Foliar fertilization is becoming very popular since it is highly efficient, minimizes contamination, and is target oriented. However, the low mobility of several nutrients and low penetration through the leaf cuticle should be addressed, to establish an efficient leaf applied fertilizer. During the last few years, nanotechnologies - such as nanocarriers - have been studied with regard to improving the penetration and delivery of compounds. This work describes the use of membrane vesicles obtained from Brassica oleracea L. as nanobiocarriers of Zn and the evaluation of their potential as a foliar fertilizer, also in Brassica. The results show a high Zn encapsulation efficiency and high delivery into protoplasts. Also, the foliar fertilization experiments demonstrated a very effective system of Zn nanofertilization.
Keywords: Encapsulation; Foliar fertilization; Plasma membrane vesicles; Protoplasts.
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