Multiplicação de Bacillus subtilis em vinhaça e viabilidade no controle da meloidoginose, em cana-de-açúcar

Cardozo, Rodrigo B.; Araújo, Fábio Fernando de

doi:10.1590/s1415-43662011001200010

Cited by 12 publications

(5 citation statements)

References 14 publications

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“…produces enzymes, such as chitinases, glucanases and peroxidases, stimulating the plants and increasing the defense-enzyme production (Tian et al, 2007;Velmurugan et al, 2009;Castaneda-Alvarez & Aballay, 2016). There is also reports about the nematode reduction in sugarcane plants due to B. subtillis application in the planting furrow that corroborate with the present study (Cardoso & Araújo, 2011).…”

Section: /7supporting

confidence: 91%

“…Biological control emerges as an effective alternative for plant-parasite nematodes management, since there are many microorganisms with antagonistic potential, such as fungi belonging to the genus Trichoderma and bacteria of the genus Bacillus among them. These fungi and bacteria show high potential in reducing nematodes in many pathosystems (Affokpon et al, 2011;Cardoso & Araújo, 2011;Freitas et al, 2012;Xiang et al, 2017). Both present multiple action forms; Trichoderma spp., for instance, can produce toxic compounds (Sharon et al, 2001) and enzymes linked to phytonematode parasitism (Zhang et al, 2015), causing changes in root exudates and inducing plant-defense mechanisms (Kath et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Biological nematicides associated with biofertilizers in the management of Pratylenchus zeae in sugarcane

Schoen-Neto

Soares

Sorace

et al. 2019

Agraria

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The aim of the present study was to assess Pratylenchus zeae control in sugarcane by using biological nematicides in association, or not, with biofertilizers. Sugarcane pre-sprouted seedlings were transplanted to pots and inoculated with 2 mL of a solution containing 1000 P. zeae in the planting furrows, treated with the combinations based on two biological nematicides, three biofertilizers, and their respective controls, and one absolute control (without treatment or nematode). Results evidenced that biological nematicides based on Trichoderma harzianum and Bacillus spp., when applied alone, promoted reductions in the nematode population of 33.81 and 31.62%, respectively. For nematodes per gram of root, the reductions were 34.67 and 25.38%. On the other hand, biofertilizers efficiency in the nematode reproduction presented variations. However, all treatments reduced nematode penetration in the sugarcane root system, with reductions varying from 31.17 to 53.21%. The same was observed in the mortality test, where nematode mortality ranged from 38.95 to 81.10%. Nematicidas biológicos associados a biofertilizantes no manejo de Pratylenchus zeae em cana-de-açúcarRESUMO: O objetivo do presente estudo foi avaliar o controle de Pratylenchus zeae em cana-de-açúcar utilizando nematicidas biológicos associados ou não a biofertilizantes. Mudas pré-germinadas de cana-de-açúcar foram transplantadas para vasos e inoculadas com 2 mL de solução contendo 1000 P. zeae nos sulcos de plantio, tratadas com as combinações baseadas em dois nematicidas biológicos, três biofertilizantes e as respectivas testemunhas, e um controle absoluto (sem tratamento ou nematoide). Os resultados evidenciaram que os nematicidas biológicos à base de Trichoderma harzianum e Bacillus spp., quando aplicados isoladamente, promoveram reduções na população de nematoides de 33,81 e 31,62%, respectivamente. Para nematoides por grama de raiz, as reduções foram 34,67 e 25,38%. Por outro lado, a eficiência dos biofertilizantes no controle da reprodução do nematoide apresentou variações. Mas, todos os tratamentos reduziram a penetração do nematoide no sistema radicular da cana-de-açúcar, com reduções variando de 31,17 para 53,21%. O mesmo foi observado no teste de mortalidade, cuja mortalidade do nematoide variou de 38,95 a 81,10%. Palavras-chave: controle biológico; hormônios vegetais; nematoide das lesões radiculares; Saccharum officinarumBiological nematicides associated with biofertilizers in the management of Pratylenchus zeae in sugarcane Rev. Bras.

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Section: /7supporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Biological nematicides associated with biofertilizers in the management of Pratylenchus zeae in sugarcane

Schoen-Neto

Soares

Sorace

et al. 2019

Agraria

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“…Este efeito já foi comprovado em estudo de avaliação do controle de meloidoginose em cana-de-açucar, onde B. subtilis controlou efetivamente o parasita e também promoveu o crescimento da planta (Cardozo & Araujo 2011). Esta constatação também foi relatada em outro estudo, com o Bacillus subtilis reduzindo a reprodução de Meloidogyne spp.…”

Section: Methodsunclassified

Controle genético, químico e biológico de meloidoginose na cultura da soja

Araújo

Bragante

2012

Pesqui. Agropecu. Trop.

