نتایج جستجو برای: powdery mildew

تعداد نتایج: 4737  

Journal: :Science 2007
Qian-Hua Shen Yusuke Saijo Stefan Mauch Christoph Biskup Stéphane Bieri Beat Keller Hikaru Seki Bekir Ulker Imre E Somssich Paul Schulze-Lefert

Plant immune responses are triggered by pattern recognition receptors that detect conserved pathogen-associated molecular patterns (PAMPs) or by resistance (R) proteins recognizing isolate-specific pathogen effectors. We show that in barley, intracellular mildew A (MLA) R proteins function in the nucleus to confer resistance against the powdery mildew fungus. Recognition of the fungal avirulenc...

Journal: :Australasian Plant Disease Notes 2021

Powdery mildew on flowers of Cassia fistula and folioles Tamarindus indica, caused by Erysiphe quercicola, is reported for the first time in Brazil. The identity pathogen was confirmed morphological characteristics molecular sequence analyses ITS 28S rDNA regions. This report E. quercicola causing powdery C. T. indica

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Xunli Lu Barbara Kracher Isabel M L Saur Saskia Bauer Simon R Ellwood Roger Wise Takashi Yaeno Takaki Maekawa Paul Schulze-Lefert

Disease-resistance genes encoding intracellular nucleotide-binding domain and leucine-rich repeat proteins (NLRs) are key components of the plant innate immune system and typically detect the presence of isolate-specific avirulence (AVR) effectors from pathogens. NLR genes define the fastest-evolving gene family of flowering plants and are often arranged in gene clusters containing multiple par...

2013
D. Cox

Apple Scab and Powdery Mildew in NY during the 2012 season The 2012 growing season came unexpectedly in early March during a period of warm weather following a warmer than usual winter. The early season was characterized by number borderline apple scab infection periods until the beginning of April a time when most model predictors were in agreement. The spring freeze hit during bloom which was...

Journal: :Genetics and molecular research : GMR 2013
S J Zhou Z Jing J L Shi

Mildew resistance locus o (MLO) is a plant-specific seven-transmembrane (TM) gene family. Several studies have revealed that certain members of the MLO gene family mediate powdery mildew susceptibility in three plant species, namely, Arabidopsis, barley, and tomato. The sequenced cucumber genome provides an opportunity to conduct a comprehensive overview of the MLO gene family. Fourteen genes (...

2017
Coraline R. Praz Salim Bourras Fansong Zeng Javier Sánchez‐Martín Fabrizio Menardo Minfeng Xue Lijun Yang Stefan Roffler Rainer Böni Gerard Herren Kaitlin E. McNally Roi Ben‐David Francis Parlange Simone Oberhaensli Simon Flückiger Luisa K. Schäfer Thomas Wicker Dazhao Yu Beat Keller

There is a large diversity of genetically defined resistance genes in bread wheat against the powdery mildew pathogen Blumeria graminis (B. g.) f. sp. tritici. Many confer race-specific resistance to this pathogen, but until now only the mildew avirulence gene AvrPm3a2/f2 that is recognized by Pm3a/f was known molecularly. We performed map-based cloning and genome-wide association studies to is...

Journal: :journal of agricultural science and technology 2010
t. anand a. chandrasekaran s. kuttalam t. raguchander r. samiyappan

the compatibility studies of pseudomonas fluorescens (pf1) with azoxystrobin at differ-ent concentrations viz., 100, 150, 200, 250 and 300 ppm revealed that it was compatible with all the concentrations of azoxystrobin tested and the growth of the bacterium was unaffected even at the maximum concentration of 300 ppm. the field experiment revealed a foliar application of pf1 (2.5 kg ha-1) and az...

2016
Andrea Kunova Cristina Pizzatti Maria Bonaldi Paolo Cortesi

BACKGROUND Metrafenone has been used in Europe in integrated pest management programmes since 2006 to control powdery mildews, including Erysiphe necator. Its exact mode of action is not known, but it is unique among fungicide classes used in powdery mildew management. Recently, resistance to metrafenone was reported in Blumeria graminis f. sp. tritici. In this study we investigated metrafenone...

2017
Yong-Ju Xu Yang Lei Ran Li Ling-Li Zhang Zhi-Xue Zhao Jing-Hao Zhao Jing Fan Yan Li Hui Yang Jing Shang Shunyuan Xiao Wen-Ming Wang

Ectopic expression of the Arabidopsis RESISTANCE TO POWDERY MILDEW8.1 (RPW8.1) boosts pattern-triggered immunity leading to enhanced resistance to different pathogens in Arabidopsis and rice. However, the underlying regulatory mechanism remains largely elusive. Here, we report that XAP5 CIRCADIAN TIMEKEEPER (XCT, At2g21150) positively regulates RPW8.1-mediated cell death and disease resistance....

2015
Huayan Yin Yuval Ben-Abu Hongwei Wang Anfei Li Eviatar Nevo Lingrang Kong

BACKGROUND "Evolution Canyon" (ECI) at Lower Nahal Oren, Mount Carmel, Israel, is an optimal natural microscale model for unraveling evolution in action highlighting the basic evolutionary processes of adaptation and speciation. A major model organism in ECI is wild emmer, Triticum dicoccoides, the progenitor of cultivated wheat, which displays dramatic interslope adaptive and speciational dive...

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