Search

Your search keyword '"Jensen, Tina Tandrup"' showing total 22 results
Start Over Author "Jensen, Tina Tandrup"
22 results on '"Jensen, Tina Tandrup"'

2. Innate Immunity: Plant Recognition of Bacterial MAMPs

Author

Erbs, Gitte, Jensen, Tina Tandrup, Dow, J. M., Molinaro, A., Parrilli, M., Cooper, R. M., Newman, Mari-Anne, Erbs, Gitte, Jensen, Tina Tandrup, Dow, J. M., Molinaro, A., Parrilli, M., Cooper, R. M., and Newman, Mari-Anne

Published
2008

3. Bacterial polysaccharides suppress induced innate immunity by calcium chelation

Author

Aslam, Shazia N., Newman, Mari-Anne, Erbs, Gitte, Morrissey, Kate L., Chinchilla, Delphine, Boller, Thomas, Jensen, Tina Tandrup, Castro, Cristina De, Ierano, Teresa, Molinaro, Antonio, Jackson, Robert W., Knight, Marc R., Cooper, Richard M., Aslam, Shazia N., Newman, Mari-Anne, Erbs, Gitte, Morrissey, Kate L., Chinchilla, Delphine, Boller, Thomas, Jensen, Tina Tandrup, Castro, Cristina De, Ierano, Teresa, Molinaro, Antonio, Jackson, Robert W., Knight, Marc R., and Cooper, Richard M.

Abstract

Udgivelsesdato: JUL 22

Published
2008

4. An antagonist of lipid A action in mammals has complex effects on lipid A induction of defence responses in the model plant Arabidopsis thaliana

Author

Erbs, Gitte, Jensen, Tina Tandrup, Silipo, Alba, Grant, William, Dow, J. Maxwell, Molinaro, Antonio, Parrilli, Michelangelo, Newman, Mari-Anne, Erbs, Gitte, Jensen, Tina Tandrup, Silipo, Alba, Grant, William, Dow, J. Maxwell, Molinaro, Antonio, Parrilli, Michelangelo, and Newman, Mari-Anne

Abstract

Lipopolysaccharides, the ubiquitous part of the outer membrane of Gram-negative bacteria, and their derivatives are recognised by plants to trigger or potentiate particular defence responses such as induction of genes encoding pathogenesis-related proteins. The molecular mechanisms of LPS perception that underpin these effects in plants are, however, unknown. Here, lipid A from Halomonas magadiensis, which is an antagonist of lipid A action in human cells, was used to investigate lipid A action in plants. Our findings offer an insight into the different structural requirements for direct induction and potentiation of plant defences by lipid A.

Published
2008

5. The acylation and phosphorylation pattern of lipid A from Xanthomonas Campestris strongly influence its ability to trigger the innate immune response in arabidopsis

Author

Silipo, Alba, Sturiale, Luisa, Garozzo, Domenico, Erbs, Gitte, Jensen, Tina Tandrup, Lanzetta, Rosa, Dow, J. Maxwell, Parrilli, Michelangelo, Newman, Mari-Anne, Molinaro, Antonio, Silipo, Alba, Sturiale, Luisa, Garozzo, Domenico, Erbs, Gitte, Jensen, Tina Tandrup, Lanzetta, Rosa, Dow, J. Maxwell, Parrilli, Michelangelo, Newman, Mari-Anne, and Molinaro, Antonio

Abstract

Lipopolysaccharides (LPSs) are major components of the cell surface of Gram-negative bacteria. LPSs comprise a hydrophilic heteropolysaccharide (formed by the core oligosaccharide and the O-specific polysaccharide) that is covalently linked to the glycolipid moiety lipid A, which anchors these macromolecules to the external membrane. LPSs are one of a group of molecules called pathogen-associated molecular patterns (PAMPs) that are indispensable for bacterial growth and viability, and act to trigger innate defense responses in eukaryotes. We have previously shown that LPS from the plant pathogen Xanthomonas campestris pv. campestris (Xcc) can elicit defense responses in the model plant Arabidopsis thaliana. Here we have extended these studies by analysis of the structure and biological activity of LPS from a nonpathogenic Xcc mutant, strain 8530. We show that this Xcc strain is defective in core completion and introduces significant modification in the lipid A region, which involves the degree of acylation and nonstoichiometric substitution of the phosphate groups with phosphoethanolamine. Lipid A that was isolated from Xcc strain 8530 did not have the ability to induce the defense-related gene PR1 in Arabidopsis, or to prevent the hypersensitive response (HR) that is caused by avirulent bacteria as the lipid A from the wild-type could. This suggests that Xcc has the capacity to modify the structure of the lipid A to reduce its activity as a PAMP. We speculate that such effects might occur in wild-type bacteria that are exposed to stresses such as those that might be encountered during plant colonization and disease.

