Abstract
Background/objectives: Mangroves are one of the most diverse ecosystems on the earth and harbours many organisms, including extremophiles which help the ecosystem to grow and survive despite harsh environment. These microbes produce novel enzymes as well as secondary metabolites that find major applications in extreme environments. Methodology: In this study, total 56 bacteria were isolated from rhizospheric soil of mangrove collected from seven sampling sites of Gujarat, India i.e. Kandla, Mundra, Tuna, Guneri, Machhad, Diu, and Madhwad. These isolates were screened for their production of extracellular hydrolytic enzymes i.e. amylase, protease, cellulase, and catalase. All the isolates were also assessed for their ability to survive in different salt concentration ranging from 0.5% to 25% in Zobell marine agar. Findings: After 48 h of incubation, isolates K10–2(11)ZO and M100(5)NASW had the highest amylase activity, K100(1)NASW had the highest cellulase activity, and G10–2(9)ZO had the highest protease activity. Among all sites, Madhwad had the highest catalase positives. Three isolates named as MD10–2C3, MW10–3C2, and MWC4 emerged as possible extreme halotolerant and were able to grow at 25% of salt concentration while Diu10–4C1, MW10–3, and G10–1(5) ZO were also possible halotolerant and were able grow in till 20% of salt concentration. Application/ improvements: Few isolates that had showed higher extracellular enzyme activity and could be potential high producers that can be used in industries such as detergent industry, textile industries, environmental remediation, etc.Keywords: Mangroves, Enzymes, Cellulase, Amylase, Protease, Extreme Halotolerant
Highlights
Mangrove forests constitute a large portion of the coastline in the tropical and subtropical regions, where they play an important role in protecting the coastal diversity, protecting the coast from erosion and maintaining water levels
The microorganisms play a crucial role in productivity, conservation, and atmosphere recovery, where they participate within the biogeochemical cycles and provide plant and animals with primary nutritionary sources.[1,2]
The enzymes and secondary metabolites produced by these microbes possess the ability to withstand such extreme environments and this characteristic makes them unique
Summary
Mangrove forests constitute a large portion of the coastline in the tropical and subtropical regions, where they play an important role in protecting the coastal diversity, protecting the coast from erosion and maintaining water levels. The microorganisms play a crucial role in productivity, conservation, and atmosphere recovery, where they participate within the biogeochemical cycles and provide plant and animals with primary nutritionary sources.[1,2] tropical mangroves are among the foremost productive ecosystems which are being characterised by high rates of organic matter and nutrient cycling.[3] Microbes in this ecosystem convert the dead biological materials from the mangrove plants such as leaves, branches, fruits, and other animal’s dead bodies into other simple sources making them available to other living organisms helping in running element cycles. The enzymes and secondary metabolites produced by these microbes possess the ability to withstand such extreme environments and this characteristic makes them unique
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
