Diversity of Microorganisms Isolated from the Soil Sample surround Chroogomphus rutilus in the Beijing Region

• Main Author: Peng Wang, Yu Liu, Yonggang Yin, Haojie Jin, Shouxian Wang, Feng Xu, Shuang Zhao, Xiaoli Geng
• Format: Article
• Language: English
• Published: Ivyspring International Publisher 2011-01-01
• Series: International Journal of Biological Sciences
• Online Access: http://www.biolsci.org/v07p0209.htm

<p>Artificially cultivating <i>Chroogomphus rutilus</i> is too inefficient to be commercially feasible. Furthermore, isolating <i>C</i>. <i>rutilus</i> mycelia in the wild is difficult. Thus, it is important to determine the natural habitat of its fruiting body. This study focused on the ecology of the <i>C</i>.<i> rutilus</i> habitat to isolate and classify beneficial microorganisms that could affect its growth, which could be used in future research on artificial cultivation. In total, 342 isolates were isolated from soil samples collected around a <i>C</i>.<i> rutilus</i> colony in the Beijing region. Of these, 22 bacterial and 14 fungal isolates were selected for sequencing and phylogenetic analysis, based on their growth characteristics and colony morphology. Using 16S rRNA gene sequence analysis, the bacterial isolates were divided into two monophyletic clusters which had significant hits to the genera <i>Bacillus</i> and <i>Pseudomonas</i>, respectively. Using internal transcribed spacer (ITS) sequence analysis, fungal isolates were divided into four monophyletic clusters: <i>Penicillium</i>, <i>Trichoderma</i>, <i>Mortierella</i>, and <i>Bionectria</i>. Moreover, the phylogenetic diversity of these isolates was analysed. The results indicated that numerous microorganisms were present in <i>C</i>.<i> rutilus</i> habitat. This was the first reported examination of the microbiological ecology of <i>C</i>.<i> rutilus</i>.</p>