نتایج جستجو برای: gracilaria

تعداد نتایج: 812  

2015
F. Shahbazi M. Seyyed nejad A. Salimi A. Gilani

In the present study, the effect of seaweed liquid fertilizer (SLF) of Ulva fasciata, Nizimuddinia zunardini and Gracilaria corticata without chemical fertilizer on seed germination, growth parameter, pigment and carbohydrate content of Wheat var. (Chamran) was investigated. The seeds soaked with aqueous extract of seaweeds performed better when compared to the water soaked controls. The 10% co...

2006
M. S. Thomsen K. McGlathery

Increases in sediment and drift algae accumulations have caused degradation of coastal lagoons worldwide. It is well known that these factors are stressors of seagrass beds, sediment fauna and coral reefs. However, little is known about the impacts on temperate hard-bottom assemblages within soft-bottom lagoons. To test if accumulations of sediment and drift algae (stress) affected recruitment ...

Journal: :ecopersia 0
mohammad khezri ph.d students, department of seafood processing, faculty of marine sciences, tarbiat modares university, noor, iran masoud rezaei professor, department of seafood processing, faculty of marine sciences, tarbiat modares university, noor, iran sana rabiey ph.d students, department of seafood processing, faculty of marine sciences, tarbiat modares university, noor, iran elham garmsiri former m.sc. student, department of seafood processing, faculty of marine sciences, tarbiat modares university, noor, iran

the antibacterial and antioxidant activities of methanol and acetone extracts of three marine algae, including hypnea hamulosa, gracilaria corticata and enteromorpha intestinalis wereinvestigated.antioxidant activities were determined by means of total antioxidant capacity, total phenolic compounds, dpph radical scavenging activity and ferric reducing antioxidant power. antibacterial activity w...

2016
Poh-Kheng Ng Phaik-Eem Lim Siew-Moi Phang

[This corrects the article DOI: 10.1371/journal.pone.0097450.].

2017
Yangyang Gu Kit-Leong Cheong Hong Du

In order to improve the gelling properties of agarose, we modified it by methylation. The agarose was prepared from Gracilaria asiatica, G. bailinae, and G. lemaneiformis with alkaline, treated with diatomaceous earth and activated carbon, and anhydrous alcohol precipitation. The methylation reaction process of agarose was performed with dimethyl sulfate while the chemical structure of low-gell...

Journal: :Biophysical chemistry 2007
Carlos Contreras-Martel Adelio Matamala Carola Bruna German Poo-Caamaño Daniel Almonacid Maximiliano Figueroa José Martínez-Oyanedel Marta Bunster

Phycocyanin is a phycobiliprotein involved in light harvesting and conduction of light to the reaction centers in cyanobacteria and red algae. The structure of C-phycocyanin from Gracilaria chilensis was solved by X-ray crystallography at 2.0 A resolution in space group P2(1). An interaction model between two PC heterohexamers was built, followed by molecular dynamic refinement. The best model ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Aaron P Ramus Brian R Silliman Mads S Thomsen Zachary T Long

While invasive species often threaten biodiversity and human well-being, their potential to enhance functioning by offsetting the loss of native habitat has rarely been considered. We manipulated the abundance of the nonnative, habitat-forming seaweed Gracilaria vermiculophylla in large plots (25 m2) on southeastern US intertidal landscapes to assess impacts on multiple ecosystem functions unde...

Journal: :Journal of phycology 2013
Dinghui Zou Kunshan Gao

The responses of respiration and photosynthesis to temperature fluctuations in marine macroalgae have the potential to significantly affect coastal carbon fluxes and sequestration. In this study, the marine red macroalga Gracilaria lemaneiformis was cultured at three different temperatures (12, 19, and 26°C) and at high- and low-nitrogen (N) availability, to investigate the acclimation potentia...

Journal: :Harmful algae 2017
Carol S Thornber Michele Guidone Christopher Deacutis Lindsay Green Christine N Ramsay Melissa Palmisciano

All three macroalgal clades (Chlorophyta, Rhodophyta, and Phaeophyceae) contain bloom-forming species. Macroalgal blooms occur worldwide and have negative consequences for coastal habitats and economies. Narragansett Bay (NB), Rhode Island, USA, is a medium sized estuary that is heavily influenced by anthropogenic activities and has been plagued by macroalgal blooms for over a century. Over the...

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