Endophytes from an Australian native plant are a promising source of industrially useful enzymes

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Endophytes from an Australian native plant are a promising source of industrially useful enzymes

Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/236586

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Title: Endophytes from an Australian native plant are a promising source of industrially useful enzymes
Author(s): Zaferanloo, Bita; Virkar, Aditya; Mahon, Peter J.; Palombo, Enzo A.
Abstract: Endophytes are microorganisms that live within plant tissues that are potential sources of novel bioactive compounds, including enzymes. We have identified endophytes of the Australian native plant Eremophilia longifolia which were screened for the production of industrially useful enzymes. Seventeen fungal endophytes were isolated from the leaves of E. longifolia and enzyme production was investigated within a range of pH (3.5, 5.5, 7 and 9) and temperatures (9, 25, 37 and 50°C). Amylase was the most common enzyme encountered with numerous isolates showing production throughout the temperature and pH ranges. Protease production was also seen over the conditions tested but was more dominant at lower pH and temperature. Activity was not observed for other enzymes including ligninase, xylanase and cellobiohydrolase. Enzymes from isolates of Preussia minima, Alternaria sp. and an unclassified fungus, which showed highest activity in screening assays, were investigated further. Enzyme production was verified by zymography and the amylase activity of P. minima was found to be significantly greater than that of Aspergillus oryzae particularly in alkaline conditions and low temperature which are desirable properties for the detergent industry. This work shows that enzymes with potential use in industry can be readily identified in fungal endophytes.
Publication type: Journal article
Research centre: Swinburne University of Technology. Faculty of Life and Social Sciences. Environment and Biotechnology Centre
Source: World Journal of Microbiology and Biotechnology, Vol. 29, no. 2 (Feb 2013), pp. 335-345
Publication year: 2013
FOR Code(s): 06 Biological Sciences; 10 Technology
Keyword(s): Amylase; Endophytic fungi; Eremophilia longifolia; Preussia minima; Zymography
Publisher: Springer
ISSN: 0959-3993
Publisher URL: http://dx.doi.org/10.1007/s11274-012-1187-y
Peer reviewed