Bactérias Como Agentes De Controle Biológico De Fitonematóides

Machado, Vilmar; Berlitz, Diouneia Lisiane; Matsumura, Aida Teresinha Santos; Santin, Rita de Cássia Madail; Guimarães, Alexandre Martins; Silva, Márcia Eloísa da; Fiúza, Lidia Mariana

doi:10.4257/oeco.2012.1602.02

Cited by 27 publications

(22 citation statements)

References 58 publications

(74 reference statements)

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“…According to some authors, soil that contain native bacteria were able to produce toxic compounds against nematodes, which are compounds resulting from microbial metabolism (Rodrígez-Kábana, 1991;Machado et al, 2012). In this study, rhizobacteria probably synthesized some antimicrobial compound that caused the death of R. similis under in vitro conditions, since only in the presence of the culture medium the mortality rate was much lower.…”

Section: Discussionmentioning

confidence: 88%

An evaluation in vitro and in vivo of rhizobacteria in the biocontrol of Radopholus similis in banana

Celma¹,

Aldo²,

Harllen³

et al. 2015

Afr. J. Agric. Res.

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Rhizobacteria were isolated from the rhizosphere of banana cultivars 'Prata Comum' and 'Prata Anã' and from crotalaria and marigold in Tryptic Soy Agar and King B-agar media. Bacteria were used for valuations of the in vitro and in vivo. The promising isolates were submitted to identification by polymerase chain reaction. Among the one hundred and fifty two evaluated, twenty three showed toxicity to R. similis after twenty-four and thirty six hours. Five presented deleterious effect on the population of R. similis in the soil under in vivo conditions. Of the ten submitted to identification, three corresponded to the Bacillus genus and two to the Pseudomonas genus. The bacteria evaluated have antagonistic potential against R. similis.

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Section: Discussionmentioning

confidence: 88%

An evaluation in vitro and in vivo of rhizobacteria in the biocontrol of Radopholus similis in banana

Celma¹,

Aldo²,

Harllen³

et al. 2015

Afr. J. Agric. Res.

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“…via PF), possivelmente, deve-se ao comportamento endofítico da rizobactéria, em razão da sua competência natural para colonizar a rizosfera e adentrar em tecidos vegetais, o que lhe confere maior potencial de controle de patógenos subterrâneos (ARAVIND et al, 2008). Acrescenta-se a isto, a habilidade do Bacillus subtilis em produzir endotoxinas de caráter nematicida, capazes de interferir no ciclo de reprodução, oviposição e eclosão de nematoides (MACHADO et al, 2012.;SHARMA & GOMES, 1996). Em relação a aplicação do produto a base de Bacillus subtilis em cobertura (T7), a suplementação hídrica realizada ao longo de todo ciclo do feijoeiro, possivelmente facilitou a percolação das rizobactérias na camada superficial do solo (ZILLI et al, 2008) permitindo efeito verificado.…”

Section: Resultsunclassified

“…(DAVIS et al, 2004). O ataque de nematoides tem sido relatado em muitas espécies de plantas cultivadas (MACHADO et al, 2012), especialmente culturas como a soja (DIAS et al, 2010), o milho (CHIAMOLERA et al, 2012) e o feijoeiro (GARDIANO et al, 2012).…”

Section: Influence Of Bacillus Subtilis In Nematodes Biological Contrunclassified

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INFLUÊNCIA DO Bacillus subtilis NO CONTROLE BIOLÓGICO DE NEMATOIDES E ASPECTOS PRODUTIVOS DO FEIJOEIRO

Oliveira

Silva

Proença

et al. 2017

Revista Brasileira De Engenharia De Biossistemas

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Visando evitar o uso de defensivos químicos de alta toxicidade o uso de microrganismos antagonistas torna-se uma alternativa sustentável para o controle de nematoides. O Bacillus subtilis, é uma rizobactéria cujo potencial nematicida vem sendo reportado na literatura, mas que carece de estudos sobre sua atuação para culturas como o feijoeiro. O objetivo do trabalho foi avaliar os efeitos de um produto comercial (p.c.) a base de Bacillus subtilis aplicado via pulverização foliar (PF) e via tratamento de sementes (TS) no controle de nematoides e sobre os aspectos produtivos do feijoeiro. Tratamentos empregados: T1 - Controle; T2 - 20 kg ha-1 de carbofurano via sulco de semeadura; T3 - 350 mL ha-1 do p.c. via TS; T4 - 350 mL ha-1 do p.c. via TS + 1,0 L ha-1 do p.c. via PF; T5 - 350 mL ha-1 do p.c. via TS + 2,0 L ha-1 do p.c. via PF; T6 - 1,0 L ha-1 do p.c. via PF e T7 - 2,0 L ha-1 do p.c. via PF. Avaliou-se: população de nematoides; número de vagens por planta, número de grãos por planta, número de grãos por vagem, massa de 100 grãos e produtividade. Não foram observados resultados significativos quanto aos aspectos produtivos do feijoeiro para todos os tratamentos. O Bacillus subtilis mostrou-se eficaz no controle biológico de nematoides (T3 e T7) aos 30 dias após a semeadura da cultura, assim como o nematicida carbofurano (T2).

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“…Researches in the biological control field aim the application of bacteria, fungi, and algae to control these pests. They are mainly focused in rhizosphere compounds with the capacity to modify this environment, affecting these parasites directly or indirectly (Machado et al 2012). The bacteria of this genus are sporulating, are found in different habitats, and have the peculiarity of being, in many cases, entomopathogenic.…”

Section: Introductionmentioning

confidence: 99%

Bacillus and Biopesticides in Control of Phytonematodes

Berlitz

Knaak

Cassal

et al. 2014

Basic and Applied Aspects of Biopesticides

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Currently the major challenge of humanity is focused on population growth/ increase through agricultural production in order to meet the demand for food. Overtime, different pests have emerged, with some being of great importance. Among these pests, the nematodes are noted for attacking leguminous plants, grasses, citrus, and other fruits. The main pest species are of the genus Heterodera, Meloidogyne, Pratylenchus, and Globodera. These nematodes cause losses up to 100 %, preventing agriculture of certain areas. Financially, about $100 billion annual damage is caused by nematodes. These amount to 90 % of the yield of cotton, yams, beans, and soybeans, and in citrus damage is estimated at 14 % of production. Alternative methods of control are being studied, and in this context, a bacterium of the genus Bacillus has prominence and importance. Besides Bacillus subtilis, some by pesticides are already marketed for the control of nematodes, such as Bioarc ® the basis of Bacillus megaterium, Bio Zeid ® the basis of Trichoderma album, and also using the brown alga, Ascophyllum nodosum (Algaefol ® ), among others. The objective of this chapter is to report the use of different Bacillus species and some biopesticides used to control nematodes of agricultural importance.

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Bactérias Como Agentes De Controle Biológico De Fitonematóides

Cited by 27 publications

References 58 publications

An evaluation in vitro and in vivo of rhizobacteria in the biocontrol of Radopholus similis in banana

An evaluation in vitro and in vivo of rhizobacteria in the biocontrol of Radopholus similis in banana

INFLUÊNCIA DO Bacillus subtilis NO CONTROLE BIOLÓGICO DE NEMATOIDES E ASPECTOS PRODUTIVOS DO FEIJOEIRO

Bacillus and Biopesticides in Control of Phytonematodes

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