Leaf surface structures enable the endemic Namib desert grass Stipagrostis sabulicola to irrigate itself with fog water

Journal of the Royal Society Interface

Volumn 9, Issue 73, 2012, Pages 1965-1974

  Roth Nebelsick, A ^a   Ebner, M ^b   Miranda, T ^b   Gottschalk, V ^d   Voigt, D ^c   Gorb, S ^c   Stegmaier, T ^d   Sarsour, J ^d   Linke, M ^d   Konrad, W ^b  

^a STAATLICHES MUSEUM FÜR NATURKUNDE   (Germany)

^b UNIVERSITY OF TÜBINGEN   (Germany)

^c UNIVERSITY OF KIEL   (Germany)

^d Deutsche Institute für Textil und Faserforschung DITF   (Germany)

Author keywords

Contact angle; Directional water flow; Fog collection; Stipagrostis sabulicola; Surface grooves; Surface roughness

Indexed keywords

CONTACT ANGLE; DROPS; FLOW OF WATER; HYDRAULICS; SURFACE ROUGHNESS; WATER SUPPLY;

ADVANCING CONTACT ANGLE; CONTACT ANGLE HYSTERESIS; FOG WATER; IRREGULAR SURFACE; KEY FACTORS; LEAF SURFACES; LONG AXIS; NAMIB DESERT; STIPAGROSTIS SABULICOLA; SURFACE GROOVES; WATER CONDUCTION; WATER FLOWS;

FOG;

FOG WATER; UNCLASSIFIED DRUG; WATER;

ARTICLE; CONTACT ANGLE; FOG; GRASS; IRRIGATION (AGRICULTURE); LEAF SURFACE; NONHUMAN; PLANT LEAF; SCANNING ELECTRON MICROSCOPY; STIPAGROSTIS SABULICOLA; SURFACE PROPERTY;

EID: 84865062989     PISSN: 17425689     EISSN: 17425662     Source Type: Journal    
DOI: 10.1098/rsif.2011.0847     Document Type: Article

References (35)