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INTRODUÇÃODentre as doenças que limitam a produção de soja (Glycine max L.), no Brasil, as causadas por nematoides do gênero Meloidogyne estão entre as mais frequentemente associadas a danos na cultura, com ampla distribuição geográfica, sendo responsáveis por prejuízos crescentes (Almeida et al. 2005). Os nematoides deste gênero incitam galhas nas raízes e causam redução na absorção de nutrientes e transloca- ABSTRACT RESUMOmento de água, culminando com menor crescimento da parte aérea da planta (Tihohod 2000). As meloidoginoses, quando favorecidas pelas condições edafoclimáticas, podem causar perdas consideráveis à produção, em diferentes culturas, tendo sido observado decréscimo de produtividade em soja da ordem de 30%, em plantas infectadas por Meloidogyne javanica (Valiente et al. 1990 GENETIC, CHEMICAL, AND BIOLOGICAL CONTROL OF ROOT-KNOT NEMATODES IN SOYBEAN CROPThe control of nematodes with the use of different methods is important for success in the reduction of damage caused by these parasites. This study aimed to evaluate the effectiveness of methods for controlling root-knot nematodes in soybean. For that, the soybean BRS 282 genotype, resistant to Meloidogyne javanica and M. Incognita, was used for its genetic control, the nematicide carbofuran was used for its chemical control, and the Bacillus subtilis (PRBS-1 and B-1) was used for its biological control. Soybean BRS 282 (resistant) and BRS 184 (susceptible) seeds were treated or not with carbofuran and B. subtilis. The soil used in the experiment was collected in areas naturally infested with root-knot nematodes. In order to evaluate the control of root-knot nematodes, the plants were grown in a greenhouse, for 60 days. After this period, the active forms and nematodes eggs in the roots were quantified and plant growth evaluated. The use of the BRS 282 genotype was the best option for controlling root-knot nematodes in soybean, due to its low incidence in the roots. For the BRS 184 genotype, both the chemical and biological control were effective in reducing the nematode reproduction in soybean roots. The treatment of BRS 282 genotype seeds with carbofuran or B. subtilis significantly improved the soybean growth in soil infested with the parasite. KEY-WORDS:Glycine max L.; Meloidogyne spp.; Bacillus subtilis; carbofuran.

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“…This control model combined with good agricultural practices and resistant cultivars present advantages for the production system. This is due to its easy application, no toxicity and no negative interaction with the environment, conserving and maintaining the sustainability of the on-site production system (Cardoso & Araújo, 2011).…”

Section: Introductionmentioning

confidence: 99%

Biofertilizers in the control of Pratylenchus brachyurus in soybean crop

Conceição¹,

Rios²,

Júnior³

et al. 2022

RSD

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Nematodes are of great importance in soybean cultivation, especially the Pratylenchus brachyurus known as root lesion nematode. Its attack on plant roots causes less efficiency in the absorption of water and nutrients, in addition to damaging the plant's development. There is still no fully efficient method to control this phytopathogen, however, some products are available on the market, including biological control. Thus, the aim of this study was to evaluate commercial biological products in the efficiency of reducing the nematode population in soybean crop in Goiás, Brazil. The design was completely randomized in a 2x4 factorial scheme, the first factor being two soybean genotypes (Brasmax Bônus and Nidera NS 8383) and the second factor the treatments consisting of different dosages in an association of three commercial products: No-Estio®, Bio-fertility® and Radic®. The treatments used were: T1 control - without application of the products; T2 half the recommended dose; T3 the recommended dose and T4 a dose and a half that recommended by the manufacturer. Plant evaluation was carried out after 75 days of nematode inoculation. The results obtained showed that both cultivars hosted P. brachyurus, however, the treatments using the products had a lower population density of this nematode. It was concluded that the two soybean cultivars are hosts of Pratylenchus brachyurus. The agronomic character plant height was more affected when there was no application by the biological method. The association of No-Estio®, Bio-fertility® and Radic® products reduced the population density of nematodes in infected plants.

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Multiplicação de Bacillus subtilis em vinhaça e viabilidade no controle da meloidoginose, em cana-de-açúcar

Cited by 12 publications

References 14 publications

Biological nematicides associated with biofertilizers in the management of Pratylenchus zeae in sugarcane

Biological nematicides associated with biofertilizers in the management of Pratylenchus zeae in sugarcane

Controle genético, químico e biológico de meloidoginose na cultura da soja

Biofertilizers in the control of Pratylenchus brachyurus in soybean crop

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