Functional characterization of an anthocyanidin reductase gene from the fibers of upland cotton (Gossypium hirsutum)
Functional characterization of an anthocyanidin reductase gene from the fibers of upland cotton (Gossypium hirsutum)
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陆棉(Gossypium hirsutum)纤维花青素还原酶基因的功能特征
DOI:
10.1007/s00425-014-2238-4
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发表时间:
2015-01
期刊:
影响因子:
4.3
通讯作者:
Deyu Xie
中科院分区:
文献类型:
--
作者:
Yue Zhu;Haiyun Wang;Qingzhong Peng;Yuntao Tang;Guixian Xia;Jiahe Wu;Deyu Xie
Main conclusionMetabolic profiling, gene cloning, enzymatic analysis, ectopic expression, and gene silencing experiments demonstrate that the anthocyanidin reductase (ANR) pathway is involved in the biosynthesis of proanthocyanidins in upland cotton.Proanthocyanidins (PAs) are oligomeric or polymeric flavan-3-ols, however, the biosynthetic pathway of PAs in cotton remains to be elucidated. Here, we report on an anthocyanidin reductase (ANR) gene from cotton fibers and the ANR pathway of PAs. Phytochemical analysis demonstrated that leaves, stems, roots, and early developing fibers produced PAs and their monomers, including (−)-epicatechin, (−)-catechin, (−)-epigallocatechin, and (−)-gallocatechin. Crude PA extractions from different tissues were boiled in Butanol:HCl. Cyanidin, delphinidin, and pelargonidin were produced, indicating that cotton PAs include diverse extension unit structures. AnANRcDNA homolog (namedGhANR1) was cloned from developing fibers. The open reading frame, composed of 1,011 bp nucleotides, was expressed inE. colito obtain a recombinant protein. In the presence of NADPH, the recombinant enzyme catalyzed cyanidin, delphinidin, and pelargonidin to (−)-epicatechin and (−)-catechin, (−)-epigallocatechin and (−)-gallocatechin, and (−)-epiafzelechin and (−)-afzelechin, respectively. The ectopic expression ofGhANR11in anArabidopsisbanmutant allowed for the reconstruction of the ANR pathway and PA biosynthesis in the seed coat. Virus-induced gene silencing (VIGS) ofGhANR11led to a significant increase in anthocyanins and a decrease in the PAs, (−)-epicatechin, and (−)-catechin in the stems and leaves of VIGS-infected plants. Taken together, these data demonstrate that the ANR pathway contributes to the biosynthesis of flavan-3-ols and PAs in cotton.
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影响因子:
3.7
作者:
Pang J;Zhu Y;Li Q;Liu J;Tian Y;Liu Y;Wu J
通讯作者:
Wu J
影响因子:
3.7
作者:
Tan J;Wang M;Tu L;Nie Y;Lin Y;Zhang X
通讯作者:
Zhang X
DOI:
--
发表时间:
2003
期刊:
--
影响因子:
--
作者:
G. Tanner;K. Francki;S. Abrahams;J. Watson;P. Larkin;A. R. Ashton
通讯作者:
G. Tanner;K. Francki;S. Abrahams;J. Watson;P. Larkin;A. R. Ashton
DOI:
10.1107/s0907444909025013
发表时间:
2009-09-01
影响因子:
2.2
作者:
Gargouri, Mahmoud;Manigand, Claude;Gallois, Bernard
通讯作者:
Gallois, Bernard
DOI:
10.1016/b978-0-12-547150-3.50015-3
发表时间:
1989
期刊:
--
影响因子:
--
作者:
M. Ashburner
通讯作者:
M. Ashburner