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Congolese rhizospheric soils as a rich source of new plant growth-promoting endophytic Piriformospora isolates

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Abstract
In the last decade, there has been an increasing focus on the implementation of plant growth-promoting (PGP) organisms as a sustainable option to compensate for poor soil fertility conditions in developing countries. Trap systems were used in an effort to isolate PGP fungi from rhizospheric soil samples collected in the region around Kisangani in the Democratic Republic of Congo. With sudangrass as a host, a highly conducive environment was created for sebacinalean chlamydospore formation inside the plant roots resulting in a collection of 51 axenically cultured isolates of the elusive genus Piriformospora (recently transferred to the genus Serendipita). Based on morphological data, ISSR fingerprinting profiles and marker gene sequences, we propose that these isolates together with Piriformospora williamsii constitute a species complex designated Piriformospora (= Serendipita) 'williamsii.' A selection of isolates strongly promoted plant growth of in vitro inoculated Arabidopsis seedlings, which was evidenced by an increase in shoot fresh weight and a strong stimulation of lateral root formation. This isolate collection provides unprecedented opportunities for fundamental as well as translational research on the Serendipitaceae, a family of fungal endophytes in full expansion.
Keywords
integrated soil fertility management, plant growth-promoting tropical endophytes, Sebacinales, species complex, TEF1 alpha gene, ARBUSCULAR-MYCORRHIZAL FUNGI, DARK SEPTATE ENDOPHYTES, ROOT ENDOPHYTE, ARABIDOPSIS-THALIANA, INNATE IMMUNITY, POT CULTURES, TRAP CULTURE, INDICA, COLONIZATION, DIVERSITY

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Chicago
Venneman, Jolien, Kris Audenaert, Jan Verwaeren, Geert Baert, Pascal Boeckx, Adrien M Moango, Benoît D Dhed’a, Danny Vereecke, and Geert Haesaert. 2017. “Congolese Rhizospheric Soils as a Rich Source of New Plant Growth-promoting Endophytic Piriformospora Isolates.” Frontiers in Microbiology 8.
APA
Venneman, J., Audenaert, K., Verwaeren, J., Baert, G., Boeckx, P., Moango, A. M., Dhed’a, B. D., et al. (2017). Congolese rhizospheric soils as a rich source of new plant growth-promoting endophytic Piriformospora isolates. FRONTIERS IN MICROBIOLOGY, 8.
Vancouver
1.
Venneman J, Audenaert K, Verwaeren J, Baert G, Boeckx P, Moango AM, et al. Congolese rhizospheric soils as a rich source of new plant growth-promoting endophytic Piriformospora isolates. FRONTIERS IN MICROBIOLOGY. 2017;8.
MLA
Venneman, Jolien, Kris Audenaert, Jan Verwaeren, et al. “Congolese Rhizospheric Soils as a Rich Source of New Plant Growth-promoting Endophytic Piriformospora Isolates.” FRONTIERS IN MICROBIOLOGY 8 (2017): n. pag. Print.
@article{8520866,
  abstract     = {In the last decade, there has been an increasing focus on the implementation of plant growth-promoting (PGP) organisms as a sustainable option to compensate for poor soil fertility conditions in developing countries. Trap systems were used in an effort to isolate PGP fungi from rhizospheric soil samples collected in the region around Kisangani in the Democratic Republic of Congo. With sudangrass as a host, a highly conducive environment was created for sebacinalean chlamydospore formation inside the plant roots resulting in a collection of 51 axenically cultured isolates of the elusive genus Piriformospora (recently transferred to the genus Serendipita). Based on morphological data, ISSR fingerprinting profiles and marker gene sequences, we propose that these isolates together with Piriformospora williamsii constitute a species complex designated Piriformospora (= Serendipita) 'williamsii.' A selection of isolates strongly promoted plant growth of in vitro inoculated Arabidopsis seedlings, which was evidenced by an increase in shoot fresh weight and a strong stimulation of lateral root formation. This isolate collection provides unprecedented opportunities for fundamental as well as translational research on the Serendipitaceae, a family of fungal endophytes in full expansion.},
  articleno    = {212},
  author       = {Venneman, Jolien and Audenaert, Kris and Verwaeren, Jan and Baert, Geert and Boeckx, Pascal and Moango, Adrien M and Dhed{\textquoteright}a, Beno{\^i}t D and Vereecke, Danny and Haesaert, Geert},
  issn         = {1664-302X},
  journal      = {FRONTIERS IN MICROBIOLOGY},
  keyword      = {integrated soil fertility management,plant growth-promoting tropical endophytes,Sebacinales,species complex,TEF1 alpha gene,ARBUSCULAR-MYCORRHIZAL FUNGI,DARK SEPTATE ENDOPHYTES,ROOT ENDOPHYTE,ARABIDOPSIS-THALIANA,INNATE IMMUNITY,POT CULTURES,TRAP CULTURE,INDICA,COLONIZATION,DIVERSITY},
  language     = {eng},
  pages        = {15},
  title        = {Congolese rhizospheric soils as a rich source of new plant growth-promoting endophytic Piriformospora isolates},
  url          = {http://dx.doi.org/10.3389/fmicb.2017.00212},
  volume       = {8},
  year         = {2017},
}

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