TABLE 2.

Summary of number of OTUs detected at DNA and RNA levels by DGGE

Expt no.	No. of OTUsa
	T0		Dark		PAR		PAR-UVA		PAR-UVA-UVB
	DNA	RNA	DNA	RNA	DNA	RNA	DNA	RNA	DNA	RNA
1	16	16	16	16	15	16	15	16	14	16
2	14	20	14	20	14	20	14	20	14	20
3	23	24	23	24	23	24	23	24	23	24
4	24	25	24	25	24	25	24	25	24	25
5	20	26	20	26	20	26	19	25	19	25
6	21	26	21	26	21	26	21	26	21	26
7	35	35	35	35	35	35	35	35	35	35
8	34	34	34	34	34	34	33	33	33	33
9	33	30	33	30	33	30	32	28	32	28

^aThe number of OTUs is given for the end of the preexposure incubation held in the dark (T₀) and after exposure to the different radiation regimes. The corresponding exposure periods and the radiation intensities are given in Table 1.