Edaphic drought reduces phosphorus (P) diffusivity in soils and arbuscular mycorrhizal fungi (AMF) can compensate for this. We recently showed, along a high-resolution substrate moisture gradient, that AMF effectively deliver P to plants under drought from areas beyond the reach of roots. Here, we investigated how edaphic drought affected the active sites of P exchange between AMF and plants inside the roots using different histochemical stains.

中文翻译：

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干旱加剧了菌根在磷吸收中的作用，第二部分——自由基内酶反应

土壤干旱降低了土壤中磷 (P) 的扩散率，而丛枝菌根真菌 (AMF) 可以弥补这一点。我们最近表明，沿着高分辨率基质湿度梯度，AMF 可以有效地将磷从根部无法到达的区域输送到干旱条件下的植物。在这里，我们使用不同的组织化学染色研究了土壤干旱如何影响根内 AMF 和植物之间的磷交换活性位点。