Carotenoids were separated from the wild type yeast
R.mucilaginosa (A23) and its UV mutant at (254 nm)
R.mucilaginosa (A23-M) using thin layer chromatography
(TLC).The results showed the wild type yeast gave three color
patches, β-Carotene,Torule
ne and Torularhodin with Rf values of
0.9, 0.7 and 0.2 respectively, while the mutant yeast gave only one
spot of color ofTorularhodin at thethe value of Rf = 0.2. Carotenoid
produced by mutant yeast R.mucilaginosa (A23-M) was purified
using a column stocked with polychlorinated Hyflo Super Cel and
magnesium oxide with a ratio of (1: 2). The purified carotenoid was
analyzed by high performance liquid technology chromatography
HPLC at a wavelength 495 nm showing that there was only one
colored compound which was Torularhodin
The lack of information about the cultivation of coriander plant in Syria prompted us
to study the effect of four plant densities (33.33،10، 13.33 and 20 plant/m2)، and four levels
of phosphate fertilization (0107.2،160.8، and 214.4 of Superphospha
te 46%) on some
productive and quality traits of the coriander plant. This study was carried out in Tartous
province during the growing season 2014، using Randomized Complete Block design with
a Split Plot arrangement of treatments. The Results revealed that there were significant
differences between the treatments for the whole traits، in addition to a significant
interaction between density and phosphate fertilization. Although the densities (10، 13.33
and 20 plant/m2) varied in their effect، they had superiority upon the
control(33،33)plant/m2، and the density 10 plant/m2 had more important effect in terms of
increasing each of: branches number/plant، seed weight/plant، seeds number/inflorescence،
protein content in plants and seeds and beta carotene and chlorophyll. However، the level
160.8k.g/h of P2O5 increased the number of inflorescences/plant، number of fruits/plant
and seed weight/ inflorescence.
