Penicillium digitatum Suppresses Production of Hydrogen Peroxide in Host Tissue During Infection of Citrus Fruit

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Penicillium digitatum Suppresses Production of Hydrogen Peroxide in Host Tissue During Infection of Citrus Fruit.

ABSTRACT During the infection of citrus fruit by Penicillium digitatum there is little evidence of a host defense response. This suggests that P. digitatum has the ability to suppress host defenses. The current study demonstrates that P. digitatum suppresses a defense-related hydrogen peroxide (H(2)O(2)) burst in host tissue. In contrast, the nonhost pathogen, Penicillium expansum, triggers pro...

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Identification and functional analysis of Penicillium digitatum genes putatively involved in virulence towards citrus fruit.

The fungus Penicillium digitatum, the causal agent of green mould rot, is the most destructive post-harvest pathogen of citrus fruit in Mediterranean regions. In order to identify P. digitatum genes up-regulated during the infection of oranges that may constitute putative virulence factors, we followed a polymerase chain reaction (PCR)-based suppression subtractive hybridization and cDNA macroa...

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The Biochemical Basis of Pathogenicity and Host-Specificity of Penicillium Digitatum on Citrus

In this work we report that volatiles emitted from wounded citrus peel play a major role in host recognition by Penicillium digitatum. Volatiles of various citrus cultivars had a pronounced stimulatory effect on germination and germ tube elongation of green mold pathogen. When exposed to volatiles from grapefruit, the percentage of P. digitatum spores germinated on minimal media was 10-fold hig...

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ژورنال

عنوان ژورنال: Phytopathology®

سال: 2007

ISSN: 0031-949X,1943-7684

DOI: 10.1094/phyto-97-11-1491