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Diego Rubiales - One of the best experts on this subject based on the ideXlab platform.
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Resistance to rusts (Uromyces pisi and U. viciae-fabae) in pea
Czech Journal of Genetics and Plant Breeding, 2018Co-Authors: Eleonora Barilli, Josefina C. Sillero, E. Prats, Diego RubialesAbstract:Barilli E., Sillero J.C., Prats E., Rubiales D. (2014): Resistance to rusts (Uromyces pisi and U. viciae-fabae) in pea. Czech J. Genet. Plant Breed., 50: 135–143. Pea is the second most important food legume crop in the world. Rust is a pea disease widely distributed, particularly in regions with warm, humid weather. Pea rust can be incited by Uromyces viciae-fabae and by U. pisi . U. viciae-fabae prevails in tropical and subtropical regions such as India and China, while U. pisi prevails in temperate regions. Chemical control of rust is possible, but the use of host plant resistance is the most desired means of rust control. In this paper we revise and discuss the occurrence and incidence of both pathogens on peas, the availability of resistance sources and the present state of the art in pea breeding against this disease.
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Response of vetches (Vicia spp.) to specialized forms of Uromyces vicia-fabae and to Uromyces pisi
Crop Protection, 2013Co-Authors: Diego Rubiales, Amero A. EmeranAbstract:Abstracts The genus Vicia includes many species of agricultural interest, such as faba bean and the various vetches that may be infected by rust, with little understanding of the specificity of these interactions. This work contributes to the clarification of host range of Uromyces viciae-fabae and Uromyces pisi, and confirms host specialization within U. viciae-fabae. The differential response of Vicia faba, Vicia sativa and Lens culinaris checks confirms the existence of specialized isolates of U. viciae-fabae. Host range of these host specialized forms of U. viciae-fabae was not so clear cut when we test other species of Vicia. The most specialized form was U. viciae-fabae ex V. faba that was able to infect profusely only faba bean (V. faba), all other Vicia species being highly resistant. Conversely, susceptibility against U. viciae-fabae ex V. sativa was very common in Vicia spp., particularly in those belonging to the subgenus Vicia, although not in V. faba. Still, susceptibility could be identified in a number of accessions of section Cracca such as Vicia cracca, Vicia monantha, Vicia sicula or Vicia villosa. Most Vicia accessions were highly resistant to U. viciae-fabae ex L. culinaris, but a number of accessions could be severely rusted, particularly in species of the subgenus Vicilla but also in some of section Peregrinae of subgenus Vicia. Similarly, most Vicia accessions were highly resistant to U. pisi but a number of accessions could be severely rusted, particularly in species of the subgenus Vicilla and in sections Hypechusa and Peregrinae of subgenus Vicia. This work also identified sources of resistance to the various rusts that can be used in rust resistance breeding. In spite of the susceptibility against various rusts, interesting levels of resistance were identified in crops and related species being based either on hypersensitive response or on reduced severity in spite of a compatible interaction making resistance breeding feasible.
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Clarification on rust species potentially infecting pea (Pisum sativum L.) crop and host range of Uromyces pisi (Pers.) Wint
Crop Protection, 2012Co-Authors: Eleonora Barilli, Josefina C. Sillero, A. Moral, Diego RubialesAbstract:Abstract Rust is a serious disease of pea whose casual agent is not always understood. In this paper we studied reaction of pea accessions to seven rust species infecting closely related legumes, finding that indeed pea can be infected mainly by Uromyces pisi, followed by Uromyces viciae-fabae. Other rust species like Uromyces striatus, Uromyces ciceris-arietini, Uromyces anthyllidis and Uromyces vignae can also infect and reproduce on pea, although in a minor extent. All U. pisi isolates tested were very virulent on pea accessions, but isolates UpPt-03 and UpKeS-05 (from Palmar de Troya, Spain and Kafr-El-Sheik, Egypt respectively) were significantly most infective. In addition to this we studied in detail the host range of U. pisi by inoculating multiple accessions of various legumes with urediospores of seven isolates of U. pisi from different geographical origins. Both experiments were performed under controlled conditions. Based on the evidence presented here the host range of U. pisi is greater than previously recorded, including genotypes belonging to Cicer arietinum, Vicia articulada, Vicia ervilia and Vicia faba, which were not mentioned before.
