Table I.

Pigment composition of 5-week-old dark-grown P. sylvestris primary needles

Pigmentlogk-aConcentration
pmol/plant
Chlidea −0.5386.86
Pchlidea −0.325.01
trans-Neoxanthin−0.0358.13
trans-Violaxanthin0.07168.81
lutein-5,6-epoxide0.2287.92
Pheophytin b0.33ND-b
trans-Lutein0.41340.85
Chlb 0.7220.66
Chlide atetrahydrogeranylgeraniol0.83183.65
Chlide aphytol0.86100.20
α-Carotene1.044.42
β-Carotene1.0530.45
Pheophytina 1.0816.31
Chla/b -c 10.35
Xanthophyll/carotenoid18.8
Carotenoid/Chl0.34
  • F0-a k′ = (tR − t0)/t0, where t0and tR represent the retention time of an unretained and a retained peak, respectively.

  • F0-b ND, Not determined.

  • F0-c Chlide a esters/Chlb ratio.