Table 2 Endogenous levels of indole-3-acetic acid (IAA) and abscisic acid (ABA) in shoots and roots of 30 day old in vitro grown potato plants, and their ratio to the endogenous level of cytokinin nucleobases in respective tissues.

From: Endogenous levels of cytokinins, indole-3-acetic acid and abscisic acid in in vitro grown potato: A contribution to potato hormonomics

Plant hormone

Shoots

Roots

IAA (pmol/gFW)

82.0 ± 19.0

62.3 ± 11.9

IAA/CK nucleobase ratio

9.6 ± 2.2

13.0 ± 2.5*

ABA (pmol/gFW)

251.9 ± 14.9*

124.3 ± 7.8

ABA/CK nucleobase ratio

29.6 ± 1.8

25.9 ± 1.6

  1. Asterisks (*) are used to indicate the greater of the two values, where differences between shoot and root are statistically significant (P < 0.05 according to Student’s t-test).
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