. 2010 Nov 10;155(1):222–235. doi: 10.1104/pp.110.160754

Table II. BGL-1 enzyme yield in transplastomic tobacco plants.

One unit of BGL-1 enzyme is defined as the amount of enzyme that released 1 μmol of p-nitrophenol from pNPG substrate under the assay conditions described in “Materials and Methods.” Enzyme yield per acre per year was determined using the following information: 1,5941.4 BGL-1 units per plant × 8,000 plants per acre × three cuttings per year = 382.59 million units per acre per year.

Enzyme	Leaf Age	No. of Leaves per Plant	Average Weight per Leaf	Units g⁻¹ in Leaf	Units		Whole Plant Yield	Units (Millions) per Acre per Cutting	Units (Millions) per Acre per Year
Enzyme	Leaf Age	No. of Leaves per Plant	Average Weight per Leaf	Units g⁻¹ in Leaf	Per Leaf	Per Age Group	Whole Plant Yield	Units (Millions) per Acre per Cutting	Units (Millions) per Acre per Year
			g				units
BGL-1	Young	5.7	7.1	9.24	65.6	373.92	1,5941.4	127.53	382.59
	Mature	14.2	16.5	44.41	732.77	10,405.33
	Old	8.2	14.9	42.25	629.53	5,126.15