Biogeosciences and Wine: Rare Earth Elements Discriminate Vitis Vinifera Growth Substrate
Explore how the distribution of Rare Earth Elements (REE) in Vitis Vinifera roots discriminates growth substrate, highlighting the potential for REE patterns to reveal environmental conditions influencing vine growth over time and space.
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Session SSS9.3 Biogeosciences and wine: the management and the environmental processes that regulate the terroir effect in space and time Distribution of Rare Earth Elements (REE) discriminates the substrate of growth in VitisVinifera L. ? Marcella Barbera1,2, Pierpaolo Zuddas2, Filippo Saiano1 1. 2. Universit di Palermo, SAAF, Viale delle Scienze ed. 4, 90128,Palermo, Italy Sorbonne Universit , METIS, 4 place Jussieu, 75005, Paris, France marcella.barbera@unipa.it Tuesday,5 May 2020 SSS9.3 EGU2020-5770
To experimentally test if REE mobilization between soil and plant in Vitis Vinifera L. could discriminate the substrate of growth: Pristine plants grew on native soils Spiked substrate (peat-gravel) contains an equimolar solution of REE Plants developments Spiked Experiments Blank Experiments 120 Blank experiments 100 Spiked experiments Total Weight (g) 80 60 [REE] solution 40 20 0 Peat :gravel substrate Peat :gravel substrate 0 2 4 6 8 10 12 Time (months) [REE] = 2.5 mol kg-1of substrate
The distribution of REE normalised patterns in roots ??? ????????????? ?? ????? ??? ????????????? ?? ???.????.???????? ??? ????????????? ?? ?????? ???? ??? ????????????? ?? ???.????.????? ??? ?????= ?????? ?????= Blank experiments Spiked experiments La Ce Pr Nd Sm Eu Gd Tb Dy Y Ho Er Tm Yb Lu La Ce Pr Nd Sm Eu Gd Tb Dy Y Ho Er Tm Yb Lu 1000 1000 roots 100 100 10 10 REE* REE* 1 1 0.1 0.1 0.01 0.01 [LREE] < [HREE] [LREE] > [HREE] REE distribution reflects the native soil pattern REE distribution changes compared to the native soil pattern .
Conclusions The REE relative abundance is independent from the plant development REE distribution discriminates the substrate of growth REE distribution patterns are potential tools discriminating the environmental conditions of Vitis Vinifera L. growth