1. Quéré, D. 2008 Wetting and roughness. Annu. Rev. Mater. Res. 38, 71-99. (doi:10.1146/annurev.matsci.38.060407.132434)
2. Shirtcliffe, N. J., McHale, G. & Newton, M. I. 2009 Learning from superhydrophobic plants: the use of hydrophilic areas on superhydrophobic surfaces for droplet control. Langmuir 25, 14 121-14 128. (doi:10.1021/ la901557d)
3. Koch, K., Bhushan, B. & Barthlott, W. 2008 Diversity of structure, morphology and wetting of plant surfaces. Soft Matter 4, 1943-1963. (doi:10.1039/b804854a)
4. Barthlott, W. et al. 2010 The Salvinia Paradox: superhydrophobic surfaces with hydrophilic pins for air retention under water. Adv. Mater. 22, 2325-2328. (doi:10.1002/adma.200904411)
5. Gorb, E. V. & Gorb, S. N. 2006 Physicochemical properties of functional surfaces in pitchers of the carnivorous plant Nepenthes alata Blanco (Nepenthaceae). Plant Biol. 8, 841-848. (doi:10.1055/s-2006-923929)
6. Holder, C. D. 2007 Leaf water repellency of species in Guatemala and Colorado (USA) and its significance to forest hydrology studies. J. Hydrol. 336, 147-154. (doi:10.1016/j.jhydrol.2006.12.018)
7. Ritter, A., Regalado, C. M. & Aschan, G. 2009 Fog reduces transpiration in tree species of the Canarian relict heath-laurel cloud forest (Garajonay National Park, Spain). Tree Physiol. 29, 517-528. (doi:10.1093/treephys/tpn043)
8. Fischer, D. T., Still, C. J. & Williams, A. P. 2008 Significance of summer fog and overcast for drought stress and ecological functioning of coastal California endemic plant species. J. Biogeogr. 36, 783-799. (doi:10.1111/j.1365-2699.2008.02025.x)
9. Dawson, T. E. 1998 Fog in the California redwood forest: ecosystem inputs and use by plants. Oecologia 117, 476-485. (doi:10.1007/s004420050683)
10. Liu, W., Meng, F. R., Zhang, Y., Liu, Y. & Li, H. 2004 Water input from fog drip in the tropical seasonal rain forest of Xishuangbanna, South-West China. J. Tropic. Ecol. 20, 517-524. (doi:10.1017/S0266467404001890)
11. Aboal, J. R., Morales, D., Hernandez, M. & Jimenez, M. S. 1999 The measurement and modelling of the variation of stem-flow in a laurel forest in Tenerife, Canary Islands. J. Hydrol. 221, 161-174. (doi:10.1016/S0022-1694 (99)00086-4)
12. Ingraham, N. L. & Mark, A. F. 2000 Isotopic assessment of the hydrologic importance of fog deposition on tall snow tussock grass on southern New Zealand uplands. Austral Ecol. 25, 402-408. (doi:10.1046/j.1442-9993.2000. 01052.x)
13. Seely, M. K., de Vos, M. P. & Louw, G. N. 1977 Fog imbibition, satellite fauna and unusual leaf structure in a Namib Desert dune plant, Trianthema hereroensis. S. Afr. J. Sci. 73, 169-172.
14. Hamilton III, W. J., Henschel, J. R. & Seely, M. K. 2003 Fog collection by Namid Desert beetles. S. Afr. J. Sci. 99, 181.
15. Louw, G. N. & Seely, M. K. 1980 Exploitation of fog water by a perennial Namib dune grass, Stipagrostis sabulicola. S. Afr. J. Sci. 76, 38-39.
16. Ebner, M., Miranda, T. & Roth-Nebelsick, A. 2011 Efficient fog harvesting by Stipagrostis sabulicola (Namib dune bushman grass). J. Arid Environ. 75, 524-531. (doi:10.1016/j.jaridenv.2011.01.004)
17. de Winter, B. 1965 The South African Stipeae and Aristideae (Gramineae) (an anatomical, cytological and taxonomic study). Bothalia 8, 201-404.
18. Adamson, A. W., Gast, A. P. & NetLibrary, I. 1997 Physical chemistry of surfaces. New York, NY: Wiley.
19. Sarsour, J., Linke, M. & Planck, H. 2010 Bionic development of textile materials for harvestingwater fromfog. In Proc. 5th Int. Conf. Fog, Fog Collection and Dew 2010, pp. 88-90, 25-30 July 2010. Münster, Germany: C. W. Group.
20. Reimer, E. & Hugo Cota-Sánchez, J. 2007 An SEM survey of the leaf epidermis in danthonioid grasses (Poaceae: Danthonioideae). Syst. Bot. 32, 60-70. (doi:10.1600/036364407780360139)
21. Clark, C. A. & Gould, F. W. 1975 Some epidermal characteristics of paleas of Dichanthelium, Panicum, and Echinochloa. Am. J. Bot. 62, 743-748. (doi:10.2307/2442064)
22. Burkhardt, J. 2010 Hygroscopic particles on leaf surfaces: nutrients or desiccants? J. Ecol. Monogr. 80, 369-399. (doi:10.1890/09-1988.1)
23. Guha, A. 2008 Transport and deposition of particles in turbulent and laminar flow. Ann. Rev. Fluid Mech. 40, 311-341. (doi:10.1146/annurev.fluid.40. 111406.102220)
24. Huang, C., Chang, Y. C. & Wu, S. Y. 2010 Contact angle analysis of low-temperature cyclonic atmospheric pressure plasma modified polyethylene terephthalate. Thin Solid Films 518, 3575-3580. (doi:10.1016/j.tsf.2009.11.046)
25. Vassallo, E., Cremona, A., Ghezzi, F. & Ricci, D. 2010 Characterization by optical emission spectroscopy of an oxygen plasma used for improving PET wettability. Vacuum 84, 902-906. (doi:10.1016/j.vacuum.2009.12. 008)
26. Eral, H. B., de Ruiter, J., de Ruiter, R., Oh, J. M., Semprebon, C., Brinkmann, M. & Mugele, F. 2011 Drops on functional fibers: from barrels to clamshells and back. Soft Matter 7, 5138-5143. (doi:10.1039/c0sm01403f)
27. Konrad, W., Ebner, M. & Roth-Nebelsick, A. In press. Leaf surface wettability and implications for drop shedding and evaporation from forest canopies. Pure Appl. Geophys. (doi:10.1007/s00024-011-0330-2)
28. Cox, R. G. 1983 The spreading of a liquid on a rough solid surface. J. Fluid Mech. 131, 1-26. (doi:10.1017/S0022112083001214)
29. de Gennes, P. G. 1985 Wetting: statics and dynamics. Rev. Modern Phys. 57, 827-863. (doi:10.1103/RevModPhys.57.827)
30. Chung, J. Y., Youngblood, J. P. & Stafford, C. M. 2007 Anisotropic wetting on tunable micro-wrinkled surfaces. Soft Matter 3, 1163-1169. (doi:10.1039/b705112c)
31. Wagner, P., Fürstner, R., Barthlott, W. & Neinhuis, C. 2003 Quantitative assessment to the structural basis of water repellency in natural and technical surfaces. J. Exp. Bot. 54, 1295-1303. (doi:10.1093/jxb/erg127)
32. Seemann, R., Brinkmann, M., Kramer, E. J., Lange, F. F. & Lipowsky, R. 2005 Wetting morphologies at microstructured surfaces. Proc. Natl Acad. Sci. 102, 1848. (doi:10.1073/pnas.0407721102)
33. Washburn, E. W. 1921 The dynamics of capillary flow. Phys. Rev. 17, 273-283. (doi:10.1103/PhysRev.17.273)
34. Rye, R. R., Mann Jr, J. A. & Yost, F. G. 1996 The flow of liquids in surface grooves. Langmuir 12, 555-565. (doi:10.1021/la9500989)
35. Schneider, H., Wistuba, N., Wagner, H.-J., Thürmer, F. & Zimmermann, U. 2000 The impact of lipid distribution, composition and mobility on xylem water refilling of the resurrection plant Myrothamnus flabellifolia. New Phytologist 148, 221-238. (doi:10.1046/j.1469-8137.2000.00759.x)