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Excoecaria agallocha

About: Excoecaria agallocha is a research topic. Over the lifetime, 362 publications have been published within this topic receiving 5042 citations. The topic is also known as: Gewa.


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Journal ArticleDOI
30 Apr 2019
TL;DR: The result showed that seedlings height growth of Excoecaria agallocha was enhanced significantly with the application of NPK fertilizers but it was shown negatively significant effect on heightgrowth of Xylocarpus mekongensis after second time fertilizer application.
Abstract: An experiment was conducted to assess the effect of NPK fertilizers on seedling growth and survival of five important mangrove species of Bangladesh for nine months. Seedlings were raised in the nursery using plastic pots. NPK fertilizers with three treatments (control, 4 gm and 8 gm doses) were used two times when seedlings age was 3 and 6 months. The result showed that seedlings height growth of Excoecaria agallocha was enhanced significantly with the application of NPK fertilizers but it was shown negatively significant effect on height growth of Xylocarpus mekongensis after second time fertilizer application. Moreover, NPK application enhanced mortality of Avicennia officinalis and Ceriops decandra seedlings in both times of fertilizer application. But no effect of NPK fertilizers on seedlings growth and survival of Heritiera fomes were observed.

4 citations

Journal ArticleDOI
29 Jul 2016
TL;DR: In this article, the species diversity and the degree of impact of natural and anthropogenic activities on mangroves in nine coastal barangays of Mulanay, Quezon, Philippines were assessed.
Abstract: Mangrove Species Diversity and On-site Impact Assessment of Mangal Coastal Areas Mangrove forests, one of the most biologically important ecosystems in the coastal areas, are common and wide-spread, yet highly threatened. The species diversity and the degree of impact of natural and anthropogenic activities on mangroves in nine coastal barangays of Mulanay, Quezon, Philippines were assessed. Results revealed that all nine barangays had low species diversity index. Taxonomic identification revealed eleven mangrove species - Avicennia marina, Avicennia rumphiana, Bruguiera gymnorrhiza, Ceriops decandra, Ceriops tagal, Excoecaria agallocha, Rhizophora apiculata, Rhizophora mucronata, Sonneratia alba, Xylocarpus granatum, and Xylocarpus moluccensis belonging to five families. Impact analysis revealed that Patabog registered moderate impact, San Isidro and Canuyep with high impact, and Sta. Rosa, Sto. Nino, Buntayog, Amuguis and Ibabang Yuni were greatly affected by combined natural disturbances and anthropogenic activities. Based on our knowledge, this is the first documented impact assessment study of the coastal communities of Mulanay and a baseline study on the existence of at least 11 mangrove species present in the area..

4 citations

Journal Article
TL;DR: In this article, nine compounds were isolated from the EtOAc extract of the leaves of Excoecaria agallocha L. by gel and silica gel column chromatography and they were identified as kayadiol(1),8(14),15-isopimaradiene-7α,18-diol(2),5,11-epoxy-9-hydroxy-7-megastigmen-3-one(3),annuionone E(4),28,30-dihydroxy-lup-20
Abstract: Nine compounds were isolated from the EtOAc extract of the leaves of Excoecaria agallocha L.by gel and silica gel column chromatography.On the basis of spectral data,they were identified as kayadiol(1),8(14),15-isopimaradiene-7α,18-diol(2),5,11-epoxy-9-hydroxy-7-megastigmen-3-one(3),annuionone E(4),28,30-dihydroxy-lup-20(29)-ene-3-one(5),messagenic acid G(6),3β,24dihydroxy-12-oleanen-28-oic acid(7),syringaresinol(8),and ethyl gallate(9).All the compounds were isolated from the plant for the first time.

