一种耐酸型固氮-活化磷酸铁的合成菌群、复合菌剂及其应用

By combining acid-resistant nitrogen-fixing and ferric phosphate-activating bacterial communities, namely Pseudomonas aeruginosa N-13 and Pantotheca cumulus P-23, the problem of nitrogen and phosphorus deficiency in acidic environments was solved, achieving efficient nitrogen fixation and ferric phosphate activation under a wide range of acidic gradients, thus improving nutrient conversion efficiency in acidic environments.

CN122012288BActive Publication Date: 2026-07-17ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG UNIV
Filing Date
2026-04-07
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies struggle to simultaneously achieve efficient nitrogen fixation and activated iron phosphate across a wide acid gradient (pH 3.0-7.0), failing to effectively address the problem of nitrogen and phosphorus deficiency in acidic environments, especially when activity and stability drop sharply below pH 5.5.

Method used

A synthetic microbial community of acid-resistant nitrogen-fixing and activated iron phosphate is used, consisting of Pseudomonas donghuensis N-13 and Pantoea agglomerans P-23, with a preferred ratio of 1:1, to form a compound microbial agent for biological nitrogen fixation and activation of insoluble phosphate under acidic conditions.

Benefits of technology

It significantly enhances available nitrogen content and efficiently activates iron phosphate within a pH range of 3.0-6.0, maintaining high functional activity. It is suitable for the remediation of nitrogen and phosphorus-limited environments in acidic conditions, exhibiting good stability and synergistic effects.

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Abstract

本发明涉及微生物技术领域，特别是涉及一种耐酸型固氮‑活化磷酸铁的合成菌群及其应用，由以下微生物菌株组成：东湖假单胞菌N‑13和成团泛菌P‑23；所述成团泛菌P‑23的保藏编号为CGMCC No.37622，所述东湖假单胞菌N‑13的保藏编号为CGMCC No.37624，适用于酸性寡营养环境中氮磷养分的同步生物强化。
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Citation Information

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