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Forskningsartikel - Refereegranskat, 2009

Development of an activation tagging system for the basidiomycetous medicinal fungus Antrodia cinnamomea

Chen, Emily Chin-Fun; Su, Yu-Hsiu; Kanagarajan, Selvaraju; Agrawal, Dinesh Chandra; Tsay, Hsin-Sheny


This study describes the development of an efficient and reliable activation tagging system for the medicinal fungus Antrodia cinnamomea. For successful Agrobacterium tumefaciens-mediated transformation, different parameters were considered. The Agrobacterium concentration of 5 x 10(8) cfu ml(-1), 1 mm acetosyringone, 25-d-old mycelia at 0.2 g ml(-1), and co-culture period of 6 d were found to be the most optimal conditions for enhancing the transformation efficiency. The mitotic stability of transferred DNA (T-DNA) was demonstrated by growing eight randomly selected putative transformants in malt extract agar medium for five subcultures. insertion of T-DNA into the genome of transformants was confirmed by PCR and Southern hybridization. Results showed that 88% of the mutants contained a single T-DNA insertion. Two of the mutants were observed with different triterpenoid profiles compared with the untransformed cultures. Our results suggest a new functional genomics approach to tag the triterpenoid biosynthesis genes in A. cinnamomea. (c) 2008 The British Mycological Society. Published by Elsevier Ltd. All rights reserved.


Activation tagging; Agrobacterium tumefaciens; Antrodia cinnamoma; Fungus; Transformation

Publicerad i

Mycological Research
2009, Volym: 113, nummer: 3, sidor: 290-297

    UKÄ forskningsämne

    Biochemistry and Molecular Biology

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