Effects of Age and Size on Xylem Phenology in Two Conifers of Northwestern China
文献类型：期刊论文
| 作者 | Zeng, Qiao1,2; Rossi, Sergio3,4; Yang, Bao1 |
| 刊名 | FRONTIERS IN PLANT SCIENCE
 |
| 出版日期 | 2018-01-12 |
| 卷号 | 8页码:9 |
| ISSN号 | 1664-462X |
| 关键词 | cambium activity cell differentiation Juniperus przewalskii Pinus tabulaeformis radial growth wood anatomy xylogenesis |
| DOI | 10.3389/fpls.2017.02264 |
| 通讯作者 | Yang, Bao(yangbao@lzb.ac.cn) |
| 英文摘要 | The climatic signals that directly affect the trees can be registered by xylem during its growth. If the timings and duration of xylem formation change, xylogenesis can occur under different environmental conditions and subsequently be subject to different climatic signals. An experimental design was applied in the field to disentangle the effects of age and size on xylem phenology, and it challenges the hypothesis that the timings and dynamics of xylem growth are size-dependent. Intra-annual dynamics of xylem formation were monitored weekly during the growing seasons 2013 and 2014 in Chinese pine (Pinus tabulaeformis) and Qilian juniper (Juniperus przewalskii) with different sizes and ages in a semi-arid region of northwestern China. Cell differentiation started 3 weeks earlier in 2013 and terminated 1 week later in 2014 in small-young pines than in big-old pines. However, differences in the timings of growth reactivation disappeared when comparing the junipers with different sizes but similar age. Overall, 77 days were required for xylem differentiation to take place, but timings were shorter for older trees, which also exhibited smaller cell production. Results from this study suggest that tree age does play an important role in timings and duration of growth. The effect of age should also be considered to perform reliable responses of trees to climate. |
| 收录类别 | SCI |
| WOS关键词 | PINUS-HALEPENSIS ; CAMBIAL ACTIVITY ; TIBETAN PLATEAU ; GROWTH ; TREES ; XYLOGENESIS ; CLIMATE ; WOOD ; PRECIPITATION ; PRODUCTIVITY |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| 语种 | 英语 |
| 出版者 | FRONTIERS MEDIA SA |
| WOS记录号 | WOS:000419867700001 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558058 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Yang, Bao |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Univ Quebec Chicoutimi, Dept Sci Fondamentales, Chicoutimi, PQ, Canada 4.Chinese Acad Sci, South China Bot Garden, Guangdong Prov Key Lab Appl Bot, Key Lab Vegetat Restorat & Management Degraded Ec, Guangzhou, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeng, Qiao,Rossi, Sergio,Yang, Bao. Effects of Age and Size on Xylem Phenology in Two Conifers of Northwestern China[J]. FRONTIERS IN PLANT SCIENCE,2018,8:9. |
| APA | Zeng, Qiao,Rossi, Sergio,&Yang, Bao.(2018).Effects of Age and Size on Xylem Phenology in Two Conifers of Northwestern China.FRONTIERS IN PLANT SCIENCE,8,9. |
| MLA | Zeng, Qiao,et al."Effects of Age and Size on Xylem Phenology in Two Conifers of Northwestern China".FRONTIERS IN PLANT SCIENCE 8(2018):9. |
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来源：寒区旱区环境与工程研究所
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