FIG 5.

Responsiveness of light-harvesting complex (LHC) to nutrient stress. (A) Responses of LHC subfamilies to iron (y axis; >0 is up in low iron, <0 is down in low iron) and nitrogen (x axis; >0 is up in low nitrogen, <0 is down in low nitrogen). Chlorophyll is abbreviated “Chl.” Only LHC ORFs that are significantly differentially expressed (FDR < 0.05) under at least one condition are shown. (B) Phylogenetic tree showing expression of LHC transcripts in nutrient-replete conditions (MB1, MB3, and MB7; purple circles) versus nutrient-depleted conditions (MB2, MB4, and MB8; orange circles). The outer ring of the phylogenetic tree is colored according to LHC family (green is non-stress responsive, red is Lhcz, and blue is Lhcx [also known as Lhcsr or LI818]).