Table 4. Developmental accumulation of squalene in field-grown plants.

Construct	Plant	Leaf development	Squalene (μg/g fw)
Constitutive	# 10	Young (4th)	91.8
SQS + FPS		Developing (7th)	235.1
plastidic		Mature (9th)	349.4
		Senescing (11th)	51.1
	# 21	Young (2nd)	nd
		Developing (5th)	83.7
		Maturing (8th)	163.3
		Mature (11th)	219.5
		Senescing	263.2

Leaves at various positions of two plants within line 42 were sampled for their squalene levels. Plants were grown for 60 days in the field and appeared visually comparable to one another. nd not detected, below detection limit of 0.5 μg/g fw