soil microbiomes – mycolab.ai

Arbuscular mycorrhiza suppresses microbial abundance, and particularly that of ammonia oxidizing bacteria, in agricultural soils

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This study examined how a common soil fungus called arbuscular mycorrhiza affects bacteria and archaea that process ammonia in agricultural soils. Using 50 different soils from the Czech Republic, researchers found that the fungus suppresses ammonia-oxidizing bacteria but not archaea. Interestingly, the fungus actually increased ammonia levels in soil rather than depleting them, suggesting the suppression works through mechanisms beyond simple competition for nutrients.

Ancient Microbiomes as Mirrored by DNA Extracted From Century-Old Herbarium Plants and Associated Soil

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Scientists extracted and analyzed ancient DNA from plant roots and soil samples stored in herbarium collections for over 120 years. The DNA showed typical signs of age and preserved microbial communities that originally lived in the soil around these plants. By comparing these ancient microbial communities to modern ones, researchers found that herbarium storage preserved the original characteristics of soil microbiomes, making these museum specimens valuable for studying how farming practices have changed soil ecosystems over time.

Research Keyword: soil microbiomes

Arbuscular mycorrhiza suppresses microbial abundance, and particularly that of ammonia oxidizing bacteria, in agricultural soils

Ancient Microbiomes as Mirrored by DNA Extracted From Century-Old Herbarium Plants and Associated Soil