Results 31 to 40 of about 7,280 (204)

Evolution of an Avirulence Gene, AVR1-CO39, Concomitant with the Evolution and Differentiation of Magnaporthe oryzae

Molecular Plant-Microbe Interactions, 2005
The significance of AVR1-CO39, an avirulence gene of the blast fungus corresponding to Pi-CO39(t) in rice cultivars, during the evolution and differentiation of the blast fungus was evaluated by studying its function and distribution in Pyricularia spp ...
Yukio Tosa, Jun Osue, Yukiko Eto, Hong-Sik Oh, Hitoshi Nakayashiki, Shigeyuki Mayama, Sally A. Leong   +6 more
doaj   +1 more source

Capacidad de infección de suspensiones de Pyricularia oryzae con diferentes periodos de conservación

Revista Investigaciones y Estudios de la UNA, 2021
El brusone del trigo causado por Pyricularia oryzae patotipo Triticum, es una de las mayores amenazas para la producción de trigo en Sudamérica (5-100% de perdidas).
Oscar Frutos, Yessica Reyes, Alice Chávez, Mohan Kolhi   +3 more
doaj   +1 more source

Hot spots for diversity of Magnaporthe oryzae physiological races in irrigated rice fields in Brazil Alta diversidade de raças fisiológicas de Magnaporthe oryzae em áreas de arroz irrigado em Tocantins, Brasil

Pesquisa Agropecuária Brasileira, 2010
The objective of this work was to evaluate the Magnaporthe oryzae pathotype diversity in new commercial irrigated rice fields in the Araguaia River Valley, state of Tocantins, Brazil. The causal agent of rice blast has heavily affected rice production in
Justino José Dias Neto, Gil Rodrigues dos Santos, Liamar Maria dos Anjos, Paulo Hideo Nakano Rangel, Marcio Elias Ferreira   +4 more
doaj   +1 more source

Speciation in Pyricularia inferred from multilocus phylogenetic analysis [PDF]

Mycological Research, 2007
Pyricularia isolates from various host plants were subjected to a multilocus phylogenetic analysis based on rDNA-ITS, actin, beta-tubulin, and calmodulin loci. A combined gene tree resolved seven groups with 100% BS support, suggesting that they are monophyletic groups supported concordantly by all four loci.
Hirata, Kenji, Kusaba, Motoaki, Chuma, Izumi, Osue, Jun, Nakayashiki, Hitoshi, Mayama, Shigeyuki, Tosa, Yukio   +6 more
openaire   +2 more sources

Potensi Bakteri Endofit sebagai Agens Hayati untuk Mengendalikan Penyakit Blas pada Tanaman Padi

Jurnal Ilmu Pertanian Indonesia, 2021
Bakteri endofit merupakan salah satu kelompok mikrob yang berpotensi untuk dikembangkan sebagai agensia pengendalian hayati penyakit pada tanaman padi.
Husda Marwan, Sosiawan Nusifera, Sri Mulyati   +2 more
doaj   +1 more source

Eficiência da disseminação aérea em Pyricularia grisea [PDF]

Summa Phytopathologica, 2007
Pyricularia grisea (teleomorfa Magnaporthe grisea) é um patógeno que infecta mais de 80 gramíneas. No Brasil ataca importantes culturas como arroz e trigo, causando a brusone. Mais recentemente foi reportada na triticale, cultura alternativa para os produtores de trigo no sul do estado de São Paulo. Um dos principais meios de disseminação da doença é a
Urashima, Alfredo Seiiti, Leite, Sabrina Ferreira, Galbieri, Rafael   +2 more
openaire   +3 more sources

The continuing significance of chiral agrochemicals

Pest Management Science, Volume 81, Issue 4, Page 1697-1716, April 2025.
In the time frame 2018–2023, around 43% of the 35 chiral agrochemicals introduced to the market (herbicides, fungicides, insecticides, acaricides, and nematicides) contain one or more stereogenic centers in the molecule, and almost 69% of them have been marketed as racemic mixtures of enantiomers or stereoisomers.
Peter Jeschke
wiley   +1 more source

lincRNA6679 promotes FnPR1B expression via phosphorylation‐activated FnWRKY14 to enhance strawberry resistance to Botrytis cinerea

Journal of Integrative Plant Biology, EarlyView.
In strawberry, Botrytis cinerea induces the expression of the long, intergenic non‐coding RNA lincRNA667，which upregulates the transcription factor gene FnWRKY14. FnWRKY14 then binds to the promoter of the pathogenesis‐related gene FnPR1B, enhancing strawberry resistance to B. cinerea.
Yuhan Guan, Zhuo Zhang, Zihui Zhang, Yan Wang, Wei Guo, Zhihong Zhang, He Li   +6 more
wiley   +1 more source

Arroz – “Quemado por Pyricularia”

, 2021
Las condiciones meteorológicas, en esta época de la campaña, comienzan a ser más conducentes para el desarrollo de enfermedades en el cultivo de arroz, especialmente para el desarrollo del “Quemado del Arroz” causado por Pyricularia oryzae. Por ello, se recomienda reforzar las visitas a los lotes a fin de determinar el estado sanitario de los mismos.
Pedraza, Maria Virginia, Asselborn, Miriam   +1 more
openaire   +1 more source

A new method to measure EC50 reveals cultivar‐specific fungicide resistance and very high diversity within experimental field populations of Zymoseptoria tritici

Pest Management Science, Volume 82, Issue 4, Page 3613-3624, April 2026.
We isolated Zymoseptoria tritici strains from a diverse wheat field and quantified fungicide resistance using a novel plate assay. We found high diversity in fungicide sensitivity and host–fungicide–pathogen interactions. Abstract BACKGROUND Zymoseptoria tritici causes Septoria tritici blotch (STB), the most damaging wheat disease in Europe. In Europe,
Firas Talas, Jessica Stapley, Bruce A McDonald   +2 more
wiley   +1 more source