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Bacillus cereus and application thereof in relieving plant salt stress

A technology of Bacillus cereus and plant salt, applied in the field of microorganisms, can solve the problem of less PGPR

Active Publication Date: 2021-09-10
YANCHENG TEACHERS UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PGPR excavated from natural halophytes, especially from the rhizosphere of halophytes in heavy saline-alkaline coastal beaches is still relatively small.
On the other hand, there are not many cases of actually applying PGPR to actual production

Method used

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  • Bacillus cereus and application thereof in relieving plant salt stress
  • Bacillus cereus and application thereof in relieving plant salt stress
  • Bacillus cereus and application thereof in relieving plant salt stress

Examples

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Embodiment Construction

[0036] The present invention is further described below by examples, but the present invention is not limited by these examples. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

[0037] The present invention provides a Bacillus cereus named SSR-7, which is preserved in the China Center for Type Culture Collection with the preservation number CCTCCM2021459 and the preservation date is April 26, 2021.

[0038] The Bacillus cereus can be used to relieve plant salt stress.

[0039] The Bacillus cereus can be further prepared into a microbial agent for relieving plant salt stress according to methods acceptable in this field.

[0040] The isolation and screening method and performance of the Bacillus cereus will be described below.

[0041]1. Materials and methods

[0042] 1.1 Isolation and screening of strains

[0043] Suaeda salsa w...

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PUM

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Abstract

The invention belongs to the technical field of microorganisms, and particularly discloses bacillus cereus and application thereof in relieving plant salt stress. According to the invention, a growth promoting rhizobacteria is screened from rhizosphere soil of a halophyte suaeda salsa on a coastal mud flat; the strain is identified as bacillus cereus through physiological and biochemical characteristics and 16SrDNA sequence analysis; the strain is named as SSR-7; and the strain has growth promoting characteristics of producing IAA and siderophore at the same time. Culture medium components and fermentation conditions of the SSR-7 are optimized; and the strain is inoculated to rhizosphere of potted tomatoes, so that the growth state of the tomatoes can be remarkably improved under salt stress.

Description

technical field [0001] The invention belongs to the technical field of microorganisms, and specifically discloses a bacillus cereus and its application in alleviating plant salt stress. Background technique [0002] Saline-alkali land refers to the soil that contains a relatively high concentration of soluble salts and directly inhibits or harms plant growth. Soil salinization is a severe problem to be solved urgently in the process of modern agricultural development. [0003] The causes of saline-alkali land are complex, and it is generally believed that there are two sources: normal soil salinization and naturally formed saline-alkali land. Soil salinization refers to the process in which soluble salt in the bottom soil or groundwater rises to the surface with capillary water. After the water evaporates, the salt accumulates in the surface soil. It is mainly due to climate change, water level and water quality changes, topography and landform changes. and other reasons. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/20A01N63/22A01P21/00C09K17/14C12R1/085C09K101/00
CPCC12N1/20A01N63/22C09K17/14C09K2101/00
Inventor 刘方方张言周黄丽杰黄进婵胡化广康贻军姚利孙淼
Owner YANCHENG TEACHERS UNIV
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