Aerial roots of epiphytic orchids: The velamen radicum and its role in water and nutrient uptake

Oecologia

Volumn 171, Issue 3, 2013, Pages 733-741

  Zotz, Gerhard ^a,b   Winkler, Uwe ^a  

^a UNIVERSITY OF OLDENBURG   (Germany)

^b SMITHSONIAN TROPICAL RESEARCH INSTITUTE   (Panama)

Author keywords

Cation exchange capacity; Epiphytes; Phosphorus; Potassium

Indexed keywords

DICOTYLEDON; EPIPHYTE; ION EXCHANGE; NUTRIENT UPTAKE; PHOSPHORUS; POTASSIUM; QUANTITATIVE ANALYSIS; RAINFALL; REACTION KINETICS; ROOT; WATER UPTAKE;

ORCHIDACEAE; VELAMEN;

EID: 84875054522     PISSN: 00298549     EISSN: None     Source Type: Journal    
DOI: 10.1007/s00442-012-2575-6     Document Type: Article

References (39)

1. Antibus RK, Lesica P (1990) Root surface acid phosphatase activities of vascular epiphytes of a Costa Rican rain forest. Plant Soil 128: 233-240.
2. Bates JW (1989) Retention of added K, Ca and P by Pseudoscleropodium purum growing under an oak canopy. J Bryol 15: 589-605.
3. Benzing DH (1990) Vascular epiphytes. General biology and related biota. Cambridge University Press, Cambridge.
4. Benzing DH (1996) Aerial roots and their environments. In: Waisel Y, Eshel A, Kafkafi U (eds) Plant roots: the hidden half. Marcel Dekker, New York, pp 875-894.
5. Benzing DH (2000) Bromeliaceae-profile of an adaptive radiation. Cambridge University Press, Cambridge.
6. Benzing DH, Ott DW, Friedman WE (1982) Roots of Sobralia macrantha (Orchidaceae): structure and function of the velamen-exodermis complex. Am J Bot 69: 608-614.
7. Böttger M, Soll H, Gasche A (1980) Modification of the external pH by maize coleoptlies and velamen radicum of Vanilla planifolia. Z Pflanzenphysiol 48: 81-96.
8. Brundrett M (2009) Mycorrhizal associations and other means of nutrition of vascular plants: understanding the global diversity of host plants by resolving conflicting information and developing reliable means of diagnosis. Plant Soil 320: 37-77.
9. Capesius I, Barthlott W (1975) Isotopen-Markierungen und rasterelektronenmikroskopische Untersuchungen am Velamen radicum der Orchideen. Z Pflanzenphysiol 75: 436-448.
10. Dahlmann L, Persson J, Palmquist K, Näsholm T (2004) Organic and inorganic nitrogen uptake in lichens. Planta 129: 459-467.
11. Dycus AM, Knudson L (1957) The role of the velamen of the aerial roots of orchids. Bot Gaz 119: 78-87.
12. Gillet C, Lefebvre J (1980) Estimation of anion-exchange capacity of cell walls of Nitella flexilis. J Exp Bot 32: 37-41.
13. Goebel K (1921) Erdwurzeln mit Velamen. Flora 115: 1-26.
14. Goh CJ, Kluge M (1989) Gas exchange and water relations in epiphytic orchids. In: Lüttge U (ed) Vascular plants as epiphytes: evolution and ecophysiology, vol 76. Springer, Heidelberg, pp 139-166.
15. 99Tc in Versuchen über den Wassertransport in Luftwurzeln von Vanda tricolor Lindl. Z Pflanzenphysiol 75: 427-435.
16. Haberlandt GFJ (1914) Physiological plant anatomy. Macmillan, London.
17. Hájek T, Adamec L (2009) Mineral nutrient economy in competing species of Sphagnum mosses. Ecol Res 24: 291-302.
18. Helbsing S, Riederer M, Zotz G (2000) Cuticles of vascular epiphytes: efficient barriers for water loss after stomatal closure? Ann Bot 86: 765-769.
19. Inselsbacher E, Cambui CA, Richter A, Stange CF, Mercier H, Wanek W (2007) Microbial activities and foliar uptake of nitrogen in the epiphytic bromeliad Vriesea gigantea. New Phytol 175: 311-320.
20. Jordan PW, Nobel PS (1984) Thermal and water relations of roots of desert succulents. Ann Bot 54: 705-717.
21. Läuchli A, Epstein E (1970) Transport of potassium and rubidium in plant roots: the significance of calcium. Plant Physiol 45: 639-641.
22. Link HF (1824) Elementa philosophiae botanicae. Haude & Spenersche, Berlin.
23. Lüttge U (1997) Physiological ecology of tropical plants. Springer, Berlin.
24. Mulay BN, Deshpande BU, Williams HP (1958) Study of velamen in some epiphytic and terrestrial orchids. J Indian Bot Soc 37: 123-127.
25. Porembski S, Barthlott W (1995) On the occurrence of a velamen radicum in Cyperaceae and Velloziaceae. Nordic J Bot 15: 625-629.
26. Pridgeon AM (1987) The velamen and exodermis of orchid roots. In: Arditti J (ed) Orchid biology. Reviews and perspectives IV. Cornell University Press, Ithaca, pp 139-192.
27. R Development Core Team (2010) R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna.
28. Richardson BA, Rogers C, Richardson MJ (2000) Nutrients, diversity and community structure of two phytotelm systems in a lower montane forest, Puerto Rico. Ecol Entomol 25: 348-356.
29. Richter C, Dainty J (1989) Ion behavior in plant cell walls. I. Characterization of the Sphagnum russowii cell wall ion exchanger. Can J Bot 67: 451-459.
30. Roth-Nebelsick A (2009) Pull, push and evaporate. The role of surfaces in plant water transport. In: Gorb S (ed) Functional surfaces in biology. Little structures with big effects, vol 1. Springer, Berlin, pp 141-162.
31. Sanford WW, Adanlawo FLS, Adanlawo I (1973) Velamen and exodermis characters of west African epiphytic orchids in relation to taxonomic grouping and habitat tolerance. Bot J Linn Soc 66: 307-321.
32. Tsavkelova EA, Lobakova ES, Kolomeitseva GL, Cherdyntseva TA, Netrusov AI (2003) Associative cyanobacteria isolated from the roots of epiphytic orchids. Microbiology 72: 92-97.
33. Wallach A (1939) Beiträge zur Kenntnis der Wasseraufnahme durch die Luftwurzeln tropischer Orchideen. Z Bot 33: 433-468.
34. WCSP (2012) World checklist of selected plant families. Facilitated by the Royal Botanic Gardens, Kew. http://apps. kew. org/wcsp/. Retrieved 2 Feb 2012.
35. Went FW (1940) Soziologie der Epiphyten eines tropischen Regenwaldes. Ann Jard Bot Buitenzorg 50: 1-98.
36. Winkler U, Zotz G (2009) Highly efficient uptake of phosphorus in epiphytic bromeliads. Ann Bot 103: 477-484.
37. Winkler U, Zotz G (2010) "And then there were three": highly efficient uptake of potassium by foliar trichomes of epiphytic bromeliads. Ann Bot 106: 421-427.
38. Yen W-Y, Chang Y-CA, Wang Y-T (2011) The acidification of Sphagnum moss substrate during Phalaenopsis cultivation. Hortscience 46: 1022-1026.
39. Zotz G, Hietz P (2001) The physiological ecology of vascular epiphytes: current knowledge, open questions. J Exp Bot 52: 2067-2078.