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Chemical control of faba bean rust (Uromyces viciae-fabae)
Crop Protection, 2011Co-Authors: Amero A. Emeran, Josefina C. Sillero, Mónica Fernández-aparicio, Diego RubialesAbstract:Abstract The effectiveness of eleven foliar-applied fungicides on faba bean rust ( Uromyces viciae-fabae (Pers.) J. Schrot.) and on the seed yield of faba bean ( Vicia faba L.) were studied in growth chambers and in the field in Spain. Fungicides were tested at recommended and reduced rates. All the fungicides tested provided very effective preventive control in the growth chamber studies. Triazoles (difenoconazol, epoxiconazol, tebuconazol) and their mixtures with benzimidazoles (carbendazim-flutriafol and carbendazim-flusilazole) provided the most effective curative effect, even at 25% of recommended concentrations. They were followed by dithiocarbamates, copper dithiocarbamate mixture, carboxamide and chlorothalonil. Triazoles, benzimidazole-triazole mixtures and carboxamide maintained their effect until 15 days after fungicide application. Under field conditions, rust infection caused 22–26% yield reduction. All fungicides except mancozeb caused a significant decrease in disease severity under field conditions, but only treatments with triazoles and benzimidazole-triazole mixtures provided significant yield increases (22.7–15.6%) when applied twice. Three applications of oxycarbosin or copper-mancozeb were needed to provide a significant yield increase. Dithiocarbamates (thiram, maneb or mancozeb) or chlorothalonil reduced rust severity but did not provide a significant yield increase.
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identification of resistance to Uromyces pisi pers wint in pisum spp germplasm
Field Crops Research, 2009Co-Authors: Eleonora Barilli, Josefina C. Sillero, Monica Fernandezaparicio, Diego RubialesAbstract:A germplasm collection of 2759 pea accessions was screened for resistance against Uromyces pisi (Pers.) Wint. All accessions displayed a compatible interaction (high infection type) both in adult plants under field conditions and in seedlings under growth chamber conditions, but with varying levels of disease reduction. The identified resistance was based on reduction of disease severity with no associated host cell necrosis, which fits the definition of Partial Resistance. No complete resistance or incomplete resistance based on hypersensitivity was observed.
Josefina C. Sillero - One of the best experts on this subject based on the ideXlab platform.
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Resistance to rusts (Uromyces pisi and U. viciae-fabae) in pea
Czech Journal of Genetics and Plant Breeding, 2018Co-Authors: Eleonora Barilli, Josefina C. Sillero, E. Prats, Diego RubialesAbstract:Barilli E., Sillero J.C., Prats E., Rubiales D. (2014): Resistance to rusts (Uromyces pisi and U. viciae-fabae) in pea. Czech J. Genet. Plant Breed., 50: 135–143. Pea is the second most important food legume crop in the world. Rust is a pea disease widely distributed, particularly in regions with warm, humid weather. Pea rust can be incited by Uromyces viciae-fabae and by U. pisi . U. viciae-fabae prevails in tropical and subtropical regions such as India and China, while U. pisi prevails in temperate regions. Chemical control of rust is possible, but the use of host plant resistance is the most desired means of rust control. In this paper we revise and discuss the occurrence and incidence of both pathogens on peas, the availability of resistance sources and the present state of the art in pea breeding against this disease.
