Native-plant hosts of Meloidogyne spp. from Western Paraná, Brazil

Antes, Vanessa Aparecida; Comerlato, A. P.; Schuelter, Adílson Ricken; Carneiro, R. M. D. G.; Furlanetto, Cléber

doi:10.1590/s1516-89132012000200005

Cited by 6 publications

(7 citation statements)

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“…Despite being one of the most widespread and polyphagous species of Meloidogyne, M. incognita had its first report for cerrado in this work. Meloidogyne incognita had been reported before in the Atlantic Forest biome in Rio de Janeiro, Brazil (Lima et al 2005) and in Western Paran a, Brazil (Antes et al 2012).…”

Section: Discussionmentioning

confidence: 86%

“…), while in Western Paraná, Brazil, M. javanica was also reported parasitizing roots of native plants from the Atlantic Forest (Antes et al. ). The frequency of M. javanica in native soils covered by cerrado vegetation in Brazil can be explained by its wide host‐range and broad distribution (Hunt and Handoo ).…”

Section: Discussionmentioning

confidence: 98%

“…Previous survey for RKN nematodes in native cerrado reported M. javanica EST J3 as the most prevalent species (85%) (Souza et al 1994). In the Atlantic Forest biome, M. javanica was reported as the main species detected (Lima et al 2005), while in Western Paran a, Brazil, M. javanica was also reported parasitizing roots of native plants from the Atlantic Forest (Antes et al 2012). The frequency of M. javanica in native soils covered by cerrado vegetation in Brazil can be explained by its wide host-range and broad distribution (Hunt and Handoo 2009).…”

Section: Discussionmentioning

confidence: 99%

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Occurrence of Meloidogyne spp. in Cerrado Vegetations and Reaction of Native Plants to Meloidogyne javanica

Silva

Furlanetto

Almeida

et al. 2013

Journal of Phytopathology

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The Cerrado biome represents a hotspot of biodiversity. Despite this, the nematofauna in this biome has not been well characterized, especially that related to root-knot nematodes. This work aimed to identify Meloidogyne species present in different cerrado vegetations and to investigate potential hosts of Meloidogyne javanica in this biome. Soil samples (250) were collected in native areas of cerrado vegetation located at the National Park of Bras ılia (PNB) (125 samples) and Agua Limpa Farm (FAL) (125 samples), and transferred to sterile pots. Single tomato plants cv. Santa Clara (susceptible) were transplanted into individual pots and maintained for 90 days under glasshouse. Females of Meloidogyne spp. were extracted from tomato roots and identified based upon esterase phenotypes and confirmed with PCR using specific sequence characterized amplified regions (SCAR) primers. Native plants were inoculated with 10 000 individuals (eggs + J2) of a pure culture of M. javanica and maintained under glasshouse for 6 months. From the 250 samples collected, 57 (22.8%) presented Meloidogyne spp. A total of 66 Meloidogyne populations were identified as follows: M. javanica (75.76%), M. incognita (10.60%), M. hapla (9.1%), M. morocciensis (3.03%) and M. arenaria (1.51%). The following esterase phenotypes were detected: M. javanica (J3 and J2), M. incognita (I1 and I2), M. hapla (H1), M. morocciensis (A3) and M. arenaria (A2). The SCAR primers incK14F/incK14R, Fjav/Rjav and Fh/Rh amplified specific fragments in M. incognita (399 bp), M. javanica (670 bp) and M. hapla (610 bp) and can be used for identification of indigenous Meloidogyne spp. from cerrado. The primer set Far/Rar is not specific for M. arenaria due to the amplification of DNA in M. morocciensis. Mimosa caesalpiniifolia was the only native plant in which M. javanica developed a high reproductive rate, and it is probably a host for this nematode in cerrado.

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Section: Discussionmentioning

confidence: 86%

Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

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Occurrence of Meloidogyne spp. in Cerrado Vegetations and Reaction of Native Plants to Meloidogyne javanica

Silva

Furlanetto

Almeida

et al. 2013

Journal of Phytopathology

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“…by Meloidogyne incognita was reported by Antes et al (2012), in seedlings obtained from a commercial nursery in Western Paraná, Brazil. However, the same authors reported no infection in healthy seedlings of the same plant species when the natural population of Meloidogyne incognita was artificially inoculated, which suggests the occurrence of genetic variability in those plant species.…”

Section: Natural Infection Of Handroanthus Impetiginosus and Handroanthus Serratifoliusmentioning

confidence: 88%

“…Gall-inducing nematodes of the genus Meloidogyne have been reported to occur in soils of cerrado areas under permanent preservation (SOUZA;DOLINSKI;HUANG, 1994;SILVA et al, 2013). According to Antes et al (2012) and Silva et al (2013), Meloidogyne species occur in low population density in soils occupied with native vegetation, surviving due to the interaction with plant species. According to the same authors, the low population density of nematodes in areas occupied with native vegetation can be explained by the diversity and the genetic variability of vegetation present in those areas.…”

Section: Introductionmentioning

confidence: 99%

Hospedabilidade de plantas do Bioma Cerrado a <i>Meloidogyne</i> spp.

et al. 2021

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Dentre os biomas brasileiros, o Cerrado é o segundo em extensão territorial e em diversidade de espécies vegetais e animais. A biodiversidade do Cerrado tem sido estudada no que tange a sua flora e fauna, carecendo de dados de microorganismos representantes da microfauna, a exemplo dos nematoides de galhas radiculares. Meloidogyne spp. são nematoides endoparasitas sedentários de plantas. A sua presença em solo de áreas com vegetação nativa de cerrado, sob preservação, é um forte indício de que a sua permanência ocorre devido ao parasitismo de plantas nativas. Este trabalho objetivou estudar a hospedabilidade de plantas ocorrentes no bioma cerrado a Meloidogyne spp. Foram selecionadas trinta e cinco espécies vegetais desse bioma, incluindo espécies gramíneas e arbóreas, para estudo da hospedabilidade frente a três isolados de Meloidogyne coletados em área nativa de cerrado sob preservação (Meloidogyne incognita, Meloidogyne javanica e Meloidogyne morocciensis), além de uma espécie até então exótica ao cerrado (Meloidogyne paranaensis). Foram inoculados 5.000 ovos e eventuais juvenis de segundo estádio (J2) de cada espécie de nematoide por planta. Os experimentos foram conduzidos com 35 tratamentos (plantas nativas) e 5 repetições, tendo sido repetidos no tempo. As variáveis avaliadas foram índice de galhas e de massas de ovos, ovos e J2 por grama de raiz e fator de reprodução, além da sintomatologia causada pelos nematoides nas raízes. As seguintes espécies vegetais foram consideradas hospedeiras, com média do Fator de Reprodução (FR)1,0: Triplaris gardneriana para Meloidogyne javanica, Meloidogyne incognita e Meloidogyne morocciensis; Andropogon bicornis para Meloidogyne javanica e Meloidogyne incognita e Copaifera langsdorffii para Meloidogyne incognita. As seguintes espécies vegetais foram classificadas como hospedeiras potenciais, com FR1,0 para pelo menos uma das repetições: Copaifera langsdorffii para Meloidogyne morocciensis; Esenbeckia leiocarpa para Meloidogyne javanica e Guibourtia hymenifolia para Meloidogyne incognita. As demais espécies vegetais foram classificadas como não hospedeiras para as condições deste estudo. As plantas inoculadas apresentaram sintomas variados nas raízes como a presença de galhas associadas a massas de ovos, formação de massas de ovos sem galhas, rachaduras com massas de ovos e ausência de galhas e intumescimento com massas de ovos.

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