scholarly journals A Brief Observation of Endangered Coquerel’s Sifaka (Propithecus coquereli) Feeding on Red Mangrove (Rhizophora mucronata) Vegetation in a Mangrove Environment, Northwest Madagascar

2020 ◽  
Vol 41 (4) ◽  
pp. 562-565
Author(s):  
C. Chell ◽  
M. E. Corral ◽  
I. Grant ◽  
C. J. Laskai ◽  
H. Gough ◽  
...  
Keyword(s):  
Rhizophora Mucronata ◽  
Red Mangrove ◽  
Mangrove Environment

scholarly journals Larvicidal Enzyme Inhibition and Repellent Activity of Red Mangrove Rhizophora mucronata (Lam.) Leaf Extracts and Their Biomolecules against Three Medically Challenging Arthropod Vectors

Molecules ◽  
2020 ◽  
Vol 25 (17) ◽  
pp. 3844
Author(s):  
Sengodan Karthi ◽  
Karthic Uthirarajan ◽  
Vinothkumar Manohar ◽  
Manigandan Venkatesan ◽  
Kamaraj Chinnaperumal ◽  
...  
Keyword(s):  
Larvicidal Activity ◽  
Mosquito Control ◽  
Chemical Characterization ◽  
Acetone Extract ◽  
Bioactive Molecules ◽  
Repellent Activity ◽  
Rhizophora Mucronata ◽  
Mosquito Vectors ◽  
Leaf Extracts ◽  
Red Mangrove

The larvicidal potential of crude leaf extracts of Rhizophora mucronata, the red mangrove, using diverse solvent extracts of the plant against the early fourth instar larvae of Anopheles stephensi, Culex quinquefasciatus and Aedes aegypti mosquito vectors was analyzed. The acetone extract of R. mucronata showed the greatest efficacy: for Cx. quinquefasciatus (LC50 = 0.13 mg/mL; LC90 = 2.84 mg/mL), An. stephensi (LC50 = 0.34 mg/mL; LC90 = 6.03 mg/mL), and Ae. aegypti (LC50 = 0.11 mg/mL; LC90 = 1.35 mg/mL). The acetone extract was further fractionated into four fractions and tested for its larvicidal activity. Fraction 3 showed stronger larvicidal activity against all the three mosquito larvae. Chemical characterization of the acetone extract displayed the existence of several identifiable compounds like phytol, 3,7,11,15-tetramethyl-2-hexadecen-1-ol, 1-hexyl-2-nitrocyclohexane, eicosanoic acid etc. Enzyme assay displayed that R. mucronata active F3-fractions exert divergent effects on all three mosquitos’ biochemical defensive mechanisms. The plant fractions displayed significant repellent activity against all the three mosquito vectors up to the maximum repellent time of 210 min. Thus, the bioactive molecules in the acetone extract of R. murconata leaves showed significant larvicidal and enzyme inhibitory activity and displayed novel eco-friendly tool for mosquito control.

FATE OF THE ZOE COLOCOTRONI OIL SPILL AND ITS EFFECTS ON INFAUNAL COMMUNITIES ASSOCIATED WITH MANGROVES

1981 ◽  
Vol 1981 (1) ◽  
pp. 353-360 ◽  
Author(s):  
Edward S. Gilfillan ◽  
David S. Page ◽  
Ray P. Gerber ◽  
Sherry Hansen ◽  
Judy Cooley ◽  
...  
Keyword(s):  
Oil Spill ◽  
Community Analysis ◽  
Reference Area ◽  
Infaunal Community ◽  
Red Mangrove ◽  
Large Numbers ◽  
Mangrove Environment ◽  
Impact Area ◽  
Spill Site ◽  
The Impact

ABSTRACT During 1978 and 1979, sediment samples were collected in the mangrove areas on the west side of Bahia Sucia, Puerto Rico, to examine the effects of oil discharged from the tanker Zoe Colocotroni (March 18, 1973) on the infaunal community. Samples for benthic community analysis and hydrocarbon analysis were taken in representative types of mangrove habitats and compared with habitats in a reference area some distance from the spill site. Infaunal organisms larger than 0.5 mm were included in this study. Correlation of biological and chemical data indicates that for the high salinity habitats there were more infaunal organisms larger than 0.5 millimeters in the oiled area than in the unoiled area. Analyses of the red mangrove fringe areas showed that the distribution of infaunal organisms was not related to the distribution of oil in an obvious way. Large numbers of organisms were found in some heavily oiled areas. Even the most diverse communities seen in the impact area were not as diverse as the community seen in the unoiled reference area. We conclude that only in the red mangrove environment is there remaining damage to infaunal communities from the Zoe Colocotroni oil spill.