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Clarification on rust species potentially infecting pea (Pisum sativum L.) crop and host range of Uromyces pisi (Pers.) Wint
Crop Protection, 2012Co-Authors: Eleonora Barilli, Josefina C. Sillero, A. Moral, Diego RubialesAbstract:Abstract Rust is a serious disease of pea whose casual agent is not always understood. In this paper we studied reaction of pea accessions to seven rust species infecting closely related legumes, finding that indeed pea can be infected mainly by Uromyces pisi, followed by Uromyces viciae-fabae. Other rust species like Uromyces striatus, Uromyces ciceris-arietini, Uromyces anthyllidis and Uromyces vignae can also infect and reproduce on pea, although in a minor extent. All U. pisi isolates tested were very virulent on pea accessions, but isolates UpPt-03 and UpKeS-05 (from Palmar de Troya, Spain and Kafr-El-Sheik, Egypt respectively) were significantly most infective. In addition to this we studied in detail the host range of U. pisi by inoculating multiple accessions of various legumes with urediospores of seven isolates of U. pisi from different geographical origins. Both experiments were performed under controlled conditions. Based on the evidence presented here the host range of U. pisi is greater than previously recorded, including genotypes belonging to Cicer arietinum, Vicia articulada, Vicia ervilia and Vicia faba, which were not mentioned before.
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Chemical control of faba bean rust (Uromyces viciae-fabae)
Crop Protection, 2011Co-Authors: Amero A. Emeran, Josefina C. Sillero, Mónica Fernández-aparicio, Diego RubialesAbstract:Abstract The effectiveness of eleven foliar-applied fungicides on faba bean rust ( Uromyces viciae-fabae (Pers.) J. Schrot.) and on the seed yield of faba bean ( Vicia faba L.) were studied in growth chambers and in the field in Spain. Fungicides were tested at recommended and reduced rates. All the fungicides tested provided very effective preventive control in the growth chamber studies. Triazoles (difenoconazol, epoxiconazol, tebuconazol) and their mixtures with benzimidazoles (carbendazim-flutriafol and carbendazim-flusilazole) provided the most effective curative effect, even at 25% of recommended concentrations. They were followed by dithiocarbamates, copper dithiocarbamate mixture, carboxamide and chlorothalonil. Triazoles, benzimidazole-triazole mixtures and carboxamide maintained their effect until 15 days after fungicide application. Under field conditions, rust infection caused 22–26% yield reduction. All fungicides except mancozeb caused a significant decrease in disease severity under field conditions, but only treatments with triazoles and benzimidazole-triazole mixtures provided significant yield increases (22.7–15.6%) when applied twice. Three applications of oxycarbosin or copper-mancozeb were needed to provide a significant yield increase. Dithiocarbamates (thiram, maneb or mancozeb) or chlorothalonil reduced rust severity but did not provide a significant yield increase.
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identification of resistance to Uromyces pisi pers wint in pisum spp germplasm
Field Crops Research, 2009Co-Authors: Eleonora Barilli, Josefina C. Sillero, Monica Fernandezaparicio, Diego RubialesAbstract:A germplasm collection of 2759 pea accessions was screened for resistance against Uromyces pisi (Pers.) Wint. All accessions displayed a compatible interaction (high infection type) both in adult plants under field conditions and in seedlings under growth chamber conditions, but with varying levels of disease reduction. The identified resistance was based on reduction of disease severity with no associated host cell necrosis, which fits the definition of Partial Resistance. No complete resistance or incomplete resistance based on hypersensitivity was observed.
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Genetic Variation Among and Within Uromyces Species Infecting Legumes
Journal of Phytopathology, 2008Co-Authors: Amero A. Emeran, Josefina C. Sillero, Belen Roman, Zlatko Šatović, Diego RubialesAbstract:Genetic variation of 30 different Uromyces isolates collected on faba bean, lentil, common vetch, pea, chickpea, alfalfa, cowpea and lupin was studied. Random Amplified Polymorphic DNA markers were used showing clear differences among Uromyces species. Uromyces viciae-fabae isolates clustered according to the host, with a clear cluster including all U. viciae-fabae ex Vicia faba isolates. The U. viciae-fabae ex Lens culinaris isolate was the nearest to the cluster of U. viciae faba ex V. faba isolates, followed by U. pisi from Canada and U. viciae-fabae ex V. sativa. No association was found among molecular diversity and virulence or geographic origin within U. vicia-fabae ex V. faba isolates. Among the three U. pisi isolates considered, a great variability was observed and no grouping could be established. The most different isolate from the rest of species considered was U. striatus, followed by U. vignae. The two U. ciceris-arietini isolates clustered together and so did the two U. lupinicolus isolates.
