The complete chloroplast genome sequence of the relict woody plant Metasequoia glyptostroboides Hu et Chengĭirectory of Open Access Journals (Sweden)įull Text Available Metasequoia glyptostroboides Hu et Cheng is the only species in the genus Metasequoia Miki ex Hu et Cheng, which belongs to the Cupressaceae family. All of the compounds were evaluated for cytotoxicity against five human tumor cell lines. Structures of the new compounds were determined by analysis of their spectroscopic data, and the absolute configuration of 7 was established by the modified Mosher method. Terpenoids and norlignans from Metasequoia glyptostroboides.ĭong, Liao-Bin He, Juan Wang, Yuan-Yuan Wu, Xing-De Deng, Xu Pan, Zheng-Hong Xu, Gang Peng, Li-Yan Zhao, Yu Li, Yan Gong, Xun Zhao, Qin-Shiįour new terpenoids, metaseglyptorin A (1), metasequoic acid C (2), 12α-hydroxy-8,15-isopimaradien-18-oic acid (3), and (-)-acora-2,4(14),8-trien-15-oic acid (4), and three new norlignans, metasequirins D-F (5-7), were isolated from Metasequoia glyptostroboides, together with 15 known compounds.
METASEQUOIA LE 2.4 FREE
This study is the first to report the free radical scavenging capacity, antioxidant activity, and proanthocyanidin composition of the bark of M. glyptostroboides are used as antimicrobic, analgesic, and anti-inflammatory drug for dermatic diseases. In the Chinese folk medicine, the leaves and bark of M.
Metasequoia glyptostroboides Hu et Cheng is the only living species in the genus Metasequoia Miki ex Hu et Cheng (Taxodiaceae), which is well known as a “living fossil†species. This is the first large-scale expressed sequence tags ever generated in Metasequoia and the first evidence for floral genes in this critically endangered deciduous conifer species.Īntioxidant Capacity and Proanthocyanidin Composition of the Bark of Metasequoia glyptostroboidesĬhen, Fengyang Zhang, Lin Zong, Shuling Xu, Shifang Li, Xiaoyu Ye, Yiping Furthermore, a set of PUTs differentially expressed in vegetative and reproductive buds, as well as SSR motifs and high confidence SNPs, were identified. A total of 59 known floral gene families and 190 isotigs involved in hormone regulation were captured in the dataset. The 97,565 PUTs that were at least 100 bp in length were functionally annotated by a similarity search against public databases and assigned with Gene Ontology (GO) terms. These EST reads were clustered and assembled into 114,124 putative unique transcripts (PUTs) with an average length of 536 bp. By using the 454 pyrosequencing technology, a total of 1,571,764 high-quality reads were generated, among which 733,128 were from vegetative buds and 775,636 were from female buds. In order to gain insight into the molecular mechanisms behind the formation of reproductive buds and the transition from vegetative phase to reproductive phase in Metasequoia, we performed sequencing of expressed sequence tags from Metasequoia vegetative buds and female buds. Despite its paleontological significance and economical value as a rare relict species, genomic resources of Metasequoia are very limited. The "living fossil" Metasequoia glyptostroboides Hu et Cheng, commonly known as dawn redwood or Chinese redwood, is the only living species in the genus and is valued for its essential oil and crude extracts that have great potential for anti-fungal activity.
Zhao, Ying Thammannagowda, Shivegowda Staton, Margaret Tang, Sha Xia, Xinli Yin, Weilun Liang, Haiying An EST dataset for Metasequoia glyptostroboides buds: the first EST resource for molecular genomics studies in Metasequoia.
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