Seed-borne diseases reduce not only the seed germination and seedling growth but also seed quality, resulting in the significant yield loss in crop production. Plant seed harbors diverse microbes termed endophytes other than pathogens inside it. However, their roles and application to agricultures were rarely understood and explored to date. Recently, we had isolated from soybean seeds culturable endophytes exhibiting in-vitro antagonistic activities against common bacterial and fungal seed-borne pathogens. In this study, we evaluated effects of seed treatment with endophytes on plant growth and protection against the common seed-borne pathogens: four fungal pathogens (Cercospora sojina, C. kikuchii, Septoria glycines, Diaporthe eres) and two bacterial pathogens (Xanthomonas axonopodis pv. glycines, Pseudomonas syringae pv. tabaci). Our experiments showed that treatment of soybean seeds with seed endophytes clearly offer protection against seed-borne pathogens. We also found that some of the endophytes promote plant growth in addition to the disease suppression. Taken together, our results demonstrate agricultural potential of seed endophytes in crop protection.
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http://dx.doi.org/10.5423/PPJ.OA.06.2023.0091 | DOI Listing |
BMC Plant Biol
December 2024
Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig, 44519, Egypt.
Zea mays L. (Maize) is one of the most crucial world's crops, for their nutritional values, however, the water scarcity and consequent soil salinization are the major challenges that limit the growth and productivity of this plant, particularly in the semi-arid regions in Egypt. Recently, biopriming has been recognized as one of the most efficient natural-ecofriendly approaches to mitigate the abiotic salt stress on plants.
View Article and Find Full Text PDFJ Fungi (Basel)
December 2024
National Key Laboratory for Tropical Crop Breeding, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Sanya 572024, China.
To obtain an effective bacterial biocontrol strain against the fungal pathogen , causing rubber tree red root rot disease, healthy rubber tree tissue from Baisha County, Hainan Province, was selected as the isolation source, and bacterial strains with strong antifungal effects against . were screened. The strain was identified by molecular biology, in vitro root segment tests, pot growth promotion tests, and genome detection.
View Article and Find Full Text PDFFront Plant Sci
December 2024
Department of Plant Biology, Rutgers University, New Brunswick, NJ, United States.
Understanding the early interactions between plants and endophytes will contribute to a more systematic approach to enhancing endophyte-mediated effects on plant growth and environmental stress resistance. This study examined very early growth and ascorbate metabolism after seed treatment of with three different endophytes. The three endophytes used were pb1(Bapb1), (Ml) and SLB4 (SLB4).
View Article and Find Full Text PDFCommun Integr Biol
December 2024
Central Department of Botany, Tribhuvan University, Kirtipur, Kathmandu, Nepal.
We isolated endophytic strains from the healthy roots, stems, and leaves of to investigate their plant growth-promoting activities in vitro. Subsequently, Indole acetic acid (IAA) was quantified and the gene (responsible for IAA synthesis in fungi) was amplified and sequenced. Finally, a germination assay was performed with seeds of and a plant growth assay with protocorms of to test their plant growth-promoting activities.
View Article and Find Full Text PDFPlants (Basel)
November 2024
Bashkir Research Institute of Agriculture, Subdivision of the Ufa Federal Research Center of the Russian Academy of Sciences, R. Zorge Str. 19, 450059 Ufa, Russia.
Plant growth-promoting endophytic bacteria (PGPEB), producing auxins, are offered for a promising eco-friendly crop production. Precise bacterial strain selection is essential to ensure consistent and effective plant growth and resilience. Creating a model for the optimal dose-dependent interactions between PGPEB and hosts is necessary for understanding the mechanisms of high-precision selection of the inoculant composition to enhance bacterial preparations' efficacy.
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