Abstract
The activities of three detoxification enzymes (α-naphthyl acetate esterase, acetylcholinesterase and glutathione-S-transferase), two protective enzymes (superoxide dismutase and catalase) and midgut proteases (total protease, trypsin-like enzyme and chymotrypsin-like enzyme) in 3rd instar larvae of the Asian corn borer, Ostrinia furnacalis after feeding on Bt-transgenic corn were evaluated in the laboratory. The results showed that the activities of α-naphthylacetate esterase, glutathione-S-transferase in the larvae fed on Bt corn leaf for 48 h were greatly lower than that of the control fed on the non-transgenic corn. However, the acetylcholinesterase activity of the larvae fed on Bt corn for 48 h, 60 h and 72 h increased markedly, being 2.00-, 1.50- and 2.50-fold higher than that of the control, respectively. The activities of protective enzymes, total protease, weak trypsin-like enzyme and chymotrypsin-like enzyme in the larvae fed on Bt corn for 48 h were also significantly lower than that of the control. However, the activities of the active alkaline trypsin-like enzyme were obviously higher than those of the control. The active alkaline trypsin-like enzyme activities of the larvae fed on Bt corn for 48 h, 60 h and 72 h were 4.00-, 1.67- and 1.33-fold higher than that of the control. The results suggest that acetylcholinesterase and active alkaline trypsin-like enzyme may be associated with Asian corn borer resistance to Bt.
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Claims 10
Claim · model-written summary
Activities of alpha-naphthyl acetate esterase and glutathione-S-transferase in Asian corn borer larvae fed Bt corn leaf for 48 h were greatly lower than in controls fed non-transgenic corn.
- Taxon
- Bt corne0
- Treatment
- fed on Bt corn leafe0
- Interactor
- Asian corn borer
Ostrinia furnacalist0pest - Outcome
- activities of α-naphthylacetate esterase, glutathione-S-transferasee0
- Direction
- lowere0
- Qualifier
- 48 he0
- Comparator
- control fed on the non-transgenic corne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the activities of α-naphthylacetate esterase, glutathione-S-transferase in the larvae fed on Bt corn leaf for 48 h were greatly lower than that of the control fed on the non-transgenic corn”
t0“Asian corn borer, Ostrinia furnacalis”
Claim · model-written summary
Acetylcholinesterase activity in larvae fed Bt corn for 48 h was 2.00-fold higher than in the control.
- Taxon
- Bt corne0
- Treatment
- fed on Bt corne0
- Interactor
- Asian corn borerOstrinia furnacalist0pest
- Outcome
- acetylcholinesterase activitye0
- Direction
- increasede0
- Value
- 2.00-e0
- Qualifier
- 48 he0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the acetylcholinesterase activity of the larvae fed on Bt corn for 48 h, 60 h and 72 h increased markedly, being 2.00-, 1.50- and 2.50-fold higher than that of the control, respectively”
t0“Asian corn borer, Ostrinia furnacalis”
Claim · model-written summary
Acetylcholinesterase activity in larvae fed Bt corn for 60 h was 1.50-fold higher than in the control.
- Taxon
- Bt corne0
- Treatment
- fed on Bt corne0
- Interactor
- Asian corn borerOstrinia furnacalist0pest
- Outcome
- acetylcholinesterase activitye0
- Direction
- increasede0
- Value
- 1.50-e0
- Qualifier
- 60 he0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the acetylcholinesterase activity of the larvae fed on Bt corn for 48 h, 60 h and 72 h increased markedly, being 2.00-, 1.50- and 2.50-fold higher than that of the control, respectively”
t0“Asian corn borer, Ostrinia furnacalis”
Claim · model-written summary
Acetylcholinesterase activity in larvae fed Bt corn for 72 h was 2.50-fold higher than in the control.
- Taxon
- Bt corne0
- Treatment
- fed on Bt corne0
- Interactor
- Asian corn borerOstrinia furnacalist0pest
- Outcome
- acetylcholinesterase activitye0
- Direction
- increasede0
- Value
- 2.50-e0
- Qualifier
- 72 he0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the acetylcholinesterase activity of the larvae fed on Bt corn for 48 h, 60 h and 72 h increased markedly, being 2.00-, 1.50- and 2.50-fold higher than that of the control, respectively”
t0“Asian corn borer, Ostrinia furnacalis”
Claim · model-written summary
Activities of protective enzymes and total protease in larvae fed Bt corn for 48 h were significantly lower than in the control.
