نتایج جستجو برای: baba

تعداد نتایج: 1360  

Journal: :The Plant journal : for cell and molecular biology 2008
Victor Flors Jurriaan Ton Ronald van Doorn Gabor Jakab Pilar García-Agustín Brigitte Mauch-Mani

We have examined the role of the callose synthase PMR4 in basal resistance and beta-aminobutyric acid-induced resistance (BABA-IR) of Arabidopsis thaliana against the hemi-biotrophic pathogen Pseudomonas syringae and the necrotrophic pathogen Alternaria brassicicola. Compared to wild-type plants, the pmr4-1 mutant displayed enhanced basal resistance against P. syringae, which correlated with co...

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2014
Roland E. Schwarzenbacher Estrella Luna Jurriaan Ton

A significant proportion of global crop production is annually lost to pests and diseases (Savary et al., 2012). While pesticides help to reduce these losses, there is growing concern about pesticide resistance and their impacts on health and environment. Integrated Pest Management (IPM) aims to reduce pesticide usage through a combination of different strategies, including resistant crop culti...

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Journal: :The Plant journal : for cell and molecular biology 2011
Chia-Hong Tsai Prashant Singh Ching-Wei Chen Jerome Thomas Johann Weber Brigitte Mauch-Mani Laurent Zimmerli

The priming agent β-aminobutyric acid (BABA) is known to enhance Arabidopsis resistance to the bacterial pathogen Pseudomonas syringae pv. tomato (Pst) DC3000 by potentiating salicylic acid (SA) defence signalling, notably PR1 expression. The molecular mechanisms underlying this phenomenon remain unknown. A genome-wide microarray analysis of BABA priming during Pst DC3000 infection revealed dir...

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1989
Jean-Jacques Quisquater Myriam Quisquater Muriel Quisquater Michaël Quisquater Louis C. Guillou Marie Annick Guillou Gaïd Guillou Anna Guillou Gwenolé Guillou Soazig Guillou Thomas A. Berson

0 Know, oh my children, that very long ago, in the Eastern city of Baghdad, there lived an old man named Ali Baba. Every day Ali Baba would go to the bazaar to buy or sell things. This is a story which is partly about Ali Baba, and partly also about a cave, a strange cave whose secret and wonder exist to this day. But I get ahead of myself . . . One day in the Baghdad bazaar a thief grabbed a p...

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2014
Sandra Nell Lynn Kennemann Sandra Schwarz Christine Josenhans Sebastian Suerbaum

UNLABELLED Helicobacter pylori undergoes rapid microevolution during chronic infection, but very little is known about how this affects host interaction factors. The best-studied adhesin of H. pylori is BabA, which mediates binding to the blood group antigen Lewis b [Le(b)]. To study the dynamics of Le(b) adherence during human infection, we analyzed paired H. pylori isolates obtained sequentia...

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Journal: :Cell host & microbe 2016
Kristof Moonens Pär Gideonsson Suresh Subedi Jeanna Bugaytsova Ema Romaõ Melissa Mendez Jenny Nordén Mahsa Fallah Lena Rakhimova Anna Shevtsova Martina Lahmann Gaetano Castaldo Kristoffer Brännström Fanny Coppens Alvin W Lo Tor Ny Jay V Solnick Guy Vandenbussche Stefan Oscarson Lennart Hammarström Anna Arnqvist Douglas E Berg Serge Muyldermans Thomas Borén Han Remaut

The Helicobacter pylori adhesin BabA binds mucosal ABO/Le(b) blood group (bg) carbohydrates. BabA facilitates bacterial attachment to gastric surfaces, increasing strain virulence and forming a recognized risk factor for peptic ulcers and gastric cancer. High sequence variation causes BabA functional diversity, but the underlying structural-molecular determinants are unknown. We generated X-ray...

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2014
Estrella Luna Marieke van Hulten Yuhua Zhang Oliver Berkowitz Ana López Pierre Pétriacq Matthew A Sellwood Beining Chen Mike Burrell Allison van de Meene Corné M J Pieterse Victor Flors Jurriaan Ton

Specific chemicals can prime the plant immune system for augmented defense. β-aminobutyric acid (BABA) is a priming agent that provides broad-spectrum disease protection. However, BABA also suppresses plant growth when applied in high doses, which has hampered its application as a crop defense activator. Here we describe a mutant of Arabidopsis thaliana that is impaired in BABA-induced disease ...

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2017
Shamshul Ansari Evariste Tshibangu Kabamba Pradeep Krishna Shrestha Hafeza Aftab Thein Myint Lotay Tshering Rabi Prakash Sharma Nwe Ni Than Than Aye Phawinee Subsomwong Tomohisa Uchida Thawee Ratanachu-Ek Ratha-Korn Vilaichone Varocha Mahachai Takashi Matsumoto Junko Akada Yoshio Yamaoka

BACKGROUND Helicobacter pylori BabA is an important outer membrane protein that involves in the attachment to the gastric mucosa and enhances the virulence property of the bacterium. This study was aimed to characterize the bab genotypes, to evaluate its association with cagA, vacA and clinical diseases as well as degree of gastric inflammation. METHODS H. pylori isolates from four countries ...

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2015
Naim Hage Tina Howard Chris Phillips Claire Brassington Ross Overman Judit Debreczeni Paul Gellert Snow Stolnik G. Sebastiaan Winkler Franco H. Falcone

Helicobacter pylori is a leading cause of peptic ulceration and gastric cancer worldwide. To achieve colonization of the stomach, this Gram-negative bacterium adheres to Lewis(b) (Le(b)) antigens in the gastric mucosa using its outer membrane protein BabA. Structural information for BabA has been elusive, and thus, its molecular mechanism for recognizing Le(b) antigens remains unknown. We prese...

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2014
Estrella Luna Ana López Jaap Kooiman Jurriaan Ton

Priming of defense increases the responsiveness of the plant immune system and can provide broad-spectrum protection against disease. Recent evidence suggests that priming of defense can be inherited epigenetically to following generations. However, the mechanisms of long-lasting defense priming within one generation remains poorly understood. Here, we have investigated the mechanistic basis of...

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