Hairy roots of horseradish (Armoracia rusticana) were induced by inoculation with Agrobacterium rhizogenes harboring Ri plasmid and cultured on phytohormone-free Murashige and Skoog medium after eliminating the bacteria. Hairy roots grew vigorously and sometimes formed yellowish calli under dark conditions. On the other hand, growth of hairy roots stopped after several weeks of culture with lig...

Agrobacterium rhizogenes is a pathogenic bacteria that causes hairy root disease by transferring bacterial DNA into the plant genome. It is an essential tool for industry and research due to its capacity to produce genetically modified roots and whole organisms. Here, we identified and characterized small RNAs generated from the transfer DNA (T-DNA) of A. rhizogenes in hairy roots of common bea...

background and objectives: many nepeta species have been commonly used in iranian folk medicine as tranquilizer, relaxant, carminative and restorative tonic for nervous and respiratory disorders. inflammation is a problem in many diseases and has an important role in brain function that can cause neurodegenerative disorders. inflamed glial cells can exacerbate neurodegenerative diseases by prod...

Stilbenes are defense molecules produced by grapevine in response to stresses including various elicitors and signal molecules. Together with their prominent role in planta, stilbenes have been the center of much attention in recent decades due to their pharmaceutical properties. With the aim of setting up a cost-effective and high purity production of resveratrol derivatives, hairy root lines ...

Free radicals play an important role in pathological processes such as aging and developing cancer; hence, natural products inhibit free radical production, and can play an important role in preventing diseases. We aimed to evaluate the scavenging activity of free radicals, reducing power, inhibition of lipid peroxidation and malondialdehyde (MDA) formation, and the antioxidant composition of r...

Lactuca serriola L. is a herbaceous species, used for human nutrition and medicinal purposes. The high antioxidant capacity of L. serriola indicates the possibility of enhancing its edible and health potential by increasing the flavonoid and phenolic contents. The present study aimed at enhancing the production of phenolics and flavonoids by hairy root cultures in Lactuca serriola transformed w...

Trees in the genus Populus (poplar) contain phenolic secondary metabolites including the proanthocyanidins (PAs), which help to adapt these widespread trees to diverse environments. The transcriptional activation of PA biosynthesis in response to herbivory and ultraviolet light stress has been documented in poplar leaves, and a regulator of this process, the R2R3-MYB transcription factor MYB134...

Withania somnifera (L.) Dunal is an important medicinal plant with many pharmaceutical and therapeutic uses ranging from immunomodulation to anticancer property. Field cultivation of W. somnifera is time consuming and it not able to meet current global demands. For commercial production of withanolides, field grown plant materials have generally been used but the quality and uniformity in the l...

Miraculin, a taste modifier, is protein that was first isolated from miracle fruit (Richadella dulcifica). It can change sour into sweet when acids are consumed, although it does not elicit response. Miraculin may have the potential in industry as substitute for sugars and artificial sweeteners. Since plant has low productivity, mass production of miraculin limited. Transgenic hairy root cultur...