The potato sugar transporter SWEET1g affects apoplasmic sugar ratio and phloem-mobile tuber- and flower-inducing signals
Angelique Lauschke, Leonie Maibaum, Mira Engel, Luise Eisengräber, Sina Bayer, Aleksandra Hackel, Christina Kühn · 2024
Read The potato sugar transporter SWEET1g affects apoplasmic sugar ratio and phloem-mobile tuber- and flower-inducing signals by Angelique Lauschke, Leonie Maibaum, Mira Engel, Luise Eisengräber, Sina Bayer, Aleksandra Hackel, Christina Kühn (2024) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-11663707.txt.
Description
Angelique Lauschke and co-authors study a sugar transporter in potato in a 2024 paper. Potatoes load sugar into their veins, the phloem, for travel to tubers and flowers. A family of carriers called SWEETs leaks sugars into the cell's outer space as a first step. One member, SWEET1g, moves glucose and physically partners with the main sucrose loader.
The team tested the carriers with glowing sugar stand-ins to see what each one moves. Blocking or boosting SWEET1g in engineered plants shifted when tubers formed and when plants flowered. Fluid drawn from the outer space of leaves showed a changed sugar mix, which altered how strongly sinks pulled in food. Dialing the gene down also shifted the signals that trigger tubers and blooms under long days. Sugar plumbing, it turns out, helps set the plant's calendar.
Catalog record
| CREATOR | Angelique Lauschke, Leonie Maibaum, Mira Engel, Luise Eisengräber, Sina Bayer, Aleksandra Hackel, Christina Kühn |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 69 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |