Molecular Biology, Biochemistry and Biophysics Molekularbiologie, Biochemie und Biophysik

Secondary Metabolism and Cell Differentiation

Authors: Luckner, M., Nover, Lutz, Böhm, H.

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1. Secondary Metabolism and Differentiation In addition to the primary metabolic reactions, which are similar in all living beings (formation and breakdown of nucleic acids and proteins as well as of their precursors, of most carbohy­ drates, of some carboxylic acids, etc. ), a vast number of metab­ olic pathways lead to the formation of compounds peculiar to a few species or even to a single chemical race only. These reac­ tions, in accord with CZAPEK (1921) and PAECH (1950), are summed up under the term "secondary metabolism", and their products are called "secondary metabolites. " The wide variety of secondary products formed in nature includes such well-known groups as alkaloids, antibiotics, cardiac glyco­ sides, tannins, saponins, volatile oils, and others. A consider­ able number of them are of economic importance in therapeutics or technology. Although secondary products are produced by micro­ organisms, higher plants, and animals (cf. LUCKNER, 1972), most of the substances are found in the plant kingdom. The lack of mechanisms for true excretion in higher plants may result in this unequal distribution, the "waste products" of metabolism in plants instead being accumulated in the vacuoles, the cell walls, or in special excretory cells or spaces of the organism ("metabolic excretion," cf. FREY-WYSSLING, 1935, 1970; MOTHES, 1966a, b, 1972; LUCKNER et al. , 1976. Many secondary substances have, however, a direct biologic func­ tion. They can be regulatory effectors, e. g.

Table of contents (1 chapter)

  • Secondary Metabolism in Cell Cultures of Higher Plants and Problems of Differentiation

    Hartmut Böhm

    Pages 103-123

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Buy this book

eBook $99.00 net
( price for USA )
  • ISBN 978-3-642-81102-9
  • digitally watermarked, no DRM
  • included format: PDF
  • eBooks can be used on all Reading Devices
Softcover $129.00 net
( price for USA )
  • ISBN 978-3-642-81104-3
  • free shipping for individuals worldwide
  • usually dispatched within 3 to 5 business days

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Bibliographic Information

Bibliographic Information
Book Title
Secondary Metabolism and Cell Differentiation
Series Title
Molecular Biology, Biochemistry and Biophysics Molekularbiologie, Biochemie und Biophysik
Series Volume
23
Copyright
1977
Publisher
Springer-Verlag Berlin Heidelberg
Copyright Holder
Springer-Verlag Berlin Heidelberg
eBook ISBN
978-3-642-81102-9
DOI
10.1007/978-3-642-81102-9
Softcover ISBN
978-3-642-81104-3
Series ISSN
0077-0221
Edition Number
1
Topics