Results 51 to 60 of about 1,968 (192)

Reaction of Exotic Soybean Germplasm to Phakopsora pachyrhizi in Uganda [PDF]

Plant Disease, 2008
Host plant resistance is the best long-term strategy for managing soybean rust (Phakopsora pachyrhizi) in endemic areas. Resistance breeding efforts are hampered by the presence of several races of the pathogen that often overcome single resistance genes deployed against them.
H K, Oloka, P, Tukamuhabwa, T, Sengooba, S, Shanmugasundram   +3 more
openaire   +2 more sources

Caracteres epidemiológicos e uso da análise de agrupamento para resistência parcial à ferrugem da soja Epidemiological characters and the use of cluster analysis for characterizing partial resistance to soybean rust

Pesquisa Agropecuária Brasileira, 2007
O objetivo deste trabalho foi avaliar a resistência parcial de genótipos de soja ao fungo Phakopsora pachyrhizi. Calcularam-se o número médio de pústulas, a severidade e a área abaixo da curva de progresso da doença.
Juliana Araújo Santos, Fernando Cézar Juliatti, Verônica Araújo Santos, Analy Castilho Polizel, Fernanda Cristina Juliatti, Osvaldo Toshiuki Hamawaki   +5 more
doaj   +1 more source

Virulence Diversity of Phakopsora pachyrhizi in Mexico

PhytoFrontiers, 2022
Asian soybean rust, caused by the pathogen Phakopsora pachyrhizi, is the main soybean disease in Mexico and worldwide, threatening its production. Knowledge about the virulence of Mexican rust populations (MRPs) is crucial to develop or introduce soybean
Julio César García-Rodríguez, Zeferino Vicente-Hernández, Manuel Grajales-Solís, Naoki Yamanaka   +3 more
doaj   +1 more source

Characterization of Nonhost Resistance of Arabidopsis to the Asian Soybean Rust

Molecular Plant-Microbe Interactions, 2008
Asian soybean rust (ASR), caused by Phakopsora pachyrhizi, is a devastating disease of soybean. We report the use of the nonhost plant Arabidopsis thaliana to identify the genetic basis of resistance to P. pachyrhizi. Upon attack by P.
Marco Loehrer, Caspar Langenbach, Katharina Goellner, Uwe Conrath, Ulrich Schaffrath   +4 more
doaj   +1 more source

Functional Analysis of the Asian Soybean Rust Resistance Pathway Mediated by Rpp2

Molecular Plant-Microbe Interactions, 2011
Asian soybean rust is an aggressive foliar disease caused by the obligate biotrophic fungus Phakopsora pachyrhizi. On susceptible plants, the pathogen penetrates and colonizes leaf tissue, resulting in the formation of necrotic lesions and the ...
Ajay K. Pandey, Chunling Yang, Chunquan Zhang, Michelle A. Graham, Heidi D. Horstman, Yeunsook Lee, Olga A. Zabotina, John H. Hill, Kerry F. Pedley, Steven A. Whitham   +9 more
doaj   +1 more source

The Importance of Phenolic Metabolism to Limit the Growth of Phakopsora pachyrhizi [PDF]

Phytopathology®, 2009
Understanding the metabolic responses of the plant to a devastating foliar disease, soybean rust, caused by Phakopsora pachyrhizi, will assist in development of cultivars resistant to soybean rust. In this study, differences in phenolic metabolism were analyzed between inoculated and noninoculated plants using two susceptible and three resistant ...
Anatoliy V, Lygin, Shuxian, Li, Ramya, Vittal, Jack M, Widholm, Glen L, Hartman, Vera V, Lozovaya   +5 more
openaire   +2 more sources

Fighting Asian soybean rust

Frontiers in Plant Science, 2016
Phakopsora pachyrhizi is a biotrophic fungus provoking Asian soybean rust (SBR) disease. SBR poses a major threat to global soybean production. Though several resistance genes provided soybean immunity to certain P. pachyrhizi races, the pathogen swiftly
Caspar eLangenbach, Ruth eCampe, Sebastian Felix eBeyer, André Nicolai eMüller, Uwe eConrath   +4 more
doaj   +1 more source

Occurrence of Telia of Phakopsora pachyrhizi on Kudzu in Texas

Plant Disease, 2008
The first discovery of Asian soybean rust (ASR) caused by Phakopsora pachyrhizi H. Sydow & Sydow in the continental United States was in Louisiana in 2004 (3). In Texas, the uredial stage of this fungus was first found on kudzu (Pueraria lobata) in November 2005 and 3 months later on soybean (Glycine max) (2). The telial stage of P. pachyrhizi was
T, Isakeit, Y, Jo
openaire   +2 more sources

Differential Response of Common Bean Cultivars to Phakopsora pachyrhizi [PDF]

Plant Disease, 2007
Soybean rust (Phakopsora pachyrhizi) has been reported on common bean (Phaseolus vulgaris) in Asia, South Africa, and the United States. However, there is little information on the interaction of individual isolates of Phakopsora pachyrhizi with common bean germplasm.
M R, Miles, M A, Pastor-Corrales, G L, Hartman, R D, Frederick   +3 more
openaire   +2 more sources

Pathogenic Variation ofPhakopsora pachyrhiziInfecting Soybean in Nigeria [PDF]

Phytopathology®, 2009
Soybean rust, caused by Phakopsora pachyrhizi, is an important disease in Nigeria and many other soybean-producing countries worldwide. To determine the geographical distribution of soybean rust in Nigeria, soybean fields were surveyed in the Derived Savanna (DS), Northern Guinea Savanna (NGS), and Southern Guinea Savanna (SGS) agroecological zones in ...
Twizeyimana, M., Ojiambo, P.S., Sonder, Kai, Ikotun, T., Hartman, G.L., Bandyopadhyay, Ranajit   +5 more
openaire   +3 more sources