Abstract
Plant cell and suspension cultures have been established from stem cuttings of Picrasma quassioides Bennett. The effect of 244 different types/concentrations of plant growth regulators on growth and quassin accumulation in callus tissue was investigated. Best growth, in terms of wet/dry weight after four weeks growth, was obtained on B5 media supplemented with 2% glucose, 10% coconut milk, 0.5 mg.l−1 zeatin riboside and 1.5 mg.l−1 IBA. The highest yields of quassin (0.014–0.018%) were detected on this same media supplemented with 1.0 mg.l−1 IBA and varying concentrations of zeatin riboside. Suspension cultures were easily established on B5 media supplemented with 2% glucose, 1.0 mg.l−1 2,4-D and 0.5 mg.l−1 kinetin. The carbon source had a marked effect on quassin accumulation with 0.32% quassin being detected when cells were grown in 2% galactose. This is comparable to the highest reported quassin yield for the whole plant.
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Abbreviations
- IAA:
-
indole-3-acetic acid
- IBA:
-
indolebutyric acid
- IpA:
-
N6-(Δ-isopentenyl) adenine
- IpAR:
-
N-(Δ-isopentenyl) adenine riboside
- NAA:
-
naphthalene acetic acid
- 2,4-D:
-
2,4-dichlorophenoxyacetic acid
- 6BA:
-
6-benzyladenine
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Communicated by W. Barz
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Scragg, A.H., Allan, E.J. Production of the triterpenoid quassin in callus and cell suspension cultures of Picrasma quassioides Bennett. Plant Cell Reports 5, 356–359 (1986). https://doi.org/10.1007/BF00268601
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DOI: https://doi.org/10.1007/BF00268601