| antiviral properties of a mangrove plant, rhizophora apiculata blume, against human immunodeficiency virus. | a polysaccharide extracted from the leaf of rhizophora apiculata (rap) was assessed in cell culture systems, for its activity against human and simian immunodeficiency viruses. rap inhibited hiv-1 or hiv-2 or siv strains in various cell cultures and assay systems. it blocked the expression of hiv-1 antigen in mt-4 cells and abolished the production of hiv-1 p24 antigen in peripheral blood mononuclear cells (pbmc); the 50% effective concentration (ec50) of rap in hiv-1 infected mt-4 cells and in ... | 1999 | 10669261 |
| free radical scavenging activity of the marine mangrove rhizophora apiculata bark extract with reference to naphthalene induced mitochondrial dysfunction. | rhizophora apiculata bark extract was tested for its free radical scavenging activity and protective role against mitochondrial dysfunction in naphthalene stressed rats. lipid peroxidation activity was increased and activity of mitochondrial enzymes (cytochrome-c-oxidase, nadh-dehydrogenase, alpha-ketoglutarate dehydrogenase and succinate dehydrogenase) and glutathione was decreased in the liver and kidney of rats intoxicated with naphthalene when compared to control rats. intraperitoneal admini ... | 2006 | 16860784 |
| antihyperglycemic activity of rhizophora apiculata bl. in rats. | the article reveals the antihyperglycemic activity of the ethanolic extract of the roots of the rhizophora apiculata in rats (glm and stz models). on further fractionation of the ethanolic extract into four fractions, the activity was localized in the chloroform and aqueous fractions. these on purification led to the isolation of 7 pure compounds--lupeol (1), oleanolic acid (2), beta-sitosterol (3), palmitic acid (4), beta-sitosterol-beta-d-glucoside (5), inositol (6), and pinitol (7). the inosi ... | 2006 | 17393654 |
| microbial flora associated with submerged mangrove leaf litter in india. | we studied the microbial flora in decomposing mangrove leaves in relation to changes in nitrogen and tannin levels, and in penaeid prawn assemblages. senescent leaves of two mangrove species (rhizophora apiculata and avicennia marina) kept in nylon bags, were separately immersed for 80 days in five tanks full of mangrove water. a known amount of decomposing leaves was collected every ten days from each tank for microorganism counts, total nitrogen and tannin measurement, and juvenile penaeid pra ... | 2007 | 19069754 |
| fatty acids in an estuarine mangrove ecosystem. | fatty acids have been successfully used to trace the transfer of organic matter in coastal and estuarine food webs. to delineate these web connections, fatty acid profiles were analyzed in species of microbes (azotobacter vinelandii, and lactobacillus xylosus), prawns (metapenaeus monoceros and macrobrachium rosenbergii) and finfish (mugil cephalus), that are associated with decomposing leaves of two mangrove species, rhizophora apiculata and avicennia marina. the fatty acids, except long chain ... | 2010 | 20527460 |
| antibacterial activity of some medicinal mangroves against antibiotic resistant pathogenic bacteria. | the antibacterial activity of the leaves and bark of mangrove plants, avicennia marina, a. officinalis, bruguiera sexangula, exoecaria agallocha, lumnitzera racemosa, and rhizophora apiculata was evaluated against antibiotic resistant pathogenic bacteria, staphylococcus aureus and proteus sp. soxhlet extracts of petroleum ether, ethyl acetate, ethanol and water were prepared and evaluated the antibacterial activity using agar diffusion method. most of the plant extracts showed promising antibact ... | 2010 | 20838519 |
| in vitro antiplasmodial activity of ethanolic extracts of mangrove plants from south east coast of india against chloroquine-sensitive plasmodium falciparum. | malaria is one of the most prevalent infectious diseases in the world. treatment for malaria is commonly inadequate due to the lack of quality assured effective drugs. the effectiveness of these drugs is declining at an ever accelerating rate, with consequent increase in malaria related morbidity and mortality. the newest antiplasmodial drug from plants is needed to overcome this problem. numerous mangroves and mangal associates are used as folklore medicine to treat various human diseases. the ... | 2010 | 20978786 |
