HETERODERA CAROTAE PDF

Carrots Daucus carota L. Heterodera carotae Jones, is a plant-parasitic nematode commonly known as the carrot cyst nematode. Its distribution is limited to a few countries in Europe, and the state of Michigan in the U. CABI ; Jones

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During to in several nematological surveys in the Tepeaca Valley, Puebla, Mexico, carrot cyst nematode, Heterodera carotae was found parasitizing carrots, Daucus carota.

The aim of this work was to study morphology, morphometrics, host range, and molecular characterization of the nematode. The morphological and morphometric characterization was made using light and scanning electron microscopy of the second stage juveniles, females, males and cysts, and the host range study, was performed with nine different plants from five families.

It was shown that using presently available molecular tools it is not possible to make an accurate differentiation of H. The host range test allowed to distinguish these species from each other.

Our study showed that male stylet length is longer for H. This is an example of importance of combination of several methods for the correct identification of cyst nematodes. To our knowledge, this is the first report of H. Phylogenetic relationships within populations and species of the Goettingiana group of the genus…. A, Phylogenetic relationships within populations and species of the Goettingiana group of the…. This site needs JavaScript to work properly.

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Send even when there aren't any new results. Optional text in email:. Save Cancel. Create a file for external citation management software Create file Cancel. Full-text links Cite Favorites. Abstract During to in several nematological surveys in the Tepeaca Valley, Puebla, Mexico, carrot cyst nematode, Heterodera carotae was found parasitizing carrots, Daucus carota.

Figures Fig. A, Carrot field infected with Heterodera carotae ; B, Healthy carrot field; C and D, Carrot secondary roots with white females and cysts indicated by arrows ; E and F, Symptoms of an infected carrot.

Chlorosis and reddish foliage. A, Cysts;…. A, Cysts; B, Vulval cone. Scale bar: A, 0. Light microscopic photos. A, Entire body of female; B, Vulval cone; C,…. Scanning electron microscopic photos.

A, Entire…. A, Entire body of second stage juvenile J2 ; B, Head…. Phylogenetic relationships within populations and species of the Goettingiana group of the genus Heterodera as inferred from Bayesian analysis using the ITS rRNA gene sequence dataset.

Newly obtained sequences are indicated in bold. A, Phylogenetic relationships within populations and species of the Goettingiana group of the genus Heterodera as inferred from Bayesian analysis using the COI gene sequence dataset. B, Statistical parsimony network showing the phylogenetic relationships between haplotypes of species of the Goettingiana group. Small black cycles represent missing haplotypes.

Pie chart sizes are proportional to the number of samples with a particular haplotype. See this image and copyright information in PMC. Berney MF, et al. J Nematol. Microsatellite markers reveal two genetic groups in European populations of the carrot cyst nematode Heterodera carotae.

Gautier C, et al. Infect Genet Evol. Epub Apr PMID: Control of Heterodera carotae, Ditylenchus dipsaci, and Meloidogyne javanica with Fumigant and Nonfumigant Nematicides. Greco N, et al. Maafi ZT, et al. Management of cereal cyst nematodes, Heterodera spp. Holgado R, et al. Commun Agric Appl Biol Sci. PMID: Review.

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During to in several nematological surveys in the Tepeaca Valley, Puebla, Mexico, carrot cyst nematode, Heterodera carotae was found parasitizing carrots, Daucus carota. The aim of this work was to study morphology, morphometrics, host range, and molecular characterization of the nematode. The morphological and morphometric characterization was made using light and scanning electron microscopy of the second stage juveniles, females, males and cysts, and the host range study, was performed with nine different plants from five families. It was shown that using presently available molecular tools it is not possible to make an accurate differentiation of H. The host range test allowed to distinguish these species from each other. Our study showed that male stylet length is longer for H.

BERCEUSE BROUWER PDF

Female: Adult white, lemon-shaped with large egg-mass often almost totally enveloping the female. Head small, consisting of labial plate and a single annule. Cyst: Mature cysts small, lemon-shaped with distinct neck and vulval cone; neck often twisted. Color changes from white to russet-brown with no intermediate yellow stage. Wall-pattern consists of irregular zig-zag lines forming a close network. Subcrystalline layer present, but fragile.

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