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Cadophora malorum Cs‐8‐1 as a new fungal strain producing gibberellins isolated from Calystegia soldanella
Author(s) -
You YoungHyun,
Yoon Hyeokjun,
Kang SangMo,
Woo JuRi,
Choo YeonSik,
Lee InJung,
Shin JaeHo,
Kim JongGuk
Publication year - 2013
Publication title -
journal of basic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.58
H-Index - 54
eISSN - 1521-4028
pISSN - 0233-111X
DOI - 10.1002/jobm.201200002
Subject(s) - plant use of endophytic fungi in defense , strain (injury) , gibberellin , botany , biology , horticulture , chemistry , anatomy
Fourteen endophytic fungi with different colony morphologies were isolated from the roots of Calystegia soldanella . Endophytic fungi isolated from C. soldanella were identified by internal transcribed spacer (ITS) region. To verify plant growth promotion (PGP), culture filtrates of isolated endophytic fungi were treated in Waito‐c rice (WR) and C. soldanella seedlings. Culture filtrates of Cs‐8‐1 fungal strain had advanced PGP activity. The presence of physiologically bioactive gibberellins (GA) GA 1 (1.213 ng ml −1 ), GA 3 (1.292 ng ml −1 ), GA 4 (3.6 ng ml −1 ), GA 7 (1.328 ng ml −1 ), other inactive GA 9 (0.796 ng ml −1 ) and GA 12 (0.417 ng ml −1 ), GA 20 (0.302 ng ml −1 ), GA 24 (1.351 ng ml −1 ), GA 34 (0.076 ng ml −1 ), and GA 53 (0.051 ng ml −1 ) in culture filtrates of Cs‐8‐1 fungal strain was detected. The Cs‐8‐1 fungal strain was confirmed as a producer of GAs. Molecular analysis of sequences showed high similarity of 99% to Cadophora malorum . Consequentially, the Cs‐8‐1 fungal strain was identified as a new C. malorum producing GAs.