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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