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Effect of pH on growth and biochemical responses of Dunaliella bardawil and Chlorella ellipsoidea
The goal of the present investigation was to study the effect of pH on growth and biochemical responses of Dunaliella bardawil and Chlorella ellipsoidea when exposed to different pH values. The twoExpand
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Impact of phosphorus loadings on macro-algal communities in the Red Sea coast of Egypt
This study was undertaken to investigate the impact of phosphorus loadings on the seasonal abundance and diversity of macro-algal communities at three sites of the Egyptian coastal region of the RedExpand
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Pulse feeding with nitrate and phosphate in relation to tissue composition and nutrient uptake by some macroalgae from the Red Sea at Ghardaqa (Egypt)
This investigation aimed at determining the effects of experimental enrichment with either N or P or both elements on the tissue nutrient levels, and on the internal N: P molar ratios of threeExpand
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Toxic Effect of Certain Metals Mixture on Some Physiological and Morphological Characteristics of Freshwater Algae
The toxic effect of multi metals mixture which exist simultaneously in aquatic ecosystem on natural phytoplankton assemblages (green algae, blue-green algae and diatoms) was studied. For this purposeExpand
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Differential effects of thiobencarb toxicity on growth and photosynthesis of Anabaena variabilis with changes in phosphate level.
A thiobencarb dose of 3 mg L(-1) reduced the protein content of Anabaena variabilis, whereas it elevated the carbohydrate content. Measurements of Anabaena growth, photosynthetic activity, andExpand
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Chlorophyll a fluorescence and photosynthetic activity as tools for the evaluation of simazine toxicity to Protosiphon botryoides and Anabaena variabilis.
On studying the effect of simazine on Protosiphon botryoides and Anabaena variabilis, data revealed that chlorophyll a content and dry weight were decreased with the increase in simazineExpand
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Growth criteria of two common cyanobacteria isolated from Egyptian flooded soil, as influenced by some pesticides
Higher rates of the two organophosphorus Insecticides (dimethoate and dursban) induced severe drop in the dry weight gain of Nostoc muscorum and Anabaena oryzae. The fungicide karathane seemed to beExpand
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Effect of pendimethalin on growth and photosynthetic activity of Protosiphon botryoides in different nutrient states.
The effect of pendimethalin on the green alga Protosiphon botryoides was investigated. Results indicate that specific growth rate, cell number, chlorophyll a level, and dry weight yield significantlyExpand
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Effect of thiobencarb on growth and photosynthesis of the soil alga Protosiphon botryoides (Chlorophyta)
The effects of the herbicide thiobencarb (Saturn) were tested on the growth and physiology of the chlorophyte Protosiphon botryoides isolated from an Egyptian paddy. Assays were conducted usingExpand
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Use of laboratory cultures of some algae to predict heavy metal toxicity. I: The role of some heavy metals in the growth, pigmentation, carbohydrate and protein synthesis of Chlorella fusca and
The results clearly show that, within the range of 10 −7 -10 −4 M, hexavalent chromium was most toxic whereas zinc hat little effect on the growth of Chlorella fusca. Above these limits, chromiumExpand
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