Results 191 to 200 of about 688,900 (233)

Photochemical effects of Mars‐like UV irradiation on carboxylic acids in carbonaceous chondrites and expectations for abiotic background organics on Mars

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract In the search for life on Mars, understanding the origin of preserved organics is critical. Expected sources include exogenous delivery, endogenous synthesis, and potentially life. Environmental processing by ultraviolet (UV) irradiation can alter these organics, obscuring hallmarks of their origin. To deconvolve these effects, we conducted an
D. K. Buckner   +7 more
wiley   +1 more source

α‐1,3‐Glucan Is Required for Cell Wall Integrity and Full Virulence of Colletotrichum graminicola, but Not for Evasion of PAMP‐Triggered Immunity

open access: yesMolecular Microbiology, EarlyView.
Abbreviated Summary The role of the major fungal cell wall polymer α‐1,3‐glucan in plant infection is poorly understood. Deletion mutants of the maize anthracnose fungus Colletotrichum graminicola lacking all three α‐1,3‐glucan synthase genes differentiated severely distorted biotrophic hyphae in planta, and virulence was strongly reduced.
Iris Gase   +13 more
wiley   +1 more source

Experimental and genomic evidence clarifies the mycorrhizal helper role of a widespread bacterium in Bishop pine forests

open access: yesNew Phytologist, EarlyView.
Hypothetical model of Paraburkholderia–EcMF–Bishop pine interactions. Summary Whether a widespread bacterial strain of Paraburkholderia can enhance the physiological responses of ectomycorrhizal fungi (EcMF) and host Bishop pine seedling growth remains unclear. We developed a ‘top‐down meets bottom‐up’ approach that harmonized data from molecular field
Louis Berrios   +3 more
wiley   +1 more source

Leaf Structure and Hormonal Balance Modulate Host‐Specificity and Pathogenicity of Botrytis cinerea

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Botrytis cinerea, a highly successful necrotrophic fungal plant pathogen, demonstrates a remarkably broad host range, yet the precise factors governing its host specificity and its ability to coexist non‐pathogenically with plants remain unclear. This study systematically assessed host preference in a series of B. cinerea agricultural isolates,
Gautam Anand   +12 more
wiley   +1 more source

The oral microbiota and periodontal health in orthodontic patients

open access: yesPeriodontology 2000, EarlyView.
Abstract The oral microbiota develops within the first 2 years of childhood and becomes distinct from the parents by 4 years‐of‐age. The oral microbiota plays an important role in the overall health/symbiosis of the individual. Deviations from the state of symbiosis leads to dysbiosis and an increased risk of pathogenicity.
Brandon W. Peterson   +4 more
wiley   +1 more source

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