The effect of temperature on growth, indole alkaloid accumulation and lipid composition of Catharanthus roseus cell suspension cultures

1992 ◽  
Vol 11 (8) ◽  
Author(s):  
Leena Toivonen ◽  
Simo Laakso ◽  
Heikki Rosenqvist
Planta Medica ◽  
1983 ◽  
Vol 48 (05) ◽  
pp. 20-23 ◽  
Author(s):  
D. Neumann ◽  
G. Krauss ◽  
M. Hieke ◽  
D. Gröger

1981 ◽  
Vol 36 (1-2) ◽  
pp. 40-43 ◽  
Author(s):  
K.-H. Knobloch ◽  
B. Hansen ◽  
J. Berlin

Abstract Recently medium conditions have been developed which stimulate the formation of the indole alkaloid ajmalicine in cell suspension cultures of Catharanthus roseus [6]. When cells were subjected to these conditions the alkaloid accumulation was preceded by a 12-fold increase of the specific activity of tryptophan decarboxylase. The enzyme activity showed a maximum two days after the cell transfer into the induction medium and subsequently declined. In contrast the activity of strictosidine synthase, the enzyme condensing tryptamine and secologanin, was present over the entire measuring period at a constant level. The intracellular content of tryp­tamine and ajmalicine increased during a period of 6 days after cell transfer and reached a plateau after that time. A possible regulatory function of tryptophan decarboxylase in indole alkaloid biosynthesis is discussed.


Plant Science ◽  
1998 ◽  
Vol 133 (1) ◽  
pp. 9-15 ◽  
Author(s):  
Abdelouahab Yahia ◽  
Claire Kevers ◽  
Thomas Gaspar ◽  
Jean-Claude Chénieux ◽  
Marc Rideau ◽  
...  

1995 ◽  
Vol 15 (1-2) ◽  
pp. 51-54 ◽  
Author(s):  
Kyung Hee Jung ◽  
Sang Soo Kwak ◽  
Cha Yong Choi ◽  
Jang R. Liu

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