Skip to main content

Table 4 Chlorophyll a content and oxygen evolution rate of Synechocystis sp. PCC 6803 WT and Δsll0474 mutant under nitrogen- and low temperature stress

From: Revealing the key point of the temperature stress response of Arthrospira platensis C1 at the interconnection of C- and N- metabolism by proteome analyses and PPI networking

Strain +NO3 -NO3
Day0 Day1 Day2 Day0 Day1 Day2
Cell grown at 30 °C
 Chlorophyll content
(mg/l)
      
 WT 5.9 + 0.02 6.4 + 0.03 6.69 + 0.01 5.9 + 0.13 5.9 + 0.07 4.91 + 0.01
 MTΔsll0474 5.5 + 0.45 5.6 + 0.24 5.87 + 0.05 5.5 + 0.42 5.1 + 0.04 4.13 + 0.04
 O2 evolution content
(μmolO2mg−1Chl.hr.− 1)
      
 WT 373.1 + 1.6 380.4 + 12.9 390.9 + 2.9 372.6 + 2.3 261.6 + 10.5 252.2 + 6.1
 MTΔsll0474 379.1 + 2.2 327.3 + 17.1 381.1 + 12.6 381.2 + 14.8 253.4 + 3.6 244.3 + 6.8
Cell grown at 16 °C
 Chlorophyll content
(mg/l)
      
 WT 5.5 + 0.59 5.2 + 0.06 4.80 + 0.14 5.6 + 0.63 4.8 + 0.14 4.00 + 0.14
 MTΔsll0474 5.4 + 0.07 4.8 + 0.01 4.22 + 0.03 5.4 + 0.07 4.3 + 0.13 2.30 + 0.12
 O2 evolution content
(μmolO2mg−1Chl.hr.−1)
      
 WT 368.9 + 24.9 354.5 + 10.7 309.5+ 2.9 368.9 + 24.9 306.3 + 4.9 303.9 + 1.1
 MTΔsll0474 379.3 + 20.3 270.7 + 14.3 203.2 + 3.7 378.2 + 6.9 265.6 + 7.1 144.3 + 20.4