Diversity and Plant Growth Promoting Capacity of Endophytic Fungi Associated with Halophytic Plants from the West Coast of Korea

Five halophytic plant species, Suaeda maritima, Limonium tetragonum, Suaeda australis, Phragmites australis, and Suaeda glauca Bunge, which are native to the Muan salt marsh of South Korea, were examined for fungal endophytes by sequencing the internal transcribed spacer (ITS) region containing ITS1...

Full description

Saved in:
Bibliographic Details
Published inMycobiology Vol. 43; no. 4; pp. 373 - 383
Main Authors Khalmuratova, Irina, Kim, Hyun, Nam, Yoon-Jong, Oh, Yoosun, Jeong, Min-Ji, Choi, Hye-Rim, You, Young-Hyun, Choo, Yeon-Sik, Lee, In-Jung, Shin, Jae-Ho, Yoon, Hyeokjun, Kim, Jong-Guk
Format Journal Article
LanguageKorean
Published 한국균학회 31.12.2015
Subjects
Fungal endophytes
Genetic diversity
Gibberellin
Halophytic plants
Plant growth promotion
Salt marsh
Fungal endophytes
Salt marsh
Gibberellin
Genetic diversity
Plant growth promotion
Halophytic plants
Online AccessGet full text

Cover

More Information
Summary:Five halophytic plant species, Suaeda maritima, Limonium tetragonum, Suaeda australis, Phragmites australis, and Suaeda glauca Bunge, which are native to the Muan salt marsh of South Korea, were examined for fungal endophytes by sequencing the internal transcribed spacer (ITS) region containing ITS1, 5.8S rRNA, and ITS2. In total, 160 endophytic fungal strains were isolated and identified from the roots of the 5 plant species. Taxonomically, all 160 strains belonged to the phyla Ascomycota, Basidiomycota, and Zygomycota. The most dominant genus was Fusarium, followed by the genera Penicillium and Alternaria. Subsequently, using 5 statistical methods, the diversity indices of the endophytes were determined at genus level. Among these halophytic plants, P. australis was found to host the greatest diversity of endophytic fungi. Culture filtrates of endophytic fungi were treated to Waito-C rice seedlings for plant growth-promoting effects. The fungal strain Su-3-4-3 isolated from S. glauca Bunge provide the maximum plant length (20.1 cm) in comparison with wild-type Gibberella fujikuroi (19.6 cm). Consequently, chromatographic analysis of the culture filtrate of Su-3-4-3 showed the presence of physiologically active gibberellins, GA1 (0.465 ng/mL), GA3 (1.808 ng/mL) along with other physiologically inactive GA9 (0.054 ng/mL) and GA24 (0.044 ng/mL). The fungal isolate Su-3-4-3 was identified as Talaromyces pinophilus.
Bibliography:The Korean Society of Mycology
KISTI1.1003/JNL.JAKO201503340353391
ISSN:1229-8093
2092-9323