TABLE 2.

Lifetimes observed in PSI of Synechocystis and Synechococcus

	Energy-transfer components (ps)				Trapping (ps)
λex (nm)	Soret and Car to Qy	Within bulk Qy	Bulk to red	Red to bulk	Fast	Normal	Long-lived (ns)
Synechocystis monomers
400	0.8	–	5.5	–	–	24	4
500	0.7	–	5.4	–	–	22	5
650	–	0.4	5.4	–	–	22	5
700	–	–	–	1.0	9.4	22	15†
710	–	–	–	1.0	11*	23	7†
Synechocystis trimers
400	0.9	–	5.2	–	–	22	5
700	–	–	–	0.7	13	23	24†
710	–	–	–	0.7	11*	23	100†
Synechococcus trimers
400	0.2	–	4.3 and 8.7	–	–	35	5
650	–	–	3.4 and 10	–	–	38	5
710	–	–	10	0.7	–	33	6†
719	–	–	–	1.6	–	37	4†

^*Fixed value.

^†Minor amplitudes.