Congolese Rhizospheric Soils as a Rich Source of New Plant Growth-Promoting Endophytic Piriformospora Isolates
Autor: | Kris Audenaert, Danny Vereecke, Jan Verwaeren, Pascal Boeckx, Geert Haesaert, Benoît D. Dhed’a, Jolien Venneman, Adrien M. Moango, Geert Baert |
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Jazyk: | angličtina |
Rok vydání: | 2017 |
Předmět: |
0106 biological sciences
0301 basic medicine Microbiology (medical) food.ingredient INDICA DIVERSITY TRAP CULTURE 01 natural sciences ROOT ENDOPHYTE Microbiology COLONIZATION 03 medical and health sciences food Botany integrated soil fertility management species complex Lateral root formation Original Research biology ARBUSCULAR-MYCORRHIZAL FUNGI Host (biology) plant growth-promoting tropical endophytes Biology and Life Sciences Sebacinales TEF1 alpha gene DARK SEPTATE ENDOPHYTES Chlamydospore formation biology.organism_classification POT CULTURES 030104 developmental biology Earth and Environmental Sciences Shoot ARABIDOPSIS-THALIANA INNATE IMMUNITY TEF1α gene Piriformospora Soil fertility Serendipita 010606 plant biology & botany |
Zdroj: | Frontiers in Microbiology FRONTIERS IN MICROBIOLOGY |
ISSN: | 1664-302X |
Popis: | 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. |
Databáze: | OpenAIRE |
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