Detecção de fungos micorrízicos arbusculares em raízes de cafeeiro e de crotalária cultivada na entrelinha

Filho, Arnaldo Colozzi; Cardoso, E. J. B. N.

doi:10.1590/s0100-204x2000001000015

Cited by 24 publications

(12 citation statements)

References 23 publications

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“…OC CURRENCE IN COFFEA Like many crops, coffee associates symbiotically with AMF (Sieverding 1991). Numerous studies have shown the natural occurrence of AMF in the soils of coffee orchards, as well as the presence of mycorrhizal structures in coffee roots (Lopes et al 1983;Balota & Lopes 1996;Pavan et al 1999;Colozzi-Filho & Cardoso 2000;Theodoro et al 2003;Muleta et al 2007). Lopes et al (1983) identified 22 AMF species in coffee rhizosphere soil from a Brazilian coffee production region; the most frequent AMF genera found were Acaulospora and Glomus.…”

Section: Ar Busc Ula R M Yco Rr Hi Zamentioning

confidence: 99%

Arbuscular mycorrhizal association in coffee

et al. 2009

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SU MMARYDespite previous research on mycorrhizal association with plants, the data on associations with coffee (Coffea species) are very sparse despite the great economic importance of this crop for many tropical developing countries. The present paper reviews the main aspects of the association between arbuscular mycorrhizal fungi (AMF) and coffee plants. This review includes topics on mycorrhizal effects on coffee nutritional status, pathogen-AMF interactions and responses to several environmental stresses. It also summarizes findings about the natural occurrence of AMF in different soils in which coffee is cultivated, some ecological aspects of this specific association and outlines trends for future investigations, which must elucidate the real benefits of mycorrhizae to coffee plants.

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Section: Ar Busc Ula R M Yco Rr Hi Zamentioning

confidence: 99%

Arbuscular mycorrhizal association in coffee

et al. 2009

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“…É amplamente aceita e documentada na literatura a capacidade dos FMAs de incrementar a absorção de nutrientes e água da planta à qual estejam associados. As hifas fúngicas aumentam a absorção de nutrientes minerais, como o fósforo e o nitrogênio, importantes para o crescimento e desenvolvimento das plantas (Colozzi Filho & Cardoso, 2000;Moreira & Siqueira, 2006;Zsögön, 2006;Silveira & Freitas, 2007;Azevedo, 2008;Cardoso et al, 2010;Siqueira et al, 2010).…”

Section: Introductionunclassified

Avaliação da interação micorrízica em cultivares de oliveira (Olea europea L.)

Vieira¹,

Melloni²,

Neto³

2011

Rev. Bras. Ciênc. Solo

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A maioria dos estudos com oliveira no Brasil e no mundo tem sido direcionada à produção e ao manejo. Apesar da importância para o crescimento vegetal e resistência a estresses diversos, não há estudos sobre a ocorrência de associação micorrízica em oliveira, no Brasil. O objetivo do presente trabalho foi avaliar a interação micorrízica em cultivares de oliveira na Fazenda Experimental de Maria da Fé - MG (FEMF - EPAMIG), a qual serve como ponto de partida na produção de inoculantes comerciais de fungos micorrízicos arbusculares para a cultura. Amostras de solo e de raízes de sete cultivares de oliveira foram coletadas para determinação do comprimento de micélio extrarradicular ativo e total e avaliação da percentagem e intensidade de colonização micorrízica, bem como da densidade e diversidade de esporos. Nas rizosferas das cultivares de oliveira, foram isoladas nove espécies de fungos micorrízicos: Acaulospora denticulata, Acaulospora scrobiculata, Acaulospora sp1, Acaulospora sp2, Entrophospora sp1, Gigaspora sp1, Glomus mosseae, Scutellospora pellucida e Scutellospora sp1. Os resultados comprovaram o micotrofismo da espécie. No entanto, não houve efeito das cultivares na distribuição dos propágulos de FMAs, os quais estiveram homogeneamente distribuídos nas diferentes rizosferas.

