Plant roots are surrounded by a vibrant and ever-changing microbiome that plays an important role in the plant’s health and growth. It contributes significantly to diverse functions such as nutrient cycling, mobilization, and mineralization, production of phytohormones, antimicrobials, enzymes, and augmentation of plant defense mechanisms against pathogens. In contrast, plants have an immense knowledge of what their microbiome can offer, therefore they manipulate these interactions to their benefit through a process called host selection by recruiting certain species while enhancing their performance under both internal and external stressors. Recent advances in plant breeding by using techniques such as gene editing, trait identification or genome characterization have enabled the production of improved crops that maximize the benefits of plant-microbe relationships. These advances have resulted in genetically modified crops with better crop productivity and increased resistance toward diseases. Different genotypes exhibit variations in root development patterns, rhizodeposition rates, immune responses, chemical signaling mechanisms, and nutrient uptake strategies. Because of these differences in traits among different plants, there is more exclusive and customized rhizomicrobiome arrangement due to this selective pressure that influences colonizing microorganisms largely. To get a lasting influence regarding microbial input and also for maintaining a durable specific microbiota found on these organisms, it is on this basis that plants employ different strategies for microbial recruitment at the root surface.

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Disentangling the Contribution of Plant Genetics in Rhizomicrobiome Recruitment for Climate Resilient Agroecosystems

  • Izzah Shahid,
  • Samina Mehnaz

摘要

Plant roots are surrounded by a vibrant and ever-changing microbiome that plays an important role in the plant’s health and growth. It contributes significantly to diverse functions such as nutrient cycling, mobilization, and mineralization, production of phytohormones, antimicrobials, enzymes, and augmentation of plant defense mechanisms against pathogens. In contrast, plants have an immense knowledge of what their microbiome can offer, therefore they manipulate these interactions to their benefit through a process called host selection by recruiting certain species while enhancing their performance under both internal and external stressors. Recent advances in plant breeding by using techniques such as gene editing, trait identification or genome characterization have enabled the production of improved crops that maximize the benefits of plant-microbe relationships. These advances have resulted in genetically modified crops with better crop productivity and increased resistance toward diseases. Different genotypes exhibit variations in root development patterns, rhizodeposition rates, immune responses, chemical signaling mechanisms, and nutrient uptake strategies. Because of these differences in traits among different plants, there is more exclusive and customized rhizomicrobiome arrangement due to this selective pressure that influences colonizing microorganisms largely. To get a lasting influence regarding microbial input and also for maintaining a durable specific microbiota found on these organisms, it is on this basis that plants employ different strategies for microbial recruitment at the root surface.