Suppressiveness of root-knot nematodes mediated by rhizobacteria

Burkett-Cadena, Marleny; Kokalis-Burelle, Nancy; Lawrence, Kathy; Santen, Edzard van; Kloepper, Joseph W.

doi:10.1016/j.biocontrol.2008.07.008

Cited by 111 publications

(65 citation statements)

References 24 publications

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“…Due to the growing concern for the environmental impact caused by chemical nematicides, as well as the difficulties to develop resistant cultivars (Lewis and Grewal 2005), there is an increasing interest in developing management strategies compatible with production systems, such as the use of organic amendments (Tabarant et al 2011), arbuscular mycorrhizal fungi (Affokpon et al 2011), and plant growthpromoting rhizobacteria (Burkett-Cadena et al 2008). The use of natural antagonists as a biological control method is an alternative tool that can play an important role for the management of plant-parasitic nematodes (PPNs) (Ashoub and Amara 2010).…”

Section: Introductionmentioning

confidence: 99%

Effect of entomopathogenic nematodes on the plant-parasitic nematode Nacobbus aberrans

2012

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Nacobbus aberrans is a sedentary endoparasite nematode that forms galls in the roots of infected plants and produces important economic losses in some countries of the American continent. It has a wide host range, attacking mainly potato, tomato, sugar beet, and pepper crops. A reduction in the plant-parasitic nematode populations in the presence of entomopathogenic nematodes (EPNs) has been frequently reported. In the present work, the effect of the application of two native EPN isolates (Steinernema rarum and Heterorhabditis bacteriophora) on a N. aberrans population was evaluated in tomato plants under greenhouse conditions. Sixty days after inoculation, the number of galls and egg masses and the reproduction factor (RF) of N. aberrans were calculated. Of the variables analyzed, only the RF was significantly lower in both EPN treatments than in control. N. aberrans reproduction decreased by 57 and 53 % in plants inoculated with S. rarum and H. bacteriophora, respectively. These results showed that EPNs and their bacterial symbionts affected the reproductive potential of the N. aberrans population. This is the first study addressing the use of EPNs in the control of this important plant-parasitic nematode.

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Section: Introductionmentioning

confidence: 99%

Effect of entomopathogenic nematodes on the plant-parasitic nematode Nacobbus aberrans

2012

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“…Commercially-available rhizobacterial inoculants sold as BioYield  , (two PGPR strains of Bacillus spp. + chitosan), induced significant reductions in nematode eggs in roots, juvenile nematodes in soil, and galls per plant on tomato (Burkett-Cadena et al 2008). Similarly, the combined effect of chitosan with Bacillus megaterium (Bioarc  ) showed additive interaction effects on the reduction of M. incognita on tomato (Radwan et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Potential of chitosan alone and in combination with agricultural wastes against the root-knot nematode, Meloidogyne incognita infesting eggplant

Asif¹,

Ahmad²,

Tariq³

et al. 2017

Journal of Plant Protection Research

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The present investigation was carried out to evaluate the potential of chitosan alone and in combination with various agricultural wastes for the management of rootknot nematode, Meloidogyne incognita on eggplant cv. 'BR-112' under greenhouse conditions. The results showed that chitosan as a single or joint treatment with agricultural wastes significantly (p ≤ 0.05) reduced root-knot indices, and the nematode population in soil. As a result, of this, the growth and growth yielding attributes of eggplant were remarkably augmented. Chitosan as an elicitor induced plant mediated systemic resistance against M. incognita in eggplant. The results of the study demonstrated that maximum reduction in eggmass/root, eggs/eggmasses, nematode population and root-knot indices, was acquired by the treatments: chitosan + onion and chitosan + mentha. It was followed by chitosan + Brassica, chitosan + urad and chitosan + coconut whereas, chitosan combined with corn cob waste was found to be the least effective when compared to the control. The application of chitosan alone was effective but not very satisfactory. Compared to the control applications of all the treatments significantly increased plant growth in terms of length, fresh and dry weights, pollen fertility, yield and biochemical parameters such as chlorophyll, carotenoid content and antioxidant enzymes. This may have been due to the eliciting activity of chitosan, causing systemic resistance in the plant and the release of various toxic chemical compounds during decomposition which have lethal effects against the second stage juveniles of M. incognita and nematode multiplication.

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“…A inoculação de Bacillus subtilis, além de reduzir a severidade da doença, também influencia positivamente no crescimento das plantas (Burkett--Cadena et al 2008). 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).…”

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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Suppressiveness of root-knot nematodes mediated by rhizobacteria

Cited by 111 publications

References 24 publications

Effect of entomopathogenic nematodes on the plant-parasitic nematode Nacobbus aberrans

Effect of entomopathogenic nematodes on the plant-parasitic nematode Nacobbus aberrans

Potential of chitosan alone and in combination with agricultural wastes against the root-knot nematode, Meloidogyne incognita infesting eggplant

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

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