Colonização micorrízica arbuscular e tolerância ao mal-do-Panamá em mudas de banana-maçã

Sampaio, Deusiane Batista; Filho, Paulo Furtado Mendes; Mascena, Aldênia Mendes; Gomes, Vânia Felipe Freire; Guimarães, Francisco Valderez Augusto

doi:10.1590/s1806-66902012000300007

Cited by 5 publications

(3 citation statements)

References 17 publications

(9 reference statements)

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“…In banana cv. Maçã, the application of a bio-fertilizer promoted abundant mycorrhizal colonization and was associated to lower expression of FWB symptoms, compared to applications of the Hoagland solution at three concentrations (non-fertilized control was not established) (Sampaio et al, 2012). However, inconsistent results obtained with AMF have been a common experience.…”

Section: Biological Control Agents and Their Modes Of Action: Actual mentioning

confidence: 99%

Biological Control Agents Against Fusarium Wilt of Banana

et al. 2019

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In the last century, the banana crop and industry experienced dramatic losses due to an epidemic of Fusarium wilt of banana (FWB), caused by Fusarium oxysporum f.sp. cubense ( Foc ) race 1. An even more dramatic menace is now feared due to the spread of Foc tropical race 4. Plant genetic resistance is generally considered as the most plausible strategy for controlling effectively such a devastating disease, as occurred for the first round of FWB epidemic. Nevertheless, with at least 182 articles published since 1970, biological control represents a large body of knowledge on FWB. Remarkably, many studies deal with biological control agents (BCAs) that reached the field-testing stage and even refer to high effectiveness. Some selected BCAs have been repeatedly assayed in independent trials, suggesting their promising value. Overall under field conditions, FWB has been controlled up to 79% by using Pseudomonas spp. strains, and up to 70% by several endophytes and Trichoderma spp. strains. Lower biocontrol efficacy (42–55%) has been obtained with arbuscular mycorrhizal fungi, Bacillus spp., and non-pathogenic Fusarium strains. Studies on Streptomyces spp. have been mostly limited to in vitro conditions so far, with very few pot-experiments, and none conducted in the field. The BCAs have been applied with diverse procedures (e.g., spore suspension, organic amendments, bioformulations, etc.) and at different stages of plant development (i.e., in vitro , nursery, at transplanting, post-transplanting), but there has been no evidence for a protocol better than another. Nonetheless, new bioformulation technologies (e.g., nanotechnology, formulation of microbial consortia and/or their metabolites, etc.) and tailor-made consortia of microbial strains should be encouraged. In conclusion, the literature offers many examples of promising BCAs, suggesting that biocontrol can greatly contribute to limit the damage caused by FWB. More efforts should be done to further validate the currently available outcomes, to deepen the knowledge on the most valuable BCAs, and to improve their efficacy by setting up effective formulations, application protocols, and integrated strategies.

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Section: Biological Control Agents and Their Modes Of Action: Actual mentioning

confidence: 99%

Biological Control Agents Against Fusarium Wilt of Banana

et al. 2019

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“…Apesar da ausência de efeito da simbiose entre os FMA testados e P. trifoliata e cunquateiro sobre o desenvolvimento vegetativo destes, sabe-se que os FMA têm efeitos benéficos sobre outros fatores, como maior tolerância a estresses abióticos, como déficit hídrico (Wu et al 2011) e bióticos, causados por fungos do solo (Costa et al 2010;Sampaio et al 2012). Estes estudos deverão ser realizados no futuro, pois são recorrentes na citricultura rio-grandense.…”

