2026-04-14T02:36:28Zhttps://recercat.cat/oai/request

oai:recercat.cat:20.500.12327/26902025-10-22T11:22:59Zcom_2072_4428com_2072_4427col_2072_487898

00925njm 22002777a 4500 dc Carrasco-Cuello, Francisca author Jené , Laia author Dolcet-Sanjuan, Ramon author Quiñones, Ana author Rufat, Josep author Torres, Estanis author 2023-11-28 Calcium-labelled (44Ca) uptake and transport under in vitro GreenTray® temporary immersion bioreactor conditions have been studied related to aeration conditions. For this aim, Rootpac®-20 (RP-20) and Garnem® (G × N) were selected as two main rootstocks used in peach production. Two transpiration conditions, aerated and unaerated, were established for each plant material. 44Ca location, plant development and foliar stomata surface were measured after the in vitro culture period. The results showed that aeration improved Ca transport within the shoot, but it did not enhance Ca uptake by the roots. Regarding plant material, G × N presented a better Ca uptake capacity and concentration. The findings suggest that Ca uptake in the roots is a precise process that is influenced by transpiration. However, it was observed that transpiration and thus the water flux is not the only force promoting Ca uptake by roots. Furthermore, the transport of Ca to the shoot was primarily determined by transpiration, indicating that water flux plays a crucial role in the aboveground movement of Ca. The study also revealed distinct behaviors in Ca uptake and allocation between the different peach rootstocks, emphasizing the importance of considering these factors in the selection process of rootstocks. These findings contribute to our understanding of the mechanisms involved in Ca uptake and transport in peach rootstocks under in vitro conditions. They provide valuable insights for rootstock selection processes and highlight the need for further research in this area. Carrasco-Cuello, F., Laia Jené, Ramón Dolcet-Sanjuan, Ana Quiñones, J. Rufat, and Estanis Torres. 2024. “Differential Response to Calcium-Labelled (44Ca) Uptake and Allocation in Two Peach Rootstocks in Relation to Transpiration under in Vitro Conditions.” Scientia Horticulturae 326 (February): 112718. https://doi.org/10.1016/j.scienta.2023.112718. 0304-4238 http://hdl.handle.net/20.500.12327/2690 https://doi.org/10.1016/j.scienta.2023.112718 Differential response to calcium-labelled (44Ca) uptake and allocation in two peach rootstocks in relation to transpiration under in vitro conditions