Genetically transformed shooty teratomas of Atropa belladonna and a Duboisia leichhardtii X D. myoporoides hybrid were studied for biotransformation of tropane alkaloids in shake flasks and bioreactors. Although de novo synthesis of hyoscyamine and scopolamine was limited, shoots of both species were able to translocate and accumulate significant quantities of exogenous alkaloid. The maximum yield of scopolamine from hyoscyamine fed to the Duboisia hybrid shoots was 35% w/w; the yield of the scopolamine precursor, 6ph yd roxyh yoscya m i ne, was 37% w/w. Biotransformation activity was poor in A. belladonna shooty teratomas provided with exogenous hyoscyamine; however, scopolamine levels comparable with those in leaves of the whole plant accumulated in shoots fed with hairy root extract. Coculture of A. belladonna shooty teratomas and hairy roots in the same hormone-free medium was investigated as a means of providing a continuous source of hyoscyamine for conversion to scopolamine. Of the biotransformation systems tested with A. belladonna, coculture produced the highest levels of scopolamine and the highest scopolamine: hyoscyamine ratios. Cocultured shoots accumulated up to 0.84 m g g-' dry weight scopolamine, or 3-1 1 times the average concentrations found in leaves of the whole plant. The scopolamine : hyoscyamine ratio in coculture ranged from 0.07 to 1.9, a significant improvement over levels of 0-0.03 normally found in A. belladonna hairy roots. Addition of Pluronic F-68 or copper sulfate t o the medium and variation in initial medium pH did not improve hyoscyamine release from hairy roots. Scopolamine levels were increased using 1 p M copper sulfate or initial medium pH between 6.0 and 8.0; however, results from elicitation of hairy roots could not match the beneficial effect on scopolamine synthesis of root-shoot coculture. Addition of 0.001-1.0% (w/v) Pluronic F-68 to the roots reduced hyoscyamine release but postponed necrosis in the root tissue for up t o 60 d. 0 1996 John Wiley & Sons, Inc.
The management of information technology (IT) projects has experienced a shift from predictive and traditional project management methodology to more adaptive practices like Agile. Agile method and its developmental stages are a response to current business-changing trends and computing needs of society. The process assists in accelerating product delivery with rapid feedback and cost-conscious, consecutive iteration, distinguishing it from other traditional practices like the waterfall method. This chapter contributes to the existing literature by discussing agile project management for IT projects, with a specific case of the Africa IT project – the Books for Africa Project (hereafter called, Book Project). The first part of the chapter is used to review the literature on Agile IT projects. The Book Project as a case is an IT project, and it is discussed in detail in the chapter. The chapter concludes with transferable lessons for projects in developing countries, specifically those located in Sub-Saharan Africa.
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