Rhizophagus intraradices symbiosis with Amaranthus hypochondriacus improves rhizosphere soil pH and nutrient status in sodic soil

IF 4.3 3区材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC ACS Applied Electronic Materials Pub Date : 2024-10-16 DOI:10.1016/j.rhisph.2024.100973

Honghe Li , Feng Shi , Siyu Zhu , Xue He , Yiwen Ding , Tianle Xu , Dandan Qi , Wei Chang , Changlei Dai , Fuqiang Song

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Abstract

As a forage crop belonging to the Amaranthaceae family (often considered as non-mycorrhizal plants), Amaranthus hypochondriacus can grow in sodic soil. It is worth exploring whether arbuscular mycorrhizal fungi (AMF) can successfully form a symbiotic relationship with A. hypochondriacus to alleviate the environmental stress it experiences and improve rhizosphere soil quality. This study aims to evaluate the potential for AMF to form a symbiotic relationship with salt-tolerant Amaranthaceae plants. By measuring the colonization rate, biomass, and rhizosphere soil chemical properties of the plants, we assessed the response of A. hypochondriacus to AMF under different concentrations of saline-alkali stress. The results showed that Rhizophagus intraradices could form a good symbiotic relationship with A. hypochondriacus and reduce the rhizosphere soil pH and increase the effective nutrient content.

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根瘤菌（Rhizophagus intraradices）与苋菜（Amaranthus hypochondriacus）共生可改善土壤酸碱度和土壤养分状况

作为一种属于苋科（通常被认为是无菌根植物）的饲料作物，Amaranthus hypochondriacus 可以在含钠土壤中生长。有必要探讨丛枝菌根真菌（AMF）能否成功地与 A. hypochondriacus 形成共生关系，以减轻其所承受的环境压力并改善根瘤层土壤质量。本研究旨在评估 AMF 与耐盐苋科植物形成共生关系的潜力。通过测量植物的定殖率、生物量和根圈土壤化学性质，我们评估了 A. hypochondriacus 在不同浓度的盐碱胁迫下对 AMF 的反应。结果表明，Rhizophagus intraradices 能与 A. hypochondriacus 形成良好的共生关系，并能降低根圈土壤 pH 值和增加有效养分含量。

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