Table 2 Cry1Ab/2Aj protein content of corn pollen grains before and after passage through the digestive system of Propylea japonica larvae.

From: Ingestion of Bt corn pollen containing Cry1Ab/2Aj or Cry1Ac does not harm Propylea japonica larvae

Sample

Cry1Ab/2Aj concentration (μg/g dry weight)

No. of pollen grains per mg

Cry1Ab/2Aj content per grain (pg) a

Rate of Cry1Ab/2Aj protein loss (%) b

Fresh pollen

22.09 ± 2.74 (a1)

4300.84 ± 28.28 (b1)

5.14 ± 0.67 (c1)

23.21

Feces

8.49 ± 3.12 (a2)

2157.35 ± 14.65 (b2)

3.95 ± 1.48 (c2)

 
  1. Feces were collected from larvae that were fed SK12-5 corn pollen; n = 3.
  2. Values in columns 2 to 4 are means ± SE.
  3. aCalculated as follows: cx = ax/bx × 103.
  4. bCalculated as follows: RCry = (c1-c2)/c1 × 100.
Back to article page