Variations of elements, pigments, amino acids and secondary metabolites in Vitis vinifera (L.) cv Garganega after 501 biodynamic treatment

Chemical and Biological Technologies in Agriculture

Table 2 Differential metabolite changes in leaves of Paiele plants treated with preparation 501 (PT) compared to control (PC) at both sampling times

Retention time	Var ID (m/z)	PT1 vs PC1	PT2 vs PC2	Identification
4.05	463.0889	+ 1.0%	+ 1.5%	Quercetin glucoside^a
4.16	593.1519	+ 0.2%	+ 3.2%^§	Kaempferol rutinoside
4.12	289.0704	+ 0.7%	+ 2.7%	Epi-Catechin
5.38	227.1283	+ 1.0%	+ 1.5%^§	Resveratrol^a
4.56	477.0686	+ 3.0%	+ 16.0% §	Quercetin glucuronide
5.62	507.2453	+ 12.0%^§	+ 0.5%^§	Dicaffeoyl hexose
4.76	609.1472	+ 1.5%	+ 32.0%^§	Rutin^a
4.79	447.0938	+ 5.0%	+ 11.0%^§	Kaempferol glucoside
4.82	461.0727	+ 3.0%	+ 11.0%^§	Methoxy kaempferol glucoside
4.86	301.0352	+ 1.5%	+ 1.0%	Quercetin^a

Compounds presenting VIP > 11 were selected, putative identification was obtained considering HR-MS spectra as well as fragmentation obtained by MS^e approach
(^a)When available, reference compounds were used to confirm findings. §indicates statistical difference p < 0.05