Fig 4. Metabolism pathways involved in the response to salt stress in cotton.

Proteins involved in phenylalanine and starch and sucrose metabolism were mostly up-regulated in roots; Proteins involved in photosynthesis, carbon fixation, glycolysis, pyruvate metabolism and phenylalanine were mostly down-regulated in leaves. Red and green numbers represent expression level of up- and down-regulated proteins, respectively. PAL: phenylalanine ammonialyase; 4CL: 4-coumarate—CoA ligase; POD: peroxidase; UDPG: uridine diphosphate glucose; PGAL: glyceraldehyde 3-phosphate; PGA: 3-glyceric acid phosphate.