Ralstonia solanacearum Race 3 Biovar 2 Causes Tropical Losses and Temperate Anxieties

Abstract

R. solanacearum Race 3 biovar 2, which causes potato brown rot and Southern wilt of geranium, is a high-consequence quarantine pathogen in Europe and North America and causes large crop losses in tropical highlands. This practical review emphasizes prevention, detection, diagnosis, and effective management of diseases caused by this destructive pathogen. Accepted for publication 17 January 2009. Published 13 March 2009.

Characterization of isolates of Ralstonia solanacearum biovar 2, pathogenic to Eucalyptus "urograndis" hybrids

“…To make a more complete identification of R. solanacearum strains it is currently necessary to add to biochemical tests a DNA based method (Champoiseau & Jones, 2009). Thus, the primers used in the PCRs corroborated the biochemical tests.…”

Ability Test of Several Antagonists to Control Potato Bacterial Wilt in the Field

“…Potato plant disease considered very harmful is bacterial wilt (Ralstonia solanacearum) (Champoiseau et al, 2009). Plants attacked by this pathogen will languish.…”

Técnicas para el aislamiento, identificación y caracterización molecular de cepas de Ralstonia solanacearum relacionadas a Moko del plátano

“…solanacearum se subdivide en cinco biovares, con base en su metabolismo de carbohidratos, y cinco razas, en base al rango de hospedantes que infecta (Denny y Hayward, 2001;Fegan y Prior, 2005;Champoiseau et al, 2009). Las razas pueden ser hospedante-específico como las 4 y 5 que infectan jengibre y mora respectivamente, o pueden presentar un amplio rango como la raza 1 (tomate, papa, berenjena, entre otros), la raza 3 (papa, tomate y geranio) y la raza 2 (heliconias y Mazatán, Suchiate, and Tapachula in the state of Chiapas; in the municipal areas of Centro, Cunduacán, Huimanguillo, Jalapa, Teapa, and Cárdenas in the state of Tabasco, and in Santiago Ixcuintla in the state of Nayarit.…”

“…solanacearum is subdivided into five biovars, based on its carbohydrate metabolism, and five races, based on the range of hosts it infects (Denny and Hayward, 2001;Fegan and Prior, 2005;Champoiseau et al, 2009). Races can be hostspecific, such as races 4 and 5, which infect ginger and blackberry, respectively, or they can present a wide range, such as race 1 (tomato, potato, eggplant, and others), race 3 (potato, tomato, and geranium), and race 2 (heliconia and bananas) (Denny and Hayward, 2001;Champoiseau et al, 2009).…”

“…Classification into biovars does not reflect the genetic background of the strains, so a genetic classification scheme is currently used, hierachically organized into the categories of phylotypes and sequevars (Fegan and Prior, 2005;Prior et al, 2016 Hayward, 2001;Champoiseau et al, 2009).…”