Pseudomonas savastanoi

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Pseudomonas savastanoi
Olive branch with a tumor caused by P. savastanoi.

Olive branch with a tumor caused by P. savastanoi .

Systematics
Domain : Bacteria (bacteria)
Class : Gammaproteobacteria
Order : Pseudomonadales
Family : Pseudomonadaceae
Genre : Pseudomonas
Type : Pseudomonas savastanoi
Scientific name
Pseudomonas savastanoi
( Janse 1982) Gardan et al. 1992

Like all pseudomonads , Pseudomonas savastanoi isa polar flagellated, rod-shaped, gram-negative bacterium . According to the latest findings, P. savastanoi belongs to the P. syringae complex, more precisely to the second genome species. P. savastanoi has many pathovars , of which the patovar pv. Savastanoi the tubercular disease in the olive tree ( Olea europaea ) triggers.

Systematics

According to current opinion, the scientifically correct name is Pseudomonas syringae subsp. savastanoi . For better understanding and because the systematics of the species P. syringae has been constantly changing over the past few years, the name P. savastanoi is still the name used in most publications. P. savastanoi is one of the second of nine genomic species that make up the P. syringae complex. This complex was formed on the basis of DNA-DNA hybridizations and multilocus typing and is used to further subdivide the species. This is necessary because the relationships between the over 50 different pathovars have not yet been finally clarified. The P. syringae -Pathovare glycinea, phaseolicola and savastanoi were actually combined in a new species P. savastanoi , but this had to be revised again due to the latest results

Pathovars

The P. savastanoi pathovars are very host-specific and mainly attack woody plants, mostly from the Oleaceae family . The Pathovar pv. Savastanoi attacks Olea europaea and Mandevilla sanderi , the Pathovar pv. Nerii has Nerium oleander as host. Other plants that are attacked by P. savastonoi are, for example, privet ( Ligustrum vulgare ), mountain ash ( Sorbus aucuparia ) and jasmine ( Jasminum ). The naming of the pathovars has not yet been finally clarified either. For example, the pathovar that attacks the olive tree is known as pv. Savastanoi and pv. Olea.

Pathogenesis

The production of indole-3-acetic acid and cytokines is important for tumor induction .

history

Already around 300 BC A disease was described on olive trees that led to tumor formation, reduced growth and reduced harvest. The disease is known as tubercle disease and a bacterium was first suspected as a trigger in 1886. It has meanwhile been established that the growths caused by hyperplasia and hypertrophy are caused by P. savastanoi pv. Savastanoi.

Individual evidence

  1. ↑ Pablo Rodríguez-Palenzuela, Isabel M. Matas, Jesús Murillo, Emilia López-Solanilla, Leire Bardaji, Isabel Pérez-Martínez, Martín E. Rodríguez-Moskera, Ramón Penyalver, Maria M. López, José M. Quesada, Bryan S. Biehl, Nicole T. Perna, Jeremy D. Glasner, Eric L. Cabot, Eric Neeno-Eckwall and Cayo Ramos: Annotation and overview of the Pseudomonas savastanoi pv. Savastanoi NCPPB 3335 draft genome reveals the virulence gene complement of a tumor-inducing pathogen of woody hosts . In: Environmental Microbiology . Vol. 12, No. 6, 2010, pp. 1604-1620
  2. ↑ L. Gardan, H. Shafik, S. Belouin, R. Broch, F. Grimont, PAD Grimont: DNA relatedness among the pathovar strains of Pseudomonas syringae subsp. savastanoi Janse (1982) and proposal of Pseudomonas savastanoi sp. nov. In: International Journal of Systematic Bacteriology . Vol. 42, 1992, pp. 606-612; doi : 10.1099 / 00207713-42-4-606
  3. ↑ L. Gardan, H. Shafik, S. Belouin, R. Broch, F. Grimont, PAD Grimont: DNA relatedness among the pathovars of Pseudomonas syringae and description of Pseudomonas tremae sp. nov. and Pseudomonas cannabina sp. nov. (ex Sutic and Dowson 1959) . In: International Journal of Systematic Bacteriology . Vol. 49, 1999, pp. 469-478; doi : 10.1099 / 00207713-49-2-469
  4. ↑ Luca Comai, Tsune Kosuge: Involvement of plasmid deoxyribonucleic acid in indoleacetic acid synthesis in Pseudomonas savastanoi . In: Journal of Bacteriology . Vol. 143, No. 2, 1980, pp. 950-957
  5. ↑ Luca Comai, Tsune Kosuge: Cloning and characterization of iaaM, a virulence determinant of Pseudomonas savastanoi . In: Journal of Bacteriology . Vol. 149, No. 1, 1982, pp. 40-46
  6. ↑ A. Sisto, MG Cipriani, M. Morea: Knot formation caused by Pseudomonas syringae subsp. savastanoi on olive plants is hrp-dependent. In: Phytopathology . Vol. 94, 2004, pp. 484-489

Web links

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