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“…Similar results were obtained in the present study. Even though Glomus diaphanum is commonly described as a species with low acidity tolerance (COLOZZI-FILHO; CARDOSO, 2000), it was the second most abundant in the soil before the start of the present study (18.45%), and its percentage in the soil was slightly affected by all genotypes (varying between 0.88% and 3.2%, whereas Entrophospora colombiana varied between 45.23% and 8.56%).…”

Section: Hybridsmentioning

confidence: 55%

Mycorrhizal colonization and diversity and corn genotype yield in soils of the Cerrado region, Brazil

Aquino

Scabora

Andrade

et al. 2015

SCA

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The degree of interaction between arbuscular mycorrhizal fungi (AMF) and host plants appears to depend on plant genotype, which differentially promotes symbiosis and leads to different degree of mycotrophism. The aim of the present study was to assess root colonization, spore density, and diversity of AMF, as well as yield of corn (Zea mays) genotypes in soil from the Cerrado region of Brazil. Number of spores (NS), mycorrhizal colonization (COL), plant and ear height, dry weight (DW), and grain yield (GY) were assessed in inbred lines and their hybrids. Randomized blocks were used for the experimental design, with 30 treatments (genotypes) and three repetitions. The experiment was conducted on the farm of the UNESP-São Paulo State University, Campus of Ilha Solteira, and the plots were composed of two 2-m-long rows, with 0.85 m between rows, and 0.20 m between plants. Qualitative and quantitative changes were observed in fungal compositions, as well as preferential associations between symbiotic partners. Analysis of AMF diversity revealed the presence of 12 species, with Scutellospora calospora and Entrophospora colombiana being the most abundant in all treatments. The species Acaulospora longula, Glomus etunicatum, Glomus macrocarpum, and Gigaspora margarita exhibited preferential associations with certain genotypes. COL and GY differed among inbred lines and single-cross hybrids and the significant correlations between COL and the DW and GY showed positive interactions between the plants and AMF. There was no correlation between heterosis for GY and heterosis for colonization. These single-cross hybrids HS83 × E3 and D3 × F5 exhibited high GY, evidencing a productivity potential for the low technological condition used. experimental foi em blocos casualizados, com 30 tratamentos (genótipos) e três repetições. O experimento foi implantado na Fazenda de Pesquisa, Ensino e Extensão da UNESP-Univ Estadual Paulista, Campus de Ilha Solteira, sendo as parcelas constituídas de duas linhas de 2 m de comprimento, espaçadas de 0,85 m entre linhas e 0,20 m entre plantas. Observou-se a ocorreram mudanças qualitativas e quantitativas na composição fúngica, com associações preferenciais entre os genótipos. Para diversidade de FMA foram constatadas 12 espécies, sendo Scutellospora calospora e Entrophospora colombiana as espécies de maior ocorrência para todos os tratamentos. As espécies Acaulospora longula, Glomus etunicatum, Glomus macrocarpum e Glomus margarita exibiram associações preferenciais entre os genótipos. A COL e a PROD diferiram entre linhagens e entre híbridos e as correlações significativas entre COL e a MS e PROD evidenciam interações positiva entre planta e FMA. A heterose para PROD não mostrou correlação com a heterose da colonização. Os híbridos HS83 x E3 e D3 x F5 exibiram alta PROD, evidenciando um potencial produtivo para as condições tecnológicas utilizadas.

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Detecção de fungos micorrízicos arbusculares em raízes de cafeeiro e de crotalária cultivada na entrelinha

Cited by 24 publications

References 23 publications

Arbuscular mycorrhizal association in coffee

Arbuscular mycorrhizal association in coffee

Avaliação da interação micorrízica em cultivares de oliveira (Olea europea L.)

Mycorrhizal colonization and diversity and corn genotype yield in soils of the Cerrado region, Brazil

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