Endophytic Fungi from Frankincense Tree Improves Host Growth and Produces Extracellular Enzymes and Indole Acetic Acid

The present study aimed to explore endophytic fungal diversity, the potential of these fungi to produce extracellular enzymes and indole acetic acid

Abdul Latif Khan; Ahmed Al-Harrasi; Ahmed Al-Rawahi; Zainab Al-Farsi; Aza Al-Mamari; Muhammad Waqas; Sajjad Asaf; Ali Elyassi; Fazal Mabood; Jae-Ho Shin; In-Jung Lee

2016

Scholarcy highlights

  • Besides production of plant growth-promoting hormones, endophytes have been found to produce various types of extracellular enzymes such as phosphatase, zylanase, cellulases etc
  • Boswellia sacra is one of the economically important frankincense- or olibanum-producing trees of the Sultanate of Oman
  • A total of 30 trees were selected for sample collection and approximately 120 stem and 185 leaf samples were sterilized for endophytic fungal isolation
  • The results showed that more than 50% of the fungi were from leaves, 38% were from stems
  • Most of the fungal sequences showed 95–100% homology with related fungi. Based on this 95–100% sequence similarity, we identified the fungal strains as species of Chaetomium sp., Preussia sp., Penicillium citrinum, Thielavia arenaria, Phoma sp., Aureobasidium sp., and Dothideomycetes sp., Sordariomycetes sp. and Fusarium proliferatum
  • The B. sacra tree has been the focus of scientific attention due to its long history of medicinal uses in Arabic culture
  • The results showed that the application of endophytes significantly increased the shoot length, internodes, and leaves in comparison to controls
  • BSL10 to the host B. sacra saplings appreciably increased the shoot length, leaf number, internodes and quantities of photosynthetic pigments. This is in agreement with previous reports, which showed that endophytic inoculation to the host plants resulted in the improvement of growth and stress tolerance

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