Oil accumulation in soybean seeds grown in vitro and in vivo
DOI:
https://doi.org/10.5433/1679-0359.2015v36n5p3085Keywords:
Glycine max, Seed development, Lipids.Abstract
The soybean seed presents around 20% of oil and 40% of protein. These levels, during the filling of the seeds, can be influenced by environmental conditions, where are produced changes on its biochemistry composition. The higher temperatures promote the accumulation of protein, and the moderate temperatures favor the oil accumulation. Under in vivo growing conditions the control of these factors is difficult. The in vitro procedure can help the research, because the seed can be isolated from the mother plant in controlled environment. The objective of this experiment was to evaluate the oil content of BRS184 and BRS282in vitro and in vivo. The in vivo procedure, occurred in the greenhouse, with 3plantsper potand seed collectionin R8, and in vitro procedure, developed in the laboratory, where the immature seeds were taken from the mother plant in R5 stage, cultured with a liquid culture medium containing 20 mM, 40 mM and 60 mM glutamine, with a constant agitation, during eight days at 25 ± 0.2 °C, and sucrose concentration of 204.5 mM. After the in vitro cultivation time for, the fresh weight gain of the seeds was evaluated, and after both experiments, was determined by the oil content for cultivation in R5, and R8. The accumulation of oil in soybean seeds presents a complex interaction, ranging between the genotype and the environmental conditions, under in vivo and in vitro cultivation. There is a positive correlation between production and oil content in seeds.
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