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Table 1 Key genes from CCMs, C4-like metabolism and photorespiration in the laboratory model microalga Chlamydomonas reinhardtii, Phaeodactylum tricornutum and the model industrial oleaginous microalga Nannochloropsis oceanica

From: Transcriptomic and proteomic responses to very low CO2 suggest multiple carbon concentrating mechanisms in Nannochloropsis oceanica

Gene or pathway Chlamydomonas reinhardtii Phaeodactylum tricornutum Nannochloropsis oceanica
Carbonic anhydrase (CA) CA1, CA2, CA3, CA4, CA5, CA6, CA7, CA8, CA9, CAG1, CAG2, CAG3 CA1, CA2, CA3, CA4, CA5, CA6, CA7, CA8, CA9, CA10, CA11, CA12, CA13 CA1, CA2, CA3, CA4, CA5 (i.e., CAH1)
Bicarbonate transporter LCIB1, LCIB2, LCIB3 SLC4-1, SLC4-2, SLC4-3, SLC4-4, SLC4s, SLC26 BCT1, BCT2, homologs of LCIB1 (g6826 and g532)
C4-like genes PEPC, PPDK1, PPDK2, ME, MDH PEPC1, PEPC2, PEPCK, PPDK1, ME, MDH PEPC, PEPCK, PPDK1, PPDK2, PPDK3, ME, MDH
Photorespiration HPR, SMT, GS1, GS2 GS1, GS2, OUC cycle GS1, GS2, OUC cycle
  1. Genes induced by the low CO2 stress are highlighted by underlined font
  2. CA, carbonic anhydrase; CAG, carbonic anhydrase in mitochondria; BCT, bicarbonate transporter; LCI, low-CO2-inducible protein; PEPC, phosphoenolpyruvate carboxylase; PEPCK, phosphoenolpyruvate carboxylase kinase; PPDK, pyruvate orthophosphate dikinase; MDH, malate dehydrogenase; ME, malic enzyme; SMT, serine:glyoxylate aminotransferase; HPR, hydroxypyruvate reductase; GS, glutamine synthetase
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