Engineered gray mold resistance, antioxidant capacity, and pigmentation in betalain-producing crops and ornamentals
| Autor: | Yonghui Dong, Asaph Aharoni, Adi Nudel, David Vela-Corcía, Margarita Pliner, Guy Polturak, Noam Grossman, Ilana Rogachev, Maggie Levy |
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| Rok vydání: | 2017 |
| Předmět: |
Crops
Agricultural 0106 biological sciences 0301 basic medicine Betalains Biofortification Color 01 natural sciences Petunia Antioxidants 03 medical and health sciences chemistry.chemical_compound Solanum lycopersicum Betalain Tobacco Botany Ornamental plant Solanum melongena Secondary metabolism Disease Resistance Plant Diseases Solanum tuberosum Botrytis cinerea Biological pigment Multidisciplinary biology Pigmentation fungi food and beverages Biological Sciences Plants Genetically Modified biology.organism_classification Biosynthetic Pathways Crop protection Horticulture 030104 developmental biology chemistry Botrytis 010606 plant biology & botany |
| Zdroj: | Proceedings of the National Academy of Sciences. 114:9062-9067 |
| ISSN: | 1091-6490 0027-8424 |
| Popis: | Betalains are tyrosine-derived red-violet and yellow plant pigments known for their antioxidant activity, health-promoting properties, and wide use as food colorants and dietary supplements. By coexpressing three genes of the recently elucidated betalain biosynthetic pathway, we demonstrate the heterologous production of these pigments in a variety of plants, including three major food crops: tomato, potato, and eggplant, and the economically important ornamental petunia. Combinatorial expression of betalain-related genes also allowed the engineering of tobacco plants and cell cultures to produce a palette of unique colors. Furthermore, betalain-producing tobacco plants exhibited significantly increased resistance toward gray mold (Botrytis cinerea), a pathogen responsible for major losses in agricultural produce. Heterologous production of betalains is thus anticipated to enable biofortification of essential foods, development of new ornamental varieties, and innovative sources for commercial betalain production, as well as utilization of these pigments in crop protection. |
| Databáze: | OpenAIRE |
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