were collected on AMF community composition, richness, density, and frequency in the altitudinal gradient, and the relationships with several physical-chemical soil properties and altitude were evaluated. Fifty-one species of AMF were recorded, with 14 species being reported as possibly new to science and nine species representing new records for Brazil. This single elevation gradient alone contains 22% of the known world diversity of AMF. Soil properties and AMF community density and richness varied significantly along the elevation (p < 0.05). AMF density and richness were higher at the intermediate altitude, while AMF species composition differed statistically among the altitudes.

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Section: Discussionmentioning

confidence: 99%

Variation of arbuscular mycorrhizal fungal communities along an altitudinal gradient in rupestrian grasslands in Brazil

et al. 2015

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“…Silva et al (2012), avaliando a comunidade de FMAs em áreas revegetadas após extração de argila, encontraram uma maior abundância de esporos em uma área degradada com vegetação espontânea (24,5 esporos.g -1 solo), quando comparada a locais com plantios de eucalipto (Eucalyptus camaldulensis), com 3,3 esporos.g -1 solo, e de leguminosa (Acacia mangium), com 7,7 esporos.g -1 solo. A abundância de esporos apresentou alta correlação com o pH do solo (r=0,80; p<0,10) e com os macronutrientes do solo, como fósforo (r = -0,97; p <0,10), potássio (r = 0,99; p<0,01) e magnésio (r = 0,97; p<0,10), conforme apresentado por Santos & Carrenho (2011), para correlações da abundância de esporos com o fósforo e com o potássio, e por Ferreira et al 2012 De uma forma geral, o gênero Glomus apresentou ocorrência predominante nas diferentes coberturas florestais. Diferenças na esporogênese e na morfologia dos esporos (cor, tamanho, estrutura e espessura das paredes) podem ter contribuído para a predominância deste gênero (Santos & Carrenho, 2011).…”

Section: Resultsunclassified

“…A abundância de esporos apresentou alta correlação com o pH do solo (r=0,80; p<0,10) e com os macronutrientes do solo, como fósforo (r = -0,97; p <0,10), potássio (r = 0,99; p<0,01) e magnésio (r = 0,97; p<0,10), conforme apresentado por Santos & Carrenho (2011), para correlações da abundância de esporos com o fósforo e com o potássio, e por Ferreira et al 2012 De uma forma geral, o gênero Glomus apresentou ocorrência predominante nas diferentes coberturas florestais. Diferenças na esporogênese e na morfologia dos esporos (cor, tamanho, estrutura e espessura das paredes) podem ter contribuído para a predominância deste gênero (Santos & Carrenho, 2011). A dominância de um ou mais gêneros de FMAs em determinado ambiente pode ser o resultado da interação de alguns fatores do ambiente, como: as características físicas e químicas do solo, as características morfológicas e fisiológicas das plantas, a compatibilidade genética das espécies de fungos e plantas que ocorrem no local, a dispersão dos fungos e a extinção de algumas espécies do local (Zangaro & Moreira, 2010;Silva et al, 2008).…”

Section: Resultsunclassified

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Fungos Micorrízicos Arbusculares em Diferentes Coberturas Florestais em Vitória da Conquista, Bahia

Santos

Scoriza

Ferreira

2013

Floram

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Os fungos micorrízicos arbusculares (FMAs) são organismos mutualistas obrigatórios, que facilitam a sobrevivência e o desenvolvimento de plantas. São influenciados pela cobertura florestal e por outros fatores bióticos e abióticos. O objetivo deste trabalho foi avaliar a composição e a diversidade dos FMAs em solo sob três diferentes coberturas florestais, em Vitória da Conquista-BA. O plantio de Madeira-nova apresentou maior abundância de esporos que o plantio de Eucalipto. O fragmento de Mata nativa apresentou um grande número de espécies quando comparado com os plantios, sendo seis exclusivas deste local e com potencial de apresentar uma maior diversidade. Os FMAs apresentaram diferenças marcantes de composição e diversidade nas coberturas florestais avaliadas. A grande abundância de esporos e a homogeneidade amostral das espécies no plantio de Madeira-nova são fatores facilitadores para um futuro isolamento de FMAs.

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“…AMF are considered as important components in the recovery and reestablishment of vegetation in degraded areas, as well as in maintaining plant biodiversity and functions of ecosystems. Additionally, they have a relevant nutritional effect on plant growth, for promoting greater absorption of water and nutrients, especially those with low mobility such as phosphorus (P) and copper (Cu), contributing to greater development of plant species (Santos & Carrenho 2011;Silva et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Growth and Morphological Pattern of Mycorrhization in Cowpea [Vigna unguiculata (L.)] Fertilized With Phosphorus

Júnior¹,

Filho²,

Gomes³

et al. 2018

JAS

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Microorganisms perform important functions in the soil and, among these organisms, the role of arbuscular mycorrhizal fungi (AMF) in plant growth should be highlighted. AMF colonize the roots of most plant species and their beneficial functions in plant development include increased absorption of nutrients from the soil, especially those of low mobility such as phosphorus (P). Evaluating agricultural practices conducted by farmers, such as phosphate fertilization, and observing how they will influence AMF activity in benefiting plant growth should be prioritized. Thus, an experiment was conducted in greenhouse to evaluate the effect of phosphate fertilization on the growth of cowpea plants colonized by AMF and to know which morphological pattern of colonization prevails in their roots. Five P doses and a control treatment, without fertilization, were added to the soil. Cowpea plants respond to phosphate fertilization up to the dose of 240.50 mg P kg -1 soil, for shoot dry mass and in the dose of 150 mg P kg -1 soil, for plant height. The morphological pattern observed in the roots was the intermediate type, characterized by the presence of intra and intercellular hyphae and vesicles, and there was no influence of phosphate fertilization on morphology. High P contents added to the soil led to a reduction in mycorrhizal colonization in cowpea roots.The morphological pattern of AMF colonization has been classified as Arum, Paris and intermediate, the latter of which has structures of the first two types. The Paris type has intracellular hyphae, some of which are coiled, and is common in forest plants, whereas the Arum type has intracellular arbuscule and intercellular hypha, present especially in cultivated herbaceous plants. Although the factors influencing the formation of the morphological pattern of mycorrhizal association have not been fully clarified, there is evidence of the importance of this plant species and AMF species in the formation of the predominant pattern in the plant (Dickson, 2004).Nevertheless, it is important to know which morphological pattern of AMF colonization is developing in the host plant because the ability of the fungus to colonize and provide nutrients, such as P, may differ depending on the type of morphological pattern that will develop in the root. Considering the context presented, this study aimed to evaluate the growth and morphological pattern of AMF colonization in cowpea [Vigna unguiculata (L.)] plants cultivated in soil with increasing P doses.

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Diversidade de fungos micorrízicos arbusculares em remanescente florestal impactado (Parque Cinqüentenário - Maringá, Paraná, Brasil)

Cited by 16 publications

References 43 publications

Variation of arbuscular mycorrhizal fungal communities along an altitudinal gradient in rupestrian grasslands in Brazil

Variation of arbuscular mycorrhizal fungal communities along an altitudinal gradient in rupestrian grasslands in Brazil

Fungos Micorrízicos Arbusculares em Diferentes Coberturas Florestais em Vitória da Conquista, Bahia

Evaluation of Growth and Morphological Pattern of Mycorrhization in Cowpea [Vigna unguiculata (L.)] Fertilized With Phosphorus

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