Expression of a plant cystatin confers partial resistance to Globodera, full resistance is achieved by pyramiding a cystatin with natural resistance

作者: Peter E. Urwin , Jayne Green , Howard J. Atkinson

DOI: 10.1023/A:1026352620308

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摘要: Constructs based on a cysteine proteinase inhibitor (cystatin) from sunflower and protein engineered variant of rice cystatin (Oc-IΔD86) conferred similar levels resistance potato plants to Globodera spp as chicken egg white (CEWC) under the control CaMV35S. The level challenge by 6.5 viable eggs g–1 soil in small scale field trial was that provided natural partial cv. Sante. PCR an internal transcribed spacer region ribosomal cistron nematode genome established challenging population mixture G. pallida rostochiensis with no evidence differential effect transgenic reproductive success two species. Transformation Sante South American cultivar Maria Huanca CaMV35S/CEWC raised status both cultivars full this study. results establish potential plant cystatins demonstrate additive expressing CEWC genes.

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