Results 21 to 30 of about 4,432 (210)

Characteristics of fungicide resistance in Asian soybean rust (Phakopsora pachyrhizi) in Paraguay for 2022-2023: insights from genetic mutations and molecular dynamics simulations. [PDF]

Pest Manag Sci
Phakopsora pachyrhizi in Paraguay showed diverse resistance to DMI, SDHI, and QoI fungicides at both regional and intra‐field levels, likely driven by target mutation genes. Abstract BACKGROUND Phakopsora pachyrhizi, the causative agent of Asian soybean rust, poses a major threat to soybean production in South America. The rising incidence of fungicide
Hagihara R, Okada R, Hayashi T, Tateishi H, Morel W, Yamanaka N.   +5 more
europepmc   +2 more sources

Virulence Diversity of Phakopsora pachyrhizi in Mexico [PDF]

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 cultivars with resistance to this disease. This study investigated the geographic variation in the
Julio César García-Rodríguez, Zeferino Vicente-Hernández, Manuel Grajales-Solís, Naoki Yamanaka   +3 more
openaire   +3 more sources

Population Genomics Reveals Distinct Lineage of the Asian Soybean Rust Fungus Phakopsora pachyrhizi in the United States of America Unrelated to Brazilian Populations. [PDF]

Mol Plant Pathol
Genomic analysis identifies the US population of Asian soybean rust fungus Phakopsora pachyrhizi as genetically distinct from South American and East African isolates, offering new insights into its global diversity. ABSTRACT Asian soybean rust (ASR), caused by the obligate biotrophic fungus Phakopsora pachyrhizi, was first reported in the continental ...
Ferreira EGC, Inoue Y, Murithi HM, Nardwattanawong T, Cheema J, Grootens R, Paes SA, Mahuku G, Joosten MHAJ, Hartman G, Yamaoka Y, Aime MC, Brommonschenkel SH, van Esse HP, Gupta YK.   +14 more
europepmc   +2 more sources

Characterizing Resistance to Phakopsora pachyrhizi in Soybean [PDF]

Plant Disease, 2011
Resistance in soybean to Phakopsora pachyrhizi, the cause of soybean rust, is characterized by either reddish-brown (RB) lesions or an immune response. The RB type of resistance can be incomplete, as evidenced by the presence of sporulating uredinia within lesions. Susceptibility, on the other hand, is exemplified by tan-colored (TAN) lesions, and can
M R, Miles, M R, Bonde, S E, Nester, D K, Berner, R D, Frederick, G L, Hartman   +5 more
openaire   +2 more sources

Preservation of Phakopsora pachyrhizi Uredospores [PDF]

Journal of Phytopathology, 2007
AbstractThis study compared different temperatures and dormancy‐reversion procedures for preservation of Phakopsora pachyrhizi uredospores. The storage temperatures tested were room temperature, 5°C, −20°C and −80°C. Dehydrated and non‐dehydrated uredospores were used, and evaluations for germination (%) and infectivity (no.
G. Q. Furtado, S. A. M. Alves, A. B. C. Czermainski, N. S. Massola   +3 more
openaire   +1 more source

Phakopsora pachyrhizi in vitro sensitivity to fungicides [PDF]

Summa Phytopathologica, 2013
Universidade de Passo Fundo – UPF, PassoFundo, RS. Bolsista CNPq. *Parte da tese de doutorado da primeira autoraAutor pata correspondencia: Erlei Melo Reis (erleireis@upf.br)Data de chegada: 03/01/2013. Aceito para publicacao em: 10/07/2013.
Blum, Marta Maria Casa, Reis, Erlei Melo
openaire   +3 more sources

A loop-mediated isothermal amplification assay for the rapid diagnosis of soybean rust caused by Phakopsora pachyrhizi

Phytopathology Research, 2023
Soybean rust caused by the fungus Phakopsora pachyrhizi is one of the most destructive diseases to soybean production worldwide. For the rapid diagnosis and the control of soybean rust, we developed a loop-mediated isothermal amplification (LAMP) assay ...
Haibing Ouyang, Zhichao Zhang, Guangzheng Sun, Huawei Yang, Wenwu Ye, Yuanchao Wang   +5 more
doaj   +1 more source

Archaeophytopathology of Phakopsora pachyrhizi, the Soybean Rust Pathogen [PDF]

Plant Disease, 2015
Herbarium specimens are useful to compare attributes of the past to attributes of today and predictions into the future. In this study, herbarium specimens from 1887 to 2006 were used to identify Phakopsora pachyrhizi and P. meibomiae, the two known fungal species that cause soybean rust.
James S, Haudenshield, Glen L, Hartman
openaire   +2 more sources

Identifying and Quantifying Phakopsora pachyrhizi Spores in Rain [PDF]

Phytopathology®, 2009
In summers of 2005 and 2006, rain was collected weekly at over 100 selected National Atmospheric Deposition Program/National Trends Network sites across the soybean-growing region of the central and eastern United States. Rain samples were screened for Phakopsora pachyrhizi (causal agent of soybean rust) DNA using a nested real-time polymerase chain ...
C W, Barnes, L J, Szabo, V C, Bowersox
openaire   +2 more sources

Distribuição e identificação de Phakopsora pachyrhizi, agente causal da ferrugem da soja no estado de Minas Gerais Identification and distribution of Phakopsora pachyrhizi causal agente of the Asian rust in the Minas Gerais State

Ciência e Agrotecnologia, 2007
A ferrugem da soja é causada por duas espécies: Phakopsora pachyrhizi e P. meibomiae. No Brasil, a doença tem sido responsável por grandes perdas dessa leguminosa nas últimas safras.
Patrícia Ferreira Cunha Sousa, Eduardo Alves, Hilário Antônio de Castro, Paulo Estevão de Souza, Álvaro Manuel Rodrigues de Almeida, Silvana Regina Hochenbach   +5 more
doaj   +1 more source