Cytological and other aspects of pathogenesis-related gene expression in tomato plants grown on a suppressive compost.

ABSTRACT:

Background and aims

Recent studies have shown that certain composts may trigger indirect defence mechanisms by sensitizing the plant to create an increased state of resistance, similar to systemic acquired resistance. In this study, the capacity of a disease-suppressive compost to alter the expression pattern of certain pathogenesis-related (PR) genes in the root system of tomato plants (Solanum lycopersicum) provided the opportunity to study their cellular expression pattern and to investigate putative roles of these genes in the mechanisms of plant defence.

Methods

Employing the reverse transcription-polymerase chain reaction (RT-PCR) and in situ RNA:RNA hybridization techniques, the accumulation and distribution of the transcripts of the differentially expressed PR genes

SUBMITTER: Kavroulakis N 

PROVIDER: S-EPMC2803568 | biostudies-literature | 2006 Sep

REPOSITORIES: biostudies-literature