Fitonematoides associados a frutíferas na região Noroeste do Paraná, Brasil

Dias‐Arieira, Cláudia Regina; Furlanetto, Cléber; Santana, Simone de Melo; Barizão, Davi Antonio Oliveira; Ribeiro, Regina Cássia Ferreira; Formentini, Heloísa Maria

doi:10.1590/s0100-29452010005000119

Cited by 19 publications

(15 citation statements)

References 6 publications

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“…Plant-parasitic nematodes are a constant source of problems for Brazilian farmers due to the negative impact these animals cause to the production of several crops in Brazil (Dias-Arieira et al 2010). For example, the production of coffee is severely affected by species of Meloidogyne (Campos and Villain 2005).…”

Section: Introductionmentioning

confidence: 99%

Purification and identification of metabolites produced by Bacillus cereus and B. subtilis active against Meloidogyne exigua, and their in silico interaction with a putative phosphoribosyltransferase fromM. incognita

Oliveira

Júnior

Nunes

et al. 2014

An. Acad. Bras. Ciênc.

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To contribute to the development of products to control Meloidogyne exigua, the bacteria Bacillus cereus and B. subtilis were cultivated in liquid medium to produce metabolites active against this plant-parasitic nematode. Fractionation of the crude dichloromethane extracts obtained from the cultures afforded uracil, 9H-purine and dihydrouracil. All compounds were active against M. exigua, the latter being the most efficient. This substance presented a LC 50 of 204 µg/mL against the nematode, while a LC 50 of 260 µg/mL was observed for the commercial nematicide carbofuran. A search for protein-ligand complexes in which the ligands were structurally similar to dihydrouracil resulted in the selection of phosphoribosyltransferases, the sequences of which were used in an in silico search in the genome of M. incognita for a similar sequence of amino acids. The resulting sequence was modelled and dihydrouracil and 9H-purine were inserted in the active site of this putative phosphoribosyltransferase resulting in protein-ligand complexes that underwent molecular dynamics simulations. Calculation of the binding free-energies of these complexes revealed that the dissociation constant of dihydrouracil and 9H-purine to this protein is around 8.3 x 10 -7 and 1.6 x 10 -6 M, respectively. Consequently, these substances and the putative phosphoribosyltransferase are promising for the development of new products to control M. exigua.

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Section: Introductionmentioning

confidence: 99%

Purification and identification of metabolites produced by Bacillus cereus and B. subtilis active against Meloidogyne exigua, and their in silico interaction with a putative phosphoribosyltransferase fromM. incognita

Oliveira

Júnior

Nunes

et al. 2014

An. Acad. Bras. Ciênc.

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“…It is important to emphasize the importance of phytonematode population surveys in commercially cultivated crops [18,19] . Greater knowledge of phytonematodes associated with the noni crop is also important in the management of these pathogens.…”

Section: Meloidigyne Javanica In Nonimentioning

confidence: 99%

“…In order to manage phytonematodes, the most efficient and economical method is the use of resistant cultivars [20] , because these make it possible to maintain nematode populations below the level that causes economic losses [19] . As RKNs present a high level of host specialization, the most desirable management of Meloidogyne spp.…”

Section: Meloidigyne Javanica In Nonimentioning

confidence: 99%

Occurrence of Meloidogyne javanica in a noni (Morinda citrifolia L.) crop in Espírito Santo state, Brazil

Souza¹,

Alves²,

Souza³

et al. 2017

Nematoda

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ABSTRACT:Although there are reports in the literature of root-knot nematodes (Meloidogyne spp.) occurring in association with noni (Morinda citrifolia L.), a plant that helps in the prevention and cure of some human diseases, there are no reports of a nematological survey in the crop in Brazil in commercial areas. The aim of this work was to carry out a survey of phytonematodes associated with noni in commercial plantations in Espírito Santo state, Brazil. The soil and root samples were collected on properties in the counties of Colatina and São Roque do Canaã, the main producers in the upland region of Espírito Santo. The presence of M. javanica was identified in all samples using the technique of esterase isoenzyme electrophoresis. This is the first report of this pathosystem in Espírito Santo State.

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“…Contudo, H. dihystera foi pouco abundante e, com frequência no solo e nas raízes próximo a 25% (Tabela 1). Isso pode ser explicado pelo fato da bananeira não ser uma hospedeira favorável a esta espécie e pelo seu hábito ectoparasito, devido à predominância no solo (Dias-Arieira et al, 2010). Rotylenchulus reniformis foi mais abundante (Ar) no solo que nas raízes e R. similis mais abundante nas raízes que no solo (Tabela 1).…”

Section: E R Similis (Orton Willians E Siddiqi 1973) As Espécies Dunclassified

“…Rotylenchulus reniformis foi mais abundante (Ar) no solo que nas raízes e R. similis mais abundante nas raízes que no solo (Tabela 1). Tal fato é devido aos hábitos semi-endoparasito sedentário e endoparasito migrador, respectivamente (Chitamba et al, 2013 (Dias-Arieira et al, 2010).…”

Section: E R Similis (Orton Willians E Siddiqi 1973) As Espécies Dunclassified

Fitonematoides Associados a Cultivos De Bananeiras Na Região Sul Da Bahia

Oliveira¹,

Silveira²,

Soares³

et al. 2015

Agrotropica

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Plant parasitic nematodes associated with bananas plantings in the south region of Bahia. Brazil is a major producer of fruits, and the State of Bahia is second largest bananas producer of bananas. However the cultivation of bananas (Musa spp.) has been showing yield losses due to inappropriate management practices and phytosanitary problems. Plant parasite nematodes are among the pathogens which can cause ham to this crop. As such, the objective of this work was to survey the plant-parasitic nematodes associated on crops of banana in 12 municipalities from the south region of Bahia in the period of December 2011 to November 2012. The nematodes found were Helicotylenchus multicinctus, H. dihystera, Meloidogyne incognita, M. javanica, Meloidogyne sp., Paratylenchus sp, Pratylenchus coffeae, Radopholus similis and Rotylenchulus reniformis. The highest population levels were H. multicinctus, R. similis and Meloidogyne spp. With 117.144,00, 18.648,00 e 16.498,00, respectively. Lack of knowledge of farmers about the nematoses, not adopting management practices and lack of technical assistance may explain the wide spread and high population levels of nematodes found.

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Fitonematoides associados a frutíferas na região Noroeste do Paraná, Brasil

Cited by 19 publications

References 6 publications

Purification and identification of metabolites produced by Bacillus cereus and B. subtilis active against Meloidogyne exigua, and their in silico interaction with a putative phosphoribosyltransferase fromM. incognita

Purification and identification of metabolites produced by Bacillus cereus and B. subtilis active against Meloidogyne exigua, and their in silico interaction with a putative phosphoribosyltransferase fromM. incognita

Occurrence of Meloidogyne javanica in a noni (Morinda citrifolia L.) crop in Espírito Santo state, Brazil

Fitonematoides Associados a Cultivos De Bananeiras Na Região Sul Da Bahia

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