• Different community compositions between obligate and facultative oomycete plant parasites in a landscape-scale metabarcoding survey

    15 days ago - By Springer

    Abstract
    Oomycetes are a ubiquitous protistan lineage including devastating crop parasites. Although their ecology in agrosystems has been widely studied, little is known of their distribution in natural and semi-natural ecosystems and how they respond to edaphic and environmental factors. We provide here a baseline of the diversity and distribution of soil oomycetes, classified by lifestyles , at the landscape scale in temperate grassland and forest. From 600 soil samples, we obtained 1148 operational taxonomy units representing ~ 20 million Illumina reads. We found a majority of...
    Read more ...

     

  • Effect of protists on rhizobacterial community composition and rice plant growth in a biochar amended soil

    15 days ago - By Springer

    Abstract
    The effects of protists on an indigenous soil bacterial community, putative bacterial genes involved in N-cycling, and the rice plant growth were studied in poultry litter biochar and rice husk biochar amended (with two application doses: 2% and 4% w/w) paddy field soil. The bacterial community composition, which was evaluated using 16S rRNA gene amplicon sequencing, was significantly and differentially affected by the protists, the PL and the RH. The effects of protists on the bacterial community composition were decreased by the RH and the PL treatments. The number of...
    Read more ...