Rates of Water Loss and Uptake in Recalcitrant Fruits of Quercus Species Are Determined by Pericarp Anatomy
文献类型：期刊论文
| 作者 | Xia, Ke1,2; Daws, Matthew I.3,4; Stuppy, Wolfgang4; Zhou, Zhe-Kun1,5 ; Pritchard, Hugh W.2,4
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| 刊名 | PLOS ONE
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| 出版日期 | 2012-10-11 |
| 卷号 | 7期号:10页码:e47368 |
| 关键词 | DESICCATION-TOLERANCE ROBUR L SEEDS STORAGE CONSERVATION ACORNS |
| ISSN号 | 1932-6203 |
| 通讯作者 | Zhou, ZK (reprint author), Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming, Peoples R China.,zhouzk@mail.kib.ac.cn ; h.pritchard@kew.org |
| 英文摘要 | Desiccation-sensitive recalcitrant seeds and fruits are killed by the loss of even moderate quantities of water. Consequently, minimizing the rate of water loss may be an important ecological factor and evolutionary driver by reducing the risk of mortality during post-dispersal dry-spells. For recalcitrant fruits of a range of Quercus species, prolonged drying times have been observed previously. However, the underlying mechanism(s) for this variation is unknown. Using nine Quercus species we investigated the major route(s) of water flow into and out of the fruits and analysed the relative importance of the different pericarp components and their anatomy on water uptake/loss. During imbibition (rehydration), the surface area of the cupule scar and the frequency and area of the vascular bundles contained therein were significantly correlated with the rates of water uptake across the scar. The vascular bundles serving the apex of the fruit were a minor contributor to overall water. Further, the rate of water uptake across the remainder of the pericarp surface was significantly correlated with the thickness of the vascularised inner layer in the pericarp. Fruits of Q. franchetii and Q. schottkyana dried most slowly and had a comparatively small scar surface area with few vascular bundles per unit area. These species inhabit drier regions than the other species studied, suggesting these anatomical features may have ecological value by reducing the risk of desiccation stress. However, this remains to be tested in the field. |
| 学科主题 | Multidisciplinary Sciences |
| 类目[WOS] | Multidisciplinary Sciences |
| 研究领域[WOS] | Science & Technology - Other Topics |
| 关键词[WOS] | DESICCATION-TOLERANCE ; ROBUR L ; SEEDS ; STORAGE ; CONSERVATION ; ACORNS |
| 收录类别 | SCI |
| 资助信息 | Millennium Seed Bank Project of the Royal Botanic Gardens, Kew, UK; National Natural Science Foundation of China [31200318, 41030212]; Fund for Applied Basic Research of Yunnan Province, China [2008CD165]; Running Cost Funding of CAS Large-scale Scientific Facility for Germplasm Bank of Wild Species, KIB, CAS, China |
| 语种 | 英语 |
| WOS记录号 | WOS:000309807700077 |
| 公开日期 | 2013-01-22 |
| 源URL | [http://ir.kib.ac.cn/handle/151853/15978]  |
| 专题 | 昆明植物研究所_中国科学院东亚植物多样性与生物地理学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming, Peoples R China 2.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Kunming, Peoples R China 3.ALCOA Australia Proprietary Ltd, Pinjarra, WA, Australia 4.Royal Bot Gardens, Seed Conservat Dept, Richmond, England 5.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Mengla, Yunnan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xia, Ke,Daws, Matthew I.,Stuppy, Wolfgang,et al. Rates of Water Loss and Uptake in Recalcitrant Fruits of Quercus Species Are Determined by Pericarp Anatomy[J]. PLOS ONE,2012,7(10):e47368. |
| APA | Xia, Ke,Daws, Matthew I.,Stuppy, Wolfgang,Zhou, Zhe-Kun,&Pritchard, Hugh W..(2012).Rates of Water Loss and Uptake in Recalcitrant Fruits of Quercus Species Are Determined by Pericarp Anatomy.PLOS ONE,7(10),e47368. |
| MLA | Xia, Ke,et al."Rates of Water Loss and Uptake in Recalcitrant Fruits of Quercus Species Are Determined by Pericarp Anatomy".PLOS ONE 7.10(2012):e47368. |
入库方式： OAI收割
来源：昆明植物研究所
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