Published
2008

6. How bacteria use acidic overcoats to hinder detection by innate plant defences

Author

Aslam, Shazia N., Morrissey, Kate L., Jackson, Robert W., Knight, Marc R., Chinchilla, Delphine, Boller, Thomas, Erbs, Gitte, Jensen, Tina Tandrup, Newman, Mari-Anne, Cooper, Richard M., Aslam, Shazia N., Morrissey, Kate L., Jackson, Robert W., Knight, Marc R., Chinchilla, Delphine, Boller, Thomas, Erbs, Gitte, Jensen, Tina Tandrup, Newman, Mari-Anne, and Cooper, Richard M.

Published
2007

7. Bacterial extracellular polysaccharides are polyanionic, bind calcium in the apoplast and prevent detection of defence elicitors or MAMPs

Author

Cooper, Richard M., Morrissey, Kate L., Aslam, Shazia N., Jackson, Robert W., Knight, Marc R., Chincilla, Delphine, Boller, Thomas, Erbs, Gitte, Jensen, Tina Tandrup, Newman, Mari-Anne, Cooper, Richard M., Morrissey, Kate L., Aslam, Shazia N., Jackson, Robert W., Knight, Marc R., Chincilla, Delphine, Boller, Thomas, Erbs, Gitte, Jensen, Tina Tandrup, and Newman, Mari-Anne

Published
2007

10. Innate immunity:plant recognition of bacterial PAMPs

Author

Newman, Mari-Anne, Erbs, Gitte, Jensen, Tina Tandrup, Dow, J. Maxwell, Molinaro, Antonio, Parrilli, Michelangelo, Newman, Mari-Anne, Erbs, Gitte, Jensen, Tina Tandrup, Dow, J. Maxwell, Molinaro, Antonio, and Parrilli, Michelangelo

Published
2007

11. Bacterial extracellular polysaccharides promote pathogenicity by suppressing plant basal defences

Author

Azlam, Shazia N., Jackson, Robert W., Morrissey, Kate, Knight, Marc R., Chinchilla, Delphine, Boller, Thomas, Erbs, Gitte, Jensen, Tina Tandrup, Newman, Mari-Anne, Cooper, Richard M., Azlam, Shazia N., Jackson, Robert W., Morrissey, Kate, Knight, Marc R., Chinchilla, Delphine, Boller, Thomas, Erbs, Gitte, Jensen, Tina Tandrup, Newman, Mari-Anne, and Cooper, Richard M.

Published
2007

15. Elicitation of plant innate immunity by lipo-oligosaccharide of Xanthomonas campestris

Author

Sánchez, Federico, Quinto, Carmen, López-Lara, Isabel M., Geiger, Otto, Newman, Mari-Anne, Erbs, Gitte, Jensen, Tina Tandrup, Dow, J. Maxwell, Molinaro, Antonio, Parrilli, Michelangelo, Sánchez, Federico, Quinto, Carmen, López-Lara, Isabel M., Geiger, Otto, Newman, Mari-Anne, Erbs, Gitte, Jensen, Tina Tandrup, Dow, J. Maxwell, Molinaro, Antonio, and Parrilli, Michelangelo

Published
2006

18. Innate immunity:plant recognition of bacterial PAMPs

Author

Munk, Lisa, Collinge, David B., Jensen, Dan Funck, Newman, Mari-Anne, Jensen, Tina Tandrup, Erbs, Gitte, Munk, Lisa, Collinge, David B., Jensen, Dan Funck, Newman, Mari-Anne, Jensen, Tina Tandrup, and Erbs, Gitte

Published
2006

20. Bacterial Polysaccharides Suppress Induced Innate Immunity by Calcium Chelation

Author

Aslam, Shazia N., primary, Newman, Mari-Anne, additional, Erbs, Gitte, additional, Morrissey, Kate L., additional, Chinchilla, Delphine, additional, Boller, Thomas, additional, Jensen, Tina Tandrup, additional, De Castro, Cristina, additional, Ierano, Teresa, additional, Molinaro, Antonio, additional, Jackson, Robert W., additional, Knight, Marc R., additional, and Cooper, Richard M., additional

Published
2008
Full Text
View/download PDF

21. The Acylation and Phosphorylation Pattern of Lipid A from Xanthomonas Campestris Strongly Influence its Ability to Trigger the Innate Immune Response in Arabidopsis

Author

Silipo, Alba, primary, Sturiale, Luisa, additional, Garozzo, Domenico, additional, Erbs, Gitte, additional, Jensen, Tina Tandrup, additional, Lanzetta, Rosa, additional, Dow, J. Maxwell, additional, Parrilli, Michelangelo, additional, Newman, Mari‐Anne, additional, and Molinaro, Antonio, additional

Published
2008
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results