Catalog of Micro-Tom tomato responses to common fungal, bacterial, and viral pathogens

Hideki Takahashi, Ayano Shimizu, Tsutomu Arie, Syofi Rosmalawati, Sumire Fukushima, Mari Kikuchi, Yasufumi Hikichi, Ayami Kanda, Akiko Takahashi, Akinori Kiba, Kohei Ohnishi, Yuki Ichinose, Fumiko Taguchi, Chihiro Yasuda, Motoichiro Kodama, Mayumi Egusa, Chikara Masuta, Hiroyuki Sawada, Daisuke Shibata, Koichi HoriYuichiro Watanabe

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)


Lycopersicon esculentum cultivar Micro-Tom is a miniature tomato with many advantages for studies of the molecular biology and physiology of plants. To evaluate the suitability of Micro-Tom as a host plant for the study of pathogenesis, Micro-Tom plants were inoculated with 16 well-known fungal, bacterial, and viral pathogens of tomato. Athelia rolfsii, Botryotinia fuckeliana, Oidium sp., Phytophthora infestans, and Sclerotinia sclerotiorum caused typical symptoms and sporulated abundantly on Micro-Tom. Micro-Tom was resistant to Alternaria alternata, Corynespora cassiicola, and Fusarium oxysporum. When Micro-Tom was inoculated with 17 isolates of Ralstonia solanacearum, many isolates induced wilt symptoms. Agrobacterium tumefaciens also was pathogenic, causing crown galls on stem tissue after needle prick inoculation. In Micro-Tom sprayed with Pseudomonas syringae pv. tomato, P. s. pv. tabaci, or P. s. pv. glycinea, bacterial populations did not increase, and yellow lesions appeared only on leaves sprayed with P. s. pv. tomato. Tomato mosaic virus, Tomato aspermy virus, and Cucumber mosaic virus systemically infected Micro-Tom, which developed symptoms characteristic of other cultivars of tomato after infection with the respective virus. These results indicated that Micro-Tom was generally susceptible to most of the important tomato pathogens and developed typical symptoms, whereas certain pathogens were restricted by either hypersensitive resistance or nonhost resistance on Micro-Tom. Therefore, an assortment of Micro-Tom-pathogen systems should provide excellent models for studying the mechanism of susceptible and resistant interactions between plants and pathogens.

Original languageEnglish
Pages (from-to)8-22
Number of pages15
JournalJournal of General Plant Pathology
Issue number1
Publication statusPublished - Feb 2005


  • Agrobacterium tumefaciens
  • Alternaria alternata
  • Athelia rolfsii
  • Botryotinia fuckeliana
  • Corynespora cassiicola
  • Cucumber mosaic virus
  • Fusarium oxysporum
  • Lycopersicon esculentum cultivar
  • Micro-Tom
  • Oidium sp.
  • Phytophthora infestans
  • Pseudomonas syringae

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Plant Science


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