Interaction of Arbuscular Mycorrhizal Fungi and the Soil Pathogen Fusarium Oxysporum F. Sp. Cubense on the First Stages of Micropropagated Grande Naine Banana

Jaizme-Vega, M. C.; Hernandez, B. S.; Hernandez, J. M. Hernandez

doi:10.17660/actahortic.1998.490.28

Cited by 25 publications

(17 citation statements)

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“…Pre-inoculation of plants with AM fungi attenuated the detrimental effect of the pathogen. These results corroborate previous studies involving other plants grown in the presence of root pathogenic fungi, as these plants were less affected when colonized with AM fungi (Jaizme et al, 1998;Abdalla and Abdel Fattah, 2000). The development of root-rot symptoms on bananas was considerably affected by the presence of AM fungi.…”

Section: Protection Of Host Roots From Pathogenssupporting

confidence: 91%

“…AM symbiosis is mutualistic interaction between plant roots and soil fungi that is considered beneficial to the plant because of the increased uptake of phosphorus and other scarcely mobile nutrients by mycorrhizal plants. Several investigations have demonstrated their positive impact on nutrient uptake and growth of banana (Jaizme-Vega and Azcon, 1995;Yano-Melo et al, 1999), improved resistance to abiotic stresses (Rufyikiri et al, 2000;Ruiz-Lozano, 2003) and biotic stresses caused by nematodes (Jaizme-Vega et al, 1997;Elsen et al, 2001) and Fusarium oxysporum f. sp cubense, the causal agent of panama disease (Jaizme-Vega et al, 1998).…”

Section: Protection Of Host Roots From Pathogensmentioning

confidence: 99%

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Arbuscular mycorrhizal networks: process and functions. A review

Garg

Chandel

2010

Agron. Sustain. Dev.

155

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-An unprecedented, rapid change in environmental conditions is being observed, which invariably overrules the adaptive capacity of land plants. These environmental changes mainly originate from anthropogenic activities, which have aggravated air and soil pollution, acid precipitation, soil degradation, salinity, contamination of natural and agro-ecosystems with heavy metals such as cadmium (Cd), lead (Pb), mercury (Hg), arsenic (As), global climate change, etc. The restoration of degraded natural habitats using sustainable, low-input cropping systems with the aim of maximizing yields of crop plants is the need of the hour. Thus, incorporation of the natural roles of beneficial microorganisms in maintaining soil fertility and plant productivity is gaining importance and may be an important approach. Symbiotic association of the majority of crop plants with arbuscular mycorrhizal (AM) fungi plays a central role in many microbiological and ecological processes. In mycorrhizal associations, the fungal partner assists its plant host in phosphorus (P) and nitrogen (N) uptake and also some of the relatively immobile trace elements such as zinc (Zn), copper (Cu) and iron (Fe). AM fungi also benefit plants by increasing water uptake, plant resistance and biocontrol of phytopathogens, adaptation to a variety of environmental stresses such as drought, heat, salinity, heavy metal contamination, production of growth hormones and certain enzymes, and even in the uptake of radioactive elements. The establishment of symbiotic association usually involves mutual recognition and a high degree of coordination at the morphological and physiological level, which requires a continuous cellular and molecular dialogue between both the partners. This has led to the identification of the genes, signal transduction pathways and the chemical structures of components relevant to symbiosis; however, scientific knowledge on the physiology and function of these fungi is still limited. This review unfolds our current knowledge on signals and mechanisms in the development of AM symbiosis; the molecular basis of nutrient exchange between AM fungi and host plants; and the role of AM fungi in water uptake, disease protection, alleviation of various abiotic soil stresses and increasing grain production.

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Section: Protection Of Host Roots From Pathogenssupporting

confidence: 91%

Section: Protection Of Host Roots From Pathogensmentioning

confidence: 99%

Arbuscular mycorrhizal networks: process and functions. A review

Garg

Chandel

2010

Agron. Sustain. Dev.

