In Ion-Temperature-Gradient (ITG) driven turbulence, the resonance condition leads to ion particle turbulent transport coeﬃcients signiﬁcantly larger than electron particle turbulent transport coeﬃcients. This is shown in non-linear gyrokinetic simulations and explained by an analytical quasilinear model. It is then illustrated by JETTO-QuaLiKiz integrated modelling. Large ion particle transport implies that the ion density proﬁles are uncorrelated to the corresponding ion source, hence peaked isotope density proﬁles even in the absence of core source, no accumulation of He ashes and fast impurity transport. Furthermore, the relaxation time of the individual ion proﬁles in a mixed system can be signiﬁcantly faster than the total density proﬁle relaxation time which is constrained by the electrons. In Trapped-Electron-Mode (TEM) turbulence, in presence of electron heating about twice the ion heating, the situation is the inverse: ion particle turbulent transport coeﬃcients are smaller than their electron counterpart.