background preloader

Autres informations

Facebook Twitter

MTT_FI - Dickeya and Pectobacterium species: consistent threats to potato production in Europe. THE SCOTTISH GOVERNMENT - Présentation : Controlling bacterial diseases of potato: research through to policy. WIKIPEDIA - Jambe noire. Un article de Wikipédia, l'encyclopédie libre.

WIKIPEDIA - Jambe noire.

Symptômes de jambe noire sur un champ de pomme de terre. La jambe noire, appelée aussi « pourriture molle », « pourriture bactérienne », « pourriture lenticellaire », est une maladie bactérienne qui affecte les champs de pomme de terre ainsi que les tubercules en cours de stockage. Elle est présente dans toutes les régions de culture de la pomme de terre, aussi bien dans les régions tempérées que dans les régions chaudes. Cette maladie se manifeste au champ par des phénomènes de pourriture affectant tant les tiges qui se flétrissent et prennent une coloration foncée dans les parties basses (symptôme de la jambe noire) que les tubercules qui pourrissent de l'intérieur n'étant retenus que par la peau. En conservation, les tubercules atteints peuvent contaminer par contact le reste du stock. WIKIPEDIA - Dickeya solani. SCRI LIVING TECHNOLOGY - Poster : Genomics approaches uncover an alternative life-style of the plant pathogen Pectobacterium atrosepticum.

UNIVERSITY OF PRETORIA 02/09/09 Thèse en ligne : Etiology of soft rot and blackleg on potatoes in South Africa. Anais da Academia Pernambucana de Ciência Agronômica, Recife, vol. 2, p.121-153, 2005. PECTINOLYTIC PLANT PATHOGENIC BACTERIA, G.

Anais da Academia Pernambucana de Ciência Agronômica, Recife, vol. 2, p.121-153, 2005. PECTINOLYTIC PLANT PATHOGENIC BACTERIA, GENERA Pectobacterium AND Dickeya – guatemalt

Institut National des Sciences Appliquées de Lyon 20/12/07 Thèse en ligne : Rôle de la protéine associée au nucléoïde Fis dans l. HUTTON_AC_UK - Poster : Role of Pectobacterium atrosepticum (Pba) effectors in the manipulation of host defences. FERA DEFRA - NOV 2009 - Bacterial Rots of Potato Tubers. APSNET - 2004 - Blackleg of potato. De Boer, S.

APSNET - 2004 - Blackleg of potato

H. 2004. Blackleg of potato. The Plant Health Instructor. DOI:10.1094/PHI-I-2004-0712-01 Blackleg of potato Erwinia carotovora subsp. atroseptica (Synonym: Pectobacterium atrosepticum) potato (Solanum tuberosum) AuthorSolke H. The blackened stem and wilted leaves are typicalof the potato blackleg disease. Introduction Potatoes are grown world-wide and the crop is usually considered to be the fourth most important staple food source after wheat, rice, and corn. Symptoms and signs Foliage Blackleg disease sometimes develops early in the growing season soon after the plants emerge. In addition to early blackleg, the disease may also develop later during the potato growing season. KPK, Agricultural University, Peshawar – Pakistan. - BLACKLEG AND SOFT ROT OF POTATO IN KPK: INOCULUM SOURCES, DISEASE INCIDANCE. The Journal of Biological August 29, 2008 DsbA Plays a Critical and Multifaceted Role in the Production of Secreted Virulence Fa. The soft rot erwinias are Gram-negative, enteric bacteria and economically important plant pathogens.

The Journal of Biological August 29, 2008 DsbA Plays a Critical and Multifaceted Role in the Production of Secreted Virulence Fa

Erwinia carotovora subsp. atroseptica (also called Pectobacterium atrosepticum), Erwinia carotovora subsp. carotovora (also called Pectobacterium carotovorum), and Erwinia chrysanthemi (also called Dickeya sp.) cause soft rot disease of crop plants. E. carotovora subsp. atroseptica is exclusively a pathogen of potato, causing blackleg disease of stems and rotting of tubers (1, 2). PLANDEPOMMEDETERRE_ORG - Jambe noire et pourriture noire. La certification des plants de pomme de terre a pour base le règlement technique général et le règlement technique annexe de production, du contrôle et de la certification des semences pris par arrêté du Ministère de l'Agriculture.Ces règlements prennent, notamment, en compte les directives de commercialisation 66/403/CE et phytosanitaire 2000/24/CE.

PLANDEPOMMEDETERRE_ORG - Jambe noire et pourriture noire

Des règles sont définies, en particulier, pour la multiplication des cultures (établissements admis au contrôle, schéma généalogique, isolement, etc.), la conservation des plants (conditions de stockage), la notation des cultures (normes en végétation) et des lots (normes lot) pour lesquels l'identité, la pureté variétale et l'état sanitaire sont les principaux paramètres. BIO-PROTECTION_ORG_NZ - We are identifying and characterising bacteria that cause diseases of potato using comparative genomics and functional genetics.

Soft rot Enterobacteriaceae and potato Potato (Solanum tuberosum) is the third most important food crop worldwide in terms of both cultivated areas and total production.

BIO-PROTECTION_ORG_NZ - We are identifying and characterising bacteria that cause diseases of potato using comparative genomics and functional genetics.

Plant disease is a major limit on potato production and food security, with an estimated 22% of annual potato yields lost to diseases and pests. Soft rot Enterobacteriaceae are pathogenic bacteria that cause soft rot and blackleg in potatoes. These potato diseases are economically important in New Zealand and overseas. Dr Andy Pitman's team in the Centre are using comparative genomics to classify disease-causing soft rot Enterobacteriaceae known as Pectobacterium. Virulence factors and pathogenicity islands In these disease-causing bacteria, virulence factors are found on regions of DNA called pathogenicity islands. Researchers in the Centre have identified and characterised several novel virulence factor genes in soft rot Enterobacteriaceae that are vital for disease development. Plant responses to infection. SCRI_AC_UK - Présentation : Onward into battle - Dickeya (Erwinia chysanthemi) gets the upper hand. PEST ALERT 11/12/09 New strain of blackleg of potato, Dickeya solani, causing significant losses in Europe.

THE JAMES HUTTON INSTITUTE - Présentation : Controlling Soft Rot Bacteria through Epidemiology and Resistance Screening. Scottish Government Dickeya Solani - A threat to our Potatoes Subscribe for updates Register to receive email news alerts, daily digest, weekly roundup or Topic newsletters.

THE JAMES HUTTON INSTITUTE - Présentation : Controlling Soft Rot Bacteria through Epidemiology and Resistance Screening

Menu A new bacterial disease, "Dickeya solani", has emerged as a major threat to potato production in Europe. Our summary reports on this work can be viewed at; Growing crops: Report 2014 - great results continue Report 2013 - another good year no positives. AGRI-FOOD AND BIOSCIENCES INSTITUTE – Présentation: RISK ASSESSMENT FOR THE TRANSMISSION OF DICKEYA SPP. FROM THE PROCESSING OF INFECTED IMPORTED WARE POTATOES IN N. IRELAND. Agrarforschung Schweiz 4 (10): 424–431, 2013 Empfindlichkeit der Kartoffel gegenüber der durch Dickeya spp. verursachten Stängelfäule.