TABLE 2.

Results of testing the effects of three DNA extraction methods on DNA yields from P. putida cells, B. globigii endospores, and F. moniliforme conidia^a

Organism	Probabilityb
	70°C incubation in TEN buffer	Three freeze-thaw cycles	Bead mill homogenization
P. putida	0.002	0.029	0.047
B. globigii prepn 93	NSD	NSD	0.0001
B. globigii prepn 95	NSD	NSD	0.0001
F. moniliforme	NSD	NSD	0.0002

^aThe three DNA extraction methods were described in detail in Materials and Methods. Data were analyzed by using indicator variables in the general linear model as described in the text. 

^bProbability of a greater F value (P values) when testing whether the extraction procedure had an effect on the DNA yields as described by SAS type III sums of squares. P values greater than 0.05 were considered significant. NSD, values that were not significantly different (P values of 0.18 to 0.95).