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. 2014 Jan 24;9(1):e87015. doi: 10.1371/journal.pone.0087015

Table 1. Light condition characteristics, and photosynthetic and biochemical properties in Pseudo-nitzschia multistriata cells.

Blue Blue-red Blue-red-green Red
Low High Low High Low High Low
(B-L) (B-H) (BR-L) (BR-H) (BRG-L) (BRG-H) (R-L)
PFD 250 450 250 450 250 450 250
Blue 250 450 200 360 105 189 0
Green 0 0 0 0 100 180 0
Red 0 0 50 90 45 81 250
Red : Blue 0 0 0.25 0.25 0.43 0.43 0
a* 2.51 (0.09) 1.46 (0.07) 2.69 (0.22) 2.89 (0.10) 1.97 (0.63) 1.22 (0.08) 4.44 (0.05)
PUR 2.47 (0.09) 2.4 (0.06) 2.27 (0.23) 4.39 (0.16) 1.49 (0.51) 1.95 (0.12) 1.11 (0.23)
relETRmax 2.72 (0.13) 1.66 (0.11) 3.61 (0.41) 3.45 (0.17) 2.13 (0.57) 1.07 (0.09) 2.63 (0.47)
α 6.7 (1.1) 3.8 (0.27) 7.3 (0.36) 7.1 (0.44) 4.9 (0.96) 3.0 (0.54) 13 (2.2)
Ek 408 (66) 431 (21) 497 (32) 491 (39) 472 (37) 363 (84) 200 (5)
POC 131 (37) 62 (8) 80 (5) 80 (5) 100 (8) 89 (5) 154 (28)
POC/PON 4.9 (0.52) 4.3 (0.63) 4.8 (0.27) 4.7 (0.37) 6.2 (0.76) 4.7 (0.05) 2.9 (0.19)
Chl a/POC 8.2 (4.8) 10.3 (2.9) 13.8 (2.6) 10.7 (1.5) 9.8 (2.2) 10.8 (0.9) 6.2 (2.5)

Blue, green and red fluence rates (µmol photon m−2 s−1) measured at light peak and red : blue ratio values for the different light conditions. a*×10–11, absorption coefficient (m2 cell−1); PUR×10–6, photosynthetically usable radiation (µW cell–1); relETRmax×10–6, (maximal relative rate of linear electron transport, nmol e−1 s−1 cell−1), α×10–9 (maximum light use efficiency, nmol e−1 s−1 cell−1(µmol photon m−2 s−1) −1), and Ek (light intensity for reaching relETRmax, µmol photon m−2 s−1); POC, particulate organic carbon (pg cell−1); POC/PON, particulate organic carbon (POC) to particulate organic nitrogen (PON) ratio (pg/pg); Chl a/POC×10–3, Chlorophyll a to POC ratio (pg/pg). Data represent mean and standard deviation. For a* and PUR, n = 3; For relETRmax, α and Ek, n = 6 (mean of the two days light peak measurements); For POC, PON, POC/PON and Chl a/POC, n = 21.