文献类型：期刊文献

英文题名：Preservation status and microbial community of waterlogged archaeological woods over 7800 years old at the Jingtoushan Site, China

作者：Lu, Yang[1,2] Jiao, Lichao[1,2] Sun, Guoping[3] Wang, Jie[1,2] Liu, Shoujia[1,2] Li, Ren[1,2] Zhang, Yonggang[1,2] Guo, Yu[1,2] Guo, Juan[1,2] Jiang, Xiaomei[1,2] Yin, Yafang[1,2]

第一作者：卢芸;Lu, Yang

通信作者：Jiao, LC[1];Jiao, LC[2]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[2]Natl Forestry & Grassland Adm, Wood Specimen Resource Ctr WOODPEDIA, Beijing 100091, Peoples R China;[3]Zhejiang Prov Inst Cultural Rel & Archaeol, Hangzhou 310014, Peoples R China

年份：2023

卷号：57

期号：2

起止页码：537-556

外文期刊名：WOOD SCIENCE AND TECHNOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000942700300001)】；

基金：This study was supported by the Fundamental Research Funds of the Chinese Academy of Forestry (Grant No. CAFYBB2021QB003) and the National Key Research and Development Program of China (Grant No. 2020YFC1521801). We would like to express our gratitude to the Zhejiang Provincial Institute of Antiquity and Archaeology for their help with sample collection.

语种：英文

外文关键词：Bacteria - Cellulose - Wood

摘要：The Jingtoushan Site (8300-7800 BP), located in Ningbo City, Zhejiang Province, is of great value for the in-depth understanding of China's prehistoric coastal culture. At this site, numerous valuable wooden relics showing past human civilization have been discovered. Multiple approaches were taken, including wood anatomy and physicochemical analyses, to assess the preservation state of waterlogged archaeological woods (WAWs), while using high-throughput sequencing (HTS) to explore their microbial diversity and composition as well as that of the surrounding soil. The secondary walls of WAWs showed to be severely degraded, whereas the compound middle layer and cell corner were well preserved. Bacteria were the main microorganisms causing the biodegradation of WAWs, and 85.6% of the phyla was also found in the surrounding soil environment. Specifically, Arcobacter, Flavobacterium, Hyphomicrobium, Pseudomonas and Sphingomonas, bacteria retrieved by HTS in high abundance, were inferred to be potentially associated with the biodegradation of WAWs at the Jingtoushan Site. Meanwhile, it is hypothesized that lignin in the wooden artefacts still buried and unexcavated at the Site might be at risk of further degradation, although it may be better preserved than the cellulose and hemicellulose.