Results 121 to 130 of about 412,859 (402)

Spore Formation and Toxin Production in Clostridium difficile Biofilms

open access: yesPLoS ONE, 2014
The ability to grow as a biofilm can facilitate survival of bacteria in the environment and promote infection. To better characterize biofilm formation in the pathogen Clostridium difficile, we established a colony biofilm culture method for this ...
E. Semenyuk   +6 more
semanticscholar   +1 more source

Microfluidics‐Based Microcarriers for Live‐Cell Delivery

open access: yesAdvanced Science, EarlyView.
In this review, recent advancements in microfluidics‐based microcarriers for live‐cell delivery are highlighted. The structural designs of microfluidic‐derived cell‐laden microcarriers are systematically categorized, emphasizing innovative approaches in the fabrication of microspheres, microfibers, and microneedles.
Zhonglin Fang   +3 more
wiley   +1 more source

Improving Dispersion of Bacterial Endospores for Enumeration

open access: yesKONA Powder and Particle Journal, 2015
Precise enumeration of spores is crucial for accurate evaluation of spore survival in the presence of inactivating agents or extreme environmental conditions. Bacterial endospores tend to agglomerate, leading to low estimates of spore numbers.
Vijay B. Krishna   +4 more
doaj   +1 more source

Vortex Rings from Sphagnum Moss Capsules [PDF]

open access: yesarXiv, 2010
Long distance wind dispersal requires small spores with low terminal velocities, which can be held aloft by turbulent air currents until they are deposited in suitable habitats for colonization. The inherent difficulty in dispersing spores by wind is that spores easily carried by wind are also rapidly decelerated when moving through still air. Thus the
arxiv  

Rheological dynamics of active Myxococcus xanthus populations during development [PDF]

open access: yesarXiv, 2021
The bacterium Myxoccocus xanthus produces multicellular protective droplets called fruiting bodies when starved. These structures form initially through the active dewetting of cells into surface-bound droplets, where substantial flows of the material are needed as the fruiting bodies grow and become round.
arxiv  

Distribution and transmission of American foulbrood in honey bees [PDF]

open access: yes, 2006
The distribution of Paenibacillus larvae spores, the causative agent of American foulbrood, was studied on three different levels in the honey bee system; the apiary level, the colony level and the individual honey bee level.
Lindström, Anders
core  

An Insect Salivary Sheath Protein Triggers Plant Resistance to Insects and Pathogens as a Conserved HAMP

open access: yesAdvanced Science, EarlyView.
The salivary sheath protein myosin from SBPH is critical for the formation of the salivary sheath and feeding. However, myosin functions as a HAMP and triggered plant BAK1‐mediated PTI responses, which include the activation of calcium signaling pathways, MAPK phosphorylation, ROS bursts, and cell death, thereby triggering JA pathway.
Liangxuan Qi   +12 more
wiley   +1 more source

Deglaciation history and subsequent lake dynamics in the Siljan region, south‐central Sweden, based on new LiDAR evidence and sediment records

open access: yesEarth Surface Processes and Landforms, Volume 47, Issue 15, Page 3515-3545, December 2022., 2022
Glacial geomorphology and postglacial landforms, derived from LiDAR‐based digital terrain models, together with radiocarbon‐dated sediment sequences, form the basis for landscape reconstruction spanning c. 2000 years (10,500–8500 cal. bp). After formation of streamlined terrain and ribbed moraine tracts followed intense glaciofluvial activity at ...
Per Möller   +7 more
wiley   +1 more source

Mushroom spore dispersal by convectively-driven winds [PDF]

open access: yesarXiv, 2015
Thousands of fungal species rely on mushroom spores to spread across landscapes. It has long been thought that spores depend on favorable airflows for dispersal -- that active control of spore dispersal by the parent fungus is limited to an impulse delivered to the spores to carry them clear of the gill surface. Here we show that evaporative cooling of
arxiv  

Spores: Stateless Predictive Onion Routing for E-Squads [PDF]

open access: yesarXiv, 2020
Mass surveillance of the population by state agencies and corporate parties is now a well-known fact. Journalists and whistle-blowers still lack means to circumvent global spying for the sake of their investigations. With Spores, we propose a way for journalists and their sources to plan a posteriori file exchanges when they physically meet.
arxiv  

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