Plant Desease Resistance by Plant Peroxidase.

Stability properties of an ancient plant peroxidase.

Plant (Class III) peroxidases have numerous applications throughout biotechnology but their thermal and oxidative stabilities may limit their usefulness. Horseradish peroxidase isoenzyme C (HRPC) has good catalytic turnover and is moderately resistant to heat and to excess (oxidizing) concentrations of hydrogen peroxide. In contrast, HRP isoenzyme A2 (HRP A2) has better oxidative but poorer the...

Elicitin-Mediated Plant Resistance

Plant Disease Resistance Genes.

In "gene-for-gene" interactions between plants and their pathogens, incompatibility (no disease) requires a dominant or semidominant resistance (R) gene in the plant, and a corresponding avirulence (Avr) gene in the pathogen. Many plant/pathogen interactions are of this type. R genes are presumed to (a) enable plants to detect Avr-gene-specified pathogen molecules, (b) initiate signal transduct...

Impacts of Plant Size, Density, Herbivory, and Desease on Native Platte Thistle (Cirsium Canescens)

Based on prior field observations, we hypothesized that individual and interacting effects of plant size, density, insect herbivory, and especially fungal disease, influenced seedling and juvenile plant growth in native Platte thistle populations (Cirsium canescens Nutt.). We worked at Arapaho Prairie in the Nebraska Sandhills (May August 2007), monitoring plant growth, insect damage, and funga...

Genetics of plant-pathogen interactions specifying plant disease resistance.

Understanding the mechanistic basis of why a certain pathogen causes disease in one host plant and not in another has long intrigued and motivated plant pathologists. Plants, in nature, are generally resistant to most pathogens. The ability of a pathogen to cause disease in a host plant is usually the exception, not the rule. This is because plants have an innate ability to recognize potential ...