The cultivation of single cells of Nicotiana tabacum L. var. "Samsun" and Phaseolus vulgaris L. var. "Early Golden Cluster" on a thin agar layer in Petri dishes is described. Under these conditions about 20 per cent of the cells divided repeatedly and established tissue clones which could be isolated and maintained as growing tissue cultures. It was possible also to follow the successive divisi...

Gesellschaft für Biotechnologische Forschung, Mascheroder Weg, D-3300 Braunschweig-Stöckheim, Bundesrepublik Deutschland Z. Naturforsch. 42c, 69—72 (1987); received August 21/September 22, 1986 Agrobacterium rhizogenes, Alkaloids, Nicotine, Cytisine, Nicotiana, Spartium The growth of root hairs from stems of Nicotiana tabacum and Spartium junceum was induced by Agrobacterium rhizogenes. Stem ro...

The CLE family (CLAVATA3/embryo surrounding region-related), a class of small secreted proteins, play important roles in plant development and stress responses. Members the have been characterized number species, including Arabidopsis rice. However, limited information is available about peptides tobacco (Nicotiana tabacum) related Nicotiana species. Here we report identification 84 members thr...

ClC Cl(-) channels are found in almost all organisms, ranging from bacteria to mammals, in which nine Cl(-) channels belonging to the ClC family have been identified. The biophysical properties and physiological functions of ClC Cl(-) channels have been extensively reviewed. In this short review, we will focus on recent results obtained on the X-ray structure and functional properties of the pr...

Background Controlling infectious disease using medicinal plants is the oldest healthcare known to mankind. Regardless of the enormous advances observed in modern medicine, medicinal plants are still playing vital roles. However, only a small proportion of medicinal plants are examined for bioactive compounds which may vary in different factors. This study aimed to evaluate phytochemical consti...

effects of excess concentrations of boron on major cell wall components of tobacco cells(nicotiana tabacum l. cv. burley 21) were studied. pectin, xyloglucan, hydroxyproline-richglycoproteins (extensin), and arabinogalactan proteins were characterized. results showedthat increased boron supply resulted in significant decrease in cell and cell wall dry weights.also, high concentrations of boron ...