Mutation breeding of Aspergillus niger by atmospheric room temperature plasma to enhance phosphorus solubilization ability.

ABSTRACT:

Background

Phosphorus (P) is abundant in soils, including organic and inorganic forms. Nevertheless, most of P compounds cannot be absorbed and used by plants. Aspergillus niger v. Tiegh is a strain that can efficiently degrade P compounds in soils.

Methods

In this study, A. niger xj strain was mutated using Atmospheric Room Temperature Plasma (ARTP) technology and the strains were screened by Mo-Sb Colorimetry with strong P-solubilizing abilities.

Results

Compared with the A. niger xj strain, setting the treatment time of mutagenesis to 120 s, four positive mutant strains marked as xj 90-32, xj120-12, xj120-31, and xj180-22 had higher P-solubilizing rates by 50.3%, 57.5%, 55.9%, and 61.4%, respectively. Among them, the xj120-12 is a highly effici

SUBMITTER: Peng Q 

PROVIDER: S-EPMC8953557 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature