Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 550693
Title Distinct arbuscular mycorrhizal fungal communities associate with different manioc landraces and Amazonian soils
Author(s) Peña-Venegas, Clara P.; Kuijper, Thomas; Davison, John; Jairus, Teele; Vasar, Martti; Stomph, Tjeerd Jan; Struik, Paul C.; Öpik, Maarja
Source Mycorrhiza 29 (2019)3. - ISSN 0940-6360 - p. 263 - 275.
Department(s) Centre for Crop Systems Analysis
Soil Biology
Crop Physiology
Publication type Refereed Article in a scientific journal
Publication year 2019
Keyword(s) Amazon region - Arbuscular mycorrhizal fungal virtual taxa - Cassava - Manihot esculenta - Shifting agriculture
Abstract Manioc (Manihot esculenta Crantz) is an important tropical crop that depends on arbuscular mycorrhizal (AM) association for its nutrition. However, little is known about the richness and species composition of AM fungal communities associating with manioc and possible differences across soils and manioc landraces. We studied the diversity and composition of AM fungal communities present in the roots of different manioc landraces and surrounding soils in indigenous shifting cultivation fields on different Amazonian soil types. A total of 126 AM fungal virtual taxa (VT; phylogenetically defined taxonomic units) were recovered from soil and root samples using 454 sequencing of AM fungal SSU rRNA gene amplicons. Different AM fungal communities occurred in different soil types. Minor differences occurred in the composition of AM fungal community associating with different manioc landraces, but AM fungal richness was not different among them. There was a low similarity between the AM fungal communities colonizing manioc roots and those recorded in the soil, independently of differences in soil properties or the manioc landrace evaluated. Rhizophagus manihotis and Glomus VT126 were the most abundant AM fungal species colonizing manioc roots. Contrasting with the results of earlier spore-based investigations, all the AM fungi identified as indicator species of particular manioc landraces were morphologically unknown Glomus species. In conclusion, different manioc landraces growing in common conditions associated with distinct AM fungal communities, whereby AM fungal communities in soils did not necessarily reflect the AM fungal communities colonizing manioc roots.
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