The biosynthesis of allelopathic di-C-glycosylflavones from the roots of Desmodium incanum (G. Mey.) DC.
The biosynthesis of allelopathic di-C-glycosylflavones from the roots of Desmodium incanum (G. Mey.) DC.
复制标题
从 Desmodium incanum (G. Mey.) DC 根部生物合成化感作用的二 C-糖基黄酮。
DOI:
10.1039/c5ob01926e
复制
发表时间:
2015
影响因子:
3.2
通讯作者:
Hao B
中科院分区:
文献类型:
--
作者:
Hao B
The allelopathic root exudate of the drought-tolerant subsistence cereal intercrop D. incanum, protecting against the parasitic weed Striga hermonthica, comprises a number of di-C-glycosylflavones specifically containing C-glucosyl, C-galactosyl and C-arabinosyl moieties. Here we demonstrate that the biosynthesis of all compounds containing a C-glucose involves C-glucosylation of 2-hydroxynaringenin with subsequent C-galactosylation, C-glucosylation or C-arabinosylation. In addition, the crude soluble enzyme extract converts two fluorinated 2-hydroxyflavanone analogues to corresponding mono- and di-C-glycosylflavones demonstrating that some differences in C-ring substitution can be tolerated by the plant enzymes. Elucidating the biosynthesis of these C-glycosylflavones (CGFs) has the potential to open up opportunities for transferring the enzymic and genetic basis for the S. hermonthica inhibiting allelopathic trait to food crop plants.
登录
查看更多内容
影响因子:
2.3
作者:
Khan, ZR;Hassanali, A;Woodcock, CM
通讯作者:
Woodcock, CM
影响因子:
2.8
作者:
C. Midega;J. Pittchar;D. Salifu;J. Pickett;Z. Khan
通讯作者:
Z. Khan
影响因子:
5.8
作者:
Midega, Charles A. O.;Bruce, Toby J. A.;Khan, Zeyaur R.
通讯作者:
Khan, Zeyaur R.
影响因子:
2.8
作者:
Khan, Zeyaur R.;Amudavi, David M.;Pickett, John A.
通讯作者:
Pickett, John A.
DOI:
--
发表时间:
1973
期刊:
Biochimica et Biophysica Acta
影响因子:
--
作者:
J. W. Wallace;H. Grisebach
通讯作者:
H. Grisebach