IMBIBITION OF QUINOA SEEDS IN AGAR AND Aloe maculata GEL

MARIANA BEVERINA; FANNY SCHABES; ZAPATA MARTINEZ J. JAIME; MARÍA LUCRECIA ARIAS CASSARÁ; TUTTOLOMONDO, MARÍA EUGENIA; JAIME G. S.

BIOCELL 44 (suppl. 2)

UNT- Facultad Bioquímica Química y Farmacia

Lugar: Tafi Viejjo; Año: 2020 vol. 1 p. 16 - 16

Quínoa (Chenopodium quínoa Willd.) Is a culture rich in lysine, cysteine, methionine, arginine and histidine. Aloe M (Aloe maculata) contains methionine (in large quantities) and other aminoacids. Exudates and gel are extracted from its leaves. Seed germination is defined as a series of events that result in the transformation of an embryo into a seedling. The first is the taking of water by the seed (imbibition phase) that depends on: chemical composition of the seeds, permeability of the seminal envelope and availability of water in the environment. The entry of water is due to the difference in water potential between the cell and the surrounding environment, both the quinoa and the aloe gel have amino acids in common, the water molecules cross the semipermeable membrane from the solution of lower concentration, to the one with the highest concentration until the concentrations are equalized. To monitor the germination, curves of imbibition of quinoa seeds on 1% agar-water and on aloe M gel were performed. For this, 10 heavy seeds (Pi) were placed in Petri, in triplicate, (n = 30) on agar. water and another equal batch on aloe gel, the final weight (Pf) was obtained at different times between 5 and 1440 min.The velocity curves of water entry to the seeds as a function of time show similarity in the first phases for both experiments, but after 6 hours in the case of agar the protrusion of the root occurs, with an abrupt fall in Water intake speed. In the case of those studied on gel, the radicle was only observed at 24 hr. This is due to the fact that the gel contains aminoacids among other substances, which makes it difficult to take water from the seeds