2026-05-31T17:58:24Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/368312026-02-03T10:49:06Zcom_10630_2254col_10630_37953

Histological aspects of avocado embryo development and effect of developmental stages on germination. Perán-Quesada, Rosa Amelia Sánchez-Romero, Carolina Pliego-Alfaro, Fernando Barcelo-Muñoz, Araceli Aguacates - Aspectos moleculares Anatomical differentiation and storage product accumulation were studied during avocado (Persea americana Mill.) zygotic embryo development using histological techniques. The results were correlated with the germination capacity under in vitro conditions.The histodifferentiation phase, characterized by active cell division and differentiation, was accomplished by 100 d after pollination (DAP), when embryos reached 16–18 mm in length. After a phase in which there were no morphological changes, the maturation phase commenced at 125 DAP in embryos 24–26 mm in length. Accumulation of starch granules and the appearance of protein bodies occurred at this time. Germination was significantly influenced by the embryo developmental stage. Different parameters used as indicators of germination quality (germination percentage, germination speed and recovery of complete plantlets) showed a positive correlation with the age of the embryos. However, germination in vitro was not achieved fully until the end of zygotic embryo development, when the embryo reached physiological maturity. 2025-01-23T12:05:21Z 2025-01-23T12:05:21Z 2025-01-23T12:05:21Z 2005 journal article Perán-Quesada R, Sánchez-Romero C, Pliego-Alfaro F, Barceló-Muñoz A. Histological aspects of avocado embryo development and effect of developmental stages on germination. Seed Science Research. 2005;15(2):125-132. doi:10.1079/SSR2005205 https://hdl.handle.net/10630/36831 10.1079/SSR2005205 eng http://creativecommons.org/licenses/by-nc-sa/4.0/ open access Atribución-NoComercial-CompartirIgual 4.0 Internacional Cambridge University Press