Four species of Olethreutinae (Lepidoptera : Tortricidae) associated with viviparous seedlings of the mangrove Rhizophoraceae in the Ryukyu Islands, Japan

2003 ◽  
Vol 17 (1) ◽  
pp. 75 ◽  
Author(s):  
Furumi Komai ◽  
Yoshitsugu Nasu
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Host Preference ◽  
Ryukyu Islands ◽  
Kandelia Candel ◽  
Rhizophora Mucronata ◽  
The Ryukyu Islands ◽  
Two New Species ◽  
Mangrove Environment ◽  
Bruguiera Gymnorhiza

Four olethreutine species, including two new species described herein, are associated with the fruits and seedlings of Rhizophoraceae in the Ryukyu Islands: Cryptophlebia horii Kawabe feeds on Bruguiera gymnorhiza (L.) Lam.; C. amamiana, sp. nov. feeds on Kandelia candel (L.) Druce; C. palustris, sp. nov. feeds on Rhizophora mucronata Lam.; and Eucosma coniogramma Clarke (= Eucosma okubiensis Kawabe, syn. nov, herein newly established as a junior synonym) feeds on Bruguiera gymnorhiza. Adults, larvae, and genitalia are diagnosed and illustrated for each species, and geographic distribution and information on biology are provided. In addition, we discuss Cryptophlebia species associated with mangroves worldwide, host preference, and adaptations to the mangrove environment.

scholarly journals Reintroduction of red mangrove Rhizophora mucronata in Abu Dhabi Emirate, United Arab Emirates

2020 ◽  
Vol 7 (2) ◽  
pp. 210-217
Author(s):  
Omer Mohamed Yousif ◽  
Sumitro Sen
Keyword(s):  
Survival Rate ◽  
United Arab Emirates ◽  
Climatic Conditions ◽  
Present Condition ◽  
Abu Dhabi ◽  
Reproductive Phenology ◽  
Rhizophora Mucronata ◽  
Term Survival ◽  
Red Mangrove ◽  
Abu Dhabi Emirate

Reintroduction of once existing red mangrove, Rhizophora mucronata trials were carried out in Abu Dhabi, United Arab Emirates. Propagules were procured from Pakistan and cultured in a greenhouse before they were planted alongside existing Avicennia marina forest in two sites of Abu Dhabi emirate, Abu Al Abyad and Ras Ghanada Islands. This study documents the present condition of the plants after 11 years of plantation. Long term survival rate was as high as 81% in Abu Al Abyad while Ras Ghanada experienced a very low survival rate at 10%, primarily due to external factors. In contrast, Ras Ghanada plants showed higher growth with the mean height stands at 2.06 m (SD ± 0.31m), while in Abu Al Abyad it is 1.53 m (SD ± 0.36 m). In Abu Al Abyad, more than one third (36.4%) of surviving plants showed reproductive phenology, whereas in Ras Ghanada it was only 10.3%, despite of greater height classes. Many Rhizophora were also noticed with well-developed stilt roots. This study showed that Rhizophora mucronata can be planted in Abu Dhabi, despite the Emirate's harsh climatic conditions.

Occurrence and origin of carbohydrates in peat samples from a red mangrove environment as reflected by abundances of neutral monosaccharides

1990 ◽  
Vol 54 (9) ◽  
pp. 2463-2472 ◽  
Author(s):  
M.E.C. Moers ◽  
M. Baas ◽  
J.W. De Leeuw ◽  
J.J. Boon ◽  
P.A. Schenck
Keyword(s):  
Red Mangrove ◽  
Mangrove Environment

The response of the red mangrove Rhizophora mucronata Lam. to salinity and inundation in South Africa

2011 ◽  
Vol 95 (2) ◽  
pp. 71-76 ◽  
Author(s):  
Sabine C.L. Hoppe-Speer ◽  
Janine B. Adams ◽  
Anusha Rajkaran ◽  
Dylan Bailey
Keyword(s):  
South Africa ◽  
Rhizophora Mucronata ◽  
Red Mangrove

scholarly journals Characterisation of nitrogen-containing organic compounds by UHPLC-Qtof-MS and anti-amylase activity from the chloroform extract of the bark of Rhizophora mucronata

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
P. Resmi ◽  
G. Jitha ◽  
Vishnu Murali ◽  
Anu Gopinath
Keyword(s):  
Diabetes Mellitus ◽  
Amylase Activity ◽  
Chloroform Extract ◽  
Significant Activity ◽  
Rhizophora Mucronata ◽  
Inhibition Assay ◽  
Mangrove Plant ◽  
Starting Point ◽  
Treatment Of Diabetes ◽  
Nitrogen Containing Compounds

Abstract Background Medicinal importance of mangrove plant Rhizophora mucronata, a red mangrove species found in the Asian countries, has long been recognised in traditional systems of medicine. The identification of its phytoconstituents can be a starting point for the drug development. The aim of the work was to extend the current knowledge of phytoconstituents from R. mucronata and to explore its pharmacological importance in the treatment of diabetes mellitus. In the present study, we analysed the chloroform extract from the bark of the mangrove plant R. mucronata for nitrogen-containing constituents using UHPLC QTOF MS profiling, and α-amylase inhibition assay was carried out. Results Four nitrogen-containing compounds were identified from the chloroform extract of the bark of R. mucronata using UHPLC QTOF MS profiling. The compounds identified were N,N′-dicyclohexyl urea, a cryptolepine derivative (C17H15N3O), an aliphatic cyclic compound with hydroxyl and amino groups (C22H43NO), and C16H19NO2 (m/z 258.1495). The anti-amylase activity, an in vitro antidiabetic bioassay, of chloroform extract showed an IC50 value of 220.09 μg/ml. Conclusions This is the first report on the identification of nitrogen-containing compounds from the chloroform extract of the bark of the R. Mucronata. One of the compounds identified was a novel cryptolepine derivative (C16H13N3O), and it falls under the rare category indoloquinoline alkaloid. The chloroform extract also showed significant activity towards α-amylase inhibition assay. Thus, the study has gone some way towards our understanding of the efficacy of bark of the R. mucronata for the treatment of diabetes mellitus and is open for further research.

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