Reinhard Berndt - One of the best experts on this subject based on the ideXlab platform.
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First catalogue of the rust fungi of French Guiana, northern South America
Mycological Progress, 2013Co-Authors: Reinhard BerndtAbstract:An annotated list of the rust fungi (Uredinales or Pucciniales) of French Guiana is presented. It enumerates 68 species of which 57 are new reports for the department and 3, Aecidium plukenetiae , Puccinia kourouensis and P. parianicola , are new to science. Dicheirinia guianensis and Hapalophragmium angylocalycis are excluded from the French Guianan mycobiota. New host plants are reported for Batistopsora crucis-filii , B. pistila , Cerotelium ficicola , C. sabiceae , Crossopsora piperis , Desmella aneimiae , Endophyllum guttatum , Kweilingia divina , Puccinia lateritia , Uredo anthurii and Uromyces anguriae . Previously undescribed characters are presented for Achrotelium lucumae , Chaconia ingae , Cerotelium sabiceae , Prospodium amapaensis , Sphenospora smilacina and Uromyces wulffiae-stenoglossae . Chaconia ingae showed haustorial complexes comprising both intracellular hyphae and D-haustoria. In Cerotelium sabiceae , the haustorial mother cells retained the nuclei while D-haustoria were enucleate. The occurrence of these haustorial types in tropical rust fungi is discussed. Internal basidium formation is described for the first time in Sphenospora : teliospores of S. smilacina produced external or internal basidia. The species richness and composition of the French Guianan rust mycobiota are discussed in a neotropical context.
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Revision of the rust genus Uromyces on Cucurbitaceae.
Mycologia, 2012Co-Authors: Reinhard BerndtAbstract:This study revises Uromyces (Pucciniales or Uredinales) on the economically important plant family Cucurbitaceae and presents descriptions, illustrations and a key to aid determination of the 17 recognized species and four varieties. Seven species are described as new: Uromyces aimeae, U. aquiriensis, U. cucumivorus, U. infarctus, U. naucinus, U. saulensis and U. superstomatalis. Uromyces novissimus occurs on a number of tribes of Cucurbitaceae and is broadly circumscribed as a variable species that comprises four varieties. Variety cissampelidis, var. hellerianus and var. pentastriatus, are new combinations for U. cissampelidis, U. hellerianus and U. pentastriatus that have been regarded so far either as synonyms of U. novissimus or distinct species. The new name U. ernesti-ulei is proposed to replace the illegitimate name U. cayaponiae that refers to a uredinial state. It has been synonymized with U. novissimus as well but is considered a distinct species. Uromyces reynoldsii is reduced to a synonym of ...
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additions to the rust fungi of south africa
Mycological Progress, 2012Co-Authors: Reinhard Berndt, Alan R. WoodAbstract:This paper presents new species, combinations, national reports and host records for the South African rust fungi (Uredinales/Pucciniales). Endophyllum mpenjatiense on cf. Hibiscus sp. (Malvaceae), Phakopsora combretorum (anamorph Uredo combreticola) on the new host Combretum apiculatum (Combretaceae) and Uredo sekhukhunensis on Ziziphus mucronata (Rhamnaceae) are described as new species. Dietelia cardiospermi and E. metalasiae are proposed as new combinations to replace Aecidium cardiospermi on Cardiospermum halicacabum (Sapindaceae) and A. metalasiae on Metalasia spp. (Asteraceae), respectively. Four species are new records for South Africa: Crossopsora antidesmae-dioicae on Antidesma venosum (Euphorbiaceae), Phakopsora ziziphi-vulgaris on Z. mucronata, and Uromyces cypericola and Puccinia subcoronata, both on a new host, Cyperus albostriatus (Cyperaceae). The record of P. subcoronata is the first one from outside the New World. Puccinia scirpi is reported as a possible addition to the South African rust fungi. New host records and observations are presented for Pucciniastrum agrimoniae that is recorded on two new host genera and species, Cliffortia odorata and Leucosidea sericea (Rosaceae), Uromyces cypericola whose urediniospores are described for the first time, Phakopsora stratosa in that spermogonia and Uredo-like aecia were discovered, and for Sphaerophragmium dalbergiae in that characters of the urediniospores are re-evaluated. A lectotype is selected for Aecidium garckeanum and spermogonia are reported for this rust for the first time. The rust fungi of Ehrharta (Poaceae) are discussed and critically evaluated in the light of spore morphology and host species.
