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

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

Strain	+NO₃			-NO₃
Strain	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

ISSN: 2661-8850