4 citations

Journal ArticleDOI
28 Sep 2009
TL;DR: In this paper, the salt content in mature leaves of nine mangrove species in Sri Lanka was quantified by acid digestion and quantification by flame photometry, and the concentration of Na+ in leaves was considered as a measure of the salt concentration.
Abstract: Due to the predicted threats of global warming and sea level rise, the salt tolerance and salt accumulative abilities of plants have become popular contentious topics. Mangroves are one of the major groups of salt tolerant plants and several mechanisms are known as instrumental in their salt tolerance. Salt excretion through leaf drop is given as one, but its validity is questioned by some recent works compelling the necessity for further studies. Knowledge of the salt contents in different mangrove plants is a pre requisite for such studies. Hence, this study aimed to quantify and compare the salt content in mature leaves of nine mangrove species in Sri Lanka., i.e. Aegiceras corniculatum, Avicennia marina, Avicennia officinalis, Bruguiera gymnorrhiza, Bruguiera sexangula, Ceriops tagal, Excoecaria agallocha, Lumnitzera racemosa, Rhizophora apiculata and Rhizophora mucronata which are growing in the same mangrove system; the Rekawa lagoon in Sri Lanka. Two species of non mangrove plants, Gliricidia sepium and Artocarpus heterophyllus, which were growing in inland areas were also selected for comparison. The concentration of Na+ in leaves was considered as a measure of the salt concentration. The Na+ in leaves was extracted by acid digestion and quantified by flame photometry. The salt content of mangroves was measured under two contrasting hydrological situations: at the highest and lowest water levels of the lagoon. Rekawa lagoon can be considered as a ‘barrier built estuary’, the highest water level occurs when the lagoon mouth is blocked due to the formation of the sand bar and the water level is increased by fresh water inflow, inundating the total mangrove area and decreasing the soil/water salinity. The water level of the lagoon becomes lowest when the lagoon mouth is opened (naturally or by dredging) and lagoon water is flushed out to the sea. Then the salinity of lagoon water becomes high due to sea water influx. The results showed that the concentration of Na+ in mangrove leaves was 3 to 12 times higher compared to that in leaves of selected non mangroves. Statistical analysis revealed that the variations in Na+ content in leaves of different mangrove species were same under both hydrological regimes. E. agallocha and R. mucronata showed the highest salt content whilst A. corniculatum B. sexangula showed the lowest salt content. The three species, A. marina, A. officinalis and L. racemosa, showed the second highest salt content and the remaining two species C. tagal and B. gymnorhiza, showed the second lowest salt content. Apparently the interspecific variation in the concentration of Na+ in mangrove leaves follow the interspecific variations in the salinity tolerance reported for the same species.

4 citations

Journal ArticleDOI
TL;DR: In this paper, the piscicidal constituent of the twigs and bark of E. agallocha local to Okinawa has been portrayed as daphnanediterpene ester excoecariatoxin.
Abstract: The boundless tropical variety Excoecaria is known for the generation of dangerous metabolites [1]. It is appropriated on sea-shores and edge mangroves once in a while developed for wind and ocean softens up tropical Africa and east Asia. The leaves and smooth liquid acquired from harmed branches have been utilized as a fish harm in New Caledonia and in Okinawa, the resinous wood including latex, the supposed \"Okinawa-Jinko\", has likewise been utilized as a substitute for the incense of agalwood [2,3]. The bark and wood of this tree have been utilized as a part of conventional solutions for tooting in Thailand [4,5]. Anjaneyulu and Rao [6,7] revealed countless diterpenoids from n-hexane remove and from ethyl acetic acid derivation solubles of CH3OH:CH2Cl2 (1:1) concentrate of the foundations of Indian mangrove plant Excoecaria agallocha L. (family: Euphorbiaceae). The piscicidal constituent of the twigs and bark of E. agallocha local to Okinawa has been portrayed as daphnanediterpene ester excoecariatoxin. This diterpene ester and some related mixtures have likewise been gotten from the latex of E. agallocha in Thailand [8-10]. Naturally, in vitro assurance of toxic effects of unknown compounds has been performed by counting viable cells after staining with a vital dye. Different methods used are measurement of radioisotope adding as a measure of DNA synthesis, counting Anticancer Activity of Flavone of Excoecaria agallocha in Cytotoxicity Studies Using Hela Cells

4 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20218
202014
201913
201822
201718
201615