TABLE 3.

Cells with PHA as a percent^a of total cells following growth on different carbon sources

Substrate(s) (no. of C atoms)	% Cells with PHA
	B. megaterium	P. oleovoransb	P. putida GPp104(pSUP104)c	P. putida GPp104(pGM107)d	P. putida GPp104(pDR1)e
LB	100	0	0	90	0
LB–1% glucose	100	0	0	92	0
M9–12 mM caproate (6)	No growth	88	0	100f	0
M9–12 mM octanoate (8)	No growth	90	0	92	0

^a100%, PHA in all cells; 0%, no PHA in any cell; data averaged from more than five fields of each of three different cultures; error <5%. 

^bPositive control. 

^cNegative control, vector only. 

^dphaPⁿQRBC (n indicates presence of N terminus only). 

^ephaC. 

^fCell shape distorted by large quantity of PHA.