Differential solasodine accumulation in photoautotrophic and heterotrophic tissue cultures of Solanum laciniatum |
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| Affiliation: | 1. Department of Physics, University of Shahrood, Shahrood 36155-316, Iran;2. Department of Chemistry, University of Shahrood, Shahrood 36155-316, Iran;1. College of Physics and Electronic Engineering, Hengyang Normal University, Hengyang 421002, PR China;2. Key Laboratory for Physical Electronics and Devices of the Ministry of Education, School of Science, Xi’an Jiaotong University, Xi’an 710049, PR China;3. College of Physics and Information Engineering, Hebei Advanced Thin Films Key Laboratory, Hebei Normal University, Shijiazhuang 050024, PR China;1. Department of painting, faculty of fine arts, Granada university, 18071 Granada, Spain;2. Department of mineralogy and petrology, faculty of sciences, Granada university, 18071 Granada, Spain |
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| Abstract: | Foliage from a Solanum laciniatum plant contained 7.64 mg solasodine per g dry weight. In contrast, leaf-derived callus cultures incubated under light yielded only 0.09 mg/g solasodine. A similar low level was recovered from shoots regenerated from this callus and cultured under heterotrophic conditions. However, shoots cultured photoheterotrophically or photoautotrophically yielded solasodine concentrations approaching those of field grown plants. Solasodine biosynthesis in S. laciniatum is therefore promoted by actively photosynthesising chloroplasts, and cell cultures yield only low solasodine levels as a consequence of their heterotrophic mode of nutrition. |
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