- Taxon
- Bt corne0
- Treatment
- fed on Bt corne0
- Interactor
- Asian corn borerOstrinia furnacalist0pest
- Outcome
- activities of protective enzymes, total proteasee0
- Direction
- lowere0
- Qualifier
- 48 he0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of protective enzymes, total protease, weak trypsin-like enzyme and chymotrypsin-like enzyme in the larvae fed on Bt corn for 48 h were also significantly lower than that of the control”
t0“Asian corn borer, Ostrinia furnacalis”
Claim · model-written summary
Activities of weak trypsin-like enzyme and chymotrypsin-like enzyme in larvae fed Bt corn for 48 h were significantly lower than in the control.
- Taxon
- Bt corne0
- Treatment
- fed on Bt corne0
- Interactor
- Asian corn borerOstrinia furnacalist0pest
- Outcome
- weak trypsin-like enzyme and chymotrypsin-like enzymee0
- Direction
- lowere0
- Qualifier
- 48 he0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of protective enzymes, total protease, weak trypsin-like enzyme and chymotrypsin-like enzyme in the larvae fed on Bt corn for 48 h were also significantly lower than that of the control”
t0“Asian corn borer, Ostrinia furnacalis”
Claim · model-written summary
Active alkaline trypsin-like enzyme activity in larvae fed Bt corn for 48 h was 4.00-fold higher than in the control.
- Taxon
- Bt corne0
- Treatment
- fed on Bt corne0
- Interactor
- Asian corn borerOstrinia furnacalist0pest
- Outcome
- active alkaline trypsin-like enzyme activitiese0
- Direction
- highere0
- Value
- 4.00-e0
- Qualifier
- 48 he0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The active alkaline trypsin-like enzyme activities of the larvae fed on Bt corn for 48 h, 60 h and 72 h were 4.00-, 1.67- and 1.33-fold higher than that of the control”
t0“Asian corn borer, Ostrinia furnacalis”
Claim · model-written summary
Active alkaline trypsin-like enzyme activity in larvae fed Bt corn for 60 h was 1.67-fold higher than in the control.
- Taxon
- Bt corne0
- Treatment
- fed on Bt corne0
- Interactor
- Asian corn borerOstrinia furnacalist0pest
- Outcome
- active alkaline trypsin-like enzyme activitiese0
- Direction
- highere0
- Value
- 1.67-e0
- Qualifier
- 60 he0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The active alkaline trypsin-like enzyme activities of the larvae fed on Bt corn for 48 h, 60 h and 72 h were 4.00-, 1.67- and 1.33-fold higher than that of the control”
t0“Asian corn borer, Ostrinia furnacalis”
Claim · model-written summary
Active alkaline trypsin-like enzyme activity in larvae fed Bt corn for 72 h was 1.33-fold higher than in the control.
- Taxon
- Bt corne0
- Treatment
- fed on Bt corne0
- Interactor
- Asian corn borerOstrinia furnacalist0pest
- Outcome
- active alkaline trypsin-like enzyme activitiese0
- Direction
- highere0
- Value
- 1.33-e0
- Qualifier
- 72 he0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The active alkaline trypsin-like enzyme activities of the larvae fed on Bt corn for 48 h, 60 h and 72 h were 4.00-, 1.67- and 1.33-fold higher than that of the control”
t0“Asian corn borer, Ostrinia furnacalis”
Claim · model-written summary
The authors suggest acetylcholinesterase and active alkaline trypsin-like enzyme may be associated with Asian corn borer resistance to Bt.
- Taxon
- Asian corn borerOstrinia furnacalise0
- Gene
- acetylcholinesterase and active alkaline trypsin-like enzymee0
- Outcome
- resistance to Bte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“acetylcholinesterase and active alkaline trypsin-like enzyme may be associated with Asian corn borer resistance to Bt”
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See all 6 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.