The objective of current study was to determine the effects of non-thermal atmospheric plasma (NTAP) on physiological features of Black Cumin seeds. Black Cumin seeds were divided into 4 groups: one control group and three experimental groups. The experimental groups were exposed to NTAP for 5, 10 and 20 minutes, respectively. Then the seeds of the experimental and control groups grew for 21 days. Subsequently, total sugar levels, total flavonoid, malondialdehyde (MDA) levels and the activities of superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX) enzymes were evaluated. The results showed that the concentration of sugar, total flavonoids and total proteins in the experimental groups increased significantly compared to the control group. SOD, CAT and APX activity decreased in all NTAP- treated plant significantly compared to the control group. It can be concluded that Black Cumin seed treating with non-thermal atmospheric plasma treatment may increase plant resistance by changing the enzymatic antioxidant system. پرونده مقاله

Nanotechnology is a field of research related to physics, chemistry, engineering sciences with the application of new techniques and production of nanoscale materials and an emerging field in interdisciplinary research especially biotechnology. Camelina is an oilseed and re-emerging plant that requires a lot of research on its oil production process. This study was conducted to investigate the effect of biosynthesized silver nanoparticles on the expression level of FAE1 and FAD2 in Soheil cultivar of Camelina oilseed plant based on a completely randomized design with four replications in 2018-2019. The aqueous extract of Camelina leaf and silver nitrate salt was used to prepare the nanoparticles. Experimental treatments included 0.5, 1, 2 and 3 mg / L of silver nanoparticles. After the preparation of foliar samples for all treatments, RNA extraction, cDNA synthesis and temperature gradient determination, the Real Time PCR reaction was used to study gene expression patterns. Data were then analyzed using GenEX and SAS software. The results showed that the effect of silver nanoparticles on FAE1 and FAD2 gene expression was significant (p<0.05) and the effect was increased with increasing silver nanoparticle concentration. The highest enhancement was observed at 3 mg / L silver nanoparticles. پرونده مقاله