Modification of Photosynthetic Pigments, Osmotic Solutes and Ions Accumulation in Chlorella vulgaris and Wheat Cv. Sds-1 Seedlings under the Influence of NaCl with Salicylic Acids

2011 ◽  
Vol 6 (3) ◽  
pp. 100-111 ◽  
Author(s):  
A.M. Ismail ◽  
M.F. Abou Alhamd ◽  
H.R.M. Galal ◽  
F.A. Nasr-Eldee
Keyword(s):  
Chlorella Vulgaris ◽  
Photosynthetic Pigments ◽  
Osmotic Solutes ◽  
Salicylic Acids

scholarly journals Influence of Color Temperature of White LED Diodes and Illumination Intensity on the Content of Photosynthetic Pigments in Chlorella vulgaris Algae Cells

Proceedings ◽  
2019 ◽  
Vol 16 (1) ◽  
pp. 46
Author(s):  
Paweł Kondzior ◽  
Damian Tyniecki ◽  
Andrzej Butarewicz
Keyword(s):  
Organic Matter ◽  
Chlorophyll A ◽  
Chlorella Vulgaris ◽  
Photosynthetic Pigments ◽  
White Light ◽  
Illumination Intensity ◽  
Color Temperature ◽  
Chlorophyll B ◽  
Chl A ◽  
Warm White Light

The purpose of this paper is to determine the influence of color temperature of Light Emitting Diode (LED) diodes and illumination intensity on the content of photosynthetic pigments of chlorophyll a, chlorophyll b and carotenoids in Chlorella vulgaris algae cells. Choosing the right color temperature and intensity of illumination can favorably affect the growth of algae. In particular, it can contribute to the efficiency of the photosynthesis process and the amount of produced biomass from Chlorella vulgaris algae. In the spectrophotometric studies, the highest content of chlorophyll a, chlorophyll b and carotenoids was found in cultures illuminated with very cold white light (8500 K) with an intensity of 500 μmol/m2s. The highest measured content of chlorophyll a (Chl a) pigments was 48.29 mg/L, Chl b pigment was 23.25 mg/L and carotenoids pigment was 12.65 mg/L; the smallest content of pigments for Chl a (11.48 mg/L), Chl b (4.69 mg/L) and carotenoids (3.03 mg/L) was found in the sample illuminated with warm white light (3200 K) with an intensity of 50 μmol/m2s. The highest amount of dry organic matter amounting to 2.0 g/L was found in a sample illuminated with warm white light (3200 K) with an intensity of 250 μmol/m2s, then 1.91 g dry organic mass (DOM)/L for very cold white light with an intensity of 250 μmol/m2s, and 1.48 g DOM/L for very cold white light with an intensity of 50 μmol/m2s. The obtained results show that a higher content of photosynthetic pigments does not directly affect the increase of the amount of dry organic matter.

Influence of Metal-Containing Nanoparticles on the Content of Photosynthetic Pigments of Unicellular Alga Chlorella vulgaris Baijer

2017 ◽  
Vol 13 ◽  
pp. 255-262 ◽  
Author(s):  
Yuri N. Morgalev ◽  
Alexander V. Kurovsky ◽  
Irina A. Gosteva ◽  
Tamara G. Morgaleva ◽  
Sergey Yu. Morgalev ◽  
...  
Keyword(s):  
Chlorella Vulgaris ◽  
Photosynthetic Pigments ◽  
Control Sample ◽  
Culture Solution ◽  
Dual Phase ◽  
Unicellular Alga ◽  
Concentration Effects ◽  
Non Linear ◽  
High Concentrations ◽  
Monotone Decrease

The research studies concentration effects and influence of nCeO2, nZnO, nNi and nPt on photosynthetic pigments in Chlorella v. B. in conditions of homeostated lab cultivation. It was shown that dependency of the content of chlorophylls and carotenoids in chlorella cells on concentrations of nCeO2, nZnO and nPt has non-linear dual-phase character. Growing concentrations of nNi in the culture solution caused monotone decrease of all photosynthetic pigments in chlorella cells. Adding 0.1 mg/L nZnO in the suspension caused a statistically significant increase of the chlorophyll a and b content (27.1 % and 64.2 % respectively) in comparison with the control sample. NPs Pt at 1 mg/L induced stimulating effect on chlorophylls a (17.4 % compared to the control) and b (23.6 % compared to the control) in chlorella cells. The number of carotenoids had a statistically significant decrease in chlorella cells by 25-70 % at high concentrations (1-10 mg/L) for all tested NPs.

Utilization of sugarcane industry effluent for high value biomass and photosynthetic pigments production of Chlorella vulgaris (PSBDU06)

2019 ◽  
Vol 7 ◽  
pp. 100260 ◽  
Author(s):  
B. Jasmin Nivetha ◽  
S.V. Bhakyalakshmi ◽  
S. Dinesh Kumar ◽  
P. Santhanam ◽  
D. Vijayalakshmi ◽  
...  
Keyword(s):  
Chlorella Vulgaris ◽  
Photosynthetic Pigments ◽  
Industry Effluent ◽  
Sugarcane Industry

scholarly journals Fluoranthene induced changes in photosynthetic pigments, biochemical compounds and enzymatic activities in two microalgal species: Chlorella vulgaris Beijerinck and Desmodesmus subspicatus Chodat

2014 ◽  
Vol 3 (1) ◽  
pp. 41-55 ◽  
Author(s):  
Miral Patel ◽  
JI Nirmal Kumar ◽  
KK Tiwari
Keyword(s):  
Chlorella Vulgaris ◽  
Photosynthetic Pigments ◽  
Photosynthetic Pigment ◽  
Enzymatic Activities ◽  
Variable Amount ◽  
Biochemical Compounds ◽  
Desmodesmus Subspicatus ◽  
Metabolic Activities ◽  
Induced Changes ◽  
Microalgal Species

The photosynthetic pigments, biochemical and enzymatic activities in two freshwater microalgal species, Chlorella vulgaris and Desmodesmus subspicatus at different fluoranthene concentrations were compared with the control conditions. During 16-days of incubation period when treated with fluoranthene, both microalgal species exhibited variable amount of photosynthetic pigment, biochemical compounds and enzymatic activities. The addition of fluoranthene at concentrations ranged from 1.5 mg l-1; to 10 mg l-1; to microalgal cultures led to changes in all different metabolites but the patterns varied from species to species. Among the two species tested, pigment, biochemical and enzymatic contents were remarkably declined from 7 % to 95% in C. vulgaris. Moreover, all metabolites in D. subspicatus also diminishing significantly by 3% to 88% of fluoranthene doses (10ppm). These results suggest that fluoranthene-induced changes of pigments, biochemical and enzymatic variations in test microalgae, D. subspicatus and C. vulgaris, might reveal its resistance and ability to metabolize PAHs. At the same time, the PAH impact changes on different metabolic activities were higher at 12 and 16 days than at 4 and 8 days in treated microalgae. DOI: http://dx.doi.org/10.3126/ije.v3i1.9941 International Journal of Environment Vol.3(1) 2014: 41-55

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