「複数の結果から最適解を導く」は公衆衛生領域では普通の考え方だと思うのと同時に、生命現象のメカニズムを特定するなどの基礎研究では「真実は１つ」と考える人が多いイメージ。基礎研究と疫学研究も両方触った私の個人的意見ですが…

「真実はいつもひとつ！」って科学を歪ませないだろうか。複数ある真実から最善解をみんなで捻り出すのが常じゃないだろうか。

#メタゲノム、#土壌 メタゲノム解析用に土壌からDNAを取っていますが、DNeasy PowerSoil Pro Kitsなどのbeads破砕系のキットを使うとDNAが断片化したり、そもそも取れなかったりします。 安定して長鎖DNAを抽出する方法を知ってる方いたら教えてください🙇‍♂️

Scientists have mapped Earth’s vast underground fungal networks for the first time, revealing a staggering 68 quadrillion miles of fungal threads that help regulate the climate. A groundbreaking new study estimates that arbuscular mycorrhizal fungi form an underground network stretching roughly 110 quadrillion kilometers (68 quadrillion miles), equivalent to nearly a billion times the distance from Earth to the Sun. These microscopic fungal threads create symbiotic relationships with over 70% of land plants, exchanging nutrients and water for carbon while locking away massive amounts of CO₂ in the soil. The research, led by the Society for the Protection of Underground Networks (SPUN), used machine learning models trained on data from more than 16,000 global soil cores, combined with high-resolution robotic imaging of fungal hyphae. However, these critical networks face a serious threat from modern industrial agriculture. Fungal density in croplands is nearly 50% lower than in undisturbed ecosystems, largely due to tilling, chemical fertilizers, and fungicides. This loss reduces the soil’s ability to store carbon, weakens nutrient cycling, and increases chemical runoff. The findings underscore the urgent need to protect these hidden ecosystems. Researchers plan to present the data at the upcoming UN desertification summit to push for global conservation benchmarks. [Stewart, J. D., et al. (2026). Global density and biomass of arbuscular mycorrhizal fungal networks. Science. DOI: 10.1126/science.adu4373]