Phytochemistry 32: 551-556 (1993)
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The distribution of hydroxycinnamoylputrescines in different organs
of Solanum tuberosum and other Solanaceous species
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Gerhard Leubner-Metzger and Nikolaus Amrhein
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Institute of Plant Sciences, Plant Biochemistry and Physiology, Swiss
Federal Institute of Technology, Sonneggstr. 5, CH-8092 Zürich, Switzerland
Received: 25 June 1992
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Table 2. Comparison of the endogenous levels of the hydroxycinnamoyl acid amides (HCA) caffeoylputrescine (CP) and feruloylputrescine (FP) and the free polyamines (PA) putrescine (Put) and spermidine (Spd) with the endogenous phytohormone activities in equivalents of GA3, zeatin, ABA und IAA as measured by Koda and Okazawa (14).
| Developmental stage of tuber |
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HCA and PA (µmol / g dry weight) (this work) |
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Phytohormone activity (µg / kg fresh weight) (ref. (14)) |
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CP |
FP |
Put |
Spd |
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GA3 |
ZEATIN |
ABA |
IAA |
| Stage A |
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0.007 |
0.001 |
2.6 |
3.4 |
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2.2 |
0.2 |
0.7 |
5.9 |
| Stage B |
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0.013 |
0.004 |
1.2 |
2.4 |
|
0.9 |
0.3 |
2.1 |
8.6 |
| Stage C |
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0.017 |
0.007 |
0.8 |
1.5 |
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0.4 |
1.1 |
10.9 |
6.5 |
| Stage D |
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0.008 |
0.005 |
0.9 |
1.1 |
|
0.6 |
0.9 |
25.5 |
3.7 |
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Stage A = unthickened stolon tips; Stage B = thickened stolon tips; Stage C = young tubers < 0.5 cm; Stage C = young tubers 0.5-2 cm.
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