X. Xu

Publications15
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Citations327
Highly Influential Citations18
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An Agrobacterium catalase is a virulence factor involved in tumorigenesis
  • X. Xu, S. Pan
  • Biology
    Molecular microbiology
  • 1 January 2000
TLDR
It is reported that inactivation of one of A. tumefaciens catalases by a transposon insertion highly attenuated the bacterial ability to cause tumours on plants and to tolerate H2O2 toxicity, but not the bacterial viability in the absence of exogenous H2 O2.
Lipopolysaccharide dependence of cyanophage sensitivity and aerobic nitrogen fixation in Anabaena sp. strain PCC 7120
TLDR
The results suggest that modified LPS may prevent cyanophage infection of Anabaena sp.
Feedback regulation of an Agrobacterium catalase gene katA involved in Agrobacterium–plant interaction
TLDR
Results suggest that the endogenous H2O2 generated during A. tumefaciens cell growth could serve as the intracellular and intercellular inducer for the katA gene expression and that the acidic pH could pose an oxidative stress on the bacteria.
Differential targeting of two glucose transporters from Leishmania enriettii is mediated by an NH2-terminal domain
TLDR
Pro-1 glucose transporter of L. enriettii exists as two isoforms, iso-1 and iso-2, which are both expressed primarily in the promastigote stage of the life cycle, but each isoform is differentially sorted, and the structural information for targeting each transporter isoform to its correct membrane address resides within the NH2-terminal hydrophilic domain.
Induction of the viable but nonculturable state in Clavibacter michiganensis subsp. michiganensis and in planta resuscitation of the cells on tomato seedlings
TLDR
Because copper-based chemicals and low pH conditions are used for disease management, induction of the VBNC state and subsequent resuscitation of Cmm cells on tomato seedlings may limit pathogen detection by culture-based assays yet present a risk for disease development in the field.
Characterization of the pathogenicity of strains of Pseudomonas syringae towards cherry and plum
TLDR
An in‐depth study of pathogenic interactions, identification of host resistance and optimization of laboratory assays provides a framework for future genetic dissection of host–pathogen interactions in the canker disease.
Designing and transgenic expression of melanin gene in tobacco trichome and cotton fiber.
TLDR
Results indicate that the synthesized DOFR438 and DTYRA genes can work well in tobacco and cotton and may provide a potential method for modifying the colour of cotton fiber.
Isolation and chemical analysis of a lipopolysaccharide from the outer membrane of the oral anaerobic spirochete Treponema pectinovorum.
TLDR
Electrophoretic analysis indicated that the lipopolysaccharide was present as two major species and the purified molecule was resistant to the action of proteinases and consisted of both sugars and lipids.
Epistatic influence in tomato Ve1-mediated resistance.
TLDR
The results of this study confirm the functional role of Ve1 protein in resistance to the vascular fungal pathogen V. dahliae race 1 (Vd1), but suggest that a yet undefined factor exerts an epistatic influence on the Ve1 gene.
Odd Mating-type Substances May Work as Precursor Molecules of Even Mating-type Substances in Paramecium caudatum
TLDR
The O mating-type substances exist in the cytoplasm of the E mating- type cells, supporting strongly the hypothesis that O mating -type substances are precursor molecules of theE mating-types substances.
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