News on Phytophthora

Research shows that crops with stacks of two or more resistance genes from closely related species, introduced into the crop via for instance genetic engineering, combined with the simultaneous introduction of resistance management, can ensure the long-term resistance of these plants to economically significant and aggressive diseases.

The J.R. Simplot Company is pleased that the USDA has deregulated the Russet Burbank variety of the second generation of Innate™ potatoes. Simplot is looking forward to the completion of the EPA registration and FDA consultation before the second generation of Innate™ potatoes can be introduced into the marketplace.

Scientific results of the potato field trials in Flanders and the Netherlands demonstrate that gene stacking is necessary for a strong and lasting resistance to late blight (Phytophthora infestans).

Late blight has become widespread in Idaho and is called the worst Idaho late blight outbreak since 1998.

Researchers in the United Kingdom aim for a new commercial potato that resists many of the worst vulnerabilities of potato crops around the world.

A research scientist at Agriculture and Agrifood Canada has discovered that naturally-occurring bacteria in soil may offer protection against late blight (Phytophthora Infestans).

Con trabajos de investigación sobre mosca minadora de las hojas (Liriomyza huidobrensis), tizón tardío (Phytophthora infestans), sarna negra (Rhizoctonia solani), marchitamiento y punta (Fusarium solani), bioinsumos y producción de papa.

El evento se realizó en Brazov, Rumania, entre el 10 y 13 de mayo.

A team of researchers tracking the 2014 population of the potato late blight pathogen have added to the 2013 data to extend the spatial diversity plots and combine this with novel genetic analysis tools that visualise the distribution and diversity of dominant clones and reveals novel genetically diverse isolates in some regions.

La enfermedad no es nueva pero se agudizó debido a los cambios climáticos “poco comunes”.

Potato growers and agronomists in he United Kingdom will be better prepared to cope with more aggressive blight strains this season, with a new BlightCast warning tailored to focus on infections now typically occurring earlier in the season at cooler temperatures.

Científicos encontraron un gen para ayudar a proteger las papas de una plaga que desató una devastadora hambruna en Irlanda en el siglo XIX.

In this week 'Nature Plants', scientists from Wageningen University and The Sainsbury Laboratory report the identification of a resistance gene that enhances resistance against potato late blight from a South American wild relative of cultivated potatoes.

Scientists at the NEIKER-Tecnalia Basque Institute for Agricultural Research and Development have studied the genetic structure of Phytophthora infestans —responsible for potato blight—.

Científicos del Instituto Vasco de Investigación y Desarrollo Agrario, NEIKER-Tecnalia han realizado el estudio de la estructura genética de Phytophthora infestans -causante del tizón tardío de la papa- y han identificado por primera vez en España la existencia del genotipo Blue13 (13_A2). El hallazgo es fruto de los resultados obtenidos en la tesis doctoral del ingeniero agrónomo Néstor Alor, presentada en la Universidad de Lleida y dirigida por el Dr. José Ignacio Ruiz de Galarreta.

Resultados del trabajo adelantado en Argentina, cuyos resultados fueron presentados en el último congreso de ls ALAP.

El tizón tardío de la papa puede ser controlado con varias estrategias, incluyendo la resistencia del huesped. Desafortunadamente, los esfuerzos hasta la fecha para utilizarla han llevado a un éxito limitado. Este es el tema principal del artículo escrito por G. A. Forbes; M. Huarte para la Revista Latinoamericana de la Papa, Volumen 18 (2), 2014.

Resumen de la ponencia que sobre el tema se presentó en el XXVI Congreso bienal de la Asociación Latinoamericana de la Papa (ALAP), celebrado recientemente en Bogotá.