Results 181 to 190 of about 7,949 (217)

Extreme irgarol tolerance in an Ulva lactuca L. population on the Swedish west coast

Marine Pollution Bulletin, 2013
The herbicide irgarol 1051 is commonly used on ship hulls to prevent growth of algae, but as a component of self-eroding paints it can also spread in the surrounding waters and affect non-target organisms. The effect of irgarol on settlement and growth of zoospores from the marine macro algae Ulva lactuca from the Gullmar fjord on the Swedish west ...
Ida, Wendt, Åsa, Arrhenius, Thomas, Backhaus, Annelie, Hilvarsson, Kristina, Holm, Katherine, Langford, Timur, Tunovic, Hans, Blanck   +7 more
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Ulva Lactuca L. Negatively Affects Balanus Balanoides (L.) (Cirripedia Thoracica) in Tidepools

Crustaceana, 1974
L'algue Ulva lactuca a ete un facteur defavorable et a cause la mort de la balane Balanus balanoides dans des aquarium marins a maree artificielle. Il semble que la mortalite soit plus elevee quand l'algue vient en contact physique avec le Balanus. La mortalite est plus faible quand l'algue est presente, mais non en contact avec les balanes.
openaire   +1 more source

Natural preservative ingredient from marine alga Ulva lactuca L.

International Journal of Food Science & Technology, 2009
SummaryThe contents of total chlorophyll (T‐Chl), carotenoids and phenolics compounds were quantified in the biomasses of Ulva lactuca grown either in normal or artificial sea water under indoor conditions. The antioxidant and antibacterial activities of U. lactuca crude organic extracts (Ulva‐COEs) were determined.
Hanaa H. Abd El‐Baky, Farouk K. El‐Baz, Gamal S. El‐Baroty   +2 more
openaire   +1 more source

Isolation, structure, and surfactant properties of polysaccharides from Ulva lactuca L. from South China Sea

International Journal of Biological Macromolecules, 2015
Two polysaccharides (ULP1 and ULP2) were isolated through ultrasonic-assisted extraction from green seaweed Ulva lactuca L. which was collected from the South China Sea. The highest yield of 17.57% was obtained under the conditions of 2% NaOH, 90 °C, material/water mass ratio 1:80, liquid extraction 5h and subsequent ultrasound-assisted extraction 1h ...
Hua, Tian, Xueqiong, Yin, Qinghuan, Zeng, Li, Zhu, Junhua, Chen   +4 more
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Mineral Content of Mediterranean Seaweeds, Padina pavonica L. (Pheophytae, Ulva lactuca L. and Ulva linza L. (Chlorophytae) for Biofertilizing Use

2015
Nowadays, organic fertilizers play an important role in agriculture. They are progressively substituting chemical fertilizers to prevent their harmful impact on human health and the environment. They provide high yield, better quality products and a shorter period of harvesting crops.
Chbani, Asma, Majed, Sandy, Mawlawi, Hiba   +2 more
openaire   +1 more source

The use of Ulva Lactuca L. as an indicator organism for marine pollution

2023
Prolific growth of Ulva lactuca L. in some marine environments into which sewage is discharged causes many problems. An understanding of the reasons for this growth is required so that it can be controlled or prevented. The thesis is concerned with tackling this problem and also investigating whether Ulva lactuca can be used as an indicator organism ...
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Ecological effects of Ulva lactuca L. in Avon-Heathcote Estuary

2006
Macroalgal blooms are increasing world-wide and have negative effects on benthic invertebrates and sediments. These include loss of species diversity and development of hostile sediment environments. This thesis considers ecological effects of Ulva lactuca L., and its mechanical removal on benthic invertebrates and sediments in Avon-Heathcote Estuary ...
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The ecology of sporulation by the macroalga Ulva lactuca L. (chlorophyceae)

Aquatic Botany, 1988
Abstract A field population of Ulva lactuca L. in Mumford Cove in Groton, CT, U.S.A., was monitored from May through October 1985. During warmer months, a significant portion of the macroalga's biomass is allocated to the formation of zoospores and gametes. Laboratory experiments show that U. lactuca could significantly increase the chlorophyll a
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The influence of solution chemistry on REE uptake by Ulva lactuca L. in seawater

Geochimica et Cosmochimica Acta, 1990
Abstract Simultaneous uptake of Ce(III), Eu(III), Gd(III), Yb(III), and Zn(II) by an organic substrate, Ulva lactuca L., was examined in seawater. REE behavior was observed to be strongly dependent on solution complexation. Over a range of carbonate ion concentrations between 10−6 mol kg-soln−1 and 7 × 10−3 mol kg-soln−1, the affinity of Ulva lactuca
Stanley, John K, Byrne, Robert H
openaire   +2 more sources

Alleviation of the Effects of Copper Chloride on Vigna unguiculata (L) using Ulva lactuca

Biochemistry & Physiology: Open Access, 2016
Our environment is polluted from heavy metal using industries. It is due to anthropogenic activities. The heavy metals are in excess is toxic to animals, plants and microorganisms. The excess of copper can affect the entire plant systems. Copper is one of the major source pollutants in ocean and terrestrial.
Duraipandian M, Sevugaperumal R, Ramasubramanian V, Ganesh D   +3 more
openaire   +1 more source