SEP 12, 2019 9:00 AM PDT

Investigating the common bean microbiome

Speaker

Abstract

Plants recruit soil microbes that provide nutrients, promote growth and protect against pathogens. However, the full potential of microbial communities for supporting plant health and agriculture is unrealized, in part because rhizosphere members key for plant health are difficult to prioritize. Microbes that ubiquitously associate with a plant species across large spatial scales and varied soil conditions provide a practical starting point for discovering beneficial members. Here, we quantified the structures of bacterial/archaeal and fungal communities in the common bean rhizosphere (Phaseolus vulgaris), and assessed its core membership across two evolutionarily-distinct genotypes, grown in field conditions across five major growing regions in the United States. We discovered a conserved core microbiome of 271 bacterial, archaeal and fungal taxa that were consistently associated with the common bean, despite different soil types, management, climates and genotypes. Neutral models of abundance-occupancy relationships and co-occurrence networks suggest that these core taxa are in intimate relationships with the plant, rather than important members of the local soil microbiome. We expanded our study to leverage rhizosphere samples inclusive of eight additional common bean genotypes that were grown in Colombian soils. Surprisingly, there were 48 persistent bacterial taxa that were detected in all samples, inclusive of U.S. and Colombian-grown beans. Many of the core taxa were yet-uncultured and affiliated with Proteobacteria; these taxa are prime targets for functional investigation in support of sustainable common bean agriculture. More generally, our approach provides insights into microbial taxa that can be prioritized towards translational studies of plant-microbiome. management.

Learning objectives:

1. Rhizosphere is one of the most diverse ecosystems harboring a great number of plant beneficial microbes and functions.
2. Plants consistently recruit a number of ecological important microbial taxa which represent the core microbiome.
Members of the core microbiome have potential to be implemented in plant breeding strategies.


Show Resources
You May Also Like
JUN 28, 2022 6:45 AM PDT
JUN 28, 2022 6:45 AM PDT
Date: June 28, 2022 Time: 3:00pm (BST), 4:00pm (CET), 9:00am (CST), 7am (PST) Light-sheet microscopy is an extremely versatile imaging technique with a vast range of implementations that are...
MAY 17, 2022 9:00 AM PDT
MAY 17, 2022 9:00 AM PDT
Date: May 17, 2022 Time: 9:00am (PDT), 12:00pm (EDT), 8:00pm (CEST) Gene therapeutics have great potential to treat many severe diseases in an unprecedented, targeted manner. The biopharmace...
MAR 23, 2022 11:00 AM PDT
MAR 23, 2022 11:00 AM PDT
Date: March 23, 2021 Time: 11:00am (PDT), 2:00pm (EDT), 8:00pm (CEDT) In this presentation, Dr. Middleton will review the development and deployment of large-scale saliva-based COVID-19 test...
MAR 30, 2022 6:00 AM PDT
MAR 30, 2022 6:00 AM PDT
Targeted NGS has been instrumental in helping the healthcare community deliver on the promise of precision medicine. The Ion Torrent Genexus Integrated Sequencer has enabled targeted genomic...
DEC 09, 2021 11:00 AM PST
C.E. CREDITS
DEC 09, 2021 11:00 AM PST
Date: December 09, 2021 Time: 11:00am (PDT), 2:00pm (EDT) The burden of antimicrobial resistance (AMR) has been acknowledged worldwide by leading health institutes. Besides the need for new...
JUN 29, 2022 8:00 AM PDT
JUN 29, 2022 8:00 AM PDT
Date: June 29, 2022 Time: 8:00am (PST), 11:00am (EST), 5:00pm (CEST) As of May 2022, there have been more than 500 million confirmed cases of COVID-19, including numerous variants. Additiona...
SEP 12, 2019 9:00 AM PDT

Investigating the common bean microbiome



Show Resources
Loading Comments...
Show Resources