Mycobiology.
2015 Mar;43(1):87-91. 10.5941/MYCO.2015.43.1.87.
Aspergillus clavatus Y2H0002 as a New Endophytic Fungal Strain Producing Gibberellins Isolated from Nymphoides pe ltata in Fresh Water
- Affiliations
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- 1School of Life Science, Kyungpook National University, Daegu 702-701, Korea. kimjg@knu.ac.kr
- 2National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration, Jeonju 560-500, Korea.
- 3Biomedical Research Institute, Pusan National University Hospital, Busan 602-739, Korea.
- 4School of Applied Biosciences, Kyungpook National University, Daegu 702-701, Korea.
- KMID: 2312799
- DOI: http://doi.org/10.5941/MYCO.2015.43.1.87
Abstract
- Eighteen endophytic fungi with different colony morphologies were isolated from the roots of Nymphoides peltata growing in the Dalsung wetland. The fungal culture filtrates of the endophytic fungi were treated to Waito-c rice seedling to evaluate their plant growth-promoting activities. Culture filtrate of Y2H0002 fungal strain promoted the growth of the Waito-c rice seedlings. This strain was identified on the basis of sequences of the partial internal transcribed spacer region and the partial beta-tubulin gene. Upon chromatographic analysis of the culture filtrate of Y2H0002 strain, the gibberellins (GAs: GA1, GA3, and GA4) were detected and quantified. Molecular and morphological studies identified the Y2H0002 strain as belonging to Aspergillus clavatus. These results indicated that A. clavatus improves the growth of plants and produces various GAs, and may participate in the growth of plants under diverse environmental conditions.
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