Prof Braj Singh

@prof-braj-singh.bsky.social

Prof @University Of Western Australia; President-Global Sustainable Agriculture &Environment Initiative; Chair of UN-FAO-ITPS; FAO-NETSOB; Fellow of Australian Academy of Science; Research soil, microbiology, biodiversity & agriculture; Posts are personal

Weekend read! Plant microbiome & drought resistance Drought stress promotes specific microbial & metabolite enrichments in the wheat rhizosphere. These changes enhance plant drought resistance via plant-microbe interactions & have lasting legacy effects www.cell.com/cell-host-mi...

Drought-induced plant microbiome and metabolic enrichments improve drought resistance

Li et al. show that drought stress promotes specific microbial and metabolite enrichments in the wheat rhizosphere. These changes enhance plant drought resistance via plant-microbes interactions and h...

cell.com

Great paper from @prof-braj-singh.bsky.social and coll. to illustrate the importance of considering microbiomes in One Health -> Soil microbial diversity associates with lower prevalence of human bacterial pathogens across global soils

Soil microbial diversity associates with lower prevalence of human bacterial pathogens across global soils

Soil-inhabiting pathogens threaten human health, but their biogeography and associations with soil biodiversity remain poorly understood. Here, we present global patterns of dominant human bacterial pathogens by integrating 1,602 soil metagenomes from 59 countries across continents. We show that dominant human pathogens are more prevalent (i.e., relative abundance) in wet (tropical and temperate) ecosystems and are particularly abundant in cropland soils. We find a global negative association between soil microbiome diversity and pathogen prevalence. We further reveal a significant and positive correlation between the abundance of dominant human pathogens and both disease virulence and global patterns of mortality associated with infectious diseases. Many dominant pathogens are likely to increase their proportion under global change scenarios. Our work provides a global atlas of dominant soil-inhabiting human pathogens and reveals their biogeography and ecology. These findings can guide the development of effective surveillance and risk management strategies to reduce outbreaks and pandemics.

sco.lt

Great review from @prof-braj-singh.bsky.social -> Impacts of climate extremes on plant pathogens, microbiomes and plant health | Nature Reviews Microbiology

Impacts of climate extremes on plant pathogens, microbiomes and plant health | Nature Reviews Microbiology

Plant diseases pose a great risk to global food security, and recent research indicates that pathogen pressures on plant productivity will substantially increase under ongoing climate change (that is, increasing CO2 levels and global warming). However, our mechanistic and predictive knowledge of the impacts of climate extremes, such as heatwaves and prolonged droughts, and their interaction with other climatic factors, on plant pathogens, hosts and microbiomes, remains largely unknown. This is an important knowledge gap that limits our ability to develop effective strategies to mitigate the socioeconomic impacts of climate change-induced plant disease outbreaks. This Review examines the impacts of key climate extremes on soil-borne pathogens, plant microbiomes and host physiology that ultimately determine disease outcomes. We explore evidence that suggests that the responses of pathogen–host–microbiome interactions to climate extremes may differ in many ways from those to long-term climate change. Climate extremes may increase the virulence and distribution of many pathogens, suppress certain plant immune responses, and weaken the core functions of host microbiomes within the disease triangle, thereby facilitating disease outbreaks. We propose an integrated pathway for harnessing microbiomes to address the critical challenges posed by climate extremes. These insights offer new approaches to mitigate disease risks by harnessing microbiomes and metabolites under climate extremes, with the potential to support climate-resilient and sustainable agricultural and natural ecosystems.

sco.lt