Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s00425-011-1475-z |
Passive water control at the surface of a superhydrophobic lichen | |
Hamlett, Christopher A. E.1; Shirtcliffe, Neil James1; Pyatt, F. Brian1; Newton, Michael I.1; McHale, Glen1; Koch, Kerstin2 | |
通讯作者 | Shirtcliffe, Neil James |
来源期刊 | PLANTA
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ISSN | 0032-0935 |
EISSN | 1432-2048 |
出版年 | 2011 |
卷号 | 234期号:6页码:1267-1274 |
英文摘要 | Some lichens have a super-hydrophobic upper surface, which repels water drops, keeping the surface dry but probably preventing water uptake. Spore ejection requires water and is most efficient just after rainfall. This study was carried out to investigate how super-hydrophobic lichens manage water uptake and repellence at their fruiting bodies, or podetia. Drops of water were placed onto separate podetia of Cladonia chlorophaea and observed using optical microscopy and cryo-scanning-electron microscopy (cryo-SEM) techniques to determine the structure of podetia and to visualise their interaction with water droplets. SEM and optical microscopy studies revealed that the surface of the podetia was constructed in a three-level structural hierarchy. By cryo-SEM of water-glycerol droplets placed on the upper part of the podetium, pinning of the droplet to specific, hydrophilic spots (pycnidia/apothecia) was observed. The results suggest a mechanism for water uptake, which is highly sophisticated, using surface wettability to generate a passive response to different types of precipitation in a manner similar to the Namib Desert beetle. This mechanism is likely to be found in other organisms as it offers passive but selective water control. |
英文关键词 | Apothecium Cryo-SEM Lichens Soredium Super-hydrophobicity Water uptake |
类型 | Article |
语种 | 英语 |
国家 | England ; Germany |
收录类别 | SCI-E |
WOS记录号 | WOS:000297545800015 |
WOS关键词 | FOREST |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/170061 |
作者单位 | 1.Nottingham Trent Univ, Sch Sci & Technol, Nottingham NG11 8NS, England; 2.Rhine Waal Univ, Fac Life Sci, D-47533 Kleve, Germany |
推荐引用方式 GB/T 7714 | Hamlett, Christopher A. E.,Shirtcliffe, Neil James,Pyatt, F. Brian,et al. Passive water control at the surface of a superhydrophobic lichen[J],2011,234(6):1267-1274. |
APA | Hamlett, Christopher A. E.,Shirtcliffe, Neil James,Pyatt, F. Brian,Newton, Michael I.,McHale, Glen,&Koch, Kerstin.(2011).Passive water control at the surface of a superhydrophobic lichen.PLANTA,234(6),1267-1274. |
MLA | Hamlett, Christopher A. E.,et al."Passive water control at the surface of a superhydrophobic lichen".PLANTA 234.6(2011):1267-1274. |
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