Arcellidae is commonly recorded as one of the most representative families of testate amoebae
in Neotropical ecosystems in terms of richness and abundance of species (Vucetich, 1973; Panarelli, Casanova, Nogueira, Mitsuka, & Henry, 2003; Fulone, Vieira, Velho, & Lima, 2005; Lansac-Toha, Alves, Velho; Robertson, & Joko, 2008; Escobar, Brenner, Whitmore, Kenney, & Curtis, 2008; Oliveira & Hardoim, 2010; Arrieira, Alves, Schwind, & Lansac-Toha, 2015).
The Mnemiopsis amoebae
thus appear move to novel environments with the host.
are protists whose protoplasm is inserted into a test (shell) with an oral aperture through which the pseudopods emerge during locomotion or feeding (Smith et al.
All samples were washed through a coarse sieve (about 750 [micro]m) into a boiling glass and the testate amoebae
and peat debris were let to deposit for several hours.
occur in well-mixed cosmopolitan groups, then cheaters will always be able to thrive by freeloading on their cooperative neighbors.
were fed with live (monoaxenic) and heat killed (axenic) suspensions as stated earlier and incubated.
The study, conducted by evolutionary biologists Joan Strassmann and David Queller of Rice University, has shown that long-studied social amoebae
Dictyostellum discoideum (commonly known as slime molds) increase their odds of survival through a rudimentary form of agriculture.
Cultures of amoebae
were grown to a concentration of 1 X [10.
Evolution skeptics also claim that no one has ever seen the development of a new species, a myth Farmer and Habura tackle by outlining a case in which amoebae
became symbiotically dependent upon infecting bacteria.
To hear Mark Mazzola describe his latest discovery in the weird, wild world of microorganisms, you'd think the amoebae
he's been studying--and the bacteria they stalk in the soil--were lion and wildebeest locked in an epic battle for survival on the plains of the Serengeti in East Africa.
leprae could be taken up by free-living pathogenic amoebae
in the soil or water and survive, sheltered intracellularly in these protozoa serving, essentially as 'feral macrophages'.
Gast and Amaral-Zettler started looking for pathogenic Legionella because of a quirk: The bacteria can invade amoebae
and in doing so become more virulent.
Primers to conserved SSU rRNA sequences of parasome-containing amoebae
and their nonparasome-containing relatives were used to amplify overlapping SSU rRNA fragments of the presumptive parasite from gill, antenna, antennal gland and ventral nerve cord of infected lobsters.
have been isolated worldwide from soil, water, air (1), and from the noses of healthy persons (2,3).
Targeted to scientists, researchers and academics, the journal carries reports of basic research on eukaryotic microorganisms such as yeasts, fungi, algae, protozoa and social amoebae