Aquaporins 6 Hydrogen-Ion Concentration 6 Phylogeny 6 Water 6 aquaporin 6 article 6 genetics 6 metabolism 6 pH 6 pH sensing 6 phylogeny 6 water 6 Amino acids 4 Arabidopsis 4 Arabidopsis Proteins 4 Arabidopsis protein 4 Arabidopsis thaliana 4 Double mutants 4 Glycoproteins 4 In-vitro 4 Metabolism 4 Mitochondria 4 Mutagenesis, Insertional 4 Nitrogen 4 Plant sexual reproduction 4 Pollen Tube 4 Pollen tube 4 RNA, Plant 4 Remobilization 4 Single mutant 4