A new strain of Arthrinium phaeospermum isolated from Carex kobomugi Ohwi is capable of gibberellin production |
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| Authors: | Sumera Afzal Khan Muhammad Hamayun Ho-youn Kim Hyeok-jun Yoon Jong-cheol Seo Yeon-sik Choo In-jung Lee Sang-dal Kim In-koo Rhee Jong-guk Kim |
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| Affiliation: | (1) Department of Life Science and Biotechnology, Kyungpook National University, Daegu, South Korea;(2) Department of Agronomy, Kyungpook National University, Daegu, South Korea;(3) Catholic University of Daegu, Daegu, South Korea;(4) Department of Life Science and Biotechnology, Kyungpook National University, Daegu, South Korea;(5) Yeungnam University, Gyeongsan, South Korea;(6) Department of Agricultural Chemistry, Kyungpook National University, Daegu, South Korea |
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| Abstract: | Plant growth-promoting endophytic fungi with gibberellin-producing ability were isolated from the roots of Carex kobomugi Ohwi, a common sand-dune plant, and bioassayed for plant growth-promotion. A new strain, Arthrinium phaeospermum KACC43901, promoted growth of waito-c rice and Atriplex gemelinii. Analysis of its culture filtrate showed the presence of bioactive GA1 (0.5 ng/ml), GA3 (8.8 ng/ml), GA4 (4.7 ng/ml) and GA7 (2.2 ng/ml) along with physiologically inactive GA5 (0.4 ng/ml), GA9 (0.6 ng/ml), GA12 (0.4 ng/ml), GA15 (0.4 ng/ml), GA19 (0.9 ng/ml) and GA24 (1.8 ng/ml). The fungal isolate was identified through sequence homology and phylogenetic analysis of 18S rDNA (internal transcribed region). Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users. |
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| Keywords: | Arthrinium phaeospermum Carex kobomugi Ohwi Gibberellin production Growth-promoting fungi Sand-dune flora |
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