Reação de aceroleira (Malpighia emarginata D.C.) à Meloidogyne enterolobii

Cavichioli, José Carlos; Garcia, Maria José De Marchi; Brida, Andressa Lima de; Wilcken, Sílvia Renata Siciliano

doi:10.1590/0100-2945-429/13

Cited by 7 publications

(9 citation statements)

References 2 publications

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“…However, these indexes do not indicate the occurrence of nematode reproduction directly, while the reproduction factor, is a variable that allows the direct measurement of the nematode's reproductive capacity in the host [22]. The GI is usually used in germplasm tests to address the type of host reaction and the percentage of reduction of the parasite's reproduction rate in relation to the most susceptible cultivar, allowing the epidemiological characterization of the nematode-host interaction [2,17,23].…”

Section: Discussionmentioning

confidence: 99%

“…The experiment was conducted in a greenhouse located at the Agronomy Department of the Universidade Federal Rural de Pernambuco -UFRPE -Brazil. Twenty-two M. emarginata genotypes were utilized, of which twenty-one belong to the Active Bank of Germplasm (AGB) of the Carpina Sugarcane Experimental Station (E.E.C.A.C./UFRPE), located in the municipality of Carpina -PE and the variety BRS Sertaneja, which was selected due to its susceptibility to M. enterolobii [2,11].…”

Section: Methodsmentioning

confidence: 99%

“…Although it is a rustic plant, M. emarginata is sensitive to root-knot nematodes, which are its main limiting factor, negatively influencing the production and the quality of fruits. In the last years, orchards have shown a considerable decrease in production due to these phytonematodes [2]. One of the main species that has been shown to be very harmful to the crop is the Meloidogyne enterolobii Yang & Eisenback, described in China in 1983 [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…The knowledge of how M. emarginata genotypes respond to M. enterolobii infection is also of great importance since in perennial crops the management of these organisms is even more difficult. Therefore, for new orchards, it is essential to choose non-infested areas or the use of resistant genotypes [2]. Thus, in this work we evaluated 21 different M. emarginata genotypes from the active germplasm bank of UFRPE, aiming at the selection and indication of genotypes resistant to the phytonematode M. enterolobii.…”

Section: Introductionmentioning

confidence: 99%

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Resistance of Malpighia emarginata DC. Genotypes to Meloidogyne enterolobii Parasitism

Silva

Musser

Martins

et al. 2019

JEAI

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Aims: Considering the inexistence of M. emarginata cultivars resistant to M. enterolobii available for cultivation, and the scarcity of information about the severity of its parasitism in M. emarginata, the present study investigated the response of genotypes from the active germplasm bank of Universidade Federal Rural de Pernambuco to M. enterolobii parasitism, aiming the selection of resistant genotypes for use as rootstocks for commercial varieties. Study Design: The experimental design was completely randomized, with 21 genotypes and one independent matrix (control), with six replicates each. The experimental unit was represented by one plant per plot. Place and Duration of Study: Department of Agronomy, Universidade Federal Rural de Pernambuco – UFRPE - Brazil between June 2013 and July 2014. Methods: In the experiment, completely randomized design was adopted, with 21 genotypes from the AGB and one as a control for susceptibility. The M. emarginata cuttings were inoculated with 10,000 nematode eggs, and after 150 days, they were evaluated for the following parameters: Egg mass index, gall index, reproduction factor, number of eggs per gram of root, number of eggs per root system. Results: Twenty out of the twenty-two genotypes analyzed were susceptible. The genotypes 021-CMF and 037-CMF were considered resistant. To our knowledge, this is the first identification of M. emarginata genotypes resistant to M. enterolobii. Conclusions: These results are of great importance for the breeding and cultivation of the species since these two genotypes can be indicated for use as rootstocks and for breeding programs aimed at transferring resistance to other cultivars with desirable production characteristics that are susceptible to the phytonematode.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Resistance of Malpighia emarginata DC. Genotypes to Meloidogyne enterolobii Parasitism

Silva

Musser

Martins

et al. 2019

JEAI

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“…have also been regularly associated with damage in the acerola cherry (Malpighia emarginata DC), guava (Psidium guajava L.), fig (Ficus carica L.), mango (Mangifera indica L.), kiwi (Actinidia chinensis Planch.) and grape (Vitis vinifera L.) (Junqueira et al, 1999;Martins et al, 2013;Cavichioli et al, 2014;Souza et al, 2015a;Castro et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Prospecting for Nematodes Associated With Different Prunus Rootstocks in Brazil

Souza¹,

Brida²,

García³

et al. 2019

JAS

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The aim of the present study was to carry out a search for phytonematodes to verify the abundance and frequency of nematodes present in a peach orchard at eight years of age. Soil and root samples from nine peach rootstocks were collected in an experimental area in the district of Capão do Leão, in the State of Rio Grande do Sul, Brazil. After extraction, the samples were evaluated under an optical microscope. Nematodes of the following genera were identified in the samples: Meloidogyne spp., Pratylenchus spp., Helicotylenchus spp., Mesocriconema spp., Trichodorus spp., Longydorus spp., Tylenchorchynchus spp., Hemiciclyophora spp., Xiphinema spp., Tylenchulus spp., Dorylaimus spp., Rotylenchulus spp. and Mononchus spp., all associated with the roots or soil rhizosphere of ‘Aldrighi’, ‘Capdeboscq’, ‘Flordaguard’, ‘Nemaguard’, ‘Okinawa’, ‘Tusukuba’, ‘Umezeiro’, ‘Viamão’ and ‘Industry’ rootstocks. The most frequent phytoparasitic nematodes were Meloidogyne spp., and Mesocriconema spp., which, under high populations or under inadequate management of the cultivated area, represent a risk to peach cultivation. Xiphinema and Pratylenchus are two other phytonematodes that can cause damage to peach trees and were identified in greater abundance in the ‘Industry’, ‘Viamão’ and ‘Nemaguard’ rootstocks. Under the conditions of the present research the ‘Okinawa’ and ‘Umezeiro’ rootstocks proved to be unfavourable hosts, especially for Meloidogyne spp. and Mesocriconema spp. The ‘Viamão’, ‘Capdeboscq’, ‘Aldrighi’ and particularly the ‘Industry’ rootstcks should not be recommended for use in areas with an incidence of the nematodes Meloidogyne spp. or Mesocriconema spp.

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