High Zn concentration does not impair biomass, cutting radial growth, and photosynthetic activity traits in Populus alba L
| Autor: | Luca Sebastiani, Stefania Romeo, Alessandra Francini, Domenico Morabito |
|---|---|
| Přispěvatelé: | BioLabs, Institute of Life Sciences, Scuola Universitaria Superiore Sant'Anna [Pisa] (SSSUP), Laboratoire de Biologie des Ligneux et des Grandes Cultures (LBLGC), Institut National de la Recherche Agronomique (INRA)-Université d'Orléans (UO), Scuola Superiore Sant’Anna |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Stomatal conductance Peat Stratigraphy Biomass chemistry.chemical_element translocation Zinc pollution métallique populus 010501 environmental sciences Biology Photosynthesis 01 natural sciences Bio-concentration factor populus alba dioxyde de carbone Dry weight [SDV.BV]Life Sciences [q-bio]/Vegetal Biology Growth rate assimilation du carbone 0105 earth and related environmental sciences Earth-Surface Processes carbonic anhydride soil pollution croissance radiale zinc Substrate (chemistry) pollution du sol production de biomasse Horticulture Radial growth Agronomy chemistry croissance secondaire facteur biochimique Translocation factor CO2 assimilation Poplar 010606 plant biology & botany |
| Zdroj: | Journal of Soils and Sediments Journal of Soils and Sediments, Springer Verlag, 2017, 17 (5), pp.1394-1402. ⟨10.1007/s11368-015-1251-y⟩ link.springer.com/journal/11368/17/5/page/1 |
| ISSN: | 1439-0108 1614-7480 |
| DOI: | 10.1007/s11368-015-1251-y⟩ |
| Popis: | Evaluate the efficiency of Populus alba clone Villafranca in the uptake and translocation of Zn from contaminated soils. The effects of 48 days of zinc treatment (Zn t ) on the growth and the photosynthetic activities of P. alba L. clone Villafranca were studied using ZnSO4 (375 ppm per unit of soil dry weight) added in sand and peat moss substrate at the beginning of the treatment (T 0) and again after 30 days (T 1) in order to reach a target Zn concentration of 375 ppm at T 0 and 750 ppm at T 1 per unit of soil dry weight. Zn uptake in the different organs was analyzed after 30 (T 1) and 48 days (T 2) from the beginning of treatment, showing the following order: root ≫ leaves ≥ woody cutting = stem. The leaf area increased by 12 % in comparison to control plants at the end of second treatment (48 days). Cutting radial growth showed a high synchronicity in the growth rate fluctuation among control and Zn t plants, but a higher increase in radial diameter of Zn t cutting was observed starting from day 38 (after 8 days of second Zn t ) reaching after 48 days 38 % higher than control plants. Although our data of leaf Zn concentration were in the range usually reported as toxic for plants, Villafranca clone in Zn t substrate were unaffected in terms of net CO2 assimilation and stomatal conductance to water vapor. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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