[Effects of transgenic corn expressing Bacillus thuringiensis cry1Ab toxin on population increase of Rhopalosiphum maidis Fitch].
A laboratory study was made on the effects of transgenic corn expressing cry1Ab toxin from the bacterium Bacillus thuringiensis (Bt) on the life table of an experimental population of corn leaf aphid Rhopalosiphum maidis Fitch. The results showed that no obvious negative effects of two Bt corn hybrids DK647BTY (event MON810) and NX4777 (event Bt11) were observed on the net reproductive rate, average generation time, innate capacity for increase, and finite rate of increase of R. maidis, and there were no significant differences in the rate of alate, mortality of nymph, and longevity and fecundity duration of corn leaf aphid when feeding on Bt and non-Bt corn hybrids, suggesting that Bt corn expressing cry1Ab toxin had no side-effects on the development and reproduction of R. maidis.
Li
Li-li
LL
State Key Laboratory for the Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100094, China. wl3pq@sohu.com
Wang
Zhen-ying
ZY
He
Kang-lai
KL
Bai
Shu-xiong
SX
Hua
Lei
L
D000818:Animals; D001042:Aphids / Q000254:growth & development / Q000502:physiology*; D001413:Bacillus thuringiensis / Q000235:genetics; D000083722:Bacillus thuringiensis Toxins; D001426:Bacterial Proteins / Q000096:biosynthesis / Q000235:genetics*; D001427:Bacterial Toxins / Q000096:biosynthesis / Q000235:genetics*; D004731:Endotoxins / Q000096:biosynthesis / Q000235:genetics*; D006460:Hemolysin Proteins / Q000096:biosynthesis / Q000235:genetics*; D010572:Pest Control, Biological; D030821:Plants, Genetically Modified; D011157:Population Dynamics; D003313:Zea mays / Q000235:genetics* / Q000469:parasitology
D000083722:Bacillus thuringiensis Toxins; D001426:Bacterial Proteins; D001427:Bacterial Toxins; D004731:Endotoxins; D006460:Hemolysin Proteins; C030956:insecticidal crystal protein, Bacillus Thuringiensis