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. 2016 Dec 5;28(12):2974–2990. doi: 10.1105/tpc.16.00478

Figure 9.

Figure 9.

A Simplified Scheme of Chlorophyll Metabolism with CLD1 in Chlorophyll Turnover.

Chlide a, the precursor of chlorophyll a, can be produced from a de novo pathway via protochlorophyllide (Pchlide) or from dephytylation of chlorophyll a catalyzed by CLD1 during chlorophyll turnover. The Chlide b accumulated in cld1-1 could result from chlorophyll b dephytylation or oxidation of Chlide a, which is not yet certain. POR, protochlorophyllide oxidoreductase; CHLG, chlorophyll synthase; CAO, Chlide a oxidase; CBR, chlorophyll b reductase; HCAR, 7-hydroxymethyl chlorophyll a reductase; MCS, metal chelating substance; SGR, STAY-GREEN (chlorophyll a Mg-dechelatase); SGRL, STAY-GREEN-LIKE (Chlide/chlorophyll a Mg-dechelatase).