Volume 46, Issue 9 e16131
ORIGINAL ARTICLE

A novel preparation for siderophore-assisted copper and zinc enrichment in yeast

Xiao-ying Fan

Xiao-ying Fan

School of Life Science and Engineering, Key Laboratory of Herbal-Tebitan Drug Screening and Deep Processing of Gansu Province, Lanzhou University of Technology, Lanzhou, China

Search for more papers by this author
Zi-yu Liu

Zi-yu Liu

School of Life Science and Engineering, Key Laboratory of Herbal-Tebitan Drug Screening and Deep Processing of Gansu Province, Lanzhou University of Technology, Lanzhou, China

Search for more papers by this author
Zhi-peng Jia

Zhi-peng Jia

School of Life Science and Engineering, Key Laboratory of Herbal-Tebitan Drug Screening and Deep Processing of Gansu Province, Lanzhou University of Technology, Lanzhou, China

Search for more papers by this author
Ya-ru Wei

Ya-ru Wei

School of Life Science and Engineering, Key Laboratory of Herbal-Tebitan Drug Screening and Deep Processing of Gansu Province, Lanzhou University of Technology, Lanzhou, China

Search for more papers by this author
Dong-dong Xie

Dong-dong Xie

School of Life Science and Engineering, Key Laboratory of Herbal-Tebitan Drug Screening and Deep Processing of Gansu Province, Lanzhou University of Technology, Lanzhou, China

Search for more papers by this author
Ji Zhang

Ji Zhang

College of Life Sciences, Northwest Normal University, Lanzhou, China

Search for more papers by this author
Bei Wang

Bei Wang

School of Life Science and Engineering, Key Laboratory of Herbal-Tebitan Drug Screening and Deep Processing of Gansu Province, Lanzhou University of Technology, Lanzhou, China

Search for more papers by this author
Xin-guo Zhang

Corresponding Author

Xin-guo Zhang

School of Life Science and Engineering, Key Laboratory of Herbal-Tebitan Drug Screening and Deep Processing of Gansu Province, Lanzhou University of Technology, Lanzhou, China

Correspondence

Xin-guo Zhang, School of Life Science and Engineering, Lanzhou University of Technology, No.287 Langongping Road, Qilihe District, Lanzhou 730050, Gansu Province, China.

Email: [email protected]

Bei Wang, School of Life Science and Engineering, Lanzhou University of Technology, No. 287, Langongping Road, Qilihe District, Lanzhou 730050, Gansu Province, China.

Email: [email protected]

Ji Zhang, College of Life Science, Northwest Normal University, No. 967, Anning East Road, Anning District, Lanzhou 730070, Gansu Province, China.

Email: [email protected]

Search for more papers by this author
First published: 01 November 2021
Citations: 2

Xiao-ying Fan and Zi-yu Liu contributed equally to this work.

Abstract

Copper and zinc are essential trace elements for several biological activities and play an important role in living organisms. In this study, the role of siderophores obtained from 16 microorganisms isolated from an iron-rich environment was evaluated in the transport of zinc and copper in yeast. In addition, siderophores showing relevant transport activity were used in the preparation of metal-enriched yeast. Siderophores TZT-SH5I and TZT-ZTH2X significantly improved tolerance of Saccharomyces cerevisiae during growth under high concentrations of zinc/copper. Strains producing siderophores TZT-SH5I and TZT-ZTH2X were identified as Aspergillus sp and Penicillium sp, respectively. The orthogonal method was used to determine optimized conditions for siderophore-assisted copper and zinc enrichment of S. cerevisiae. The final intracellular content of organic Cu and Zn in S. cerevisiae grown in a siderophore-containing medium was 60.76 and 44.22 mg/g. This study provides a convenient and feasible new strategy for the preparation of supplements rich in organic trace elements.

Novelty impact statement

Bioaccumulation of essential trace elements (TEs) by microorganisms is one of the most important ways to TEs from inorganic into organic forms which can be more efficiently absorbed by humans. In the current study, a novel method for preparing copper and zinc-enriched yeast using siderophores from high iron environment microorganisms has been optimized and established. Significantly higher intracellular content of organic Cu and Zn in Saccharomyces cerevisiae grown in a siderophore-containing medium was obtained, which would provide a new idea and platform for the preparation of organic trace elements.

CONFLICT OF INTEREST

The authors have declared no conflicts of interest for this article.

DATA AVAILABILITY STATEMENT

Data available in article Supporting Information.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.