Interaction between an isolate of dark-septate fungi and its host plant Saussurea involucrata

Mycorrhiza
Liqin Wu, Shun-Xing Guo

Abstract

A dark-septate endophytic (DSE) fungus EF-M was isolated from the roots of an alpine plant Saussurea involucrata Kar. et Kir. ex Maxim. The fungus was identified by sequencing the PCR-amplified rDNA 5.8S gene and ITS regions. The sequence was compared with similar sequences in the GenBank, and results showed that EF-M was congeneric to Leptodontidium. Resynthesis study was conducted to clarify the relationship between the root endophyte EF-M and the host plant S. involucrata using the material grown in sterile culture bottle. In roots recovered 6 weeks after inoculation, epidermal cells were colonized by intercellular and intracellular hyphae and "microsclerotia" formed within individual cells in the epidermis layers. However, hyphae did not invade the cortex and the stele. There were no profound effects of endophyte EF-M on plant root development, but significant differences were detected in plant height and shoot dry weight between the treatments. The present study is the first report hitherto on DSE fungi in S. involucrata.

Citations

Dec 25, 2010·Mycorrhiza·Diana Rocio Andrade-LinaresPhilipp Franken
Sep 18, 2012·Mycorrhiza·Michael S MayerhoferKaren A Harper
Mar 1, 2012·The Journal of Microbiology·Hai-Han ZhangYa-Jun Wang
May 30, 2013·Journal of Ginseng Research·Young-Hwan ParkHanhong Bae
Jan 20, 2011·The New Phytologist·K K Newsham
Jan 8, 2016·Mycologia·Joey Brent TanneyKeith A Seifert
Sep 11, 2017·Brazilian Journal of Microbiology : [publication of the Brazilian Society for Microbiology]·Carlos VergaraJerri Édson Zilli
Jul 3, 2015·Microbiology and Molecular Biology Reviews : MMBR·Pablo R HardoimAngela Sessitsch
Jul 28, 2017·Scientific Reports·Milan KotilínekJiří Doležal

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