H2O2 plays different roles in determining penetration failure in three diverse plant-fungal interactions.

@article{Mellersh2002H2O2PD,
  title={H2O2 plays different roles in determining penetration failure in three diverse plant-fungal interactions.},
  author={Denny G Mellersh and Inge Viia Foulds and Verna J. Higgins and Mich{\`e}le C. Heath},
  journal={The Plant journal : for cell and molecular biology},
  year={2002},
  volume={29 3},
  pages={
          257-68
        }
}
Fungal plant pathogens that attempt to penetrate and feed on living cells frequently trigger a localized plant defence response that results in fungal penetration failure. In the current study we demonstrate that breakdown products of the cell wall released by the localized application of hemicellulase elicit localized responses including, sequentially, extracellular H2O2 generation; accumulation of phenolic compounds; and cross-linking of proteins in the cell wall. In a detailed time-course… 
Cellular interactions between biotrophic fungal pathogens and host or nonhost plants
TLDR
Study of nonhost interactions with biotrophs suggest that not only is penetration failure in nonhost plants determined while the fungus is growing through the epidermal cell wall, but that it is at this stage of infection in host species that cellular responses are initiated that determine whether the plant cell will become susceptible to infection or exhibit the hypersensitive response.
Dynamics and localization of H2O2 production in elicited plant cells
TLDR
Electron energy loss spectroscopy investigations distinguished between the cerium-containing precipitates and other electrondense particles, thereby proving that H2O2 generation occurs locally.
Reactive Oxygen Species and Plant Disease Resistance
TLDR
It seems that when plants encounter pathogens they need to defend themselves simultaneously against biotic and abiotic stresses by turning on two different types of—partially overlapping—signaling pathways that may function in parallel.
Modulation of reactive oxygen species activities and H2O2 accumulation during compatible and incompatible tomato-root-knot nematode interactions.
TLDR
The data provide evidence, for the first time, for ROS-generated signals and their spatiotemporal expression in the host and nonhost interaction of tomato with nematodes.
Benzothiadiazole effect in the compatible tomato-Meloidogyne incognita interaction: changes in giant cell development and priming of two root anionic peroxidases
TLDR
Results show that BTH applied to tomato plants makes them more resistant to infection by nematodes, which become less effective in overcoming root defense pathway.
Reactive oxygen intermediates in plant-microbe interactions: Who is who in powdery mildew resistance?
TLDR
The well-studied interaction of cereals with fungi from the genus Blumeria is an excellent model system in which signal transduction and defence reactions can be further elucidated in planta.
Cell wall-associated mechanisms of disease resistance and susceptibility.
TLDR
This review summarizes the current view of how plants monitor and model their cell periphery during interaction with microbial invaders and highlights that both early plant defense to fungal penetration and host reprogramming for susceptibility can function at the host cell periphery.
Pythium infection activates conserved plant defense responses in mosses
TLDR
Results show for the first time JA and OPDA accumulation in a moss and suggest that this defense pathway is functional and has been maintained during the evolution of plants.
Lignin‐based barrier restricts pathogens to the infection site and confers resistance in plants
TLDR
It is suggested that the lignin‐deposited structure functions as a physical barrier similar to the Casparian strip, trapping pathogens and thereby terminating their growth.
...
...

References

SHOWING 1-10 OF 38 REFERENCES
Subcellular localization of H2O2 in plants. H2O2 accumulation in papillae and hypersensitive response during the barley—powdery mildew interaction
TLDR
3,3-diaminobenzidine polymerizes instantly and locally as soon as it comes into contact with H2O2 in the presence of peroxidase, and it was found that, by allowing the leaf to take up this substrate, in-vivo and in-situ detection of H2 O2 can be made at subcellular levels.
Function of Oxidative Cross-Linking of Cell Wall Structural Proteins in Plant Disease Resistance.
TLDR
The data strongly suggest that rapid protein insolubilization leads to a strengthened cell wall, and this mechanism functions as a rapid defense in the initial stages of the hypersensitive response prior to deployment of transcription-dependent defenses.
An Agrobacterium catalase is a virulence factor involved in tumorigenesis
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.
Plasma Membrane–Cell Wall Adhesion Is Required for Expression of Plant Defense Responses during Fungal Penetration
TLDR
It is suggested that rust fungi may induce a decrease in plasma membrane–cell wall adhesion as a means of disrupting the expression of nonspecific defense responses during penetration of host cells.
The effect of hydrogen peroxide on the viability of tomato cells and of the fungal pathogen Cladosporium fulvum
TLDR
The results suggest that the amount of H2O2 accumulating during an elicitor-induced response in leaves may be sufficient to affect fungal colonization but not to affect viability of host cells unless the Fe2+status in the apoplast is in some way altered by the elicitor to facilitate OH.
Plant nuclear migrations as indicators of critical interactions between resistant or susceptible cowpea epidermal cells and invasion hyphae of the cowpea rust fungus
TLDR
In resistant or susceptible host cvs, the plant nucleus migrated to the penetration site before the fungus had fully penetrated the plant wall and, at sites of unsuccessful infection, remained during the formation of a callose-containing papilla.
Local mechanical stimulation induces components of the pathogen defense response in parsley.
TLDR
It is suggested that mechanical stimulation by the invading fungus is responsible for the observed intracellular rearrangements and may trigger some of the previously demonstrated changes in the activity of elicitor-responsive genes, whereas chemical stimulation is required for additional biochemical processes.
Evidence against a direct antimicrobial role of H2O2 in the infection of plants by Erwinia chrysanthemi.
TLDR
The results suggest that the host-produced H2O2 has no direct antimicrobial effect on the interaction of E. chrysanthemi with the two plant species.
...
...