Skip to main content
. 2004 Jan 6;101(1):402–407. doi: 10.1073/pnas.2237237100

Table 1. β-Xanthophyll production and β-ring hydroxylation in leaf tissue of wild-type and carotenoid hydroxylase mutants.

Genotype β-Xanthophylls* Hydroxylated β-rings
Ws 54.0 ± 2.7a 48.5 ± 1.0a
Col 60.7 ± 7.6a 48.7 ± 0.9a
b1 b2 20.5 ± 4.8b 40.2 ± 1.4b
lut1—2 b1 b2 26.5 ± 3.4b 33.6 ± 2.4c
lut1—3 b1 b2 28.3 ± 4.6b 31.1 ± 1.2c

Total carotenoids were extracted from 5-week-old plants and quantified by HPLC as described (12).

*

β-Xanthophylls are the sum of zeaxanthin, antheraxanthin, violaxanthin, and neoxanthin as mmol of pigment/mol of chlorophyll a + b

Data are given as percentage of total ring hydroxylation

All values are means ± SD (n = 6). Values marked with the same letters are not significantly different from each other within a column (Student's t test, P > 0.05)

HHS Vulnerability Disclosure