Variability in pathogenicity among Phytophthora spp. Isolated from Citrus in Corsica
Gummosis, caused by several Phytophthora species, is one of the most serious constraints to citrus production in Corsica. The current Phytophthora population on citrus trees is mainly composed of P. citrophthora divided into two major groups, namely GI and G2, with two additional minor groups. Following changes in cultural practices, favourable climatic conditions, and introduction of new hosts, repeated gummosis outbreaks have been observed. The pathogenicity of several Phytophthora isolates of each group collected in citrus groves was assessed for gummosis disease on 20 citrus scion and rootstock cultivars. All isolates tested proved virulent on citrus but extensive pathogenicity differences were observed among and within Phytophthora groups. The data indicate that G1 isolates of P. citrophthora are pathogenic to resistant rootstocks such as Poncirus trifoliate or Carrizo citrange, and moderately aggressive towards scions. In contrast, isolates of the group G2 tend to display a greater aggressiveness to a number of scion cultivars, but are not virulent to P. trifoliata and its hybrids. Implications of these data on disease management are discussed.
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Subjects: | H20 - Maladies des plantes, Citrus, Phytophthora, pouvoir pathogène, gommose, porte greffe, résistance aux maladies, contrôle de maladies, http://aims.fao.org/aos/agrovoc/c_1637, http://aims.fao.org/aos/agrovoc/c_5844, http://aims.fao.org/aos/agrovoc/c_5629, http://aims.fao.org/aos/agrovoc/c_34010, http://aims.fao.org/aos/agrovoc/c_6653, http://aims.fao.org/aos/agrovoc/c_2328, http://aims.fao.org/aos/agrovoc/c_2327, http://aims.fao.org/aos/agrovoc/c_1907, http://aims.fao.org/aos/agrovoc/c_3081, |
Online Access: | http://agritrop.cirad.fr/522659/ http://agritrop.cirad.fr/522659/1/document_522659.pdf |
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dig-cirad-fr-5226592024-01-28T12:53:57Z http://agritrop.cirad.fr/522659/ http://agritrop.cirad.fr/522659/ Variability in pathogenicity among Phytophthora spp. Isolated from Citrus in Corsica. Vernière Christian, Cohen Séverine, Raffanel B., Dubois Albert, Venard Paul, Panabières Franck. 2004. Journal of Phytopathology, 152 (8-9) : 476-483.https://doi.org/10.1111/j.1439-0434.2004.00878.x <https://doi.org/10.1111/j.1439-0434.2004.00878.x> Variability in pathogenicity among Phytophthora spp. Isolated from Citrus in Corsica Vernière, Christian Cohen, Séverine Raffanel, B. Dubois, Albert Venard, Paul Panabières, Franck eng 2004 Journal of Phytopathology H20 - Maladies des plantes Citrus Phytophthora pouvoir pathogène gommose porte greffe résistance aux maladies contrôle de maladies http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_5844 http://aims.fao.org/aos/agrovoc/c_5629 http://aims.fao.org/aos/agrovoc/c_34010 http://aims.fao.org/aos/agrovoc/c_6653 http://aims.fao.org/aos/agrovoc/c_2328 http://aims.fao.org/aos/agrovoc/c_2327 Corse France http://aims.fao.org/aos/agrovoc/c_1907 http://aims.fao.org/aos/agrovoc/c_3081 Gummosis, caused by several Phytophthora species, is one of the most serious constraints to citrus production in Corsica. The current Phytophthora population on citrus trees is mainly composed of P. citrophthora divided into two major groups, namely GI and G2, with two additional minor groups. Following changes in cultural practices, favourable climatic conditions, and introduction of new hosts, repeated gummosis outbreaks have been observed. The pathogenicity of several Phytophthora isolates of each group collected in citrus groves was assessed for gummosis disease on 20 citrus scion and rootstock cultivars. All isolates tested proved virulent on citrus but extensive pathogenicity differences were observed among and within Phytophthora groups. The data indicate that G1 isolates of P. citrophthora are pathogenic to resistant rootstocks such as Poncirus trifoliate or Carrizo citrange, and moderately aggressive towards scions. In contrast, isolates of the group G2 tend to display a greater aggressiveness to a number of scion cultivars, but are not virulent to P. trifoliata and its hybrids. Implications of these data on disease management are discussed. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/522659/1/document_522659.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1111/j.1439-0434.2004.00878.x 10.1111/j.1439-0434.2004.00878.x http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=183278 info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1439-0434.2004.00878.x info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1111/j.1439-0434.2004.00878.x |
