The effect of silicon nanoparticles on the seed germination and growth of Moso bamboo (Phyllostachys pubescens) under cadmium stress.

Cadmium (Cd) as one non-essential element is known to be one of the most toxic metals in the environment, which can influence on seeds and limit plant growth and germination. For this purpose In the current study, the impact of silicon nanoparticles on germination characters and key growth parameters were investigated in moso bamboo seedling under cadmium. Thus Seeds were germinated in the concentration of 100μm Cd alone and as well in a combination of two levels of SiO2NPs (100 and 200 μm) in compare with control treatments. Which have conducted in Petri dishes under laboratory conditions in three replications. To evaluate the effect of Nanoparticles on cadmium, germination characterize including germination percentage(GP), germination rate(GR), germination Index(GI), Mean Germination Time(MGT), and growth parameters such as length of shoot and root as well plant biomass such as shoot and root dry weight and vigor indexes were measured. The results indicated that Si NPs significantly improved, relative to the control, germination characterizes (GP, GR, and GI) under Cd toxicity. Although lead to enhancing mean Germination Time (MGT). In another hand, the results indicated that plant growth indexes and plant biomass and vigor index of Moso bamboo improved under a combination of 100 um Cd with Silicon nanoparticles. We concluded that SiO2NPs could ameliorate cadmium toxic in seed germination, which this enhancement in germination parameters led to improving seedling growth in Moso bamboo under Cd toxicity. In another hand, we suggest that 200umol SiO2NPs has the most impact on seed germination and plant growth of Moso bamboo under 100 um cadmium stress. Thus, the use of Si NPs may help in controlling Cd in the stage of seed germination and seedling growth in Moso bamboo (Phyllostachys pubescens)
Biography:
Abolghassem Emamverdian has completed his Ph.D. at the age of 31 years old from Nanjing Forestry University and two excellent postdoctoral studies from Nanjing Forestry University. He is the Assistant Professor of Bamboo Research Institute, at Nanjing Forestry University. He has published more than ten papers in reputed journals as the first author, and his citation is more than 270. His research is in the field of Plant Abiotic Stress which including the effect of heavy metals on plants.

Author(s): Abolghassem Emamverdian Nanjing Forestry University,China

Abstract | PDF

Share This Article