نتایج جستجو برای: avicennia

تعداد نتایج: 857  

2014
Somdatta Chakravortty

Remote sensing has played a crucial role in mapping and understanding of the spatial pattern of mangrove forests and changes in its areal extent caused by natural disasters and anthropogenic forces. So far traditional pixel-based classification of multispectral imagery has been widely applied for broad mapping of mangrove covers. But the recent and more advanced hyperspectral data taken from se...

2009
Feng Zhu Xin Chen Yihua Yuan Meizhen Huang Huili Sun

Abstract: A diverse array of bioactive compounds have been isolated and characterized from the mangrove plant Avicennia marina and its endophytes. Extensive chemical investigations of the different parts (barks, leaves, twigs, etc.) of the mangrove plant A. marina and its endophytes (mainly endophytic fungi) resulted in the reporting of the isolation of 123 compounds, and most of them are new o...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2008
Daniel Gonzalez-Mendoza Adriana Quiroz Moreno Omar Zapata-Perez

Isolation of high-quality RNA of Avicennia germinans L. tissue is difficult due to high levels of phenols and other substances that interfere when using conventional procedures for the isolation. These substances not only decrease the yield but also the quality of RNA is almost poor. We present here a simple RNA protocol and fast methodology that effectively removes these contaminating substanc...

Journal: :Anais da Academia Brasileira de Ciencias 2007
Flávia Rebelo-Mochel Flávio J Ponzoni

Mangrove communities are tropical systems which have fewer species than tropical forests, especially in Latin America and display a single architecture, usually lacking the various strata commonly found in other forest ecosystems. The identification of mangrove communities by orbital data is not a difficult task but the most interesting challenge is to identify themselves by the dominant specie...

2010
S. Ravikumar S. Shanthy A. Kalaiarasi

Phosphobacteria is one among the soil microorganisms which plays an important role in improving the chemical and physical nature of the soil, adding organic matter to soil, solubilizing the insoluble phosphate increasing availability and utilization of growth and yield. The phosphate solubilizing bacteria, which were inoculated with Avicennia officinalis seedlings, increased significantly the a...

شهیدی, فخری, طباطبایی یزدی, فریده, علیزاده بهبهانی, بهروز, محبی, محبت,

Background and Objective: Avicenniaceae family is a member of true mangrove plants which has one genus, 11 species and several sub species. According to biologically active compounds and traditional uses of the leaves in the traditional medician it, seems that this plant has significant anti-fungal effects. The aim of this study was evaluation of antifungal effect of aqueous and methanolic...

2012
N. B. Dhayanithi

Present study summarizes the control of Vibrio alginolyticus infection in hatchery reared Clownfish, Amphiprion sebae with the extract of the mangrove plant, Avicennia marina. Fishes with visible symptoms of hemorrhagic spots were chosen and the genomic DNA of the causative bacterium was isolated and sequenced based on 16S rDNA gene. The in vitro assay revealed that a fraction of A. marina leaf...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1984
I C Baianu C Critchley Govindjee H S Gutowsky

The role of Cl(-) in photosynthetic O(2) evolution has been investigated by observing the (35)Cl NMR linewidth under a variety of conditions in aqueous suspensions of chloroplasts, primarily for the halophytes Avicennia germinans, Avicennia marina, and Aster tripolium but also for spinach. The line broadening shows there is weak, ionic binding of Cl(-) to thylakoids, the bound Cl(-) exchanging ...

Journal: :Remote Sensing 2013
Werapong Koedsin Chaichoke Vaiphasa

Understanding the dynamics of mangroves at the species level is the key for securing sustainable conservation of mangrove forests around the globe. This study demonstrates the capability of the hyper-dimensional remote sensing data for discriminating diversely-populated tropical mangrove species. It was found that five different tropical mangrove species of Southern Thailand, including Avicenni...

2012
Isabella P. M. Wanderley Costa Leonor Costa Maia Maria Auxiliadora Cavalcanti

With the aim of increasing the knowledge about endophytic fungi, a group of microorganisms with high biotechnological potential and a valuable source of useful metabolites, a survey in leaves of mangrove plants (Avicennia schaueriana, Laguncularia racemosa, and Rhizophora mangle) was performed at the Itamaracá Island, PE, Brazil. Leaves were collected, during two seasons, dry and rainy, superfi...

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