Plant immune homeostasis is achieved through a balanced immune activation and suppression, enabling effective defense while averting autoimmunity. In Arabidopsis, disrupting a mitogen-activated protein (MAP) kinase cascade triggers nucleotide-binding leucine-rich-repeat (NLR) SUPPRESSOR OF mkk1/2 2 (SUMM2)-mediated autoimmunity. Through an RNAi screen, we identify PUB5, a putative plant U-box E3 ligase, as a critical regulator of SUMM2-mediated autoimmunity.
View Article and Find Full Text PDFRice false smut (RFS), caused by , is an important fungal disease in panicles of rice. is a heterothallic ascomycete controlled by two opposite idiomorphs, MAT1-1 and MAT1-2. Previous study showed that sexual reproduction of plays an important role in the epidemic of RFS.
View Article and Find Full Text PDFPyricularia oryzae is a multi-host pathogen causing cereal disease, including the devastating rice blast. Panicle blast is a serious stage, leading to severe yield loss. Thirty-one isolates (average 4.
View Article and Find Full Text PDFis the prevalent causative pathogen of rice false smut, a destructive rice disease. Mating-type genes play a vital role in the evolution of mating systems in fungi. Some fungi have lost , one of the mating-type genes, during evolution, whereas others still retain .
View Article and Find Full Text PDFRice false smut caused by Villosiclava virens is one of the destructive diseases on panicles of rice. Sexual development of V. virens, controlled by mating-type locus, plays an important role in the prevalence of rice false smut and genetic diversity of the pathogen.
View Article and Find Full Text PDFIn filamentous fungi, the conserved transcription factors play important roles in multiple cellular and developmental processes. The GATA proteins, a family of GATA-binding zinc finger transcription factors, play diverse functions in fungi. is an economically important pathogen-causing rice false smut worldwide.
View Article and Find Full Text PDFRice false smut fungus (teleomorph: ; anamorph: ) can generate chlamydospores and survive winter under field conditions. The chlamydospore is considered as an important infection source of the disease. However, little is known about the regulatory mechanism of the chlamydospore production.
View Article and Find Full Text PDFMicrosc Res Tech
April 2018
In recent years, false smut disease of rice has been one of the most important diseases of cultivated rice in China. Ustilaginoidea virens is an ascomycete fungal pathogen that causes false smut in rice. There is always controversy about whether the pathogen can infect the rice root and cause the occurrence of false smut, mainly due to lack direct cytological evidence.
View Article and Find Full Text PDFRice false smut, caused by the fungal pathogen Villosiclava virens, is one of the most important rice diseases in the world. Previous studies reported that the pathogen has less number of cell wall-degraded genes and attacks dominantly rice stamen filaments and extends intercellularly. To reveal why the fungus infects plant stamen filaments, inoculation test on barley was carried out with the similar protocol to rice.
View Article and Find Full Text PDFIdentification of TaS3 as a potential susceptibility gene encoding a protein homologous to ULP1 protease in wheat, which may regulate SUMO function facilitating powdery mildew attack. Some plant genes that are required for susceptibilities to certain pathogens are known as susceptibility genes or susceptibility factors, whose loss-of-function mutations can confer the plants resistances. To identify potential susceptibility genes to powdery mildew in wheat, differentially expressed genes in compatible and incompatible interactions between wheat and powdery mildew were examined by the cDNA chip assay.
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