So further experiments were carried out by sowing pretreated seeds.
The results above provide a basic demonstration for applying ultrasound to pretreat switchgrass seeds.
The positive impact on the physiological state of seedlings under drought conditions was found basing on the change of the relative water content in the leaves, which was higher in seedlings from seeds pretreated with a colloidal solution of NPs (Fig. 5).
Briefly, root tips were harvested from germinated seeds, pretreated in 4°C water for 2 4 h to capture pro-metaphase and metaphase cells, and fixed in Carnoy's solution (3 ethanol: 1 glacial acetic acid).
Cells were seeded, pretreated with BSO (400 μ M) for 24 h followed by treatment with L-PAM (30 μ M).
Rice (Oryza sativa) seeds pretreated with ABA had improved salt-tolerance, with lower Na+ and Cl– levels and Na+/K+ ratio as well as higher K+ and Ca2+ concentrations, proline accumulation, soluble sugar content, and grain yield [ 13].
Root tips were harvested from germinated seeds, pretreated in 0.002 M 8-hydroxyquinoline at room temperature for 2 h to accumulate metaphase cells, and fixed in methanol:glacial acetic acid (3:1).
Cells (90 μl) were seeded, pretreated with 10 μg/ml F ab′ 2 epratuzumab (provided by UCB Celltech, Slough, UK) for 15 minutes and stimulated with 2.5 μg/ml CpG 2006 (TIB MOLBIOL Syntheselabor, Berlin, Germany) and/or 2 μg/ml F ab′ 2 anti-human IgM/IgG (anti-BCR; Jackson ImmunoResearch, Suffolk, UK) for 48 hours at 37 °C in 5 % CO2 [ 4].
We should know which one is the pesticide and which foods it is going into. 4. Pre-treated seeds doused in chemicals: It's called an accelerating agent, and seeds are pretreated before they are ever even put in the ground.
When seeds were pretreated with 100 mM of fluridone, no difference was observed in the inhibition of exogenous ABA on seed germination and the cotyledon greening (Figure S1).
