Distribution and variability of silicon, copper and zinc in different bamboo species
With a high growth rate and biomass production, bamboos are frequently used for industrial applications and recently have proven to be useful for wastewater treatment. Bamboos are considered as Si accumulators and there is increasing evidence that silicon may alleviate abiotic stresses such as metal toxicity. The aim of this study was to investigate the extent of metal concentrations and possible correlations with Si concentrations in plants.
This study presents, for the first time, reference values for silicon (Si), copper (Cu) and zinc (Zn) concentrations in stems and leaves of various bamboo species grown under the natural pedo-climatic conditions of the island of Réunion (Indian Ocean).
A broad range of silicon concentrations, from 0 (inferior to detection limit) to 183 mg g−1 dry matter (DM), were found in stems and leaves. Mean leaf Cu and Zn concentrations were low, i.e. 5.1 mg kg−1 DM and 15.7 mg kg−1 DM, respectively. Silicon, Cu and Zn concentrations increased over the following gradient: stem base < stem tip < leaves. Significant differences in Si, Cu and Zn contents (except Zn in the stem) were noted between bamboo species, particularly between monopodial and sympodial bamboo species, which differ in their rhizome morphology. Sympodial bamboos accumulated more Si and Cu than monopodial bamboos, in both stems and leaves, whereas sympodial bamboos accumulated less Zn in leaves than monopodial bamboos.
The findings of this study suggest that a genotypic character may be responsible for Si, Cu and Zn accumulation in bamboo.
KeywordsTrace element Silica Poaceae Genotypic variability Island of Réunion
This work was financially supported by the Direction Générale des Entreprises, Direction Générale de la Compétitivité, de l’Industrie et des Services, région Réunion, région PACA in the frame of the research program RUN INNOVATION II and by the Association Nationale de la Recherche et de la Technologie (CIFRE grant).
The authors thank Mr Alexandre Perrussot, Mr Gregory Bois and MmeVeronique Arfi for their assistance and fruitful discussions.
- Basile-Doelsch I, Amundson R, Stone WEE, Masiello CA, Bottero JY, Colin F, Masin F, Borschneck D, Meunier JD (2005) Mineralogical control of organic carbon dynamics in a volcanic ash soil on La Reunion. Eur J Soil Sci 56(6):689–703Google Scholar
- Jones LHP, Handreck KA, Norman AG (1967) Silica in soils, plants, and animals. In: Advances in Agronomy, vol 19. Academic Press, pp 107–149Google Scholar
- Kabata-Pendias A, Mukherjee AB (2007) Trace elements from soil to human. SpringerGoogle Scholar
- Keller C (2005) Efficiency and limitations of phytoextraction by high biomass plants. In: Trace elements in the environment. CRC Press, pp 611–630Google Scholar
- Kleinhenz V, Midmore DJ (2001) Aspects of bamboo agronomy. In: Sparks DL (ed) Advances in agronomy, vol 74. Academic, New York, pp 99–153Google Scholar
- Li J, Leisner M, Frantz J (2008) Alleviation of copper toxicity in Arabidopsis thaliana by silicon addition to hydroponic solutions. J Am Soc Hort Sci 133(5):670–677Google Scholar
- Liao M, Hedley M, Woolley D, Brooks R, Nichols M (2000) Copper uptake and translocation in chicory (Cichorium intybus L. cv. Grasslands Puna) and tomato (Lycopersicon esculentum Mill. cv. Rondy) plants grown in NFT system. II. The role of nicotianamine and histidine in xylem sap copper transport. Plant Soil 223(1):245–254CrossRefGoogle Scholar
- Ma JF, Takahashi E (2002) Soil, fertilizer and plant silicon research in Japan. Elsevier ScienceGoogle Scholar
- McClure FA (1966) The bamboos. A fresh perspective. Harvard University Press, MassachusettsGoogle Scholar
- McCutcheon SC, Schnoor JL (2003) Phytoremediation—Transformation and control of contaminants. Wiley Inter-science, USAGoogle Scholar
- Novak JM, Watts DW, Stone KC (2004) Copper and zinc accumulation, profile distribution, and crop removal in coastal plain soils receiving long-term, intensive applications of swine manure. Trans Am Soc Agric Eng 47(5):1513–1522Google Scholar
- Raunet M (1991) Le milieu physique et les sols de l’île de la Réunion. Conséquences pour la mise en valeur agricole. CIRAD IRAT, MontpellierGoogle Scholar