Ectopic Expression of an Oat Thionin Gene in Carnation Plants Confers Enhanced Resistance to Bacterial Wilt Disease.

Shirasawa-Seo, Naomi; Nakamura, Shigeo; Ukai, Naomi; Honkura, Ryoso; Iwai, Tsuruji; Ohashi, Yuko

doi:10.5511/plantbiotechnology.19.311

Cited by 8 publications

(1 citation statement)

References 17 publications

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“…Further support for a role of thionins as defence peptides comes from studies in which exogenous or endogenous thionin genes are overexpressed in plants. Overexpression of plant thionin genes leads to enhanced resistance against a broad range of bacterial and fungal pathogens (Bohlmann and Broekaert, ; Chan et al ., ; Epple et al ., ; García‐Olmedo et al ., ; Holtorf et al ., ; Iwai et al ., ; Muramoto et al ., ; Shirasawa‐Seo et al ., ).…”

Section: Introductionmentioning

confidence: 97%

The role of thionins in rice defence against root pathogens

Gheysen

Ullah

Verbeek

et al. 2015

Molecular Plant Pathology

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Thionins are antimicrobial peptides that are involved in plant defence. Here, we present an in-depth analysis of the role of rice thionin genes in defence responses against two root pathogens: the root-knot nematode Meloidogyne graminicola and the oomycete Pythium graminicola. The expression of rice thionin genes was observed to be differentially regulated by defence-related hormones, whereas all analysed genes were consistently down-regulated in M. graminicola-induced galls, at least until 7 days post-inoculation (dpi). Transgenic lines of Oryza sativa cv. Nipponbare overproducing OsTHI7 revealed decreased susceptibility to M. graminicola infection and P. graminicola colonization. Taken together, these results demonstrate the role of rice thionin genes in defence against two of the most damaging root pathogens attacking rice.

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