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| Content Provider | Springer Nature Link |
|---|---|
| Author | Chen, Chia Yu Lai, Chi Yung Kuo, Mei Hwa |
| Copyright Year | 2009 |
| Abstract | Effect of temperature on the growth of the primary endosymbiont Buchnera aphidicola in the cowpea aphid Aphis craccivora was studied by measuring quantitatively the copy number of 16S rDNA of this endosymbiont. A 1.5 kb segment of eubacterial 16S rDNA amplified by PCR from total DNA of Aphis craccivora was confirmed by RFLP analysis and sequence BLAST as that of Buchnera aphidicola. No secondary endosymbiont was detected in the aphid population studied. The relative levels of Buchnera ratio, quantified by real-time PCR, were higher in old nymphs than in young ones at temperatures between 10–30˚C, and this age-dependent difference was more pronounced at lower temperatures. Throughout the entire reproductive stage of Aphis craccivora, the relative levels of Buchnera ratio were higher at 10–25˚C than at 30˚C and 35˚C. A close relationship was found between these levels and the net reproductive rate (R $_{ 0 }$) of aphid, which was suppressed not only at 35˚C but also at 10˚C. The decoupling of Aphis craccivora and Buchnera response at low temperatures suggests that the cowpea aphid was more sensitive to low temperatures, while Buchnera was more sensitive to high temperatures. |
| Starting Page | 53 |
| Ending Page | 59 |
| Page Count | 7 |
| File Format | |
| ISSN | 03345114 |
| Journal | Symbiosis |
| Volume Number | 49 |
| Issue Number | 1 |
| e-ISSN | 18787665 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2009-10-31 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Buchnera aphidicola copy number quantification real-time PCR Ecology Plant Sciences Microbiology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Agricultural and Biological Sciences |
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