Endophytic bacteria: a possible path towards a sustainable agriculture

Xavier, Marcelino Lourenço; Bosch, Amanda Ribeiro; Karp, Susan Grace; Soccol, Carlos Ricardo

doi:10.4322/biori.21050203

Cited by 7 publications

(2 citation statements)

References 93 publications

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“…In addition, seed-borne microbial endophytes are particularly interesting as they enhance seed germination and plant growth promotion, so they are important in improving crop productivity and resilience [18] [19] [20]. Thus, they can be used as bioproducts in phytoremediation and sustainable agriculture [21]. Also, they might evolve mechanisms that protect the germinating seeds and seedlings from foraging, drought, and fungal seed-borne and soil pathogens [7].…”

Section: Introductionmentioning

confidence: 99%

Implications of Domestication in Theobroma Cacao L. Seed-borne Microbial Endophytes Diversity

Toloza-Moreno,

Yockteng,

Zuñiga

et al. 2024

Preprint

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The study of plant-microbe interactions is a rapidly growing research field, with increasing attention to the role of seed-borne microbial endophytes in protecting the plant during its development from abiotic and biotic stresses. Recent evidence suggests that seed microbiota is crucial in establishing the plant microbial community, affecting its composition and structure, and influencing plant physiology and ecology. For Theobroma cacao L., the diversity and composition of vertically transmitted microbes have yet to be addressed in detail. We explored the composition and diversity of seed-borne endophytes in cacao pods of commercial genotypes (ICS95, IMC67), AGROSAVIA genotypes (TCS01, TCS19), and landraces from Tumaco (Colombia) (AC9, ROS1, ROS2), to evaluate microbial vertical transmission and establishment in various tissues during plant development. We observed a higher abundance of Pseudomonas and Pantoea genera in the landraces and AGROSAVIA genotypes, while the commercial genotypes presented a higher number of bacteria species but in low abundance. In addition, all the genotypes and plant tissues showed a high percentage of fungi of the genus Penicillium. These results indicate that domestication in cacao has increased bacterial endophyte diversity but has reduced their abundance. We isolated some of these seed-borne endophytes to evaluate their potential as growth promoters and found that Bacillus, Pantoea, and Pseudomonas strains presented high production of indole acetic acid and ACC deaminase activity. Our results suggest that cacao domestication could lead to the loss of essential bacteria for seedling establishment and development. This study improves our understanding of the relationship and interaction between perennial plants and seed-borne microbiota.

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Section: Introductionmentioning

confidence: 99%

Implications of Domestication in Theobroma Cacao L. Seed-borne Microbial Endophytes Diversity

Toloza-Moreno,

Yockteng,

Zuñiga

et al. 2024

Preprint

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“…For example, they enhance the plant growth by producing hormones that control nutrient uptake and suppress plant diseases by producing antibiotics ( Harman et al, 2021 ). There is increasing demand for the development of the biotechnological applications of seed endophytes to phytoremediation and the sustainable production of crops ( Xavier et al, 2021 ).…”

mentioning

confidence: 99%

Plant Protective and Growth Promoting Effects of Seed Endophytes in Soybean Plants

Kim,

Ahn,

Yang

et al. 2023

Plant Pathol J

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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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The Contribution of Microbial Endophytes Associated with Climate-Smart Brachiaria Grass Species to Sustainable Agriculture and Environment

Misganaw,

Mutai

2024

Springer Geography

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Endophytic bacteria: a possible path towards a sustainable agriculture

Cited by 7 publications

References 93 publications

Implications of Domestication in Theobroma Cacao L. Seed-borne Microbial Endophytes Diversity

Implications of Domestication in Theobroma Cacao L. Seed-borne Microbial Endophytes Diversity

Plant Protective and Growth Promoting Effects of Seed Endophytes in Soybean Plants

The Contribution of Microbial Endophytes Associated with Climate-Smart Brachiaria Grass Species to Sustainable Agriculture and Environment

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