Proteome dynamics of the cotyledonary haustorium and endosperm in the course of germination of Euterpe oleracea seeds

Antioxidant Defenses Determine the Maturation and Physiological Quality of in Vitro Euterpe Edulis Martius Seeds

“…. Being mannan, the main reserve of the Euterpe endosperm, accumulated during maturation, causing the hardening of the endosperm, obtaining maximum deposition in the nal stage(Moura et al, 2019;Nascimento et al, 2020;Lima et al, 2021).5 CONCLUSIONSIn the present study, we show that in vitro germinated seeds of E. edulis attained maximum germination, vigor, and percentage of normal seedlings 164 DAA (immature fruit), which represents a gain of 126 days compared to seeds obtained at the last stage of maturation (290 DAA). CAT and APX activity, as well as H 2 O 2 and lipid peroxidation levels, increased from 269 DDA onwards to counteract the release of ROS.Anthocyanin production by E. edulis seeds peaked at the last stage of maturation, with the rst change in anthocyanin concentration detected 164 DAA.…”

Proteomic changes associated with the development of açaí (Euterpe oleracea Mart.) seeds

“…While the genome of the açaí palm has yet to be sequenced, the availability of the genome of six other Arecaceae ( Elaeis guineensis [10], Elaeis oleifera [11], Phoenix dactylifera [12], Cocos nucifera [13], Calamus simplicifolius [14], and Metroxylon sagu [15]) were used to establish the proteomes of the endosperm and haustorial cotyledon of germinating seeds [16] and the developing pericarp [17]. Here, we show an in‐depth quantitative proteome analysis of four developmental stages of açaí seeds, highlighting the quantitative data related to the proteins involved in the biosynthesis, remodeling and degradation of the cell wall, and the enzymatic machinery involved in the biosynthesis of flavonoids, particularly in the biosynthesis of catechin and epicatechin the precursors of PAs.…”