Photochemistry ofAcetabulariaRhodopsin II from a Marine Plant,Acetabularia acetabulum

Biochemistry ◽  
2011 ◽  
Vol 50 (41) ◽  
pp. 8888-8898 ◽  
Author(s):  
Takashi Kikukawa ◽  
Kazumi Shimono ◽  
Jun Tamogami ◽  
Seiji Miyauchi ◽  
So Young Kim ◽  
...  
Author(s):  
Muhammad Danish Siddiqui ◽  
Arjumand Z Zaidi

<span>Seaweed is a marine plant or algae which has economic value in many parts of the world. The purpose of <span>this study is to evaluate different satellite sensors such as high-resolution WorldView-2 (WV2) satellite <span>data and Landsat 8 30-meter resolution satellite data for mapping seaweed resources along the coastal<br /><span>waters of Karachi. The continuous monitoring and mapping of this precious marine plant and their <span>breeding sites may not be very efficient and cost effective using traditional survey techniques. Remote <span>Sensing (RS) and Geographical Information System (GIS) can provide economical and more efficient <span>solutions for mapping and monitoring coastal resources quantitatively as well as qualitatively at both <span>temporal and spatial scales. Normalized Difference Vegetation Indices (NDVI) along with the image <span>enhancement techniques were used to delineate seaweed patches in the study area. The coverage area of <span>seaweed estimated with WV-2 and Landsat 8 are presented as GIS maps. A more precise area estimation <span>wasachieved with WV-2 data that shows 15.5Ha (0.155 Km<span>2<span>)of seaweed cover along Karachi coast that is <span>more representative of the field observed data. A much larger area wasestimated with Landsat 8 image <span>(71.28Ha or 0.7128 Km<span>2<span>) that was mainly due to the mixing of seaweed pixels with water pixels. The <span>WV-2 data, due to its better spatial resolution than Landsat 8, have proven to be more useful than Landsat<br /><span>8 in mapping seaweed patches</span></span></span></span></span></span></span></span></span></span></span></span></span></span><br /><br class="Apple-interchange-newline" /></span></span></span></span></span>


1999 ◽  
Vol 50 (330) ◽  
pp. 139-140
Author(s):  
M. Ikeda ◽  
H. Rahman ◽  
C. Moritani ◽  
K. Umami ◽  
Y. Tanimura ◽  
...  

Author(s):  
Jodie Schlaefer ◽  
Alex Carter ◽  
Severine Choukroun ◽  
Robert Coles ◽  
Kay Critchell ◽  
...  

Author(s):  
Antoine De Ramon N'Yeurt ◽  
Viliamu Iese

Climate change is forcing farmers in Small Island Developing States to find novel methods to maintain crop productivity. Past practices using chemical fertilizers and poor waste management severely damaged many coastal areas, leading to an ecosystem shift towards algal dominance. In this chapter, the authors propose an approach to deal with this issue by devising methods which divert excess marine plant biomass into agricultural uses through conversion of the biomass to solid and liquid fertilizers. Seaweed-based fertilizers have already been tried with much success on crops in some developed countries, but these are expensive to import into Pacific Islands. The authors also suggest empowering local communities with the knowledge to convert marine plant biomass into ecologically friendly fertilizers. They will be able to save on the purchase of commercial fertilizers detrimental to the environment, while at the same time reducing the spread of seaweeds on their coral reefs. Farmers' incomes will increase.


Author(s):  
Verónica Miguel ◽  
Jon A. Otero ◽  
Borja Barrera ◽  
Idania Rodeiro ◽  
Julio G. Prieto ◽  
...  

AbstractThe aqueous ethanolic extract from leaves of the marine plantTo evaluate the interaction of ABCG2/BCRP with the extract, studies in cells overexpressing human BCRP transporter and its murine ortholog Bcrp1 were performed.extract could be included as MDR modulator, as interaction with ABCG2/BCRP has been shown through flow cytometry and MTT assays. The cells overexpressing ABCG2/BCRP in the presence of the extract (25–150 μg/mL) decreased the survival rates of the anti-tumoral mitoxantrone. Our results support its inclusion as a possible MDR modulator against tumor cells that overexpress ABCG2/BCRP.


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