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The rust fungi of Luzuriaga (Luzuriagaceae) with description of a new species, Puccinia luzuriagae-polyphyllae
Mycological Progress, 2009Co-Authors: Reinhard BerndtAbstract:Three species of rust fungi (Uredinales), Puccinia perforans, P. fuegiana (= Uromyces skottsbergii), and Aecidium callixenis have been described on members of Luzuriaga (Luzuriagaceae). Puccinia luzuriagae-polyphyllae is added as a new species on Luzuriaga polyphylla from Chile. The rust had been confused hitherto with P. perforans occurring on L. radicans. Both species differ from P. fuegiana on L. marginata by the absence of a uredinial state and several telial characters. The investigated collections of Puccinia species on Luzuriaga indicate that each is restricted to a single host species. A determination key is presented.
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Uromyces umiamensis, a new rust species on Momordica cochinchinensis in India
Mycological Progress, 2009Co-Authors: Reinhard Berndt, Pankaj BaiswarAbstract:Uromyces umiamensis is described as a new rust fungus (Basidiomycota, Uredinales) of Momordica cochinchinensis (Cucurbitaceae) from Meghalaya, in northeastern India. The species differs from the known Uromyces species on members of Cucurbitaceae in terms of the character of the teliospores and aeciospores and its apparently demicyclic life cycle. Besides U. yakushimensis and the present species, all Uromyces species known from cucurbits occur in the New World. A key to known Uromyces species on Cucurbitaceae is provided.
Rubiales Diego - One of the best experts on this subject based on the ideXlab platform.
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Inhibition of early development stages of rust fungi by the two fungal metabolites cyclopaldic acid and epi-epoformin
'Wiley', 2017Co-Authors: Barilli Eleonora, Rubiales Diego, Cimmino Alessio, Masi Marco, Evidente Marco, Evidente AntonioAbstract:Rusts are a noxious group of plant diseases affecting major economically important crops. Crop protection is largely based on chemical control. There is a renewed interest in the discovery of natural products as alternatives to synthetic fungicides for control. In this study we tested two fungal metabolites, namely cyclopaldic acid and epi-epoformin, for their effectiveness in reducing early stages of development of two major rust fungi from the genera Puccinia and Uromyces, P. triticina and U. pisi. Spore germination and appressorium formation were assessed on pretreated detached leaves under controlled conditions. Cyclopaldic acid and epi-epoformin were also tested in infected plants in order to evaluate the level of control achieved by treatments both before and after inoculation
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Resistance to rusts (Uromyces pisi and u. viciae-fabae) in pea
'Czech Academy of Agricultural Sciences', 2014Co-Authors: Barilli Eleonora, Sillero, Josefina C., Prats Elena, Rubiales DiegoAbstract:Pea is the second most important food legume crop in the world. Rust is a pea disease widely distributed, particularly in regions with warm, humid weather. Pea rust can be incited by Uromyces viciae-fabae and by U. pisi. U. viciae-fabae prevails in tropical and subtropical regions such as India and China, while U. pisi prevails in temperate regions. Chemical control of rust is possible, but the use of host plant resistance is the most desired means of rust control. In this paper we revise and discuss the occurrence and incidence of both pathogens on peas, the availability of resistance sources and the present state of the art in pea breeding against this disease.Peer Reviewe
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Response of vetches (Vicia spp.) to specialized forms of Uromyces vicia-fabae and to Uromyces pisi
'Elsevier BV', 2014Co-Authors: Rubiales Diego, Sillero, Josefina C., Emeran, Amero A.Abstract:The genus Vicia includes many species of agricultural interest, such as faba bean and the various vetches that may be infected by rust, with little understanding of the specificity of these interactions. This work contributes to the clarification of host range of Uromyces viciae-fabae and Uromyces pisi, and confirms host specialization within U. viciae-fabae. The differential response of Vicia faba, Vicia sativa and Lens culinaris checks confirms the existence of specialized isolates of U. viciae-fabae. Host range of these host specialized forms of U. viciae-fabae was not so clear cut when we test other species of Vicia. The most specialized form was U. viciae-fabae ex V. faba that was able to infect profusely only faba bean (V. faba), all other Vicia species being highly resistant. Conversely, susceptibility against U. viciae-fabae ex