scholarly journals Evaluation of Potential Thrombin Inhibitors from the White Mangrove (Laguncularia racemosa (L.) C.F. Gaertn.)

Marine Drugs ◽  
2015 ◽  
Vol 13 (7) ◽  
pp. 4505-4519 ◽  
Author(s):  
Caroline Rodrigues ◽  
Henrique Gaeta ◽  
Mariana Belchor ◽  
Marcelo Ferreira ◽  
Marcus Pinho ◽  
...  
Keyword(s):  
Thrombin Inhibitors ◽  
Laguncularia Racemosa ◽  
White Mangrove

scholarly journals Mudas de Mangue Branco Irrigadas com Água de Rejeito de Salina Solar em Substrato Areia de Restinga para Replantio de Manguezais Degradados

2020 ◽  
Vol 24 (3) ◽  
pp. 298-304
Author(s):  
Sílvio Roberto Fernandes Soares ◽  
Marcelo Tavares Gurgel ◽  
Neyton de Oliveira Miranda ◽  
Kaline Dantas Travassos ◽  
Alexandre Santos Pimenta
Keyword(s):  
Dry Mass ◽  
Laguncularia Racemosa ◽  
Coconut Fiber ◽  
Applied Water ◽  
Saline Environment ◽  
Quality Water ◽  
Mangrove Seedlings ◽  
White Mangrove ◽  
Reducing Costs

A necessidade de repovoar áreas de mangue degradadas pela produção de sal marinho levantou a questão da viabilidade da produção de mudas de mangue branco (Laguncularia racemosa (L.) C. Gaertn) com água e substrato obtidos próximos aos manguezais. Para tanto, foram testados o substrato Areia de Restinga e suas misturas com proporções de 25 e 50% de fibra de coco, bem como irrigação com água doce ou água contendo 5% e 10% de água de rejeito de salina com alta concentração de sal (água-mãe). O delineamento experimental foi o inteiramente casualizado em esquema fatorial, os dados foram analisados por meio da análise de variância e as médias foram comparadas pelo teste de Tukey. As avaliações foram realizadas em cinco períodos de desenvolvimento de plântulas e incluíram massa seca total, altura de planta, diâmetro de caule, massa seca da parte aérea, massa seca da raiz e índice de qualidade de Dickson. O substrato de areia de restinga e a irrigação com água doce proporcionaram as melhores dimensões e qualidade das mudas de mangue branco, mas mudas de tamanho e qualidade muito próximos foram produzidas quando a água aplicada continha 5% da água salgada. Os resultados obtidos serão aplicados para a produção de mudas de mangue branco, economizando água de boa qualidade e reduzindo custos com substrato comercial.   Palavras-chave: Degradação Ambiental. Viveiro Florestal. Ambiente Salino.   Abstract The need to repopulate mangrove areas degraded by sea salt production has raised the question of the viability of producing white mangrove (Laguncularia racemosa (L.) C. Gaertn) seedlings with water and substrate obtained near the mangroves. Therefore, the substrate Restinga Sand and its mixtures with proportions of 25 and 50% of coconut fiber were tested, as well as irrigation with freshwater or water containing 5% and 10% saltworks brine with high salt concentration (bittern). The experimental design was completely randomized in a factorial scheme. Data analysis consisted of variance analysis and Tukey Test for comparison of means. Evaluations carried out in five periods of seedling development included total dry mass, plant height, stem diameter, shoot dry mass, root dry mass, and Dickson quality index. Restinga Sand substrate and irrigation with freshwater provided the best dimensions and quality of white mangrove seedlings, but seedlings of very close size and quality were produced when the applied water contained 5% of the saltworks bittern. The obtained results will be applied to produce white mangrove seedlings saving good quality water and reducing costs with commercial substrate.   Keywords: Environmental Degradation. Forest Nursery. Saline Environment.

scholarly journals A preliminary investigation of endophytic fungal diversity at Hope, East Coast Demerara, Guyana

2021 ◽  
Vol 17 (2) ◽  
pp. 044-048
Author(s):  
Kimberly Craig ◽  
Abdullah Ansari
Keyword(s):  
Fungal Diversity ◽  
East Coast ◽  
Preliminary Investigation ◽  
Fungal Endophytes ◽  
Avicennia Germinans ◽  
Laguncularia Racemosa ◽  
Mangrove Species ◽  
Red Mangrove ◽  
Fungal Isolates ◽  
White Mangrove

Foliar endophytic fungi spend a part of their life cycle on the leaves of plants. They may demonstrate no apparent symptoms but may also cause disease at a later time in the plant’s life. Studies investigating foliar fungal endophytes of mangroves are limited. Therefore, the purpose of this study was to investigate the foliar fungal endophytes present on the leaves of three mangrove species: namely Red mangrove (Rhizophora mangle), Black mangrove (Avicennia germinans) and White mangrove (Laguncularia racemosa). The study site was an area located at Hope, East Coast Demerara, and South America, Guyana. Out of sixty (60) leaf samples that were prepared, fourteen (14) fungal isolates were identified. Most of the fungi isolated in the study were found to be Hyphomycetes (Aspergillus, Fusarium, Penicillium, Alternaria, Cladosporium and Curvularia) while the others were Zygomorphic (Mucor and Rhizopus). The ANOVA calculations for the isolates from the three mangrove species were found to not be statistically significant. R mangle was the preferred host out of the three (3) species. The findings of this study confirm that mangroves have rich endophytic diversity and demonstrate rich research and biochemical potential.