| mangrove plants as a source of lead compounds for the development of new antiplasmodial drugs from south east coast of india. | malaria is the world's leading killer among the infectious diseases. the treatment of malaria is mystified by the challenges of widespread resistance of the malaria parasites to cheap and affordable antimalarial drugs. the present study was made in an attempt to identify the in vitro antiplasmodial activity against mangrove plant parts. (avicennia marina, acanthus ilicifolius, bruguiera cylindrica, excoecaria agallocha, rhizophora apiculata, and rhizophora mucronata mangrove plant extracts exhib ... | 2010 | 21120528 |
| dissolved iron supply limits early growth of estuarine mangroves. | three mesocosm experiments were performed in an outdoor facility to quantify the responses of five mangrove species grown from seedling to sapling stage to increasing rates of dissolved iron supply. stem extension and biomass of mangroves were measured in the first two experiments, and in the third experiment, rates of microbial iron reduction were measured in relation to stem extension of two mangrove species. in all experiments, mangrove growth was enhanced by increasing iron supply, although ... | 2010 | 21141184 |
| involvement of physical parameters in medium improvement for tannase production by aspergillus niger fetl ft3 in submerged fermentation. | aspergillus niger fetl ft3, a local extracellular tannase producer strain that was isolated from one of dumping sites of tannin-rich barks of rhizophora apiculata in perak, malaysia. this fungus was cultivated in 250 ml erlenmeyer flask under submerged fermentation system. various physical parameters were studied in order to maximize the tannase production. maximal yield of tannase production, that is, 2.81 u per ml was obtained on the fourth day of cultivation when the submerged fermentation wa ... | 2011 | 21826273 |
| Insulin-like antigen of mangrove leaves and its anti-diabetic activity in alloxan-induced diabetic rats. | The objective of this study was to evaluate the anti-diabetic potential of three mangrove plants, Rhizophora mucronata, Rhizophora apiculata and Rhizophora annamalayana, and to detect the presence of their insulin-like protein. The in vivo anti-diabetic experiment was done on male albino Wister rats. Oral administration of 60?mg?kg(-1) leaf powder extract of the three different mangrove plants for 30 days modulated the parameters such as blood glucose, plasma insulin, body weight, total haemoglo ... | 2011 | 22017188 |
| evaluation of immunostimulant activity and chemoprotective effect of mangrove rhizophora apiculata against cyclophosphamide induced toxicity in balb/c mice. | chemotherapeutic drugs available today are immunosuppressant, cytotoxic and with variety of side effects in cancer chemotherapy. plant based immunomodulators are often an auxiliary therapy to overcome the repulsive effects of cytotoxic chemotherapeutic agents and to restore immunity with normal health. mangroves rhizophora apiculata (r. apiculata) extract was found to protect mice from cyclophosphamide (ctx) induced leukopenia. the leukocyte counts in the r. apiculata extract treated animals was ... | 2012 | 22211366 |
| effects of saline tolerant azospirillum species on the growth parameters of mangrove seedlings. | five species of azospirillum isolated from manakkudi mangrove ecosystem were subjected for their efficiency to find out their growth parameters potential for the successful establishment of mangrove seedlings. of the isolated five azospirillum species, azospirillum lipoferum (60%) was found to be the dominant one. but the level of maximum indole acetic acid (iaa) production (19.8 mg.ml(-1)) and nitrogen fixation (5.9 c2h2hr1) was identified with a. brasilense. further, a. brasilense showed signi ... | 2012 | 23734462 |
| isolation and expression analysis of novel silicon absorption gene from roots of mangrove (rhizophora apiculata) via suppression subtractive hybridization. | silicon (si) is the second most abundant element in soil after oxygen. it is not an essential element for plant growth and formation but plays an important role in increasing plant tolerance towards different kinds of abiotic and biotic stresses. the molecular mechanism of si absorption and accumulation may differ between plants, such as monocotyledons and dicotyledons. silicon absorption and accumulation in mangrove plants are affected indirectly by some proteins rich in serine and proline amin ... | 2014 | 24516858 |
| culturable bacterial endophytes isolated from mangrove tree (rhizophora apiculata blume) enhance seedling growth in rice. | endophytic bacteria do have several potential applications in medicine and in other various sectors of biotechnology including agriculture. bacterial endophytes need to be explored for their potential applications in agricultural biotechnology. one of the potential applications of bacterial endophytes in agricultural is to enhance the growth of the agricultural crops. hence, this study was undertaken to explore the plant growth promoting potential application of bacterial endophytes. | 2014 | 25097431 |
