Table V.

Groups of functionally related genes up-regulated in roots after K resupply

GroupsAGICodeAnnotationRankCategory
Nitrate Transporter ActivityAt1g08090NRT2.1High-affinity nitrate transporter NRT21Transport
Minimal P-valueEvidenceAt3g45060NRT2.6High-affinity nitrate transporter-like protein2Transport
1.05E−10G (2x), K(3x), F, M (3x), TAt5g60780NRT2.3High-affinity nitrate transporter protein-like3Transport
Aquaporin; Water Channel ActivityAt2g37170PIP2,2Aquaporin (plasma membrane intrinsic protein 2B)32Transport
Minimal P-valueEvidenceAt4g35100PIP2,7Plasma membrane intrinsic protein (SIMIP)68Transport
1.53E−07T, G (3x), K, FAt3g26520TIP1,2Gamma tonoplast intrinsic protein73Transport
At3g53420PIP2,1Plasma membrane intrinsic protein 2a97Transport
At3g61430PIP1,1Plasma membrane intrinsic protein 1a143Transport
At2g34390NIP2,1Putative aquaporin (plasma membrane intrinsic protein)434Transport
At5g37820NIP4,2Membrane integral protein (MIP)-like643Transport
At4g00430PIP1,4Probable plasma membrane intrinsic protein 1c823Transport
At2g36830TIP1,1Putative aquaporin (tonoplast intrinsic protein gamma)847Transport
At2g16850PIP2,8Putative plasma membrane intrinsic protein951Transport
At4g01470TIP1,3Putative water channel protein954Transport
At1g52180TIPAquaporin, putative956Transport
At2g37180PIP2,3Aquaporin (plasma membrane intrinsic protein 2C)1,060Transport
At5g18290SIP1,2Putative protein1,276Transport
At3g04090SIP1,1Hypothetical protein1,313Transport
PeroxidaseAt4g11290AtP19Peroxidase, putative10Cell wall
Minimal P-valueEvidenceAt5g19890AtPNPeroxidase, putative21Cell wall
8.75E−05KAt3g01190AtP12Peroxidase, putative25Cell wall
At4g30170AtP8Peroxidase, putative111Cell wall
At4g08770AtP38Peroxidase, putative151Cell wall
At5g66390AtP6Peroxidase, putative174Cell wall
ArabinogalactanAt4g26320AGP13Arabinogalactan-protein6Cell wall
Minimal P-valueEvidenceAt5g10430AGP4Arabinogalactan-protein11Cell wall
9.37E−05KAt5g53250AGP22Arabinogalactan-protein, putative47Cell wall
  • K+-responsive groups of functionally related genes were identified by iGA based on RP lists of root genes sorted for up-regulation over six experiments (6 h K+resupply, three replicates with two controls each). Significantly affected gene groups up to a FDR of 10% are shown. For rank and evidence details, see footnote of Table IV.