scholarly journals Prospección alimentaria del mono araña (Ateles geoffroyi) en petenes del humedal costero de Campeche, México/ Alimentary prospection of the spider monkey (Ateles geoffroyi) in petenes of costal wetland of Campeche, Mexico

2016 ◽  
Vol 32 (3) ◽  
Author(s):  
Yahir Burgos-Solís ◽  
Salvador Montiel
Keyword(s):  
Plant Species ◽  
First Record ◽  
Spider Monkey ◽  
Ateles Geoffroyi ◽  
Laguncularia Racemosa ◽  
Spider Monkeys ◽  
Forest Fragments ◽  
Manilkara Zapota ◽  
White Mangrove ◽  
Study Sites

For an inter-seasonal 4-month period, we recorded the parts of plant species consumed by a troop of 16 spider monkeys (Ateles geoffroyi) in three forest fragments in the western wetland of the Yucatan Peninsula. In these forest fragments, spider monkeys ate vegetal parts of five plant species: leaves and fruits of fig (Ficus maxima) and zapote (Manilkara zapota), leaves and flowers of white mangrove (Laguncularia racemosa), leaves of huano palm (Sabal yapa), and fruits of chechem (Metopium brownei). With exception of the latter, plant species consumed by spider monkeys in the forest fragments studied, constitute the most important forest resources in the regional wetland. Consumption of vegetal parts from white mangrove in our study sites represents the first record of this plant species in the diet of spider monkey within the Neotropics.

Assessing fine beam RADARSAT-1 backscatter from a white mangrove (Laguncularia racemosa (Gaertner)) canopy

2006 ◽  
Vol 14 (5) ◽  
pp. 401-408 ◽  
Author(s):  
John M. Kovacs ◽  
Casey V. Vandenberg ◽  
Francisco Flores-Verdugo
Keyword(s):  
Laguncularia Racemosa ◽  
White Mangrove

A new species ofBrachendus(Acari: Eriophyidae) associated with the white mangrove,Laguncularia racemosa(L.) Gaerten (Combretaceae), in Brazil

2007 ◽  
Vol 33 (3) ◽  
pp. 195-198
Author(s):  
Carlos H. W. Flechtmann ◽  
Isabela V. dos Santos-Mendonca ◽  
Jarcilene S. Almeida-Cortez
Keyword(s):  
New Species ◽  
Laguncularia Racemosa ◽  
White Mangrove ◽  
A New Species

Development of microsatellite markers for the white mangrove (Laguncularia racemosa C.F. Gaertn., Combretaceae)

2007 ◽  
Vol 9 (4) ◽  
pp. 1037-1038 ◽  
Author(s):  
Alejandro Nettel ◽  
Richard S. Dodd ◽  
Jorge A. Cid-Becerra ◽  
Jorge de la Rosa-Velez
Keyword(s):  
Microsatellite Markers ◽  
Laguncularia Racemosa ◽  
White Mangrove

The uncalibrated prothrombinase-induced clotting time test

2010 ◽  
Vol 30 (04) ◽  
pp. 212-216 ◽  
Author(s):  
R. Jovic ◽  
M. Hollenstein ◽  
P. Degiacomi ◽  
M. Gautschi ◽  
A. Ferrández ◽  
...  
Keyword(s):  
Factor Xa ◽  
Heparin Therapy ◽  
Thrombin Inhibitors ◽  
Coagulation Cascade ◽  
Diagnostic Tools ◽  
Direct Thrombin Inhibitors ◽  
Functional Assay ◽  
Clotting Time ◽  
Coagulation Time ◽  
Time Test

SummaryThe activated partial thromboplastin time test (aPTT) represents one of the most commonly used diagnostic tools in order to monitor patients undergoing heparin therapy. Expression of aPTT coagulation time in seconds represents common practice in order to evaluate the integrity of the coagulation cascade. The prolongation of the aPTT thus can indicate whether or not the heparin level is likely to be within therapeutic range. Unfortunately aPTT results are highly variable depending on patient properties, manufacturer, different reagents and instruments among others but most importantly aPTT’s dose response curve to heparin often lacks linearity. Furthermore, aPTT assays are insensitive to drugs such as, for example, low molecular weight heparin (LMWH) and direct factor Xa (FXa) inhibitors among others. On the other hand, the protrombinase-induced clotting time assay (PiCT®) has been show to be a reliable functional assay sensitive to all heparinoids as well as direct thrombin inhibitors (DTIs). So far, the commercially available PiCT assay (Pefakit®-PiCT®, DSM Nutritional Products Ltd. Branch Pentapharm, Basel, Switzerland) is designed to express results in terms of units with the help of specific calibrators, while aPTT results are most commonly expressed as coagulation time in seconds. In this report, we describe the results of a pilot study indicating that the Pefakit PiCT UC assay is superior to the aPTT for the efficient monitoring of patients undergoing UFH therapy; it is also suitable to determine and quantitate the effect of LMWH therapy. This indicates a distinct benefit when using this new approach over the use of aPPT for heparin monitoring.

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