Open Access
Microbial enzyme activity in decomposing leaves of mangroves
Kandasamy Kathiresan,Kandasamy Saravanakumar,Raj Anburaj,Venugopal Gomathi,G. Abirami,Sunil Kumar Sahu,S. Anandhan +6 more
- 01 Jan 2011
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TL;DR: Fungal isolate species, especially Trichoderma species, were found more efficient in producing the extracellular enzymes than the Bacterial isolates, revealing the significance of fungi in detritus-based mangrove systems.
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Abstract: The present work analysed the enzyme activities of the predominant microbial species associated with decomposing mangrove leaves. The microbes were isolated from decomposing leaves of mangroves and the extracellular enzymes such as amylase, protease, cellulase, chitinase and lipase were determined. Senescent leaves of two mangrove species (Rhizophora mucronata and Avicennia marina) kept in nylon bags, were separately in two tanks immersed in tidal water for 40 days situated along the intertidal area of the Vellar estuary, south east coast of India. Decomposing leaves were collected every eight days from each tank for isolation and enumeration of different groups of microorganisms. Two genera of total heterotrophic bacteria (THB), four species of Lactobacillus, two species of Azotobacter, two species of Actinobacteria, three isolates of fungus, four species of yeasts, two species of Thraustrochytrids and four species of Trichoderma were identified and tested further for their enzyme activity. Fungal isolates, especially Trichoderma species, were found more efficient in producing the extracellular enzymes than the Bacterial isolates, revealing the significance of fungi in detritus-based mangrove systems.
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Citations
Survival and growth of fish (Lates calcarifer) under integrated mangrove-aquaculture and open-aquaculture systems
Shanmugaarasu Venkatachalam,Kathiresan Kandasamy,Ilanchelian Krishnamoorthy,Rajendran Narayanasamy +3 more
TL;DR: Integrating the mangroves with fish farming of the Asian seabass is beneficial for better fish survival and biomass production and the water quality seemed to be favourable for growth and survival of the fish.
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Biotechnological applications of mangrove plants and their isolated compounds in medicine-a mechanistic overview
TL;DR: The present review provides information on the biotechnological potentials of mangrove plants and their bioactive compounds as a new source of novel drugs, enzymes, nanoparticles and therapeutically important microbial pigments to form a base of support and hasten the urgent research on biomedical applications ofMangroves.
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Bioremoval of the synthetic dye malachite green by marine Trichoderma sp.
TL;DR: This work proved the potential of marine strain of Trichoderma Hypocrea lixii on dye degradation and toxicity effect of degraded and undegraded dye solutions was tested with Artemia salina.
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•Journal Article
Efficacy of Trichoderma asperellum against Ralstonia solanacearum under greenhouse conditions
TL;DR: Two isolates of Trichoderma (T4 and T8) exhibiting high antagonistic activity were evaluated under green house conditions in suppressing disease and promoting tomato plant growth and the disease incidence was significantly reduced by about 50% in tomato plants raised under greenHouse conditions.
Microbial mats: an ecological niche for fungi
TL;DR: The research suggests that fungi thrive in these hypersaline consortia and may participate in the carbon cycle through the degradation of complex carbohydrates in tropical hypersaline microbial mats.
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TL;DR: Mangroves are woody plants that grow at the interface between land and sea in tropical and sub-tropical latitudes where they exist in conditions of high salinity, extreme tides, strong winds, high temperatures and muddy, anaerobic soils, creating unique ecological environments that host rich assemblages of species.
Mangroves enhance the biomass of coral reef fish communities in the Caribbean.
Peter J. Mumby,Alasdair J. Edwards,J. Ernesto Arias-Gonzalez,Kenyon C. Lindeman,Paul G. Blackwell,Angela Gall,Malgosia I. Gorczynska,Alastair R. Harborne,Claire L. Pescod,Henk Renken,Colette C. C. Wabnitz,Ghislane Llewellyn +11 more
TL;DR: It is shown that mangroves are unexpectedly important, serving as an intermediate nursery habitat that may increase the survivorship of young fish in reef fish population dynamics.
Decomposition in salt marsh ecosystems: The phases and major factors affecting disappearance of above-ground organic matter
Ivan Valiela,John M. Teal,Sarah D. Allen,Richard Van Etten,Dale D. Goehringer,Suzanne Volkmann +5 more
TL;DR: Decay of litter of salt marsh grasses occurs in three phases; increases in internal nitrogen content of litter increase loss of weight during the leaching and decomposer phases, while the external supply of nitrogen increases decay rates only during the decomposers phase.
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