Letter to the Editor: The Ralstonia research community rejects the proposal to classify phylotype I Ralstonia into the new species Ralstonia nicotianae
2023
Lowe-Power, Tiffany | Sharma, Parul | Alfenas-Zerbini, Poliane | Álvarez, Belén | Arif, Mohammad | Baroukh, Caroline | Bocsanczy, Ana Maria | Biosca, Elena | Castillo, Jose | Cellier, Gilles | Coutinho, Teresa Ann | Drenth, Andre | Friman, Ville-Petri | Genin, Stéphane | Guidot, Alice | Hikichi, Yasufumi | Huang, Qi | Iyer-Pascuzzi, Anjali | Kai, Kenji | Pecrix, Yann | Poussier, Stéphane | Ray, Jane Denise | Rossato, Maurício | Schomer, Rebecca | Siri, María Inés | Vinatzer, Boris | Allen, Caitilyn | University of California [Davis] (UC Davis) ; University of California (UC) | Virginia Tech [Blacksburg] | Universidade Federal de Viçosa [Brasil] = Federal University of Viçosa [Brazil] = Université fédérale de Viçosa [Brésil] (UFV [Brésil]) | IMIDRA MADRID ESP ; Partenaires IRSTEA ; Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) | University of Hawai‘i [Mānoa] (UHM) | Laboratoire des Interactions Plantes Microbes Environnement (LIPME) ; Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | Universitat de València = University of Valencia (UV) | Yachay Tech University | Unité Ravageurs et agents pathogènes tropicaux (RAPT) ; Laboratoire de la santé des végétaux (LSV) ; Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES)-Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES) | Osaka Metropolitan University | The University of Queensland (UQ [All campuses : Brisbane, Dutton Park Gatton, Herston, St Lucia and other locations]) | Department of Applied Chemistry and Microbiology [Helsinki] ; Helsingin yliopisto = Helsingfors universitet = University of Helsinki | Kochi University | USDA-ARS : Agricultural Research Service | Purdue University [West Lafayette] | Peuplements végétaux et bioagresseurs en milieu tropical (UMR PVBMT) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Université de La Réunion (UR)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | Northern Territory Government | Universidade de Brasilia = University of Brasilia [Brasília] (UnB) | School of Plant Sciences [Tucson] ; University of Arizona-College of Agriculture & Life Sciences [University of Arizona] ; University of Arizona | Universidad de la República [Montevideo] (UDELAR) | University of Wisconsin-Madison
International audience
Show more [+] Less [-]English. The Ralstonia solanacearum species complex (RSSC) is a group of globally important plant pathogens. Bacteria in this very large and genetically diverse group all colonize the xylem elements of angiosperm plants and cause high-impact wilting diseases of many crops. Because they threaten economic and food security, several RSSC subgroups are strictly regulated as quarantine pests (See “Regulation” section of References). Biologically meaningful and consistent nomenclature is essential for organisms that have major economic and regulatory importance like plant pathogenic Ralstonia. There are currently three species of Ralstonia wilt pathogens: R. pseudosolanacearum (corresponding to two phylogenetic groups that are described in the literature as phylotypes I and III), R. solanacearum (phylotypes IIA, IIB, and IIC), and R. syzygii (phylotype IV, containing three subspecies: subsp. syzygii, subsp. celebensis, and subsp. indonesiensis). A recent paper proposed re-classifying phylotype I as a new species named “Ralstonia nicotianae” (Liu et al. 2023). The purpose of this commentary is to register our objection to the taxon “Ralstonia nicotianae”.
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