Pollen limitation affects reproductive outcome in the bird-pollinated mangrove Bruguiera gymnorrhiza (Lam.) in a highly urbanized environment
24
Citation
42
Reference
10
Related Paper
Citation Trend
Keywords:
Bruguiera
Mangrove ecosystem
The research aimed at monitoring the condition of mangrove communities in Batanta Island and Salawati Island, Raja Ampat District, West Papua Province. It used method developed by the Indonesian Institute of Sciences Research Center for Oceanography (P2O LIPI). Method in determining the percentage for the coverage of mangrove communities used a hemispherical photography and the data analysis used ImageJ software in excel tabulation. The result showed that mangrove canopy coverage has decreased from 85.73% in 2017 to 84.14% in 2018. Since the observations in 2015, the percentage of mangroves had no significant change. In average the percentage increased as much as 3.45% from 75.09% in 2015 to 78.54% in 2016. Moreover, it increased again by 7.20% in 2017 (85.73%). It indicates that the average change percentage of mangroves is not significant, and it can be concluded that the mangrove ecosystem in this area does not degrade significantly and has a good growth rate. The average density value was 1254.3 trees per hectare in the period of 2016-2018 or it increased to about 16.5% since 2015. The number of species found at the observation site were 5 species (Rhizophora mucronata, Rhizophora apiculata, Bruguiera gymnorrhiza, Sonneratia alba, and Xylocarpus granatum) scattered in eight observation stations. From these results it can be concluded that mangrove condition at the research location is stable and gets support for the survival of biota associated therein.
Raja
Bruguiera
Rhizophora mucronata
Mangrove ecosystem
Cite
Citations (1)
Taxonomic significance of the leaf epidermis of five species of Rhizophoraceae has been brought out in the present study. The mangrove members ( Rhizophora apicuiata, R. mucronata, Ceriops decandra, Bruguiera cyclindrica ) and non-mangrove member ( Carallia integerrima ) are found to exhibit a number of similar characters. However, the non-mangrove species differs from the mangrove members in the following features: (1) Stomata of small size, (2) Mesoperigenous origin of aniso-and tetracytic stomata, (3) Absence of peri stomatal rim, (4) Absence of inner cuticular ledges, (5) Guard cells seated over the under-arched subsidiary cells, (6) Absence of hypodermis and (7) presence of idioblasts. Evidences from stipular morphology, embryology, wood anatomy, chemical charaters, seed coat anatomy and leaf epidermis suggest the placement of mangroves under Rhizophoraceae and the non-mangroves under Anisophylleaceae and Legnotideaceae.
Rhizophoraceae
Bruguiera
Rhizophora
Epidermis (zoology)
Rhizophora mucronata
Cite
Citations (1)
Bruguiera
Rhizophoraceae
Mangrove ecosystem
Cite
Citations (0)
Bruguiera
Rhizophoraceae
Mangrove ecosystem
Cite
Citations (0)
Research on the level of damage to mangrove ecosystems has been carried out in Estuarine Area Sei Jang. The purpose of this study was to determine the types of mangroves, the density and percentage of mangrove canopy cover, and the level of damage to mangrove ecosystems in the Sei Jang Estuary Area of Tanjung Pinang City. This research was conducted in March 2019. Determination of the research location using a purposive sampling method of 3 stations and using a 10 x 10 m transect for the density and percentage of mangrove canopy cover. The results found four types of mangroves namely Bruguiera gymnorhiza, Rhizophora apiculata, Rhizophora mucronata, and Ceriops tagal with density values (1.033-1.367 individu/ha) and the percentage of mangrove canopy cover with values (61.55-78.41%). For the level of damage at Station I and III are categorized (good) and Station II is categorized (Damaged).
