文献类型：期刊文献

英文题名：Climatic responses and variability in bark anatomical traits of 23 Picea species

作者：Nie, Wen[1] Dong, Yao[1] Liu, Yifu[1] Tan, Cancan[1] Wang, Ya[2] Yuan, Yanchao[1] Ma, Jianwei[3] An, Sanping[3] Liu, Jianfeng[2] Xiao, Wenfa[1] Jiang, Zeping[1] Jia, Zirui[2] Wang, Junhui[2]

第一作者：Nie, Wen

通信作者：Jia, ZR[1];Wang, JH[1]

机构：[1]Chinese Acad Forestry, Ecol & Nat Conservat Inst, Key Lab Forest Ecol & Environm Natl Forestry & Gra, Beijing, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, State Key Lab Tree Genet & Breeding, Beijing, Peoples R China;[3]Gansu Prov Key Lab Secondary Forest Cultivat, Res Inst Forestry Xiaolong Mt, Tianshui, Peoples R China

年份：2023

卷号：14

外文期刊名：FRONTIERS IN PLANT SCIENCE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001039820600001)】；

基金：This study was supported by the National Promotion Project of Forestry and Grassland Achievements (2020133110) and the National Natural Science Foundation of China (31500540).

语种：英文

外文关键词：bark anatomical traits; climatic response; global distribution; phylogenetic signal; Picea

摘要：In woody plants, bark is an important protective tissue which can participate in photosynthesis, manage water loss, and transport assimilates. Studying the bark anatomical traits can provide insight into plant environmental adaptation strategies. However, a systematic understanding of the variability in bark anatomical traits and their drivers is lacking in woody plants. In this study, the bark anatomical traits of 23 Picea species were determined in a common garden experiment. We analyzed interspecific differences and interpreted the patterns in bark anatomical traits in relation to phylogenetic relationships and climatic factors of each species according to its global distribution. The results showed that there were interspecific differences in bark anatomical traits of Picea species. Phloem thickness was positively correlated with parenchyma cell size, possibly related to the roles of parenchyma cells in the radial transport of assimilates. Sieve cell size was negatively correlated with the radial diameter of resin ducts, and differences in sieve cells were possibly related to the formation and expansion of resin ducts. There were no significant phylogenetic signals for any bark anatomical trait, except the tangential diameter of resin ducts. Phloem thickness and parenchyma cell size were affected by temperature-related factors of their native range, while sieve cell size was influenced by precipitation-related factors. Bark anatomical traits were not significantly different under wet and dry climates. This study makes an important contribution to our understanding of variability in bark anatomical traits among Picea species and their ecological adaptations.