Effect of boron and calcium on growth and nitrogen fixation of the blue-green algaCalothrix parietina

El-Zahraa, Fatma; Zaki, Taher Taha

doi:10.1007/bf02816243

Cited by 11 publications

(1 citation statement)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The data of this investigation clearly shows that calcium alleviated the Science Publications AJES toxic effects of copper. Some studies suggested that calcium affects heavy metal toxicity to microbiota and it is playing an important role in ameliorating metal toxicity to algae (Zaki, 1999;Zaki and Fathi, 2004). This protective role is confirmed by cytological investigations (Pellegrini et al, 1993).…”

Section: Discussionmentioning

confidence: 81%

ABOLISHING TOXICITY OF COPPER BY SOME ENVIRONMENTAL FACTORS USING GREEN ALGA <i>CHLORELLA VULGARIS</i>

Fathi¹,

Azooz²,

Al-Fredan³

2012

American Journal of Environmental Sciences

View full text Add to dashboard Cite

A variety of environmental factors are known to modify the toxicity of heavy metals on algae. This study was undertaken to examine the impact of some inorganic and organic complexes on the toxicity of copper using the isolated algal species (Chlorella vulgaris). The data illustrate that the amount of available forms of copper (copper free ions) gradually decreased with increasing the concentrations of all tested inorganic and organic complexes (carbonates, EDTA, Glycine and calcium). The toxicity of a metal is controlled by the concentrations of the available form (s) and not by the total concentration of the metal. In other words, the availability and the toxicity depend on the concentrations of the different physico-chemical forms (speciation) of the metals in their natural environments.

show abstract

Section: Discussionmentioning

confidence: 81%

ABOLISHING TOXICITY OF COPPER BY SOME ENVIRONMENTAL FACTORS USING GREEN ALGA <i>CHLORELLA VULGARIS</i>

Fathi¹,

Azooz²,

Al-Fredan³

2012

American Journal of Environmental Sciences

View full text Add to dashboard Cite

show abstract

Effect of manganese and calcium deficiency on the growth and oxygen exchange ofScenedesmus intermedius cultured for successive generations

Adam

Issa

2000

Folia Microbiol

View full text Add to dashboard Cite

The green alga Scenedesmus intermedius was grown in synchronous culture under manganese or calcium deficiency for six successive generations. The growth rate, pigment and protein contents gradually decreased in comparison with the control. In Mn-deficient cells, the rate of oxygen evolution was sharply decreased. This inhibition was restored to normal in less than 1 h (40-60 min) by adding Mn salt to the suspension medium. In Ca-deficient cells, the inhibition of photosynthesis appears to be irreversible.

show abstract

Evaluation ofTolypothrix germplasm for phycobiliprotein content

Prasanna

Mohammadi

et al. 2003

Folia Microbiol

View full text Add to dashboard Cite

Twenty Tolypothrix strains, including 15 strains of T. tenuis, three strains of T. ceylonica and one strain each of T. nodosa and T. bouteillei, were evaluated for their phycobiliprotein content and composition. Significant differences among the Tolypothrix strains were found at both inter- and intra-specific levels in the production of phycobiliprotein constituents--phycocyanin (PC), allophycocyanin (APC) and phycoerythrin (PE). Four specific parameters, viz. PC or PE content, total phycobiliprotein and total protein content, and percentage of phycobiliproteins, in a mixture of total proteins were used to select four T. tenuis and one T. ceylonica strain as useful for phycobiliproteins production.

show abstract

Effect of boron and calcium on growth and nitrogen fixation of the blue-green algaCalothrix parietina

Cited by 11 publications

References 14 publications

ABOLISHING TOXICITY OF COPPER BY SOME ENVIRONMENTAL FACTORS USING GREEN ALGA <i>CHLORELLA VULGARIS</i>

ABOLISHING TOXICITY OF COPPER BY SOME ENVIRONMENTAL FACTORS USING GREEN ALGA <i>CHLORELLA VULGARIS</i>

Effect of manganese and calcium deficiency on the growth and oxygen exchange ofScenedesmus intermedius cultured for successive generations

Evaluation ofTolypothrix germplasm for phycobiliprotein content

Contact Info

Product

Resources

About