Gibberellin Production and Plant Growth Enhancement by Newly Isolated Strain of Scolecobasidium tshawytschae

• Published in: Journal of microbiology and biotechnology Vol. 19; no. 6; pp. 560 - 565
• Main Authors: Hamayun, Muhammad, Kyungpook National University, Daegu, Republic of Korea, Khan, Sumera Afzal, Kyungpook National University, Daegu, Republic of Korea, Kim, H.Y., Kyungpook National University, Daegu, Republic of Korea, Chaudhary, Muhammad Fayyaz, Quaid-i-Azam University, Pakistan, Hwang, Y.H., Kyungpook National University, Daegu, Republic of Korea, Shin, D.H., Kyungpook National University, Daegu, Republic of Korea, Kim, I.K., Kyungpook National University, Daegu, Republic of Korea, Lee, B.H., Gyeongsang National University, Jinju, Republic of Korea, Lee, I.J., Kyungpook National University, Daegu, Republic of Korea
• Format: Journal Article
• Language: English
• Published: Seoul Korean Society for Applied Microbiology 01.06.2009; 한국미생물·생명공학회
• Subjects: 18S rDNA; ACIDE GIBBERELLIQUE; ACIDO GIBERELICO; Ascomycota - classification; Ascomycota - genetics; Ascomycota - metabolism; Biological and medical sciences; Biotechnology; DNA, Fungal - analysis; DNA, Fungal - genetics; endophytic fungi; Fundamental and applied biological sciences. Psychology; GIBBERELLIC ACID; Gibberellins - biosynthesis; Glycine max - growth & development; Glycine max - microbiology; Oryza - growth & development; Oryza - microbiology; Phylogeny; plant growth; RNA, Ribosomal, 18S - analysis; RNA, Ribosomal, 18S - genetics; Scolecobasidium tshawytschae; Sequence Analysis, DNA; Species Specificity; Symbiosis; waito-c rice; 생물학; plant growth; Monocotyledones; Growth; Ribosomal DNA; Gibberellin; 18S rDNA; gibberellins; waito-c rice; Scolecobasidium; Fungi; Oryza sativa; Gramineae; Scolecobasidium tshawytschae; endophytic fungi; Angiospermae; Production; Endophyte; Spermatophyta; Fungi Imperfecti; Rice
• ISSN: 1017-7825; 1738-8872
• DOI: 10.4014/jmb.0809.520

We isolated nine endophytic fungi from the roots of salt-stressed soybean cultivar Daewonkong and screened them for growth-promoting secondary metabolites. Of all fungal isolates, P-4-3 induced maximum growth promotion of waito-c rice and soybean. Analysis of the culture filtrate of P-4-3 showed the presence of physiologically active gibberellins GA₁, GA₃, GA₄, and GA∧7, along with physiologically inactive GA∧15, and GA∧24. The plant growth promotion and gibberellin-producing capacity of P-4-3 was much higher than wild-type Gibberella fujikuroi, which was taken as the control during the present study. The fungal isolate P-4-3 was identified as a new strain of Scolecobasidium tshawytschae through the morphological characteristics and phylogenetic analysis of 18S rDNA sequence. Gibberellins production and plant growth promoting ability of genus Scolecobasidium was reported for the first time in the present study.