Section: Porta-enxerto Fma Testemunhaunclassified

Interação entre porta-enxertos de citros e fungos micorrízicos arbusculares

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Giuliani³

et al. 2017

Iheringia Ser Bot

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RESUMO -Os fungos micorrízicos arbusculares (FMA) promovem maior desenvolvimento de plantas, entretanto, a simbiose depende das espécies de ambos os simbiontes. Objetivou-se avaliar a interação entre porta-enxertos cítricos inoculados com espécies de fungos micorrízicos arbusculares. Testou-se três porta-enxertos citrangeiro 'Fepagro C37 Reck' [Poncirus trifoliata (L.) Raf. x Citrus sinensis (L.) Osbeck.], cunquateiro 'Hong-Kong' (Fortunella hindsii Swingle) e 'Trifoliata' (Poncirus trifoliata) inoculados com duas espécies de FMA (Glomus etunicatum W.N. Becker & Gerd. e Acaulospora sp.) e um tratamento não inoculado. Avaliou-se a altura (cm), o diâmetro do caule (mm), a área foliar (cm²/planta), o número de folhas, a massa fresca e seca da raiz e da parte aérea (g), o teor de reservas nos tecidos e a colonização dos FMA nas raízes. As espécies G. etunicatum e Acaulospora sp. colonizaram as raízes dos porta-enxertos, mas somente foram efi cientes para o 'Fepagro C37 Reck'. Poncirus trifoliata apresentou maior vigor em ausência de FMA. Palavras-chave: endomicorrizas, produção de mudas, simbioseABSTRACT -Interaction between rootstocks citrus and arbuscular mycorrhizal fungi. Arbuscular mycorrhizal fungi (AMF) support plant development, however, symbiosis depends on species of both symbionts. This study aimed to evaluate the interaction between rootstock citrus inoculated with species of arbuscular mycorrhizal fungi. Three rootstocks citrange 'Fepagro C37 Reck' [Poncirus trifoliata (L.) Raf. x Citrus sinensis (L.) Osbeck.], 'Hong-Kong' kumquat (Fortunella hindsii Swingle) and 'Trifoliata' (Poncirus trifoliate) were tested, inoculated with two species of AMF (Glomus etunicatum W.N. Becker & Gerd.and Acaulospora sp.) and a treatment not inoculated. We evaluated the height (cm), stem diameter (mm), leaf area (cm² / plant), leaf number, fresh and dry root and shoot weight (g), the level of reserves in tissues and the colonization of AMF in the roots. The species G. etunicatum and Acaulospora sp. colonized the roots of rootstocks, but they were only eff ective for 'Fepagro C37 Reck'. Poncirus trifoliata had the highest vigor in the absence of AMF.

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“…O mal-do-Panamá é a doença vascular gerada pelo fungo do solo, Fusarium oxysporum, sendo o mesmo responsável por comprometer a produtividade da bananeira, causando amarelecimento e murcha de plantas (Sampaio et al, 2012). A sua sobrevivência ocorre em restos de cultura, como parasita em hospedeiros nativos e no solo a partir de estruturas de resistência chamadas de clamidósporos (CORDEIRO, et al 2004).…”

Section: Introductionunclassified

Use of essential oils in the control of the fungus Fusarium oxysporum isolated in northern MT

et al. 2020

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Banana is one of the most consumed fruits in the world, with high nutritional value, unparalleled flavor and affordable price. However, banana can be affected by numerous diseases, and Panamanian malaria is a pathogen caused by Fusarium oxysporum, with great impact on the culture. In order to find efficient and sustainable methods to control this phytopathogen, the present work aims to evaluate the antifungal activity of different vegetable oils. The experiment was carried out in the Microbiology Laboratory of the State University of Mato Grosso, Alta Floresta - MT, installed in a completely randomized design with 5 treatments, 4 vegetable oils (melaleuca, eucalyptus, citronella, mint) and the control Fusarium oxysporum disk) with 5 replicates. The measured essential oils were incorporated into the BDA culture medium at the concentration of 0.6% and the treatments were poured into Petri dishes. Subsequently, a 9 mm disk of pure phytopathogens was inserted into each plate. The plates were redirected to BOD, with a temperature of 25C ° and photoperiod 12/12 hours. The evaluation began after 24 hours, with measurements of the diameter of the colonies made up to the ninth day. These data were used in the calculation of mycelial growth rate index (IVCM) and percentage of growth inhibition (PIC) and finally submitted to analysis of variance, being observed that the oils have different effects between them. Thus, after the test of comparison of means, it was observed that the oils of melaleuca and eucalyptus are similar with the control, that is, they are not efficient in the control of the fungus in question since they present high IVCM. Citronella and mint oils demonstrated efficacy in the control of the pathogen, with a low IVCM value and high PIC value

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Colonização micorrízica arbuscular e tolerância ao mal-do-Panamá em mudas de banana-maçã

Cited by 5 publications

References 17 publications

Biological Control Agents Against Fusarium Wilt of Banana

Biological Control Agents Against Fusarium Wilt of Banana

Interação entre porta-enxertos de citros e fungos micorrízicos arbusculares

Use of essential oils in the control of the fungus Fusarium oxysporum isolated in northern MT

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