. 2012 May 29;109(24):9477–9482. doi: 10.1073/pnas.1200062109

Table 1.

Concentrations of intracellular and extracellular RAs and 4-oxo-RAs in cyanobacteria blooms collected from Taihu Lake, China

	Intracellular concentrations, ng/L						Extracellular concentrations, ng/L
Sampling sites	at-4-oxo-RA	13c-4-oxo-RA	9c-4-oxo-RA	atRA	13cRA	9cRA	at-4-oxo-RA	13c-4-oxo-RA	9c-4-oxo-RA	atRA	13cRA	9cRA
1	0.4	0.1	0.2	ND	ND	ND	ND	ND	ND	1.5	3.7	ND
2	0.2	0.1	0.1	ND	ND	ND	ND	ND	ND	1.9	1.9	ND
3	0.2	0.1	0.1	1.1	ND	ND	ND	ND	ND	1.5	5.8	3.2
4	0.1	0.2	0.1	ND	ND	ND	ND	ND	ND	1.0	ND	ND
5	0.2	ND	ND	0.8	0.3	ND	ND	ND	ND	1.5	0.7	1.7
6	2.2	0.4	0.7	7.2	3.6	ND	ND	ND	ND	1.4	4.3	ND
7	2.2	0.4	0.3	2.9	1.5	ND	ND	ND	ND	ND	ND	ND
8	2.8	0.7	0.6	6.3	1.4	ND	ND	ND	ND	2.6	4.5	ND
9	9.8	1.7	2.7	4.4 × 10	2.1 × 10	ND	ND	ND	ND	ND	ND	ND
10	2.1	0.2	0.5	6.4	3.2	ND	ND	ND	ND	1.0	0.8	0.7
11	2.2 × 10	4.5	4.7	9.0 × 10	3.7 × 10	ND	6.0	ND	1.0	5.9	4.6	2.3
12	1.3	0.2	0.4	7.6	2.0	ND	ND	ND	ND	ND	ND	ND
13	1.5	0.2	0.3	1.6 × 10	9.8	ND	2.0	ND	0.4	2.9	1.6	0.5
14	1.3	0.2	0.3	1.8 × 10	6.4	ND	ND	ND	ND	1.0	2.2	ND
15	1.7	0.2	0.2	2.5	1.4	ND	ND	ND	ND	3.3	2.0	2.3
16	3.6	0.5	0.9	1.9 × 10	6.0	ND	1.0	ND	0.4	ND	3.2	ND
17	2.1	0.3	0.6	1.2 × 10	6.8	ND	ND	ND	ND	0.7	1.0	ND
18	0.1	ND	ND	0.7	0.5	ND	ND	ND	ND	0.9	0.7	0.8
19	0.1	ND	ND	2.2	0.7	ND	ND	ND	ND	2.5	ND	ND
20	2.7	0.3	0.5	3.1 × 10	1.9 × 10	ND	0.6	ND	0.1	ND	ND	ND
21	2.7 × 10	ND	4.9	3.7 × 10	1.3 × 10	ND	2.0	ND	0.6	ND	ND	ND
22	1.6 × 10²	2.1 × 10	2.1 × 10	9.8 × 10	1.2 × 10²	ND	0.8	ND	0.2	ND	ND	ND
23	3.7	1.9	1.6	2.6 × 10	1.6 × 10	ND	ND	ND	ND	ND	ND	ND
24	6.0 × 10	1.5 × 10	1.1 × 10	2.2 × 10²	4.1 × 10	ND	1.1	ND	0.3	ND	ND	ND

ND, not detected.