azadeh karimi.jafari; monir hosainzaadeh
Abstract
Saffron (Crocus sativus L.) is amember of Iridaceae family, that especially its stigma and corm are important in medicine and food. Today, silver nanoparticles with antimicrobial and fungal properties are used in many fields and also effects on ethylene receptors in plants. In Iran, due to increase saline ...
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Saffron (Crocus sativus L.) is amember of Iridaceae family, that especially its stigma and corm are important in medicine and food. Today, silver nanoparticles with antimicrobial and fungal properties are used in many fields and also effects on ethylene receptors in plants. In Iran, due to increase saline soils, study on reducing the effects of salinity stress by using nanosilver in plants can be a good perspective to control the effects of salinity stress on plants. For this purpose, an experiment was carried out using four treatments: nano silver (40 ppm), salinity (100 mM NaCl), nano silver (40 ppm) whit salinity (100 mM NaCl), control without any treatment and primary corm, with two irrigations and soaking methods were used. The amount of phosphorous, sodium and potassium ions of treated corms were investigated. Results showed that phosphorous ion in compared with control and primary corm increased in all stresses, which was significant at level (P≤0.05).The concentration of sodium in irrigations methods and potassium in soaking methods increased in salt stress (0.77 mg / gDW)(9.9 mg / gDW), but using salinity stress with nano silver (0.67 mg / gDW)(7.61 mg / gDW) showed a significant decrease in the levels of two mentioned ions (P≤0.05) compared with control(0.73 mg / gDW)(8.08 mg / gDW). In this study, the use of nanosilver particles with salt stress showed that the effects of salinity have been influenced and increased phosphorous ion and modified amount of sodium and potassium.
Azadeh Karimi.jafari; Monir Hossein zadeh namil
Abstract
Saffron (Crocus sativus L.), a member of Iridaceae family, is valuable in pharmacies and food industries. Salinity is one of the growth limiting factors in saffron. Nano silver has many effects on plants ethylene receptors, chlorophylase activity and DNA, also reduces the stress effects in plants. The ...
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Saffron (Crocus sativus L.), a member of Iridaceae family, is valuable in pharmacies and food industries. Salinity is one of the growth limiting factors in saffron. Nano silver has many effects on plants ethylene receptors, chlorophylase activity and DNA, also reduces the stress effects in plants. The effects of nano silver (40 ppm) and salinity stress (100 mM NaCl) on physiological and biochemical properties of saffron corm with compare control (distilled water) were studied under greenhouse condition. The results showed that the number of fiber roots and Proline content in salinity stress plus nano silver and salinity without nano silver were increased but solute carbohydrate content was significantly decreased at level (P<0.05), compare to control. Length of root and carotenoids content in nano silver plus salinity treatment were decreased but dry weight of daughter corms were significantly increased compare with control at level (P<0.05). The results obtained from present study showed that nano silver increased plant defense against salinity stress.
