ArticleProceedings of the National Academy of Sciences of the United States of America2002
The systemin precursor gene regulates both defensive and developmental genes in Solanum tuberosum.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 33 citations in OpenAlex.
- Metabolomic and volatile profiling reveals defence-related effects of IbPep1 in sweet potato cell culture.BMC plant biology · 2026Article
- Down-regulation of systemin after herbivory is associated with increased root allocation and competitive ability in Solanum nigrum.Oecologia · 2009Article
- Article
- Effects of postharvest storage and dormancy status on ABA content, metabolism, and expression of genes involved in ABA biosynthesis and metabolism in potato tuber tissues.Plant molecular biology · 2006Article
- Plant respiratory burst oxidase homologs impinge on wound responsiveness and development in Lycopersicon esculentum.The Plant cell · 2004Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Transformation of Solanum tuberosum, cv. Desiree, with the tomato prosystemin gene, regulated by the 35S cauliflower mosaic virus promoter, resulted in constitutive increase in defensive proteins in potato leaves, similar to its effects in tomato plants, but also resulted in a dramatic increase in storage protein levels in potato tubers. Tubers from selected transformed lines contained 4- to 5-fold increases in proteinase inhibitor I and II proteins, >50% more soluble and dry weight protein, and >50% more total nitrogen and total free amino acids than found in wild-type tubers. These results suggest that the prosystemin gene plays a dual role in potato plants in regulating proteinase inhibitor synthesis in leaves in response to wounding and in regulating storage protein synthesis in potato tubers in response to developmental cues. The results indicated that components of the systemin signaling pathway normally found in leaves have been recruited by potato plants to be developmentally regulated to synthesize and accumulate large quantities of storage proteins in tubers.
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Registered trials
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