Turanose Explained

Turanose is a reducing disaccharide. The -isomer is naturally occurring. Its systematic name is α--glucopyranosyl-(1→3)-α--fructofuranose. It is an analog of sucrose not metabolized by higher plants, but rather acquired through the action of sucrose transporters for intracellular carbohydrate signaling. In addition to its involvement in signal transduction, -(+)-turanose can also be used as a carbon source by many organisms including numerous species of bacteria and fungi.^{[1] [2] [3] [4] [5]}

Notes and References

1. Sinha, A.K.. Metabolizable and non-metabolizable sugars activate different signal transduction pathways in tomato . Plant Physiol . 128 . 1480–1489 . 2002 . 10.1104/pp.010771 . 11950996 . 4 . 154275. etal.
2. Gonzali, S.. A turanose-insensitive mutant suggests a role for WOX5 in auxin homeostasis in Arabidopsis thaliana . Plant J . 44 . 633–645 . 2005 . 10.1111/j.1365-313X.2005.02555.x . 16262712 . 4. etal. free .
3. Sivitz, A.B.. Arabidopsis sucrose transporter AtSUC9. High-affinity transport activity, intragenic control of expression, and early flowering mutant phenotype . Plant Physiol . 143 . 188–198 . 2007 . 10.1104/pp.106.089003 . 17098854 . 1 . 1761979. etal.
4. Loreti, E.. Glucose and disaccharide-sensing mechanisms modulate the expression of α-amylase in barley embryos . Plant Physiol . 123 . 939–948 . 2000 . 10.1104/pp.123.3.939 . 10889242 . 3 . 59056. etal.
5. http://www.sigmaaldrich.com/catalog/search/ProductDetail/SIGMA/T2754 D-Turanose