Pectobacterium spp. et Dickeya spp. de la pomme de terre : nouvelle nomenclature pour Erwinia spp. symptomatologie épidémiolo

Hélias, Valerie

doi:10.1684/agr.2008.0216

Cited by 9 publications

(5 citation statements)

References 28 publications

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“…High soil moisture due to abundant rainfall, poor drainage, heavy soils, or irrigation, influences disease development and the opening of the lenticels which are further entry points for soil-borne pathogens into the tuber (Helias 2008). Several diseases, especially bacterial diseases, are enhanced by high moisture content (Table 2), but few diseases are favored by low levels of moisture.…”

Section: Soil Moisturementioning

confidence: 99%

See 1 more Smart Citation

Potato soil-borne diseases. A review

Fiers¹,

Edel-Hermann²,

Chatot³

et al. 2011

Agron. Sustain. Dev.

151

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Potato crop is the fourth main food crop in the world and it will certainly feed a big part of the global population in the next years. The economical outlets for this crop are great; however, numerous diseases either soil-or airborne can cause huge losses in the production. Worldwide, about 40 soil-borne diseases affect potato and cause severe damages especially on tubers, the economically most important part of the plant. The occurrence and development of soilborne diseases depend on very diverse factors affecting either the pathogen or the plant. Favorable conditions for potato diseases development are frequently the same as the conditions needed for potato growth: temperature between 10°C and 25°C, high humidity, medium pH, etc. Adapted cultural practices such as a rotation longer than 4 years, appropriate fertilization and water management, an adapted delay between haulm killing and harvest, and dry and cool conditions for tuber storage are good ways to control potato diseases. In most cases, potato pathogens develop specific survival forms, dissemination ways and host penetration methods. The genetic variability of the pathogens implies the use of adapted diagnostic and control methods. Decision support systems developed to predict yield losses allow choosing good control methods such as the use of healthy seeds, adapted pesticides, cultural practices, and biological control agents for each potato disease. The complexity of the interactions between a pathogen and its host, influenced by biotic and abiotic factors of the environment, make the control of the diseases often very difficult. However, deep knowledge of pathosystems allows setting up integrated pest management systems allowing the production of healthy and good quality potatoes.

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Section: Soil Moisturementioning

confidence: 99%

“…Since Erwinia has been renamed and divided into two different genera, Pectobacterium and Dickeya (Helias 2008), bacterial soft rot previously attributed to Erwinia carotovora, Erwinia atroseptica, and Erwinia chrysanthemi is in fact one disease caused by several species belonging to different genera (Table 5). Pectobacterium spp.…”

Section: Genetic Variabilitymentioning

confidence: 99%

Potato soil-borne diseases. A review

Fiers¹,

Edel-Hermann²,

Chatot³

et al. 2011

Agron. Sustain. Dev.

151

View full text Add to dashboard Cite

show abstract

“…Soft rot as already described, microorganisms are the main cause of it, which act on several parts of the host plant, namely: pale green or yellowish leaves and stunting of the plant, which occurs during the storage of fruits and vegetables especially in places with high humidity [25].…”

Section: Symptomsmentioning

confidence: 98%

Microbial soft rot of cultivated fruits and vegetables

Chahrazade¹

2020

Alger. j. biosciences

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The nutritional richness of fruits and vegetables makes them an ideal target for microorganisms, causing in particular soft rot. The microorganisms responsible for this pathology are generally found in the environment, and are endowed with a very important enzymological power, the main action of their pathogenicity. These enzymes, which allow the degradation of the plant cell wall, allow them to cross the protective wall of the plant, causing a liquefaction of tissues, whose environmental conditions as well as transport and storage conditions favour the development of these phytopathogens. A better understanding of spoilage microorganisms and the characteristics of spoilage should allow the development of new conservation and protection technologies and reduce the loss of vegetables due to spoilage. This review summarizes the main literature data on soft rot, and the diversity and mode of action of the main microbial causal agents.

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“…Seules des mesures prophylactiques, basées sur une hygiène générale des exploitations et des semences ainsi que l'utilisation de pratiques culturales raisonnées et peu mécanisées, permettent de limiter les dégâts enregistrés (Priou et Jouan, 1996). En tenant compte des pratiques agronomiques actuelles, notamment des cultures utilisées lors de la rotation et d'études épidémiologiques réalisées récemment au champ, il est possible de limiter les pertes sur pieds dues à ces pathogènes (Hélias, 2008). Des mesures visant à limiter la présence des pathogènes sur le tubercule après récolte et leur dissémination dans l'environnement sont à l'étude.…”

Section: Lutte Chimiqueunclassified

Lutte contre les maladies bactériennes de la pomme de terre dues aux Pectobacterium spp. (Erwinia carotovora)

Latour

Faure

Diallo

et al. 2008

Cahiers Agricultures

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Les bactéries macergènes appartenant aux espèces Pectobacterium atrosepticum et Pectobacterium carotovorum sont responsables de dégâts importants lors de la culture et de la conservation après récolte des tubercules de pomme de terre. L'espèce bactérienne impliquée et la gravité des pertes dépendent de facteurs environnementaux, en particulier de l'humidité et de la température, ainsi que du potentiel infectieux des sols. Aucun traitement ne permet aujourd'hui de lutter efficacement contre cette maladie. Dans cette revue, nous présentons les travaux récents concernant les méthodes de lutte chimique, génétique et biologique mises en oeuvre pour limiter l'action néfaste de ces bactéries. De nouvelles stratégies dont le but est de perturber la communication quorum-sensing des Pectobacteria sont discutées. L'utilisation d'inocula bactériens et/ou de biostimulateurs des populations bactériennes non pathogènes est notamment envisagée pour dégrader les signaux de quorum-sensing produits par l'agent pathogène. Abstract Control of bacterial diseases of potato caused by Pectobacterium spp. (Erwinia carotovora)Pectinolytic bacteria belonging to Pectobacterium atrosepticum and Pectobacterium carotovorum species are the causal agents responsible for important damage during the culture and storage of potato tubers. The bacterial species involved and the severity of damages depend on several environmental factors, such as humidity and temperature, as well as infectious potential of soils. There is currently no treatment to effectively control the virulence of the pathogens. In this review, recent works on chemical, genetic and biological strategies developed to limit the harmful action of these bacteria are presented. Novel strategies targeting the quorum-sensing communication of Pectobacteria are also discussed. The use of bacterial inocula and/or bioactivators stimulating the nonpathogenic bacteria are proposed to degrade the quorum-sensing signals of the pathogen.

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Pectobacterium spp. et Dickeya spp. de la pomme de terre : nouvelle nomenclature pour Erwinia spp. symptomatologie épidémiolo

Cited by 9 publications

References 28 publications

Potato soil-borne diseases. A review

Potato soil-borne diseases. A review

Microbial soft rot of cultivated fruits and vegetables

Lutte contre les maladies bactériennes de la pomme de terre dues aux Pectobacterium spp. (Erwinia carotovora)

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