Molecular Plant-Microbe Interactions (2009) 22, 1504-1513

Marco Catoni, Laura Miozzi, Valentina Fiorilli, Luisa Lanfranco and Gian Paolo Accotto (2009)
Comparative analysis of expression profiles in shoots and roots of tomato systemically infected by Tomato spotted wilt virus reveals organ-specific transcriptional responses
Molecular Plant-Microbe Interactions 22 (12), 1504-1513
Abstract: Tomato (Solanum lycopersicon), a model species for the family Solanaceae, is severely affected by Tomato spotted wilt virus (TSWV) worldwide. To elucidate the systemic transcriptional response of plants to TSWV infection, microarray experiments were performed on tomato. Parallel analysis of both shoots and roots revealed organ-specific responses, although the virus was present in similar concentration. In the shoots, genes related to defense and to signal transduction were induced, while there was general repression of genes related to primary and secondary metabolism as well as to amino acid metabolism. In roots, expression of genes involved in primary metabolism and signal transduction appear unaffected by TSWV infection, while those related to the response to biotic stimuli were induced and those associated to the response to abiotic stress were generally repressed or unaltered. Genes related to amino acid metabolism were unaffected, except for those involved in synthesis of secondary compounds, where induction was evident. Differential expression of genes involved in metabolism and response to ethylene and abscisic acid was observed in the two organs. Our results provide new insight into the biology of the economically important interaction between tomato and TSWV.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Gian Paolo Accotto, Marco Catoni

Research topic(s) for pests/diseases/weeds:
molecular biology - genes

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Orthotospovirus tomatomaculae	Tomato (Solanum lycopersicum)