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CLC number: S432.1

On-line Access: 2013-04-03

Received: 2012-09-06

Revision Accepted: 2012-11-09

Crosschecked: 2013-03-15

Cited: 4

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Journal of Zhejiang University SCIENCE B 2013 Vol.14 No.4 P.336-345


Ultrastructure and phylogeny of Ustilago coicis

Author(s):  Jing-ze Zhang, Pei-gang Guan, Gang Tao, Mohammad Reza Ojaghian, Kevin David Hyde

Affiliation(s):  Institute of Biotechnology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China; more

Corresponding email(s):   jzzhang@zju.edu.cn

Key Words:  Fungus-host interaction, Molecular phylogenetics, Smut, Teliospore wall development

Jing-ze Zhang, Pei-gang Guan, Gang Tao, Mohammad Reza Ojaghian, Kevin David Hyde. Ultrastructure and phylogeny of Ustilago coicis[J]. Journal of Zhejiang University Science B, 2013, 14(4): 336-345.

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publisher="Zhejiang University Press & Springer",

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%A Jing-ze Zhang
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%A Gang Tao
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%DOI 10.1631/jzus.B1200239

T1 - Ultrastructure and phylogeny of Ustilago coicis
A1 - Jing-ze Zhang
A1 - Pei-gang Guan
A1 - Gang Tao
A1 - Mohammad Reza Ojaghian
A1 - Kevin David Hyde
J0 - Journal of Zhejiang University Science B
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.B1200239

Ustilago coicis causes serious smut on Coix lacryma-jobi in Dayang Town, Jinyun County, Zhejiang Province of China. In this paper, ultrastructural assessments on fungus-host interactions and teliospore development are presented, and molecular phylogenetic analyses have been done to elucidate the phylogenetic placement of the taxon. Hyphal growth within infected tissues was both intracellular and intercellular and on the surface of fungus-host interaction, and the fungal cell wall and the invaginated host plasma membrane were separated by a sheath comprising two distinct layers between the fungal cell wall and the invaginated host plasma membrane. Ornamentation development of teliospore walls was unique as they appeared to be originated from the exosporium. In addition, internal transcribed spacer (ITS) and large subunit (LSU) sequence data showed that U. coicis is closely related to Ustilago trichophora which infects grass species of the genus Echinochloa (Poaceae).

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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