155

View full text Add to dashboard Cite

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“…Vários trabalhos têm demonstrado o potencial da utilização de FMA em agir na resistência ou tolerância de diferentes espécies de plantas a patógenos do solo, incluindo diferentes formae specialis de Fusarium (Bodker et al, 1998;Matsubara et al, 2001Matsubara et al, , 2004Garmendia et al, 2004), podendo fazer parte de um controle integrado de doenças. Quanto à bananeira, há relatos semelhantes do uso de FMA para o controle de FOC (Jaizme-Vega et al, 1997;Smith et al, 1999;Habeeba et al, 2003). Este efeito protetor dos FMA envolve diversos mecanismos de defesa da planta, tais como a produção de fitoalexinas, quitinases, compostos fenólicos; modificações anatômicas e fisiológicas; liberação de exsudados que estimulam o aparecimento de microrganismos antagônicos; competição por fotossintatos ou sítio de infecção/colonização (Azcón-Aguilar & Barea, 1996).…”

Section: Resultsunclassified

“…promoveu maior crescimento e reduziu sintomas internos (necrose do rizoma) e externos provocados por F. oxysporum f.sp. cubense (Jaizme-Vega et al, 1997 O experimento foi realizado em duas etapas. Na primeira, inoculou-se o FMA G. margarita e, na segunda, inoculou-se o FOC nas mesmas plantas.…”

Section: Introductionunclassified

Redução do mal-do-panamá em bananeira-maçã por inoculação de fungo micorrízico arbuscular

Borges

Trindade²,

Matos³

et al. 2007

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar o efeito da densidade de inóculo de fungo micorrízico arbuscular (FMA) na incidência e severidade do Fusarium oxysporum f. sp. cubense (FOC) na bananeira, variedade 'Maçã', em fase inicial de desenvolvimento vegetativo. O trabalho foi realizado em três etapas, em condições de casa de vegetação, na Embrapa Mandioca e Fruticultura Tropical, Cruz das Almas, BA. Foi realizado um teste de ajuste para determinação das densidades de inóculo do FMA a serem utilizadas. Em seguida, o FMA, Gigaspora margarita, foi inoculado nas mudas de banana e, depois de 60 dias foi inoculado o FOC. G. margarita apresentou eficiência simbiótica no crescimento das mudas de bananeira, variedade Maçã, dependendo da densidade de inóculo. A inoculação prévia com o FMA promoveu redução no índice de infecção causado pelo FOC. A pré-colonização das plantas de bananeira pelo FMA resultou em efeito de bioproteção, modulado pela taxa de colonização micorrízica e pela concentração de inóculo do FOC no solo.Termos para indexação: Musa sp., Gigaspora margarita, murcha-de-fusário, biocontrole, fusariose. Reduction of fusarium wilt of "banana-maçã" by inoculation of arbuscular mycorrhizal fungiAbstract -This work aimed to evaluate inoculum density of arbuscular mycorrhizal fungi (AMF) on incidence and effects of Fusarium oxysporum f. sp. cubense (FOC) on Maçã variety of banana (Musa sp.) during its initial growth. An experiment was conducted at Embrapa Mandioca e Fruticultura Tropical, under greenhouse conditions, comprising three stages: a test to adjust levels of inoculum of AMF to be set on the experiment was carried out; therefore, plantlets of banana were inoculated with Gigaspora margarita and, after 60 days, they were inoculated with FOC. G. margarita was efficient for growth of banana plantlets; previous inoculation of AMF reduced disease index caused by FOC, depending on level of inoculum of AMF; previous inoculation of AMF on banana plantlets resulted in bioprotection to FOC, related to level of colonization and level of inoculum of FOC in soil.

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“…Besides, these fungi have also been shown to provide physical barrier against invading pathogens and thus reduce disease severity in short-term green house studies. The application of Glomus spp to micropropagated banana plantlets (Grand Naine) reduced the internal and external symptoms of Foc race 4 and enhanced plant development and nutrient uptake of the plants (Jaizme-vega et al 1998). Jie et al (2009) re-introduced mixture of naturally-occurring uncultivated endophytes (dominated byProteobacteria) isolated from native healthy banana plant into tissue culture banana plantlets led to 67% suppression rate of wilt disease at the fifth month after pathogen infection on plantlets in the greenhouse.…”

Section: Biocontrol Agents For Tissue Cultured Plantsmentioning

confidence: 99%