Seed Priming with Rhizospheric Bacillus subtilis: A Smart Strategy for Reducing Fumonisin Contamination in Pre-Harvest Maize-Reference-Cited by-同舟云学术

Seed Priming with Rhizospheric Bacillus subtilis: A Smart Strategy for Reducing Fumonisin Contamination in Pre-Harvest Maize

Published:2024-07-31 Issue:8 Volume:16 Page:337
ISSN:2072-6651
Container-title:Toxins
language:en
Short-container-title:Toxins

Author:

Jannat Muhtarima¹,Auyon Shah Tasdika²,Tushar Abu Sina Md.¹^ORCID,Tonny Sadia Haque¹,Hasan Md. Hasibul¹,Shahi Mangal¹^ORCID,Singha Uday Rana³,Sultana Ayesha³,Akter Sabera³,Islam Md. Rashidul¹^ORCID

Affiliation:

1. Plant Bacteriology & Biotechnology Laboratory, Department of Plant Pathology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

2. Department of Environmental Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

3. Department of Agricultural Extension, Khamarbari, Dhaka 1215, Bangladesh

Abstract

Maize, one of the most important cereal crops in Bangladesh, is severely contaminated by fumonisin, a carcinogenic secondary metabolite produced by Fusarium including Fusarium proliferatum. Biocontrol with Bacillus strains is an effective approach to controlling this F. proliferatum as Bacillus has proven antagonistic properties against this fungus. Therefore, the present study aimed to determine how native Bacillus strains can reduce fumonisin in maize cultivated in Bangladesh, where BDISO76MR (Bacillus subtilis) strains showed the highest efficacy both in vitro in detached cob and in planta under field conditions. The BDISO76MR strain could reduce the fumonisin concentration in detached cob at 98.52% over untreated control, by inhibiting the conidia germination and spore formation of F. proliferatum at 61.56% and 77.01%, respectively in vitro. On the other hand, seed treatment with formulated BDISO76MR showed higher efficacy with a reduction of 97.27% fumonisin contamination compared to the in planta cob inoculation (95.45%) over untreated control. This implies that Bacillus-based formulation might be a potential approach in mitigating fumonisin contamination in maize to ensure safe food and feed.

Publisher

MDPI AG

Link

https://www.mdpi.com/2072-6651/16/8/337/pdf

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