Bacterium for producing siderophore and application thereof

By applying the strain Leifsonia sp. 22262, the problem of insufficient iron absorption in tobacco plants was solved, resulting in improved tobacco growth and yield, reduced production costs, and the sustainable development of the tobacco industry.

CN122104525APending Publication Date: 2026-05-29ZHENGZHOU TOBACCO RES INST OF CNTC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHENGZHOU TOBACCO RES INST OF CNTC
Filing Date
2026-03-31
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Iron deficiency in tobacco plants causes yellowing of leaves, affecting photosynthesis and growth. Existing methods for promoting iron absorption through microorganisms are inefficient and cannot meet the needs of tobacco cultivation.

Method used

A strain of Leifsonia sp. 22262, named CGMCC No. 37787, is provided. It has a high iron-carrier production capacity. By inoculating it into the tobacco rhizosphere, it promotes iron absorption and utilization and improves tobacco growth performance.

Benefits of technology

It significantly increases tobacco biomass, leaf area, and plant height, improves nitrogen and potassium content, reduces production costs, increases tobacco leaf yield, and achieves sustainable development of tobacco cultivation.

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Abstract

The application discloses a high-efficiency siderophore-producing bacterium and application thereof, characterized in that the strain is named 22262, the classification name of the strain is Leifsonia sp., the strain is preserved in the China General Microbiological Culture Collection Center, and the preservation number is CGMCC No. 37787.The strain 22262 has a strong siderophore-producing capacity, can significantly promote tobacco biomass, increase leaf area, and increase plant height, and achieves the purpose of significantly increasing yield; application and popularization of the strain in tobacco planting can effectively reduce production cost, increase tobacco yield, and realize sustainable development of tobacco planting.
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