Chia ( Salvia hispanica L.) Seed Soaking, Germination, and Fatty Acid Behavior at Different Temperatures

Daniel Cabrera-Santos, Cesar A. Ordoñez-Salanueva, Salvador Sampayo-Maldonado, Jorge E. Campos, Alma Orozco-Segovia and Cesar M. Flores-Ortiz
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Daniel Cabrera-Santos: Laboratorio de Fisiología Vegetal, Unidad de Biología, Tecnología y Prototipos (UBIPRO), Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Av. de los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla C.P. 54090, Mexico
Cesar A. Ordoñez-Salanueva: Laboratorio de Fisiología Vegetal, Unidad de Biología, Tecnología y Prototipos (UBIPRO), Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Av. de los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla C.P. 54090, Mexico
Salvador Sampayo-Maldonado: Laboratorio de Fisiología Vegetal, Unidad de Biología, Tecnología y Prototipos (UBIPRO), Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Av. de los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla C.P. 54090, Mexico
Jorge E. Campos: Laboratorio de Bioquímica Molecular, Unidad de Biología, Tecnología y Prototipos (UBIPRO), Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Av. de los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla C.P. 54090, Mexico
Alma Orozco-Segovia: Laboratorio de Ecología Fisiológica, Instituto de Ecología, Universidad Nacional Autónoma de México, Coyoacán, Mexico City C.P. 04510, Mexico
Cesar M. Flores-Ortiz: Laboratorio de Fisiología Vegetal, Unidad de Biología, Tecnología y Prototipos (UBIPRO), Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Av. de los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla C.P. 54090, Mexico

Agriculture, 2021, vol. 11, issue 6, 1-16

Abstract: The temperature reduces the viability and seed vigor; however, the effect of temperature on imbibition and fatty acid profile has not been studied. Chia ( Salvia hispanica L.) seeds have a substantial quantity of oil, making them a potential study model for fatty acid metabolism. Therefore, we explore the effect of temperature (10, 20, and 30 °C) on chia seed imbibition, germination, and fatty acid profile by GC-MS. Imbibition FI occurs within the first hour in all the treatments; while FII and FII end elapse with an hour of difference at 20 °C and 30 °C. The highest viability and germination rate were observed at 30 °C; while the highest concentrations of all fatty acids, except oleic acid, were observed at 20 °C. Maximum fatty acid concentrations were detected at FI and FII end ; while at 30 °C, different patterns for saturated and unsaturated fatty acids and three linolenic acid isomers were observed. A shorter FII is associated with earlier germination; the increase in concentration in fatty acids after 3 h and a negative correlation between linoleic and linolenic acid observed at 20 °C were related to a higher germination efficiency. At 30 °C, isomer formation is related to homeoviscous cell membrane adaptation.

Keywords: fatty acid isomerization; germination phases; homeoviscous adaptation; linolenic acid; lipid metabolism; polyunsaturated fatty acids; Salvia hispanica; seed imbibition (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2021
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