کشت سلول و بافت 'گیاهی
The effect of ascorbic acid on rooting of Tradescantia fluminensis cuttings

لیلا زرندی میاندوآب

دوره 2، شماره 4 ، اسفند 1400، ، صفحه 31-40

http://dx.doi.org/10.30495/rkctc.2022.67082.1039

چکیده
  Ascorbic Acid (AsA) is a powerful antioxidant, vitamin, and enzyme cofactor that has significant effects on plant growth and development. A study was performed to investigate the effects of AsA on the formation and growth of adventitious roots in cuttings of Tradescantia fluminensis. The plants were treated with two levels of AsA (0, and 0.5 mM). Lengths and numbers of adventitious roots, free amino acid content, hydrogen peroxide content, ascorbate-peroxidase activity, and AsA/ Dehydroascorbate (DHA) ratio were measured. Application of 0.5 mM AsA reduced the number of adventitious roots but did ...  بیشتر

کشت سلول و بافت 'گیاهی
Elemental selenium nanoparticles contributed to changes in primary and secondary metabolism in Lemon balm by affecting gene expression and cellular redox status

لیلا زرندی میاندوآب؛ زهرا اوراقی اردبیلی

دوره 2، شماره 3 ، مهر 1400، ، صفحه 32-39

http://dx.doi.org/10.30495/rkctc.2022.67085.1042

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