Natural priming of Wigandia urens seeds during burial: effects on germination, growth and protein expression

• DOI: 10.1079/ssr200057
• Publication Date: 2011-03-11T16:32:08Z
• Authors: Lourdes González-...; Carlos Vázquez-Yanes; Alicia Gamboa; M. Esther Sánchez...; Patricia Aguilera; Alma Orozco-Segovia
• Keywords: Priming (agriculture)

To determine whether seeds of the weedy shrub Wigandia urens, from Valley Mexico, undergo natural priming when buried in soil, comparative experiments were performed with seeds: (1) harvested directly plants; (2) three habitat conditions; and (3) laboratory primed polyethylene glycol. Seeds sown a growth chamber shade house. Final germination percentages, emergence, emergence rates, survival initial determined. Burial enhanced parameters evaluated Effects treatments on not significantly different. Nevertheless, burial improved mean survival, induced differences specific leaf area seedlings that could have ecological significance. Heat-stable proteins extracted electrophoresed. Proteins formed W. urens during had molecular weights (14–21 kDa) similar to those reported for late embryogenesis abundant (LEA) by other species. presence abundance expressed (14–23, 36 more than 45 differed among control, seeds. During soil burial, physiological responses effects priming.