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OPENOpen Access licenseDifferential Virulence Contributions of the Efflux Transporter MexAB-OprM in Pseudomonas syringae Infecting a Variety of Host Plants
AbstractAbstract
Efflux transporters such as MexAB-OprM contribute to bacterial resistance to diverse antimicrobial compounds. Here, we show that MexB contributes to epiphytic and late-stage apoplastic growth of Pseudomonas syringae strain B728a, as well as lesion ...- OPENOpen Access license
Divergence of Phyllosphere Microbial Communities Between Females and Males of the Dioecious Populus cathayana
AbstractAbstract
Females and males of dioecious plants have evolved sex-specific characteristics in terms of their morphological and physiological properties. However, the differentiation of phyllosphere microbiota in dioecious plants remains largely unexplored. Here, the ... - OPENOpen Access license
Effect of Leaf Surface Waxes on Leaf Colonization by Pantoea agglomerans and Clavibacter michiganensis
AbstractAbstract
To evaluate the influence of leaf cuticular waxes on bacterial colonization of leaves, bacterial colonization patterns were examined on four glossy maize (Zea mays L.) mutants that were altered in their cuticular wax biosynthesis. Mutant gl3 was ... - OPENOpen Access license
Topography-Driven Shape, Spread, and Retention of Leaf Surface Water Impacts Microbial Dispersion and Activity in the Phyllosphere
AbstractAbstract
To study the impact of lateral variation in surface topography on the microbial colonization of plant leaves, we used a two-step casting process to generate topomimetic “replicasts” in polydimethylsiloxane which faithfully resembled leaf surface ... - OPENOpen Access license
Sorghum Root Flavonoid Chemistry, Cultivar, and Frost Stress Effects on Rhizosphere Bacteria and Fungi
AbstractAbstract
Biotic stresses, including fungal infections, result in increased production of flavonoid compounds, including 3-deoxyanthocyanidins (3-DAs), in the leaf tissues of Sorghum bicolor. Our objectives were to determine whether sorghum genotypic variation ... - OPENOpen Access license
The Effect of Incubation Temperature on the Species Composition of Phytophthora, Phytopythium, and Pythium Communities Associated with Soybean
AbstractAbstract
Multiple species of Phytophthora, Phytopythium, and Pythium cause detrimental effects to soybean and more than one species have often been recovered from symptomatic soybean seedlings or roots, suggesting that these occur as species complexes. Our ... - OPENOpen Access license
Soil Microbial Diversity Impacts Plant Microbiota More than Herbivory
AbstractAbstract
Interactions between plants and microbiomes play a key role in ecosystem functioning and are of broad interest due to their influence on nutrient cycling and plant protection. However, we do not yet have a complete understanding of how plant microbiomes ... - OPENOpen Access license
Forest and Plantation Soil Microbiomes Differ in Their Capacity to Suppress Feedback Between Geosmithia morbida and Rhizosphere Pathogens of Juglans nigra Seedlings
AbstractAbstract
Thousand cankers disease (TCD) is hypothesized to have a greater impact on eastern black walnut (Juglans nigra) in urban forests and plantations compared with natural forest stands. Along with other factors such as resource availability, the phytobiome ... - OPENOpen Access license
Metagenomic Next-Generation Sequencing (mNGS) Data Reveal the Phyllosphere Microbiome of Wheat Plants Infected by the Fungal Pathogen Zymoseptoria tritici
AbstractAbstract
The fungal pathogen Zymoseptoria tritici is the causal agent of Septoria tritici blotch (STB), a major wheat disease in Western Europe. Microorganisms inhabiting wheat leaves might act as beneficial, biocontrol, or facilitating agents that could limit or ... - OPENOpen Access license
Deciphering the Rhizosphere and Geocaulosphere Microbiomes of Potato Following Inoculation with the Biocontrol Agent Pseudomonas fluorescens Strain LBUM223
AbstractAbstract
The phenazine-1-carboxylic acid (PCA)-producing Pseudomonas fluorescens strain LBUM223 shows biocontrol potential against Streptomyces scabies, which causes common scab of potato. To better characterize the impact of inoculating this specific biocontrol ... - OPENOpen Access license
Fungicide-Mediated Shifts in the Foliar Fungal Community of an Invasive Grass
AbstractAbstract
Invasive plants, which cause substantial economic and ecological impacts, acquire both pathogens and beneficial microbes in their introduced ranges. Communities of fungal endophytes are known to mediate impacts of pathogens on plant fitness but few ... - OPENOpen Access license
Ecotype-Dependent Response of Bacterial Communities Associated with Arabidopsis to Cold Acclimation
AbstractAbstract
Low temperature is a primary factor limiting geographical distribution of plants and crop yield in large areas of the world. Plant-associated microbial communities have rarely been acknowledged as possible determinants of cold acclimation, the process ... - OPENOpen Access license
Dominance of Ciliophora and Chlorophyta Among Phyllosphere Protists of Solanaceous Plants
AbstractAbstract
Phyllosphere microbiota play an important role in shaping plant health and function but most research has focused only on bacterial and fungal communities. As a result, little is known about the composition of diverse microeukaryotes in the phyllosphere, ... - OPENOpen Access license
Drought Tolerance Traits in Neotropical Trees Correlate with the Composition of Phyllosphere Fungal Communities
AbstractAbstract
Plant-associated microorganisms have been shown to aid plants in coping with drought. However, the underlying mechanisms are poorly understood and there is uncertainty regarding which microbial taxa and functions are mostly involved. We explored these ... - OPENOpen Access license
Antimycotal Activity of Collimonas Isolates and Synergy-Based Biological Control of Fusarium Wilt of Tomato
AbstractAbstract
In a continued effort to discover microorganisms with plant-protective properties, we characterized a collection of bacterial isolates from multiple geographic origins and belonging to the genus Collimonas, for their ability to inhibit in vitro the growth ... - OPENOpen Access license
Validation of a PNA Clamping Method for Reducing Host DNA Amplification and Increasing Eukaryotic Diversity in Rhizosphere Microbiome Studies
AbstractAbstract
Protists and microscopic animals are important but poorly understood determinants of plant health. Plant-associated eukaryotes could be surveyed by high-throughput sequencing of 18S ribosomal RNA (rRNA) genes but the abundance of plant DNA in rhizosphere ... - OPENOpen Access license
Passaging Phyllosphere Microbial Communities Develop Suppression Towards Bacterial Speck Disease in Tomato
AbstractAbstract
Microbial community-based disease management approaches have the potential to substitute or combine with currently employed strategies. Suppressive soils are great examples of microbial communities that suppress soilborne plant disease after severe ... - OPENOpen Access license
Phyllosphere 2022: 11th International Symposium on Leaf Surface Microbiology
AbstractAbstract
This Meeting Review article offers a synthesis of the science presented and discussed at the recently held 11th International Symposium on Leaf Surface Microbiology, also known as Phyllosphere 2022, at the University of California–Davis (UC Davis), 17 to ... - OPENOpen Access license
Evaluating the Microbiome of Hemp
AbstractAbstract
Plant microbiomes contribute to plant fitness and crop yields through a variety of mechanisms. Determining variability in microbiome composition among individuals of a species, and identifying core microbiome membership, are essential first steps for ... - OPENOpen Access license
N-Cycling Microbiome Recruitment Differences Between Modern and Wild Zea mays
AbstractAbstract
Rewilding modern agricultural cultivars by reintroducing beneficial ancestral traits is a proposed approach to improve sustainability of modern agricultural systems. In this study, we compared recruitment of the rhizosphere microbiome among modern inbred ...