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Table 3 Double-bond index (DBI) of membrane lipids in Arabidopsis and rice after various low-temperature treatments

From: Glycerolipidome responses to freezing- and chilling-induced injuries: examples in Arabidopsis and rice

Lipid class Plant species   Arabidopsis (−6 °C)/Rice (10 °C) Arabidopsis (−12 °C)/Rice (4 °C)
   C T R1 R3 T R1 R3
   Double-bond index (DBI)
DGDG Arabidopsis 5.34 ± 0.04b* 5.41 ± 0.13ab* 5.47 ± 0.05a 5.49 ± 0.03a* 5.41 ± 0.04ab* 5.33 ± 0.06b* 5.08 ± 0.14c*
  Rice 5.47 ± 0.02b 5.56 ± 0.02a 5.46 ± 0.01b 5.34 ± 0.02c 5.49 ± 0.02b 5.59 ± 0.03a 5.49 ± 0.06b
MGDG Arabidopsis 5.94 ± 0.01a* 5.93 ± 0.02a* 5.89 ± 0.01b* 5.92 ± 0.03ab* 5.93 ± 0.02ab 5.81 ± 0.04c* 5.74 ± 0.05d*
  Rice 5.89 ± 0.01b 5.89 ± 0.01b 5.83 ± 0.01cd 5.84 ± 0.01c 5.92 ± 0.00a 5.90 ± 0.01b 5.82 ± 0.03d
PG Arabidopsis 3.16 ± 0.08a* 3.15 ± 0.11a* 3.09 ± 0.08a* 3.09 ± 0.10a* 3.11 ± 0.04a* 3.12 ± 0.06a* 2.97 ± 0.08b*
  Rice 2.71 ± 0.04a 2.56 ± 0.02b 2.40 ± 0.05c 2.39 ± 0.04c 2.58 ± 0.08b 2.35 ± 0.11c 2.20 ± 0.10d
PA Arabidopsis 3.36 ± 0.13d* 4.24 ± 0.23a* 3.81 ± 0.12b* 3.58 ± 0.16c* 3.82 ± 0.07b* 3.77 ± 0.04b* 3.39 ± 0.08d*
  Rice 2.79 ± 0.18c 3.16 ± 0.10b 2.93 ± 0.20c 2.95 ± 0.19c 3.32 ± 0.06ab 3.42 ± 0.05a 3.21 ± 0.06b
PC Arabidopsis 3.77 ± 0.04ab* 4.03 ± 0.15a* 3.84 ± 0.11ab* 3.73 ± 0.06ab* 3.73 ± 0.13ab* 3.54 ± 0.09b* 3.60 ± 0.58b
  Rice 3.17 ± 0.02c 3.17 ± 0.01c 3.03 ± 0.04d 3.05 ± 0.04d 3.36 ± 0.03a 3.28 ± 0.06b 3.26 ± 0.06b
PE Arabidopsis 3.51 ± 0.08ab* 3.65 ± 0.11a* 3.51 ± 0.12ab* 3.49 ± 0.05abc* 3.29 ± 0.09c* 2.99 ± 0.18d 3.39 ± 0.29bc*
  Rice 3.17 ± 0.03b 3.12 ± 0.02b 3.18 ± 0.03b 3.26 ± 0.05a 3.12 ± 0.02b 3.00 ± 0.08c 3.03 ± 0.07c
PI Arabidopsis 2.78 ± 0.02b 2.99 ± 0.08a* 2.82 ± 0.07b* 2.79 ± 0.04b* 2.78 ± 0.03b* 2.80 ± 0.01b* 2.65 ± 0.10c*
  Rice 2.78 ± 0.04c 2.86 ± 0.03b 2.61 ± 0.03d 2.60 ± 0.01d 3.19 ± 0.06a 2.90 ± 0.06b 2.79 ± 0.03c
PS Arabidopsis 2.62 ± 0.06a* 2.74 ± 0.12a* 2.74 ± 0.08a* 2.64 ± 0.08a* 2.78 ± 0.26a* 2.71 ± 0.09a* 2.49 ± 0.59a
  Rice 2.47 ± 0.03a 2.41 ± 0.10ab 2.41 ± 0.05ab 2.45 ± 0.05a 2.47 ± 0.10a 2.34 ± 0.08b 2.43 ± 0.05ab
Total Arabidopsis 5.58 ± 0.04a* 5.46 ± 0.06b* 5.46 ± 0.02b* 5.54 ± 0.05ab* 4.33 ± 0.07c* 4.08 ± 0.11d* 4.08 ± 0.15d*
  Rice 5.40 ± 0.04a 5.39 ± 0.02a 5.33 ± 0.02ab 5.39 ± 0.01a 5.26 ± 0.07b 5.01 ± 0.07c 4.71 ± 0.17d
  1. DBI = (∑[N × mol % lipid])/100, N is the total number of double bonds in the two fatty acid chains of each glycerolipid molecule. “C” represents “control”, “T” indicates samples taken immediately after each cold treatment, and “R1” and “R3” indicate samples taken after post treatment recovery for 1 and 3 days, respectively. Values in the same row marked with different letters are significantly different, while an asterisk means that the value in Arabidopsis is significantly different from that in rice (p < 0.05). Values are means ± SD (n = 4 or 5)