Abstract
It is presently assumed that in higher plants, chlorophyll (Chl) biosynthesis takes place only in the light (1). It is also widely held that this process originates in glutamic acid which is converted to tetrapyrroles via δ-aminolevulinic acid (ALA) by the plastids (2–5). As a consequence, it is firmly believed that glutamate and ALA are equivalent precursors of Chl In the present investigation (a) we confirm that in greening barley, Chlbiosynthesis can take place in darkness and (b) demonstrate that exogenous glutamate and exogenous ALA are not equivalent precursors of monovinyl (MV) and divinyl (DV) protochlorophyllide (Pchlide) and of Chlin darkness.
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© 1987 Springer Science+Business Media Dordrecht
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Tripathy, B.C., Rebeiz, C.A. (1987). Non Equivalence of Glutamic and δ-Aminolevulinic Acids as Substrates for Protochlorophyllide and Chlorophyll Biosynthesis in Darkness. In: Biggins, J. (eds) Progress in Photosynthesis Research. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-0519-6_90
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DOI: https://doi.org/10.1007/978-94-017-0519-6_90
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