ORIGINAL RESEARCH article
Front. Microbiol.
Sec. Terrestrial Microbiology
Volume 16 - 2025 | doi: 10.3389/fmicb.2025.1544479
This article is part of the Research TopicSoil Microbial Communities to Promote Suppressiveness against Soil-Borne Pathogens and DiseasesView all 11 articles
Cyanobacterium Nostoc species mitigate soybean cyst nematode infection on soybean by shapingshape soybean rhizosphere microbiota against soybean cyst nematode
Provisionally accepted
- 1North Central Agricultural Research Laboratory, Agricultural Research Service (USDA), Brookings, South Dakota, United States
- 2South Dakota State University, Brookings, South Dakota, United States
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Soybean cyst nematode (SCN, Heterodera glycines Ichinohe) is the most devastating and yieldlimiting pathogen that threatens soybean production globally. Sustainable SCN disease management strategies are needed. In this study, a cyanobacterial strain was isolated from SCNinfected soybean soil and identified as Nostoc punctiforme using the cyanobacterial 16S rRNA gene sequence. When susceptible soybean plants were grown in the SCN-inoculated soil, N. punctiforme inoculants significantly reduced the total number of SCN eggs and second-stage juveniles (J2s), compared to the control with SCN inoculation only. Further microbial analysis showed that N. punctiforme inoculants changed the bacterial and fungal communities in the soybean rhizospheres and significantly increased the relative abundance of several bacterial and fungal species with potential nematicidal activities, suggesting altered the changes of soybean rhizosphere microbiota may partially contribute to the activity of N. punctiforme inoculants against SCN. However, N. punctiforme inoculants did not directly induce soybean defense reactions against SCN. Thus, N. punctiforme may be a potential nematicide microbial source against SCN invasion in soybean.
Keywords: Cyanobacteria, Soybean cyst nematode, Nematicidal activity, microbiota, Plant defense system
Received: 12 Dec 2024; Accepted: 15 Apr 2025.
Copyright: © 2025 Yin, Lahr and Zhou. 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: Chuntao Yin, North Central Agricultural Research Laboratory, Agricultural Research Service (USDA), Brookings, South Dakota, United States
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