| phthalide and isocoumarin derivatives produced by an acremonium sp. isolated from a mangrove rhizophora apiculata. | nine new fungal metabolites, one phthalide derivative, acremonide (1), and eight isocoumarin derivatives, acremonones a-h (2-9), were isolated from the mangrove-derived fungus acremonium sp. psu-ma70 together with 10 known compounds. their structures were determined by nmr analysis. the known 8-deoxytrichothecin and trichodermol exhibited moderate antifungal activity against candida albicans and cryptococcus neoformanns, respectively. | 2012 | 22524636 |
| autocatalytic growth of biofunctionalized antibacterial silver nanoparticles. | development of eco-friendly processes for nanosynthesis is gaining importance owing to the widespread application of nanoparticles (nps). in the present study, we have explained the mechanism and kinetics of bioreduction in the biosynthesis of silver nanoparticles (agnps) using aqueous leaf extract of rhizophora apiculata. spectrophotometric methods were employed to quantify the bioactive molecules present before and after the reduction process. the results showed that the polyphenols were the m ... | 2014 | 24117922 |
| indole-diterpenoids with anti-h1n1 activity from the aciduric fungus penicillium camemberti oucmdz-1492. | an aciduric fungal strain, penicillium camemberti oucmdz-1492, was isolated from an acidic marine niche, mangrove soil and mud, around the roots of rhizophora apiculata. six new indole-diterpenoids (1-6), along with five known analogues, emindole sb (7), 21-isopentenylpaxilline (8), paspaline (9), paxilline (10), and dehydroxypaxilline (11), were isolated from the fermentation broth of p. camemberti oucmdz-1492 grown at ph 5.0. on the basis of spectroscopic analyses, cd spectra, quantum ecd calc ... | 2013 | 23886345 |
| biobased silver nanocolloid coating on silk fibers for prevention of post-surgical wound infections. | bombyx mori silk fibers are an important biomaterial and are used in surgical sutures due to their remarkable biocompatibility. the major drawback to the application of biomaterials is the risk of bacterial invasion, leading to clinical complications. we have developed an easy and cost-effective method for fabrication of antibacterial silk fibers loaded with silver nanoparticles (agnps) by an in situ and ex situ process using an aqueous extract of rhizophora apiculata leaf. scanning electron mic ... | 2015 | 26491317 |
| antipathogenic potential of rhizophora spp. against the quorum sensing mediated virulence factors production in drug resistant pseudomonas aeruginosa. | quorum sensing (qs) is a process of cell-cell communication mechanism occurs between the bacterial cells through the secretary signal molecules. this qs mechanism has been shown to control over the expression of various genes responsible for the production of virulence factors in several bacterial pathogens. hence, the present study was intended to evaluate the antipathogenic potential of mangrove trees of the genus rhizophora against the qs dependent virulence factors production in pseudomonas ... | 2013 | 23746758 |
| serine-rich protein is a novel positive regulator for silicon accumulation in mangrove. | silicon (si) plays an important role in reducing plant susceptibility against a variety of different biotic and abiotic stresses; and also has an important regulatory role in soil to avoid heavy metal toxicity and providing suitable growing conditions for plants. a full-length cdnas of 696bp of serine-rich protein was cloned from mangrove plant (rhizophora apiculata) by amplification of cdna ends from an expressed sequence tag homologous to groundnut (arachis hypogaea), submitted to ncbi (kf2113 ... | 2015 | 25479011 |
| preliminary assessment of post-haiyan mangrove damage and short-term recovery in eastern samar, central philippines. | strong winds and storm surges from typhoon haiyan caused damage of us$12-15billion and >10,000 human casualties in central philippines in november 2013. to validate a proposed government us$22million mangrove replanting program, mangrove damage and short-term recovery were surveyed in seven natural and planted mangrove sites in eastern samar province at 2.5month and 4.5month post-haiyan. the preliminary assessment showed that natural mangroves (except for those directly hit by the storm) were re ... | 2016 | 27245554 |