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- W2357637036 abstract "Effects of elevated CO2(750 μl/L) on the size,enzyme activity of Bemisia tabaci biotype B fed on two types of transgenic Bt cotton(GK-12) and nontransgenic cotton(S3) were conducted for three successive generations.The host selection behavior and oviposition in the third generation of B.tabaci biotype B were also investigated in Open-top chambers(OTC).The results showed that the sizes of egg,pupa,adult of both sex were not influenced by CO2 level and cotton variety for the B.tabaci in the second and third generations.However,the length of pupa,both sex adult and the unfolded wing of female were significantly reduced in the first generation of B.tabaci grown under the elevated CO2.Compared with that on ambient level of CO2,the length of pupa,the length of adult female,and the unfolded wing of adult female B.tabaci fed on nontransgenic cotton(S3) grown in elevated CO2 were reduced 2.81%,2.95% and 0.94%,respectively.Similarly,the the unfolded wing of female and the length of adult male were reduced 2.08% and 2.58% for the the B.tabaci fed on GK-12 grown in elevated CO2 compared with that on ambient level of CO2.Furthermore,several important enzyme activities were analyzed in detailed.The Glutathione Stransferase(GSTs) activity was increased by 45.73% when B.tabaci was fed on GK-12 grown in elevated CO2 in the third generation and the Acetylcholinesterase(AchE) activity was increased by 27.68% when B.tabaci was fed on S3 grown under elevated CO2 in first generation.However,the GSTs activity was reduced by 35.12% when the B.tabaci was fed on GK-12 grown in ambient CO2 in first generation whereas the AchE was elevated by 30.28%.The activity of Carboxylic Esterhydrolase(CarE) was not significantly difference in the B.tabaci fed on the four treated cotton above.Furthermore,ANOVA analyses of CO2,cotton variety and their interactions on above three enzymes suggested that the three enzymes affected by the level CO2,GSTs activity was only affected by the cotton variety,AchE activity was affected significantly in generations,CO2 ×generation interactions,and CO2×variety×generation interactions.The CarE activity among three generations was not affected by the three factors.More adult numbers of B.tabaci were observed for preference to cottons grown in elevated CO2 than in ambient CO2.The numbers of B.tabai that fed on cottons grown in ambient CO2 which preferred to cottons grown in elevated CO2 were increased 9.175%,19.89%,27.93% compared with that fed on S3 grown in elevated CO2,and GK-12 and S3 grown in ambient CO2.Furthermore,the numbers of B.tabai that fed on cottons grown in elevated CO2 which preferred to cottons grown in elevated CO2 were increased 12.56%,21.05%,28.73% compared with that fed on S3 grown in elevated CO2,and GK-12 and S3 grown in ambient CO2.The number of eggs laid after 72 h that the B.tabaci fed on both GK-12 and S3 grown in elevated CO2 were increased 24.55% and 19.03% respectively compared to that grown in ambient CO2.Moreover,the egg numbers of B.tabaci that fed on KG-12 cotton grown in elevated CO2 in F3 generation were increased 26.93% compared to that in ambient CO2.The difference between these two treatments was highly significant.Our data indicated that the size,enzyme activity and host selection behaviorof B.tabaci biotype B can be changed under elevated CO2 in the future." @default.
- W2357637036 created "2016-06-24" @default.
- W2357637036 creator A5053810460 @default.
- W2357637036 date "2011-01-01" @default.
- W2357637036 modified "2023-09-24" @default.
- W2357637036 title "Effect of elevated CO_2 on the body size,enzyme activity and host selection behavior of Bemisia tabaci biotype B" @default.
- W2357637036 hasPublicationYear "2011" @default.
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