ORIGINAL RESEARCH article
Front. Plant Sci.
Sec. Plant Symbiotic Interactions
Volume 16 - 2025 | doi: 10.3389/fpls.2025.1606962
This article is part of the Research TopicPlant Response Mechanisms Under Abiotic Stress and the Application of Plant-Microbe Interactions in Environmental RemediationView all articles
Bioremediation Potential of Low-brominated Polybrominated Diphenyl by the Phyllospheric Wickerhamomyces anomalus
Provisionally accepted
- Hebei Agricultural University, Baoding, China
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Phyllospheric microorganisms play a significant role in environmental bioremediation.However, there have been limited studies to assess the detoxification mechanisms of phyllospheric Wickerhamomyces anomalus in persistent organic pollutants (POPs), especially polybrominated diphenyl ethers (PBDEs). In this study, we performed RNA-seq to identify the detoxification mechanism of BDE-3 and to identify abundant genes, differentially expressed genes and promising candidates in phyllospheric yeast. The transcriptome analysis revealed that the potential detoxification genes were classified four clusters: cell-wall binding, complexation, vacuolar sequestration and efflux. The aim of this research was to study the functions of over-expressing heterologous yeast genes in plants. We identified possible candidate genes that may maintain high expression during vacuolar sequestration. The WICANDRAFT_64792 gene is a member of the ABC transporter family. The overexpressing WICANDRAFT_64792 (OW) tobacco seedings exhibited higher photosynthetic rates and plant growth in alleviating 4-monobrominated diphenyl ether (BDE-3) stress than the wild-type (WT). Vacuoles and cytoplasm are the primary transportation and distribution storages for BDE-3. The deposition of BDE-3 in leaf cytoplasm and vacuoles prevented it from reentering the surrounding medium. The findings have substantial implications for using phyllosphere microbiome to improve plant stress tolerance.
Keywords: PBDEs, phyllosphere microbiota, ABC transporter, Vacuolar sequestration, bioremediation
Received: 07 Apr 2025; Accepted: 16 Jun 2025.
Copyright: © 2025 Cai, Xing, Yuan, Song, Wang and Du. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Man Cai, Hebei Agricultural University, Baoding, China
Kejiu Du, Hebei Agricultural University, Baoding, China
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