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Title: Atractiella rhizophila , sp. nov., an endorrhizal fungus isolated from the Populus root microbiome

Journal Article · · Mycologia
 [1];  [2];  [3];  [4];  [2];  [4];  [5];  [6];  [2]
  1. Michigan State Univ., East Lansing, MI (United States). Dept. of Plant Soil and Microbial Sciences
  2. Duke Univ., Durham, NC (United States). Biology Dept.
  3. Ministry for Primary Industries, Auckland (New Zealand). Dept. of Plant Pathology
  4. Univ. of Florida, Gainesville, FL (United States). Botany and Plant Pathology
  5. Purdue Univ., West Lafayette, IN (United States). Botany and Plant Pathology
  6. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Environmental Science Division
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We discovered a new endorrhizal fungal species belonging to the rust lineage Pucciniomycotina among fungi isolated from healthy root mycobiomes of Populus and described here as Atractiella rhizophila. Here, we characterized this species by transmission electron microscopy (TEM), phylogenetic analysis, and plant bioassay experiments. Phylogenetic sequence analysis of isolates and available environmental and reference sequences indicates that this new species, A. rhizophila, has a broad geographic and host range. Atractiella rhizophila appears to be present in North America, Australia, Asia, and Africa and is associated with trees, orchids, and other agriculturally important species, including soybean, corn, and rice. Despite the large geographic and host range of this species sampling, A. rhizophila appears to have exceptionally low sequence variation within nuclear rDNA markers examined. With inoculation studies, we show that A. rhizophila is nonpathogenic, asymptomatically colonizes plant roots, and appears to foster plant growth and elevated photosynthesis rates.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1361312
Journal Information:
Mycologia, Vol. 109, Issue 1; ISSN 0027-5514
Publisher:
Taylor & FrancisCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 16 works
Citation information provided by
Web of Science

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Cited By (5)

Ionosporus: a new genus for Boletus longipes (Boletaceae), with a new species, I. australis, from Australia journal March 2019
Potential of a halophyte-associated endophytic fungus for sustaining Chinese white poplar growth under salinity journal February 2018
Notes, outline and divergence times of Basidiomycota journal November 2019
Effects of endophytic and ectomycorrhizal basidiomycetes on Quercus virginiana seedling growth and nutrient absorption journal January 2019
Fungal-Bacterial Networks in the Populus Rhizobiome Are Impacted by Soil Properties and Host Genotype journal March 2019

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Related Subjects

59 BASIC BIOLOGICAL SCIENCES
60 APPLIED LIFE SCIENCES
Basidiomycete
plant microbiome
root endophyte
sterile mycelium