V. sativa was very common in Vicia spp., particularly in those belonging to the subgenus Vicia, although not in V. faba. Still, susceptibility could be identified in a number of accessions of section Cracca such as Vicia cracca, Vicia monantha, Vicia sicula or Vicia villosa. Most Vicia accessions were highly resistant to U. viciae-fabae ex L. culinaris, but a number of accessions could be severely rusted, particularly in species of the subgenus Vicilla but also in some of section Peregrinae of subgenus Vicia. Similarly, most Vicia accessions were highly resistant to U. pisi but a number of accessions could be severely rusted, particularly in species of the subgenus Vicilla and in sections Hypechusa and Peregrinae of subgenus Vicia. This work also identified sources of resistance to the various rusts that can be used in rust resistance breeding. In spite of the susceptibility against various rusts, interesting levels of resistance were identified in crops and related species being based either on hypersensitive response or on reduced severity in spite of a compatible interaction making resistance breeding feasible. © 2012 Elsevier Ltd.This work was supported by the Spanish Ministry of Science and Innovation [AGL2008-01239 and 2011-22524, co-financed by FEDER], and Spanish Agency for International Cooperation (AECI project D/030364/10).Peer Reviewe
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Chemical control of faba bean rust (Uromyces viciae-fabae)
'Elsevier BV', 2013Co-Authors: Emeran, Amero A., Sillero, Josefina C., Fernández-aparicio Mónica, Rubiales DiegoAbstract:The effectiveness of eleven foliar-applied fungicides on faba bean rust (Uromyces viciae-fabae (Pers.) J. Schröt.) and on the seed yield of faba bean (Vicia faba L.) were studied in growth chambers and in the field in Spain. Fungicides were tested at recommended and reduced rates. All the fungicides tested provided very effective preventive control in the growth chamber studies. Triazoles (difenoconazol, epoxiconazol, tebuconazol) and their mixtures with benzimidazoles (carbendazim-flutriafol and carbendazim-flusilazole) provided the most effective curative effect, even at 25% of recommended concentrations. They were followed by dithiocarbamates, copper dithiocarbamate mixture, carboxamide and chlorothalonil. Triazoles, benzimidazole-triazole mixtures and carboxamide maintained their effect until 15 days after fungicide application.Under field conditions, rust infection caused 22-26% yield reduction. All fungicides except mancozeb caused a significant decrease in disease severity under field conditions, but only treatments with triazoles and benzimidazole-triazole mixtures provided significant yield increases (22.7-15.6%) when applied twice. Three applications of oxycarbosin or copper-mancozeb were needed to provide a significant yield increase. Dithiocarbamates (thiram, maneb or mancozeb) or chlorothalonil reduced rust severity but did not provide a significant yield increase. © 2011 Elsevier Ltd.Financial support by Spanish projectsAGL2008-01239 and AECID-D/026716/09 is acknowledged.Peer Reviewe
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Clarification on rust species potentially infecting pea (Pisum sativum L.) crop and host range of Uromyces pisi (Pers.) Wint
'Elsevier BV', 2013Co-Authors: Barilli Eleonora, Sillero, Josefina C., Moral Ana, Rubiales DiegoAbstract:Rust is a serious disease of pea whose casual agent is not always understood. In this paper we studied reaction of pea accessions to seven rust species infecting closely related legumes, finding that indeed pea can be infected mainly by . Uromyces pisi, followed by . Uromyces viciae-fabae. Other rust species like . Uromyces striatus, . Uromyces ciceris-arietini, . Uromyces anthyllidis and . Uromyces vignae can also infect and reproduce on pea, although in a minor extent. All . U. pisi isolates tested were very virulent on pea accessions, but isolates UpPt-03 and UpKeS-05 (from Palmar de Troya, Spain and Kafr-El-Sheik, Egypt respectively) were significantly most infective. In addition to this we studied in detail the host range of . U. pisi by inoculating multiple accessions of various legumes with urediospores of seven isolates of . U. pisi from different geographical origins. Both experiments were performed under controlled conditions. Based on the evidence presented here the host range of . U. pisi is greater than previously recorded, including genotypes belonging to . Cicer arietinum, . Vicia articulada, . Vicia ervilia and . Vicia faba, which were not mentioned before. © 2012 Elsevier Ltd.Financial support by the Spanish ProjectsAGL2008-01239 and P07-AGR02883 is acknowledged.Peer Reviewe
Eleonora Barilli - One of the best experts on this subject based on the ideXlab platform.
