Abstract
BackgroundDue to increasing number of individuals within the world having health issues caused by varied cancers, drug-resistant microorganism, parasitic protozoans, and fungi could be a cause for alarm. Endophyte’s are a unique source of medicinal compounds which requires an intensive seek for newer and simpler agents to handle these sickness issues is currently advancing. This study explores the description of endophytic fungi of Ceriops decandra (Griff.) W. Theob., a mangrove plant growing in mangrove forest, Sundarban, Bangladesh.MethodsThe endophytic fungi of experimental plants were identified by DNA amplification and sequencing of the internal transcribed spacer (ITS) region Moreover, cytotoxicity, antioxidant and antimicrobial tests were assessed. In addition, the screening of extracts was performed by visual detection using UV light.ResultsThree fungi namely CEDBE-1, CEDLE-6 and CEDLE-10 (internal strain no) were isolated as endophytic fungi and identified as Fusarium oxysporum, Clonostachys spp. and Fusarium solani respectively on the basis of morphological characteristics and DNA sequencing. The isolates were cultured at 280 C±2 for 21 days in Potato Dextrose Agar (PDA) media. The extracts of fungal isolates were examined at 100 µg/disc concentration for the screening of antibacterial activity and exhibited no activity against tested human pathogenic bacteria. The strain CEDBE-1 showed highest antioxidant activity of IC50 value of 31.07 µg/mL comparing with the positive control ascorbic acid (0.74) and BHA (7.79) µg/mL. All isolates exhibited strong cytotoxic activity using brine shrimp lethality bioassay compared with the positive control tamoxifen. Preliminary chemical screening of the fungal extracts by thin layer chromatography technique revealed the presence of various compounds.ConclusionsThe findings indicate that endophytic fungal isolates explored from C. decandra has diversified biological activities which may be potential source of leads for new drug development.
Highlights
IntroductionMore than a number of its plant species have massive applications within the convention of folk medicine; numerous components of those plants are applied for the native folks as cure for numerous ailments [2,3,4]
Sundarban is a leading single source of mangrove forest in the world [1]
Isolation and morphological grouping of endophytic fungi from C. decandra In this investigation, a total 30 segments (14 leaves and 16 barks) of C. decandra were inoculated in the plate and a total 25 isolates were purified on the basis of morphological characteristics using standard protocol [15]
Summary
More than a number of its plant species have massive applications within the convention of folk medicine; numerous components of those plants are applied for the native folks as cure for numerous ailments [2,3,4]. As mangroves thrive in enormously traumatic and unfriendly environment of high salinity, high and low tides of water, heat and humidity, sturdy winds and muddy anaerobic soil that the group of plants ought to have extremely developed morphological and physiological variations to such extreme conditions These exceptional characteristics may result in the synthesis of novel chemical compounds; these chemical compounds recommend protection to those plants against numerous biotic and abiotic stresses [5].
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