Effects of the cultivation of genetically modified Bt crops on nontarget soil organisms - Microbial Ecology in Sustainable Agroecosystems - page 189

Table 8.6 Effects of the Cultivation of Bt Crops or Amendment with Bt Protein on Nematodes (continued)

Organism/activity
tested

Bt crop plant/
experimental variable Methodology Study location Protein Effect on organism(s) Source

Acrobeloides spp.
Pratylenchus spp.

Modified
Whitehead &
Hemming soil
extraction

Greenhouse Cultivation of Bt maize

(Events MEB307Bt,
MON810) and non- Bt
(Monumental) maize
in pots

Cry1Ab Significantly higher

populations under Bt
maize than non- Bt
maize

Griffiths et al.
(2006)

C. elegans Bioassays Field Cultivation of Bt and

non- Bt maize

Cry1Ab Negative effect of

Cry1Ab on growth,
egg number, and
reproduction of C.
elegans

Lang et al.
(2006)

Pratylenchus spp. Bioassays Field Cultivation of Bt and

non- Bt maize

Cry1Ab No effect of Bt maize

cultivation on
Pratylenchus spp.

Lang et al.
(2006)

Meloidogyne incognita Bioassays Laboratory Tomato transformed to

express Cry6A and
control transformed
with empty vector or
green fluorescent
protein

Cry6A Fourfold decrease in

M. incognita progeny
production in roots of
Bt tomato plants

Li, Wei, et al.
(2007)

M. incognita Bioassays Laboratory Tomato transformed to

express Cry5B and
control containing
empty vector

Cry5B Cry5B expression

reduced the number
of root galls and led
to a threefold
reduction in progeny
production

Li et al.
(2008)

(continued)