We propose that symbiotically modified organisms (SMOs) should be taken into account in sustainable agriculture. In this opinion article, we present the results of a meta-analysis of the literature, with a particular focus on the potential of SMOs in forage and turf grass production, to determine the impact of endophytes in grasses on livestock, the grassland ecosystems, and associated environments. SMOs can be incorporated into breeding programs to improve grass yield, resistance to pests and weeds, and forage quality for livestock by decreasing the level of toxic alkaloids. However, the benefits of these selected grass-endophyte symbiota appear to be highly dependent on grass cultivar, fungal strain, and environmental conditions, requiring a comprehensive understanding of the genetic bases and phenotypic plasticity of the traits of the plant-microbe unit in different environments.
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http://dx.doi.org/10.1016/j.tplants.2013.03.003 | DOI Listing |
Physiol Plant
January 2025
School of Agriculture, Food and Wine, The University of Adelaide, Urrbrae, SA, Australia.
The relative performance of rhizobial strains could depend on their resource allocation, environmental conditions, and host genotype. Here, we used a high-throughput shoot phenotyping to investigate the effects of Mesorhizobium strain on the growth dynamics, nodulation and bacteroid traits with four chickpea (Cicer arietinum) varieties grown under different water regimes in an experiment including four nitrogen sources (two Mesorhizobium strains, and two uninoculated controls: nitrogen fertilised and unfertilised) under well-watered and drought conditions. We asked three questions.
View Article and Find Full Text PDFEcol Evol
January 2025
Minderoo Foundation Perth Western Australia Australia.
Coral reefs worldwide are threatened by increasing ocean temperatures because of the sensitivity of the coral-algal symbiosis to thermal stress. Reef-building corals form symbiotic relationships with dinoflagellates (family Symbiodiniaceae), including those species which acquire their initial symbiont complement predominately from their parents. Changes in the composition of symbiont communities, through the mechanisms of symbiont shuffling or switching, can modulate the host's thermal limits.
View Article and Find Full Text PDFSci Rep
December 2024
School of Biotechnology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand.
Effector proteins secreted via the type III secretion system (T3SS) of nitrogen-fixing rhizobia are key determinants of symbiotic compatibility in legumes. Previous report revealed that the T3SS of Bradyrhizobium sp. DOA9 plays negative effects on Arachis hypogaea symbiosis.
View Article and Find Full Text PDFJ Insect Physiol
December 2024
School of Life Sciences, Hubei Key Laboratory of Genetic Regulation and Integrative Biology, Central China Normal University, Wuhan 430079, China. Electronic address:
Wolbachia, as a widely infected intracellular symbiotic bacterium in Arthropoda, is able to manipulate the reproduction of insect hosts for facilitating their own transmission. Cytoplasmic incompatibility (CI) is the most common phenotype that Wolbachia induced in insect hosts where they resulted in the failure of uninfected egg hatch when fertilized with the sperm derived from Wolbachia-infected males, suggesting that the sperm are modified by Wolbachia during spermatogenesis. Although the molecular mechanisms of CI are beginning to be understood, the effects of Wolbachia on the symbiotic relationship and the proper dynamics of spermatogenesis have not yet been fully investigated.
View Article and Find Full Text PDFBiotechnol Biofuels Bioprod
December 2024
Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering, Ministry of Education of China, Tianjin, 300072, People's Republic of China.
Inspired by the natural symbiotic relationships between diverse microbial members, researchers recently focused on modifying microbial chassis to create artificial coculture systems using synthetic biology tools. An increasing number of scientists are now exploring these systems as innovative biosynthetic platforms for biomass conversion. While significant advancements have been achieved, challenges remain in maintaining the stability and productivity of these systems.
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