Valerian (Valeriana officinalis L.) is an important medicinal plant that is widely exploited for its roots and rhizomes which contain valepotriates and valerenic acids (with putative pharmacological activities). Thus root proliferation of valerian is very important. The aim of this study was to establish a practical tissue culture method for rapid and large-scale induction of V. officinalis L. ...

nitrogen (n) affects adversely the tobacco yield quantity and quality as it increases yield, chlorine and nicotine contents, but decrease potassium content. this experiment was aimed at optimization of (the balance between) n concentration in leaf, stem and root to increase both yield quantity and quality (high potassium, low chlorine and medium nicotine contents) using artificial neural networ...

1. Asparagus racemosus is an herb used as a rasayana in Ayurveda. The root of A racemosus is popular for its various medicinal uses such as appetizer, stomachic, tonic aphrodisiac galactogogus etc. In this experiment we have found the shoot induction after 3 weeks when Nodal explants segments were cultured in basal medium supplemented with BAP, Kin and Ads and Shoots induction on MS basal mediu...

The effects of sugar concentration and strength of basal medium were studied to produce plants from somatic embryos in Asparagus of®cinalis L. There was a signi®cant difference among concentrations of sugar but not among kinds of sugar tested in the present experiment in growth of shoots and roots. When the sucrose concentrations were 10, 30, or 50 g lÿ1, the fresh weight of shoots were 31.5, 1...

Background: Bacterial Extracellular Polymeric Substances (EPS) are environmental friendly and versatile polymeric materials that are used in a wide range of industries such as: food, textile, cosmetics, and pharmaceuticals. To make the production process of the EPS cost-effective, improvements in the production yield is required which could be implemented through application of processes such a...

Isolated porcine thyroid cells reorganize in culture into various types of multicellular structure, which differ in the orientation of cell polarity and in the surface of the cell layer accessible to molecules present in the culture medium. The types of structure are: (1) follicles: the basal pole is oriented toward the medium; (2) inside-out follicles or monolayers: the apical pole is facing t...

We report that dipyridamole is neuroprotective for a variety of rat embryonic CNS neurons cultured in serum-free basal medium lacking trophic factors or other additives. We also describe the mechanism underlying this action. Neurons died rapidly in basal medium but were rescued in large measure by 10 microM dipyridamole. The protective action of dipyridamole seems to be attributable to its anti...

selected genotypes of sugar beet are often maintained by conventional propagation, but much faster rates of multiplication can be now obtained through micropropagation. on the other hand, plant micropropagation using bioreactors can decrease the cost of production and makes it an economical method. in this research, the possibility of using bioreactor and optimization of the tissue culture proc...