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Resistance to rusts (Uromyces pisi and U. viciae-fabae) in pea
Czech Journal of Genetics and Plant Breeding, 2018Co-Authors: Eleonora Barilli, Josefina C. Sillero, E. Prats, Diego RubialesAbstract:Barilli E., Sillero J.C., Prats E., Rubiales D. (2014): Resistance to rusts (Uromyces pisi and U. viciae-fabae) in pea. Czech J. Genet. Plant Breed., 50: 135–143. Pea is the second most important food legume crop in the world. Rust is a pea disease widely distributed, particularly in regions with warm, humid weather. Pea rust can be incited by Uromyces viciae-fabae and by U. pisi . U. viciae-fabae prevails in tropical and subtropical regions such as India and China, while U. pisi prevails in temperate regions. Chemical control of rust is possible, but the use of host plant resistance is the most desired means of rust control. In this paper we revise and discuss the occurrence and incidence of both pathogens on peas, the availability of resistance sources and the present state of the art in pea breeding against this disease.
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Clarification on rust species potentially infecting pea (Pisum sativum L.) crop and host range of Uromyces pisi (Pers.) Wint
Crop Protection, 2012Co-Authors: Eleonora Barilli, Josefina C. Sillero, A. Moral, Diego RubialesAbstract:Abstract Rust is a serious disease of pea whose casual agent is not always understood. In this paper we studied reaction of pea accessions to seven rust species infecting closely related legumes, finding that indeed pea can be infected mainly by Uromyces pisi, followed by Uromyces viciae-fabae. Other rust species like Uromyces striatus, Uromyces ciceris-arietini, Uromyces anthyllidis and Uromyces vignae can also infect and reproduce on pea, although in a minor extent. All U. pisi isolates tested were very virulent on pea accessions, but isolates UpPt-03 and UpKeS-05 (from Palmar de Troya, Spain and Kafr-El-Sheik, Egypt respectively) were significantly most infective. In addition to this we studied in detail the host range of U. pisi by inoculating multiple accessions of various legumes with urediospores of seven isolates of U. pisi from different geographical origins. Both experiments were performed under controlled conditions. Based on the evidence presented here the host range of U. pisi is greater than previously recorded, including genotypes belonging to Cicer arietinum, Vicia articulada, Vicia ervilia and Vicia faba, which were not mentioned before.
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identification of resistance to Uromyces pisi pers wint in pisum spp germplasm
Field Crops Research, 2009Co-Authors: Eleonora Barilli, Josefina C. Sillero, Monica Fernandezaparicio, Diego RubialesAbstract:A germplasm collection of 2759 pea accessions was screened for resistance against Uromyces pisi (Pers.) Wint. All accessions displayed a compatible interaction (high infection type) both in adult plants under field conditions and in seedlings under growth chamber conditions, but with varying levels of disease reduction. The identified resistance was based on reduction of disease severity with no associated host cell necrosis, which fits the definition of Partial Resistance. No complete resistance or incomplete resistance based on hypersensitivity was observed.