Rhizophora mucronata
Bruguiera
Rhizophoraceae
Mangrove ecosystem
Rhizophora
Cite
Citations (4)
The Segara Ankan Lagoon (SAL) has a potentially reduced mangrove ecosystem. In this year, the mangrove area in SAL is predicted only remaining 1788 ha. The degradation of The Segara Ankan Lagoon (SAL) has a potentially reduced mangrove ecosystem. In this year, the mangrove area in SAL is predicted only remaining 1788 ha. The degradation of mangrove ecosystem often occurres in SAL, especially in Eastern of Segara Anakan Lagoon Cilacap (E-SAL). To reduce mangrove degradation need activities to review their status and recovery activities. This research aims to analysis the activities to support the effort of mangrove rehabilitation. The results of this researchd showed that (1) The potential of mangrove ecosystem in E-SAL was seedling between 15.000 – 34.999 trees ha-1, sapling between 5.199-9.065 trees ha-1 and trees between 533 – 1366 trees ha-1, (2) The status of mangrove ecosystem in E-SAL was damaged – very damaged. (3) the model spesices selection of rehabilitation pattern to reduce mangrove degradation were Rhizophora apiculata, Rhizophora mucronata, Aegiceras corniculatum, Sonneratia alba, Avicennia marina, and Bruguiera gymnorrhiza
Bruguiera
Rhizophora mucronata
Avicennia marina
Mangrove ecosystem
Rhizophora
Avicennia
Cite
Citations (3)
Objective: To evaluate the antimicrobial potential of partially purified leaf, bark and root extracts obtained from two mangrove species Rhizophora apiculata and Bruguiera gymnorrhiza from South Andaman against clinical bacterial and fungal pathogens. Methods: Roots, bark and leaves were dried in the shade and subjected to organic solvent extraction. Antibacterial and antifungal activities were performed by agar well diffusion technique. Column purified extracts were analyzed by high performance liquid chromatography for compound identification. Results: Results of the partially purified extracts were analyzed by column chromatography. Fractions collected by high performance liquid chromatography exhibited a wide range of antimicrobial activities against several bacterial and fungal pathogens. Fungal pathogen Aspergillus niger (25 mm) was found to be more sensitive against the mangrove extracts as compared with Klebsiella pneumoniae (23 mm), Escherichia coli, Shigella flexneri, Salmonella typhi (22 mm). Active fractions were identified as tannin compounds based on the peaks obtained by high performance liquid chromatography. Conclusions: Present findings reveal that mangrove bark, roots, and leaves contain valuable metabolites, which have significant importance in the pharmacological industries. Hence, this study suggests that these two mangrove plants Rhizophora apiculata and Bruguiera gymnorrhiza are potential candidates for discovering antimicrobial compounds against clinical pathogens.
Bruguiera
Rhizophoraceae
Rhizophora
Rhizophora mucronata
Mangrove ecosystem
Cite
Citations (22)
Research on mangrove gap feature is the base of research on the restoration and reconstruction of degenerated mangrove ecosystem,and the base for improvement of secondary mangrove and scientific management of mangrove ecosystem.The survey of mangrove inside zone gap feature in Gaoqiao,Leizhou Peninsula was conducted and analysis was done on the size structure,the manners of gap formation and the gap maker feature and so on.This survey discovers the main area of mangrove inside zone gap in Gaoqiao is small,distribute in actual gap size of 1~10 m2 and extended gap size of 1~50 m2;the main gap maker is standing death,secondly is braneh breakage.The number of gap makers is 1~6.The average of gap has 2.3 gap makers;and gap maker species are Rhizophora stylosa,Aegiceras Corniculatum、Bruguiera gymnorrhiza and Kandelia obovata Sheue,which account for is 5.4%,8.9%,60.7%,25.0% respectively;The decay is at a higher level.
Bruguiera
Mangrove ecosystem
Feature (linguistics)
Kandelia candel
Gap analysis (conservation)
Cite
Citations (0)
Rhizophoraceae
Bruguiera
Cite
Citations (16)
The present study was aimed to analyze the active compounds and quantification of secondary metabolites such as total phenol content, flavonoid content and H 2 O 2 content in the leaves of Bruguiera gymnorrhiza and carry out the antimicrobial activity of the large leafed mangrove.The ethanolic leaf extract was analyzed using GC-MS method. Quantification of secondary metabolites like total phenol, flavonoid, and H 2 O 2 content was carried out on both hexane and ethanol extracts. The antimicrobial activity was carried out on the ethanolic leaf extract against standard Ciprofloxacin. The ethanolic leaf extract of the sample showed more compromising results than that of the hexane extract. The flavonoid content and the phenol content is said to be more in the ethanol extract than that of the hexane extract. The H 2 O 2 content also came out to be more in the ethanol extract. The Gas Chromatography Mass Spectrometer of the ethanolic extract of the leaf sample revealed about 25 compounds with Formamide, n,ndimethyl showing the highest peak area. The antimicrobial activity of the leaf sample of the ethanolic extract showed more activity. The present study revealed that Bruguiera gymnorrhiza can be used as a potential drug and furthers studies are required on it.
Bruguiera
Mangrove ecosystem
Cite
Citations (0)