Article (Scientific journals)
Erythromycin as a tool to investigate the tetrapyrrole biosynthetic pathways in habituated and normal sugarbeet calli
Bisbis, B.; Kevers, Claire; Huault, C. et al.
1997In Plant Growth Regulation, 23 (3), p. 147-152
Peer reviewed
 

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Keywords :
Beta vulgaris; Callus; Catalase; Heme; Shemin pathway
Abstract :
[en] Erythromycin (ERT) has been shown to reduce the 5-aminolevulinic acid (ALA) synthesizing capacity of a normal (N) chlorophyllous sugarbeet callus, grown under light, in contrast to a habituated achlorophyllous nonorganogenic (HNO) callus of the same species. Similar effects were obtained on total hemes and on catalase which is a hemoprotein used as marker. The effect of ERT, which is an inhibitor of plastid differentiation and of chlorophyll synthesis, was reversed in the N callus by a supply of glycine and succinate. The compounds are the precursors of ALA synthesized through 5-aminolevulinic acid synthase (ALAS) which is implied in the Shemin pathway. The involvement of ALAS appeared to be favoured when plastids were undifferentiated (HNO callus) or when plastids were inefficient (N callus under darkness or under light after ERT treatment).
Disciplines :
Phytobiology (plant sciences, forestry, mycology...)
Author, co-author :
Bisbis, B.;  Hormonologie Fond. et Appl., Institut de Botanique B 22, University of Liège, Sart Tilman, B - 4000 Liège, Belgium
Kevers, Claire ;  Université de Liège > Département des sciences de la vie > Département des sciences de la vie
Huault, C.;  Physiol. et Biochim. Veg., University of Caen, Esplanade de la Paix, F -14032 Caen, France
Billard, J. P.;  Physiol. et Biochim. Veg., University of Caen, Esplanade de la Paix, F -14032 Caen, France
Caspar, Th;  Hormonologie Fond. et Appl., Institut de Botanique B 22, University of Liège, Sart Tilman, B - 4000 Liège, Belgium
Language :
English
Title :
Erythromycin as a tool to investigate the tetrapyrrole biosynthetic pathways in habituated and normal sugarbeet calli
Publication date :
1997
Journal title :
Plant Growth Regulation
ISSN :
0167-6903
eISSN :
1573-5087
Publisher :
Kluwer Academic Publishers, Netherlands
Volume :
23
Issue :
3
Pages :
147-152
Peer reviewed :
Peer reviewed
Available on ORBi :
since 15 July 2015

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