Publications

transcriptome changes in arabidopsis thaliana infected with pseudomonas syringae during drought recovery.	field-grown plants experience cycles of drought stress and recovery due to variation in soil moisture status. physiological, biochemical and transcriptome responses instigated by recovery are expected to be different from drought stress and non-stressed state. such responses can further aid or antagonize the plant's interaction with the pathogen. however, at molecular level, not much is known about plant-pathogen interaction during drought recovery. in the present study, we performed a microarra ...	2017	28831155
wrky70 and its homolog wrky54 negatively modulate the cell wall-associated defenses to necrotrophic pathogens in arabidopsis.	previous studies have identified the arabidopsis thaliana transcription factor wrky70 as a node of convergence for salicylic acid (sa) and jasmonic acid (ja)-mediated defense signal pathways and, together with its closest homolog wrky54, as a negative regulator of sa biosynthesis. here, we demonstrate that wrky70 together with wrky54 negatively affect the response of arabidopsis to the necrotrophic pathogens pectobacterium carotovorum and botrytis cinerea, but not to the hemibiotroph pseudomonas ...	2017	28837631
the powdery mildew-resistant arabidopsis mlo2 mlo6 mlo12 triple mutant displays altered infection phenotypes with diverse types of phytopathogens.	arabidopsis thaliana mlo2 mlo6 mlo12 triple mutant plants exhibit complete immunity against infection by otherwise virulent obligate biotrophic powdery mildew fungi such as golovinomyces orontii. while this phenotype is well documented, the interaction profile of the triple mutant with other microbes is underexplored and incomplete. here, we thoroughly assessed and quantified the infection phenotypes of two independent powdery mildew-resistant triple mutant lines with a range of microbes. these ...	2017	28839137
different arabidopsis thaliana photosynthetic and defense responses to hemibiotrophic pathogen induced by local or distal inoculation of burkholderia phytofirmans.	pathogen infection of plant results in modification of photosynthesis and defense mechanisms. beneficial microorganisms are known to improve plant tolerance to stresses. burkholderia phytofirmans psjn (bp), a beneficial endophytic bacterium, promotes growth of a wide range of plants and induces plant resistance against abiotic and biotic stresses such as coldness and infection by a necrotrophic pathogen. however, mechanisms underlying its role in plant tolerance towards (hemi)biotrophic invaders ...	2017	28840464
the ferric uptake regulator fur is conditionally essential in pseudomonas aeruginosa.	in pseudomonas aeruginosa the ferric uptake regulator protein (fur) controls both metabolism and virulence in response to iron availability. differently from other bacteria, attempts to obtain fur deletion mutants in p. aeruginosa failed, leading to the assumption that fur is an essential protein in this bacterium. by investigating a p. aeruginosa fur conditional mutant, we demonstrate that fur is not essential for p. aeruginosa growth in liquid media, biofilm formation, and pathogenicity in an ...	2017	28847923
sde5, a putative rna export protein, participates in plant innate immunity through a flagellin-dependent signaling pathway in arabidopsis.	in eukaryotes, rna silencing, mediated by small interfering rnas, is an evolutionarily widespread and versatile silencing mechanism that plays an important role in various biological processes. increasing evidences suggest that various components of rna silencing pathway are involved in plant defense machinery against microbial pathogens in arabidopsis thaliana. here, we show genetic and molecular evidence that arabidopsis sde5 is required to generate an effective resistance against the biotroph ...	2017	28851870
structure-function analysis of the fusarium oxysporum avr2 effector allows uncoupling of its immune-suppressing activity from recognition.	plant pathogens employ effector proteins to manipulate their hosts. fusarium oxysporum f. sp. lycopersici (fol), the causal agent of tomato wilt disease, produces effector protein avr2. besides being a virulence factor, avr2 triggers immunity in i-2 carrying tomato (solanum lycopersicum). fol strains that evade i-2 recognition carry point mutations in avr2 (e.g. avr2(r45h) ), but retain full virulence. here we investigate the virulence function of avr2 and determine its crystal structure. transg ...	2017	28857169