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H20 - Maladies des plantes Citrus Phytophthora pouvoir pathogène gommose porte greffe résistance aux maladies contrôle de maladies http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_5844 http://aims.fao.org/aos/agrovoc/c_5629 http://aims.fao.org/aos/agrovoc/c_34010 http://aims.fao.org/aos/agrovoc/c_6653 http://aims.fao.org/aos/agrovoc/c_2328 http://aims.fao.org/aos/agrovoc/c_2327 http://aims.fao.org/aos/agrovoc/c_1907 http://aims.fao.org/aos/agrovoc/c_3081 H20 - Maladies des plantes Citrus Phytophthora pouvoir pathogène gommose porte greffe résistance aux maladies contrôle de maladies http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_5844 http://aims.fao.org/aos/agrovoc/c_5629 http://aims.fao.org/aos/agrovoc/c_34010 http://aims.fao.org/aos/agrovoc/c_6653 http://aims.fao.org/aos/agrovoc/c_2328 http://aims.fao.org/aos/agrovoc/c_2327 http://aims.fao.org/aos/agrovoc/c_1907 http://aims.fao.org/aos/agrovoc/c_3081 |
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H20 - Maladies des plantes Citrus Phytophthora pouvoir pathogène gommose porte greffe résistance aux maladies contrôle de maladies http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_5844 http://aims.fao.org/aos/agrovoc/c_5629 http://aims.fao.org/aos/agrovoc/c_34010 http://aims.fao.org/aos/agrovoc/c_6653 http://aims.fao.org/aos/agrovoc/c_2328 http://aims.fao.org/aos/agrovoc/c_2327 http://aims.fao.org/aos/agrovoc/c_1907 http://aims.fao.org/aos/agrovoc/c_3081 H20 - Maladies des plantes Citrus Phytophthora pouvoir pathogène gommose porte greffe résistance aux maladies contrôle de maladies http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_5844 http://aims.fao.org/aos/agrovoc/c_5629 http://aims.fao.org/aos/agrovoc/c_34010 http://aims.fao.org/aos/agrovoc/c_6653 http://aims.fao.org/aos/agrovoc/c_2328 http://aims.fao.org/aos/agrovoc/c_2327 http://aims.fao.org/aos/agrovoc/c_1907 http://aims.fao.org/aos/agrovoc/c_3081 Vernière, Christian Cohen, Séverine Raffanel, B. Dubois, Albert Venard, Paul Panabières, Franck Variability in pathogenicity among Phytophthora spp. Isolated from Citrus in Corsica |
description |
Gummosis, caused by several Phytophthora species, is one of the most serious constraints to citrus production in Corsica. The current Phytophthora population on citrus trees is mainly composed of P. citrophthora divided into two major groups, namely GI and G2, with two additional minor groups. Following changes in cultural practices, favourable climatic conditions, and introduction of new hosts, repeated gummosis outbreaks have been observed. The pathogenicity of several Phytophthora isolates of each group collected in citrus groves was assessed for gummosis disease on 20 citrus scion and rootstock cultivars. All isolates tested proved virulent on citrus but extensive pathogenicity differences were observed among and within Phytophthora groups. The data indicate that G1 isolates of P. citrophthora are pathogenic to resistant rootstocks such as Poncirus trifoliate or Carrizo citrange, and moderately aggressive towards scions. In contrast, isolates of the group G2 tend to display a greater aggressiveness to a number of scion cultivars, but are not virulent to P. trifoliata and its hybrids. Implications of these data on disease management are discussed. |
format |
article |
topic_facet |
H20 - Maladies des plantes Citrus Phytophthora pouvoir pathogène gommose porte greffe résistance aux maladies contrôle de maladies http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_5844 http://aims.fao.org/aos/agrovoc/c_5629 http://aims.fao.org/aos/agrovoc/c_34010 http://aims.fao.org/aos/agrovoc/c_6653 http://aims.fao.org/aos/agrovoc/c_2328 http://aims.fao.org/aos/agrovoc/c_2327 http://aims.fao.org/aos/agrovoc/c_1907 http://aims.fao.org/aos/agrovoc/c_3081 |
author |
Vernière, Christian Cohen, Séverine Raffanel, B. Dubois, Albert Venard, Paul Panabières, Franck |
author_facet |
Vernière, Christian Cohen, Séverine Raffanel, B. Dubois, Albert Venard, Paul Panabières, Franck |
author_sort |
Vernière, Christian |
title |
Variability in pathogenicity among Phytophthora spp. Isolated from Citrus in Corsica |
title_short |
Variability in pathogenicity among Phytophthora spp. Isolated from Citrus in Corsica |
title_full |
Variability in pathogenicity among Phytophthora spp. Isolated from Citrus in Corsica |
title_fullStr |
Variability in pathogenicity among Phytophthora spp. Isolated from Citrus in Corsica |
title_full_unstemmed |
Variability in pathogenicity among Phytophthora spp. Isolated from Citrus in Corsica |
title_sort |
variability in pathogenicity among phytophthora spp. isolated from citrus in corsica |
url |
http://agritrop.cirad.fr/522659/ http://agritrop.cirad.fr/522659/1/document_522659.pdf |
work_keys_str_mv |
AT vernierechristian variabilityinpathogenicityamongphytophthorasppisolatedfromcitrusincorsica AT cohenseverine variabilityinpathogenicityamongphytophthorasppisolatedfromcitrusincorsica AT raffanelb variabilityinpathogenicityamongphytophthorasppisolatedfromcitrusincorsica AT duboisalbert variabilityinpathogenicityamongphytophthorasppisolatedfromcitrusincorsica AT venardpaul variabilityinpathogenicityamongphytophthorasppisolatedfromcitrusincorsica AT panabieresfranck variabilityinpathogenicityamongphytophthorasppisolatedfromcitrusincorsica |
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