نتایج جستجو برای: rice blast

تعداد نتایج: 91682  

2018
Raquel Salvador-Guirao Yue-ie Hsing Blanca San Segundo

MicroRNAs (miRNAs) are small RNAs acting as regulators of gene expression at the post-transcriptional level. In plants, most miRNAs are generated from independent transcriptional units, and only a few polycistronic miRNAs have been described. miR166 is a conserved miRNA in plants targeting the HD-ZIP III transcription factor genes. Here, we show that a polycistronic miRNA comprising two miR166 ...

عباس شریفی تهرانی, , اقبال طاهری, , عبدالحسین جمالی زواره, ,

Systemic properties of pyroquilon, an anti-blast systemic chemical, used in controlling rice blast disease caused by Pyricularica grisea, was investigated through in vivo tests. Rice plants were treated with pyroquilon as granules in soil. Leaf and stem tissues were collected at different times after treatment and pyroquilon was extracted from tissues and detected by gas chromatography. Treated...

Journal: :journal of crop protection 2013
shideh mojerlou sedigheh mousanejad naser safaie

rice blast, caused by pyricularia grisea, is one of the most important diseases of this crop in iran and all over the world. to evaluate the relationship between spore population (sp) and meteorological factors, sp was measured daily using spore trap during growing seasons of 2006-2008 in rasht and lahijan regions (guilan province, iran). weather data including precipitation, daily maximum and ...

ژورنال: علوم آب و خاک 2004
عباس شریفی تهرانی, , اقبال طاهری, , عبدالحسین جمالی زواره, ,

Systemic properties of pyroquilon, an anti-blast systemic chemical, used in controlling rice blast disease caused by Pyricularica grisea, was investigated through in vivo tests. Rice plants were treated with pyroquilon as granules in soil. Leaf and stem tissues were collected at different times after treatment and pyroquilon was extracted from tissues and detected by gas chromatography. Treated...

2016
Takeshi Nishimura Susumu Mochizuki Naoko Ishii-Minami Yukiko Fujisawa Yoshihiro Kawahara Yuri Yoshida Kazunori Okada Sugihiro Ando Hideo Matsumura Ryohei Terauchi Eiichi Minami Yoko Nishizawa

Magnaporthe oryzae, the fungus causing rice blast disease, should contend with host innate immunity to develop invasive hyphae (IH) within living host cells. However, molecular strategies to establish the biotrophic interactions are largely unknown. Here, we report the biological function of a M. oryzae-specific gene, Required-for-Focal-BIC-Formation 1 (RBF1). RBF1 expression was induced in app...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Sihai Yang Jing Li Xiaohui Zhang Qijun Zhang Ju Huang Jian-Qun Chen Daniel L Hartl Dacheng Tian

We show that the genomes of maize, sorghum, and brachypodium contain genes that, when transformed into rice, confer resistance to rice blast disease. The genes are resistance genes (R genes) that encode proteins with nucleotide-binding site (NBS) and leucine-rich repeat (LRR) domains (NBS-LRR proteins). By using criteria associated with rapid molecular evolution, we identified three rapidly evo...

2015
Yun-Peng Wang Zheng-Yi Wei Yu-Ying Zhang Chun-Jing Lin Xiao-Fang Zhong Yue-Lin Wang Jing-Yong Ma Jian Ma Shao-Chen Xing

Rice blast is a major destructive fungal disease that poses a serious threat to rice production and the improvement of blast resistance is critical to rice breeding. The antimicrobial peptide MSI-99 has been suggested as an antimicrobial peptide conferring resistance to bacterial and fungal diseases. Here, a vector harboring the MSI-99 gene was constructed and introduced into the tobacco chloro...

2012
Atul Singh Vikas K. Singh S. P. Singh R. T. P. Pandian Ranjith K. Ellur Devinder Singh Prolay K. Bhowmick S. Gopala Krishnan M. Nagarajan K. K. Vinod U. D. Singh K. V. Prabhu T. R. Sharma T. Mohapatra A. K. Singh

BACKGROUND AND AIMS Basmati rice grown in the Indian subcontinent is highly valued for its unique culinary qualities. Production is, however, often constrained by diseases such as bacterial blight (BB), blast and sheath blight (ShB). The present study developed Basmati rice with inbuilt resistance to BB, blast and ShB using molecular marker-assisted selection. METHODOLOGY The rice cultivar 'I...

2001
Takayuki Motoyama Kaori Kadokura Makoto Fujimura Isamu Yamaguchi

Intracellular osmotic pressure plays important roles in the growth and pathogenicity of phytopathogenic filamentous fungi. However, the regulatory mechanism of turgor generation in pathogenesis or adaptation to osmolarity changes is poorly understood. We are analyzing the functions of histidine kinases in these processes. Knockout of a histidine kinase gene of the rice blast fungus caused sugar...

Journal: :Science 2006
Claire Veneault-Fourrey Madhumita Barooah Martin Egan Gavin Wakley Nicholas J Talbot

Rice blast is caused by the fungus Magnaporthe grisea, which elaborates specialized infection cells called appressoria to penetrate the tough outer cuticle of the rice plant Oryza sativa. We found that the formation of an appressorium required, sequentially, the completion of mitosis, nuclear migration, and death of the conidium (fungal spore) from which the infection originated. Genetic interv...

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