Spinach Seed Microbiome Characteristics Linked to Suppressiveness Against Globisporangium ultimum Damping-Off.

Recently we demonstrated that the seed microbiome of certain spinach (Spinacia oleracea) seed lots can confer disease suppression against Globisporangium ultimum damping-off (previously known as Pythium ultimum). We hypothesised that differences in the microbial community composition of spinach seed lots correlate with the levels of damping-off suppressiveness of each seed lot. Here, we show that a large proportion of variance in seed-associated bacterial (16S) and fungal (ITS1) amplicon sequences was explained by seed lot identity, while 9.

Broad-scale phenotyping in Arabidopsis reveals varied involvement of RNA interference across diverse plant-microbe interactions.

RNA interference (RNAi) is a crucial mechanism in immunity against infectious microbes through the action of DICER-LIKE (DCL) and ARGONAUTE (AGO) proteins. In the case of the taxonomically diverse fungal pathogen and the oomycete , plant DCL and AGO proteins have proven roles as negative regulators of immunity, suggesting functional specialization of these proteins. To address this aspect in a broader taxonomic context, we characterized the colonization pattern of an informative set of and loss-of-function mutants in upon infection with a panel of pathogenic microbes with different lifestyles, and a fungal mutualist.

Symptoms Reported by Young Adults With Asthma During Wildfire Smoke Season.

Purpose: The purpose of this article is to evaluate the relationship between exposure to poor air quality (AQ) and self-reported symptoms among young adults with asthma during wildfire smoke season.

Methods: Sixty seven young adults (aged 18-26 years) completed the Asthma Control Test and reported asthma symptoms at three time points (baseline, 4 weeks, and 8 weeks) during wildfire season as part of a clinical trial. Bivariate correlations between Asthma Control Test and AQ measures were examined followed by predictive linear regression.

Association of social vulnerability factors with power outage burden in Washington state: 2018-2021.

Major power outages have risen over the last two decades, largely due to more extreme weather conditions. However, there is a lack of knowledge on the distribution of power outages and its relationship to social vulnerability and co-occurring hazards. We examined the associations between localized outages and social vulnerability factors (demographic characteristics), controlling for environmental factors (weather), in Washington State between 2018-2021.