نتایج جستجو برای: p syringae pvsyringae

تعداد نتایج: 1272216  

Journal: :Egyptian Journal of Biological Pest Control 2021

Abstract Background Bacterial canker and subsequent gummosis are caused by multiple pathogens lead to significant yield productivity losses in sweet cherry cultivation Turkey. This study identified that Pseudomonas syringae pathovars were responsible for bacterial on orchards using classical molecular methods evaluated the biocontrol effects of bacteriophages against P. pv. syringae. Results Pa...

Journal: :International Journal of Biological Macromolecules 2021

Bacterial canker disease caused by Pseudomonas syringae pv. actinidiae (Psa) biovar 3 involved all global interest since 2008. We have found that in Psa3 genome, similarly to other P. syringae, there are three putative genes, lsc?, lsc? and lsc?, coding for levansucrases. These enzymes, breaking the sucrose moiety releasing glucose can synthetize fructose polymer levan, a hexopolysaccharide is ...

Journal: :Processes 2023

As a follow-up to previous studies, the effects of Thymus vulgaris essential oil on selected virulence factors (growth, sessile cell survival, swimming, swarming, and exopolysaccharide production) were evaluated in phytopathogenic Pseudomonas syringae strains isolated from soybean fields Argentina; reference savastanoi pv. glycinea B076 aeruginosa PAO1. P. are responsible for bacterial blight, ...

Journal: :Molecular plant-microbe interactions : MPMI 2009
Ming Guo Fang Tian Yashitola Wamboldt James R Alfano

The Pseudomonas syringae type III protein secretion system (T3SS) and the type III effectors it injects into plant cells are required for plant pathogenicity and the ability to elicit a hypersensitive response (HR). The HR is a programmed cell death that is associated with effector-triggered immunity (ETI). A primary function of P. syringae type III effectors appears to be the suppression of ET...

Journal: :Applied and environmental microbiology 2001
J J Kim G W Sundin

Based on nucleotide sequence homology with the Escherichia coli photolyase gene (phr), the phr sequence of Pseudomonas aeruginosa PAO1 was identified from the genome sequence, amplified by PCR, cloned, and shown to complement a known phr mutation following expression in Escherichia coli SY2. Stable, insertional phr mutants containing a tetracycline resistance gene cassette were constructed in P...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم کشاورزی و منابع طبیعی ساری - دانشکده علوم کشاورزی 1391

برخی از باکتری های بیماری زای قسمت های هوایی گیاهان، قابلیت عمل کردن به عنوان هسته یخ در دماهای 5/1 تا 9 درجه زیر صفر (5/1- تا 9-) را داشته و هر ساله خسارت های زیادی را در اثر یخ زدگی، به مزارع و باغات اکثر کشورهای دنیا وارد می سازند. تحقیق اخیر به منظور شناسایی ژن مسئول بیوسنتز پروتئین عامل یخ زدگی (ژن ice) در جدایه هایی از باکتری غالب در مرکبات و تعداد دیگری از میزبان ها در فصول خنک سال در ما...

2015
Tianhong Zhou Kai Chen Hai-Xin Zhang Xin Deng

Although Pseudomonas syringae uses the two-component system RhpRS to modulate the expression of type III secretion system (T3SS) genes and pathogenicity, the molecular mechanisms and the regulon of RhpRS have yet to be fully demonstrated. We have performed a genome-wide analysis of RhpR binding to DNA prepared from P. syringae pv. phaseolicola in order to identify candidate direct targets of Rh...

2009
David J Studholme Selena Gimenez Ibanez Daniel MacLean Jeffery L Dangl Jeff H Chang John P Rathjen

Background: Pseudomonas syringae is a widespread bacterial pathogen that causes disease on a broad range of economically important plant species. Pathogenicity of P. syringae strains is dependent on the type III secretion system, which secretes a suite of up to about thirty virulence 'effector' proteins into the host cytoplasm where they subvert the eukaryotic cell physiology and disrupt host d...

Journal: :Molecular plant-microbe interactions : MPMI 2006
Adriana O Ferreira Christopher R Myers Jeffrey S Gordon Gregory B Martin Monica Vencato Alan Collmer Misty D Wehling James R Alfano Gabriel Moreno-Hagelsieb Warren F Lamboy Genevieve DeClerck David J Schneider Samuel W Cartinhour

Pseudomonas syringae pv. tomato DC3000 is a model pathogen of tomato and Arabidopsis that uses a hypersensitive response and pathogenicity (Hrp) type III secretion system (T3SS) to deliver virulence effector proteins into host cells. Expression of the Hrp system and many effector genes is activated by the HrpL alternative sigma factor. Here, an open reading frame-specific whole-genome microarra...

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