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Table 2 Effect of two different levels of silicate in media (PT-7 and PT-8) on the accumulation of carotenoids in P. tricornutum under elevated light intensities

From: Combined artificial high-silicate medium and LED illumination promote carotenoid accumulation in the marine diatom Phaeodactylum tricornutum

Photon flux (μmol/m2/s)128 (%)204 (%)255 (%)
β-Carotene
 PT-7100257.6 ± 0.4*312.7 ± 23.4*
 PT-8100239.6 ± 0.5*475.3 ± 19.2*
Diadinoxanthin
 PT-7100123.4 ± 0.4*125.1 ± 4.1*
 PT-810075.3 ± 4.5*72.8 ± 6.6*
Violaxanthin
 PT-7100119.7 ± 0.6*151.3 ± 2.2*
 PT-810096.5 ± 9.1NS75.9 ± 7.3*
β-Cryptoxanthin
 PT-710090.5 ± 11.2NS90.6 ± 7.9NS
 PT-8100144.6 ± 23.4*157.5 ± 2.9*
Phoenicoxanthin
 PT-710095.1 ± 2.9NS109.4 ± 2.0NS
 PT-810055.0 ± 1.5*57.6 ± 6.2*
  1. Data were averaged from either two or three independent experiments (mean ± SE). Contents of carotenoid species in cells growing on PT-7 and PT-8 medium under a pure (or 100%) red light with an intensity of 128 μmol/m2/s were set as references (100%), respectively
  2. Asterisk (*) indicates statistically significant difference between its low light condition and higher (204 or 255 μmol/m2/s) light condition
  3. NS represents no statistically significant difference between its low light condition and higher (204 or 255 μmol/m2/s) light condition