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Excoecaria agallocha

About: Excoecaria agallocha is a(n) research topic. Over the lifetime, 362 publication(s) have been published within this topic receiving 5042 citation(s). The topic is also known as: Gewa.


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Journal ArticleDOI
TL;DR: The fatty acid composition and the antibacterial and antifungal activities of Fatty Acid Methyl Esters (FAME) of the blind-your-eye mangrove plant found along the coastal areas of south India are determined for the first time.
Abstract: Fatty acids are widely occurring in natural fats and dietary oils and they are known to have antibacterial and antifungal properties. However, little is known on the antibacterial and antifungal properties of the blind-your-eye mangrove (Excoecaria agallocha) and this study for the first time determines the fatty acid composition and the antibacterial and antifungal activities of Fatty Acid Methyl Esters (FAME) of the blind-your-eye mangrove plant found along the coastal areas of south India.

291 citations

Journal ArticleDOI
TL;DR: Seven dominant mangrove species of an estuarineMangrove forest in south India were studied for the presence of foliar endophytes and the endophyte assemblage of each mangroves species was dominated by different endophyta species.
Abstract: Seven dominant mangrove species of an estuarine mangrove forest in south India were studied for the presence of foliar endophytes. Mitosporic fungi, ascomycetes and sterile mycelia were isolated from the leaves of the mangrove hosts studied. Although many endophytes were common to more than one host, the endophyte assemblage of each mangrove species was dominated by different endophyte species.

136 citations

Journal ArticleDOI
TL;DR: Three metabolites named phomopsin A, B and C, together with two known compounds cytosporone B (4) and C (5), were isolated from the mangrove endophytic fungus, Phomopsis sp.
Abstract: Three metabolites named phomopsin A (1), B (2) and C (3), together with two known compounds cytosporone B (4) and C (5), were isolated from the mangrove endophytic fungus, Phomopsis sp. ZSU-H76 obtained from the South China Sea. Their structures were elucidated by spectroscopic methods, mainly by 1D and 2D NMR spectroscopic techniques. The medium-sized cyclic phenol ether based on 1 or 2 is rare in natural products. In bioassays, compounds 1, 2, and 3 had no significant antibiotic activities, but compounds 4 and 5 inhibited two fungi Candida albicans and Fusarium oxysporum with an MIC ranging from 32 to 64 microg/ml.

122 citations

Journal ArticleDOI
Abstract: The Sundarbans, the largest contiguous mangrove forest in the world, covers 6,017 km2 of the coastal zone of Bangladesh. Heritiera fomes Buch.-Ham., Excoecaria agallocha L. and Ceriops decandra (Griff.) Ding Hou jointly cover 95% of the forest area. In this study, the results of four forest inventories have been analyzed to understand observed vegetation dynamics of the Sundarbans from 1926 to 1997. The diversity of forest types has been gradually reduced over time, but H. fomes and E. agallocha have maintained their dominance over large portions of the forest. H. fomes is spread over 67% of the vegetated area of the forest, concentrated mostly in the northeastern area, and constitutes 75% of the density of trees with >15 cm dbh. The distribution and stem density of H. fomes show negative relationships with that of E. agallocha and C. decandra. In terms of coverage, E. agallocha is the most common species, spread over 74% of the vegetated area of the forest, and constitutes 39% of the density of trees with >2.5 cm dbh. On a longer timeframe (1926–1997), the dominance (coverage and density of larger diameter trees) of H. fomes as well as that of E. agallocha is declining. Even on parameters such as density of trees with >15 cm dbh, the dominance of E. agallocha is declining at a much greater rate than H. fomes. This observation contradicts the successional schemes proposed by different authors. This might indicate that theorizing successional schemes based on short-term observations on vegetation dynamics is not sufficient. The effect of human interference, changes in hydroedaphic condition and species interaction should be taken into consideration during explaining observed vegetation dynamics. Moreover, the need to understand vegetation trajectories at the micro-scale should be emphasized.

113 citations

Journal ArticleDOI
TL;DR: Low molecular weight carbohydrates (LMWC) occurring in both young and old leaves of 22 mangrove species from Northern Queensland (Australia) were identified using gas liquid and gas capillary chromatography.
Abstract: Summary Low molecular weight carbohydrates (LMWC) occurring in both young and old leaves of 22 mangrove species from Northern Queensland (Australia) were identified using gas liquid and gas capillary chromatography. The cyclitol, pinitol, was the most prevalent compound in all members of the Rhizophoraceae and in the mangrove fern Acrostichum speciosum. In addition, Aegialitis annulata stored chiro-inositol. Another cyclitol, quebrachitol, occurred in Excoecaria agallocha. Mannitol, a polyol, was dominating in Aegiceras corniculatum, Lumnitzera littorea, Lumnitzera racemosa, Sonneratia alba and Scyphiphora hydrophylacea. The sugars sucrose, glucose, and fructose were not generally stored in high concentrations (except Xylocarpus granatum, 300 mol · m−3 plant water). Those species which contained no cyclitols or mannitol were low in their LMWC content. LMWC concentrations were higher in young leaves than in old ones in nearly all species under investigation. Polyols and cyclitols may have taxonomically associated distributions and may play a role in osmotic adjustment.

112 citations

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