Abstract
The aim of this article is to discuss in vitro growth and organogenesis in relation to transport and metabolism of carbon compounds. Carbohydrates play a prominent part in the nutrition and the structure of a plant. Photosynthesis provides the carbon from CO2 and the potential energy whereas respiration makes the energy available. The synthesis of carbohydrates occurs mainly in the leaves whereas the photosynthetic products are used in nongreen cells often remote from the leaves. Many carbon compounds are synthesized in the leaves but very few are present in the phloem sap. Although sucrose is the main sugar in the translocation stream in most plants several other carbon compounds have been identified [36, 18]. It is also known that the ability to metabolize different types of sugars differ within the plant kingdom [28, 1, 17]. Translocation and partition of assimilated carbon are regulated in response to both leaf and plant ontogeny as well as environmental conditions [16, 30]. The composition of the phloem sap seems to correspond to the substances being translocated [24, 13, 20]. However when analyzing the phloem sap not only the collection technique is of importance but also the detection and quantification techniques. It has been shown that in vitro cultures of various plant species differ in uptake and utilization of different carbon sources which in its turn affect growth and development [33]. This article deals with the following areas. 1) Transport of carbohydrates; 2) Analysis of the phloem sap; 3) Assimlate allocation and partitioning; 4) In vitro growth as influenced by the carbon source; 5) Organogenesis as influenced by the carbon source.
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Welander, M., Pawlicki, N. (1994). Carbon compounds and their influence on in vitro growth and organogenesis. In: Lumsden, P.J., Nicholas, J.R., Davies, W.J. (eds) Physiology, Growth and Development of Plants in Culture. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0790-7_9
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DOI: https://doi.org/10.1007/978-94-011-0790-7_9
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