کشت سلول و بافت 'گیاهی
علیرضا ایرانبخش؛ مرجان آصفی
چکیده
This study investigated the molecular and physiological responses of lemon balm seedlings to the manipulation of nutrient solution with zinc oxide nanoparticle (nZnO) at 0, 100, and 300 mgl-1. The augmentation in biomass accumulation and photosynthetic pigments resulted from the nZnO utilization. The exposure of seedlings to nZnO modifed both primary and secondary metabolism in leaves. The nanosupplements upreguated activities of phenylalanine ammonia lyase and catalase enzymes. Moreover, the incease in concentrations of proline, flavonids, and glutathione resulted from the application of nZnO. ...
بیشتر
This study investigated the molecular and physiological responses of lemon balm seedlings to the manipulation of nutrient solution with zinc oxide nanoparticle (nZnO) at 0, 100, and 300 mgl-1. The augmentation in biomass accumulation and photosynthetic pigments resulted from the nZnO utilization. The exposure of seedlings to nZnO modifed both primary and secondary metabolism in leaves. The nanosupplements upreguated activities of phenylalanine ammonia lyase and catalase enzymes. Moreover, the incease in concentrations of proline, flavonids, and glutathione resulted from the application of nZnO. Furthermore, the nZnO treatments up-regulated the transcription of phenylalanine ammonia-lyase (PAL) and Coumarate: CoA-ligase (4CL) genes, two genes responsible for the production of secondary metabolites. These comparative physiological and molecular investiagtions on plant responses to nZnO and its bulk type may serve as a theoretical basis for function in agricultural and medicinal industries.
کشت سلول و بافت 'گیاهی
لیلا زرندی میاندوآب؛ زهرا اوراقی اردبیلی
چکیده
To gain insight into metal-based nanomaterials, this study figured out the physiological and molecular behaviors of Melissa officinalis to supplementation of nutrient solution with red nano elemental selenium (nSe; 0, 10, and 50 mgl-1) or bulk Se (BSe). The nSe10 application led to drastic increases in root and shoot fresh weights, and chlorophyll content. While, the nSe at 50 mgl-1 exhibited severe phyotoxicity. Also, nSe10 enhanced uptake and accumulation of Ca and Mg in both leaf and root, contrasted to the nSe50-treated plants. The applied supplements modified phenylalanine ammonia lyase activity, ...
بیشتر
To gain insight into metal-based nanomaterials, this study figured out the physiological and molecular behaviors of Melissa officinalis to supplementation of nutrient solution with red nano elemental selenium (nSe; 0, 10, and 50 mgl-1) or bulk Se (BSe). The nSe10 application led to drastic increases in root and shoot fresh weights, and chlorophyll content. While, the nSe at 50 mgl-1 exhibited severe phyotoxicity. Also, nSe10 enhanced uptake and accumulation of Ca and Mg in both leaf and root, contrasted to the nSe50-treated plants. The applied supplements modified phenylalanine ammonia lyase activity, concentrations of flavonids, glutathione, and proline. Moreover, these supplements in the dose and type-dependent manners changed the activities of catalase. Furthermore, the applied treatments up-regulated the expression of phenylalanine ammonia-lyase (PAL) and Coumarate: CoA-ligase (4CL) genes. The comparative physiological and molecular evidence on phytotoxicity and potential advantages of nSe and its bulk counterpart was provided as a theoretical basis for exploiting in food, agricultural, and pharmaceutical industries.
