Results 51 to 60 of about 4,835 (209)

Specialized attachment structure of the fish pathogenic oomycete Saprolegnia parasitica. [PDF]

open access: yesPLoS ONE, 2018
The secondary cysts of the fish pathogen oomycete Saprolegnia parasitica possess bundles of long hooked hairs that are characteristic to this economically important pathogenic species.
Svetlana Rezinciuc   +4 more
doaj   +1 more source

Melanoma and Other Melanistic Lesions in Brown Bullhead Ameiurus nebulosus From Waterbodies in the Northeastern United States and Canada: Identification of Risk Factors

open access: yesJournal of Fish Diseases, Volume 49, Issue 11, November 2026.
ABSTRACT Melanistic lesions, including non‐raised black areas due to proliferations of melanocytes and melanomacrophages in the dermis and epidermis, as well as raised black areas consistent with melanoma, are described in brown bullhead (BBH) Ameiurus nebulosus from three water bodies in the northeastern United States and Quebec, Canada.
Vicki S. Blazer   +9 more
wiley   +1 more source

Morphological Study of the Encystment and Excystment of Vermamoeba vermiformis Revealed Original Traits.

open access: yes, 2015
International audienceFree-living amoebae are ubiquitous protozoa commonly found in water. Among them, Acanthamoeba and Vermamoeba (formerly Hartmannella) are the most represented genera. In case of stress, such as nutrient deprivation or osmotic stress,
Fouque, Emilie   +17 more
core   +1 more source

Effects of Fusaric Acid to Inhibit Encystment and Excystment of Acanthamoeba spp. [PDF]

open access: yesWarasan Witthayasat Lae Theknoloyi Mahawitthayalai Mahasarakham, 2019
This research examined effects of fusaric acid on encystment and excystment of 4 Acanthamoeba isolates including AS and AR isolated from the keratitis patients and S3 and S5 isolated from soil samples.
Narumon Boonman
doaj  

Strombidium rassoulzadegani: A Model Species for Chloroplast Retention in Oligotrich Ciliates

open access: yesFrontiers in Marine Science, 2018
Strombidium rassoulzadegani is a planktonic ciliate that retains chloroplasts from its food and uses them to obtain a nutritional supplement from photosynthesis.
George B. McManus   +5 more
doaj   +1 more source

Evidence for Submarine Landslides at Climate Transitions in a High Arctic Fjord (Grise Fiord, Nunavut)

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 10, October 2026.
Seafloor mapping in a high Arctic fjord (Grise Fiord) revealed many submarine landslides triggered by iceberg groundings, coastal debris flows and delta collapses. The dating of three of them suggests that they occurred at past climate transitions. ABSTRACT Arctic fjords are experiencing rapid environmental change driven by amplified high‐latitude ...
C. Stancu   +11 more
wiley   +1 more source

Studies of Encystment and Germination in Azotobacter Vinelandii [PDF]

open access: yes, 1972
Light and electron microscopy were employed to study the encystment and germination processes in Azotobacter. Data obtained from frozen-etched replicas and chemically fixed cells revealed that as encystment occurs, the cells become rounded, and lose ...
Cagle, Gerald Dean
core  

Total proteins identified in the algU mutant under encystment-induced conditions as compared to the wild-type strain.

open access: yes, 2023
Total proteins identified in the algU mutant under encystment-induced conditions as compared to the wild-type strain.
Iliana C. Martínez-Ortíz (17396779)   +6 more
core   +1 more source

Helicobacter pylori In Free‐Living Amoebae: A Potential Environmental Reservoir for Persistence and Transmission

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 5, October 2026.
Free‐living amoebae may provide an underrecognised environmental niche for Helicobacter pylori, supporting its intracellular persistence, morphological plasticity, and protection from environmental stress. These interactions could facilitate prolonged survival in aquatic and food‐associated environments and contribute to potential waterborne or ...
Otmane Lamrabet   +7 more
wiley   +1 more source

Encystment of Acanthamoeba and Evaluating the Biobus Program

open access: yes, 2010
Acanthamoeba are ubiquitous protists that play an environmental role in regulating microbial diversity; they also occasionally cause infections of the eye (Acanthamoeba keratitis) and brain (granulomatous amoebic encephalitis).
Trevisan, Brandi C
core   +1 more source

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