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Transgenic maize plants expressing the Totivirus antifungal protein, KP4, are highly resistant to corn smut.

06:00 EST 10th February 2011 | BioPortfolio

Summary of "Transgenic maize plants expressing the Totivirus antifungal protein, KP4, are highly resistant to corn smut."

The corn smut fungus, Ustilago maydis, is a global pathogen responsible for extensive agricultural losses. Control of corn smut using traditional breeding has met with limited success because natural resistance to U. maydis is organ specific and involves numerous maize genes. Here, we present a transgenic approach by constitutively expressing the Totivirus antifungal protein KP4, in maize. Transgenic maize plants expressed high levels of KP4 with no apparent negative impact on plant development and displayed robust resistance to U. maydis challenges to both the stem and ear tissues in the greenhouse. More broadly, these results demonstrate that a high level of organ independent fungal resistance can be afforded by transgenic expression of this family of antifungal proteins.

Affiliation

Donald Danforth Plant Science Center, Saint Louis, MO, USA Department of Plant Pathology, University of Georgia, Athens, GA, USA.

Journal Details

This article was published in the following journal.

Name: Plant biotechnology journal
ISSN: 1467-7652
Pages:

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