* Craterostigma plantagineum can lose up to 96% of its water content but fully recover within hours after rehydration. The callus tissue of the plant becomes desiccation tolerant upon pre-incubation with abscisic acid (ABA). In callus and vegetative organs, ABA addition and water depletion induce a set of dehydration-responsive genes. * Previously, activation tagging led to the isolation of Cra...

The natural occurrence of free cytokinins was examined in relation to the growth of serially propagated pea-root callus tissue cultures. The relatively slow-growing pea-root callus was harvested at regular intervals throughout a 12-week period and fresh weight, dry weight, cell number, and cytokinin activity were determined. At the end of the culture period the fresh weight had increased about ...

Echium amoenum Fisch. & Mey. (Boraginaceae) is a very popular medicinal plant that is used as a tonic, tranquillizer, diaphoretic, and a remedy for cough, sore throat and pneumonia in traditional medicine of Iran. Callus culture of medicinal plants is one of the ways for production of secondary metabolites. In this study, we investigated callus culture of E. amoenum and the major secondary meta...

Mature embryo is an excellent explant for tissue culture as it is convenient to be obtained without limitation of growing seasons and development stages. However, regeneration ability of the calli from wheat mature embryos is limited, thus hindering its application. To identify genes associated with the tissue culture response (TCR) of wheat, QTLs for callus induction from mature embryos and ca...

Purwaceng (Pimpinella alpina) is an herbal plant that has aphrodisiac, diuretic, and tonic properties. The imbalance between the growth exploitation of this makes it included in Appendix I (endangered), so its conservation will be crucial. One method tissue culture. This considered one way to induct callus. research objective find effect various treatments regulator concentrations NAA. 2,4 D co...

Echium amoenum Fisch. and C.A. Mey. (Boraginaceae) is a very popular medicinal plant which is used as a tonic, tranquillizer, diaphoretic, cough remedy, sore throat and pneumonia in Iran’s traditional medicine. Callus culture of medicinal plants is one of the ways for production of secondary metabolites. In this study, callus culture of E. amoenum and its major secondary metabolite were investi...

Echium amoenum Fisch. & Mey. (Boraginaceae) is a very popular medicinal plant that is used as a tonic, tranquillizer, diaphoretic, and a remedy for cough, sore throat and pneumonia in traditional medicine of Iran. Callus culture of medicinal plants is one of the ways for production of secondary metabolites. In this study, we investigated callus culture of E. amoenum and the major secondary meta...

A review of the world's literature indicates that almost all parts of a plant can be induced to form callus if given the proper stimulus. For some plants the callus can be redifferentiated to form shoots and roots. For others, it is possible to initiate embryoids. There appears to be no reason why forest trees can not be propagated by means of tissue culture. INTRODUCTION Research in propagatio...