Table I. FCCs and NCCs occurring in Col-0 and mes16 mutants during chlorophyll breakdown as identified in this work.

Name	IDa	R1b	R2b	Identificationc	Identity with
At-NCC-1	1	O-Glucosyl	H	s	–
At-NCC-2	2	OH	H	s	–
At-NCC-3d	3	H	H	s	–
At-NCC-4	4	O-Glucosyl	CH3	s	mes16-NCC-1
At-NCC-5	5	H	H	s	–
mes16-FCC-1	6	O-Glucosyl	CH3	s, m	–
mes16-FCC-2	7	OH	CH3	s, m	–
mes16-FCC-3	8	H	CH3	s, m	pFCC
mes16-NCC-1	9	O-Glucosyl	CH3	s, m	At-NCC-4

^aID indicates peak numbers used in Figures 5 and 6.

^bR¹ and R² indicate residues at C8² and O13⁴ side positions, respectively, of FCCs or NCCs (for atom labeling, see Fig. 2D).

^cPeak identification by UV/visible spectra (s) or MS (m).

^dAt-NCC-3 carries a hydroxymethyl group instead of a methyl group at C7.