Cladosporium sphaerospermum as a new plant growth-promoting endophyte from the roots of Glycine max (L.) Merr.

Muhammad Hamayun; Sumera Afzal Khan; Nadeem Ahmad; Dong Sheng Tang; Sang Mo Kang; Chae In Na; Eun Young Sohn; Young Hyun Hwang; Dong Hyun Shin; Byung Hyun Lee; Jong Guk Kim; In Jung Lee

doi:10.1007/s11274-009-9982-9

Cladosporium sphaerospermum as a new plant growth-promoting endophyte from the roots of Glycine max (L.) Merr.

Muhammad Hamayun, Sumera Afzal Khan, Nadeem Ahmad, Dong Sheng Tang, Sang Mo Kang, Chae In Na, Eun Young Sohn, Young Hyun Hwang, Dong Hyun Shin, Byung Hyun Lee, Jong Guk Kim, In Jung Lee

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Abstract

Endophytic fungi are plant symbionts that produce a variety of beneficial metabolites for plant growth and protection against herbivory and pathogens. Fourteen fungal samples were isolated from the roots of soybean cultivar Daemangkong and screened on waito-c rice for their plant growth-promoting capacity. Twelve of the fungal isolates promoted plant growth, while two inhibited it. The fungal isolate DK-1-1 induced maximum plant growth in both waito-c rice and soybean. The plant growth promotion capacity of DK-1-1 was higher than the wild type Gibberella fujikuroi. Gibberellin (GA) analysis of culture filtrate of DK-1-1 showed the presence of higher amounts of bioactive GA₃, GA₄, and GA₇ (6.62, 2.1 and 1.26 ng/mL, respectively) along with physiologically inactive GA₅, GA ₁₅, GA₁₉, and GA₂₄. Phylogenetic analysis of 18S rDNA sequence identified the fungal isolate as a new strain of Cladosporium sphaerospermum. Gibberellin production and plant growth-promoting ability of genus Cladosporium are reported for the first time in the present study.

Original language	English
Pages (from-to)	627-632
Number of pages	6
Journal	World Journal of Microbiology and Biotechnology
Volume	25
Issue number	4
DOIs	https://doi.org/10.1007/s11274-009-9982-9
State	Published - Apr 2009

Keywords

18S rDNA
Cladosporium sphaerospermum
Endophytic fungi
Gibberellins
Plant growth
Waito-c rice

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10.1007/s11274-009-9982-9

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Hamayun, M., Afzal Khan, S., Ahmad, N., Tang, D. S., Kang, S. M., Na, C. I., Sohn, E. Y., Hwang, Y. H., Shin, D. H., Lee, B. H., Kim, J. G., & Lee, I. J. (2009). Cladosporium sphaerospermum as a new plant growth-promoting endophyte from the roots of Glycine max (L.) Merr. World Journal of Microbiology and Biotechnology, 25(4), 627-632. https://doi.org/10.1007/s11274-009-9982-9

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title = "Cladosporium sphaerospermum as a new plant growth-promoting endophyte from the roots of Glycine max (L.) Merr.",

abstract = "Endophytic fungi are plant symbionts that produce a variety of beneficial metabolites for plant growth and protection against herbivory and pathogens. Fourteen fungal samples were isolated from the roots of soybean cultivar Daemangkong and screened on waito-c rice for their plant growth-promoting capacity. Twelve of the fungal isolates promoted plant growth, while two inhibited it. The fungal isolate DK-1-1 induced maximum plant growth in both waito-c rice and soybean. The plant growth promotion capacity of DK-1-1 was higher than the wild type Gibberella fujikuroi. Gibberellin (GA) analysis of culture filtrate of DK-1-1 showed the presence of higher amounts of bioactive GA3, GA4, and GA7 (6.62, 2.1 and 1.26 ng/mL, respectively) along with physiologically inactive GA5, GA 15, GA19, and GA24. Phylogenetic analysis of 18S rDNA sequence identified the fungal isolate as a new strain of Cladosporium sphaerospermum. Gibberellin production and plant growth-promoting ability of genus Cladosporium are reported for the first time in the present study.",

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AU - Ahmad, Nadeem

AU - Tang, Dong Sheng

AU - Kang, Sang Mo

AU - Na, Chae In

AU - Sohn, Eun Young

AU - Hwang, Young Hyun

AU - Shin, Dong Hyun

AU - Lee, Byung Hyun

AU - Kim, Jong Guk

AU - Lee, In Jung

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N2 - Endophytic fungi are plant symbionts that produce a variety of beneficial metabolites for plant growth and protection against herbivory and pathogens. Fourteen fungal samples were isolated from the roots of soybean cultivar Daemangkong and screened on waito-c rice for their plant growth-promoting capacity. Twelve of the fungal isolates promoted plant growth, while two inhibited it. The fungal isolate DK-1-1 induced maximum plant growth in both waito-c rice and soybean. The plant growth promotion capacity of DK-1-1 was higher than the wild type Gibberella fujikuroi. Gibberellin (GA) analysis of culture filtrate of DK-1-1 showed the presence of higher amounts of bioactive GA3, GA4, and GA7 (6.62, 2.1 and 1.26 ng/mL, respectively) along with physiologically inactive GA5, GA 15, GA19, and GA24. Phylogenetic analysis of 18S rDNA sequence identified the fungal isolate as a new strain of Cladosporium sphaerospermum. Gibberellin production and plant growth-promoting ability of genus Cladosporium are reported for the first time in the present study.

AB - Endophytic fungi are plant symbionts that produce a variety of beneficial metabolites for plant growth and protection against herbivory and pathogens. Fourteen fungal samples were isolated from the roots of soybean cultivar Daemangkong and screened on waito-c rice for their plant growth-promoting capacity. Twelve of the fungal isolates promoted plant growth, while two inhibited it. The fungal isolate DK-1-1 induced maximum plant growth in both waito-c rice and soybean. The plant growth promotion capacity of DK-1-1 was higher than the wild type Gibberella fujikuroi. Gibberellin (GA) analysis of culture filtrate of DK-1-1 showed the presence of higher amounts of bioactive GA3, GA4, and GA7 (6.62, 2.1 and 1.26 ng/mL, respectively) along with physiologically inactive GA5, GA 15, GA19, and GA24. Phylogenetic analysis of 18S rDNA sequence identified the fungal isolate as a new strain of Cladosporium sphaerospermum. Gibberellin production and plant growth-promoting ability of genus Cladosporium are reported for the first time in the present study.

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Cladosporium sphaerospermum as a new plant growth-promoting endophyte from the roots of Glycine max (L.) Merr.

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Keywords

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