Results 91 to 100 of about 31,371 (261)

THE INFLUENCE OF GENERAL ENVIRONMENTAL CONDITIONS ON THE PERIODICITY OF ENDOMIXIS IN PARAMECIUM AURELIA

open access: yes, 1917
All four series of experiments show that the general `time-periodicity' of rhythms and endomixis in Paramecium aurelia is the same in the several races which have been studied under the following environmental conditions:1.
L. L. Woodruff
semanticscholar   +1 more source

Microbes, mathematics, and models [PDF]

open access: yes, 2018
Microbial model systems have a long history of fruitful use in fields that include evolution and ecology. In order to develop further insight into modelling practice, we examine how the competitive exclusion and coexistence of competing species have been
O'Malley, Maureen A., Parke, Emily C.
core  

Paramecium tredecaurelia: A Unique Non-Polymorphic Species of the P. aurelia spp. Complex (Oligohymenophorea, Ciliophora) [PDF]

open access: yes, 2013
New stands of Paramecium tredecaurelia, a rare species of the P. aurelia spp. complex, were identified in Thailand and Madagascar on the basis of mating reactions and molecular markers (rDNA and mtDNA).
FOKIN, SERGEY   +4 more
core   +1 more source

Population Growth in Space and Time [PDF]

open access: yes, 2003
How great an effect does self-generated spatial structure have on logistic population growth? Results are described from an individual based model (IBM) with spatially localized dispersal and competition, and from a deterministic approximation to the IBM
Dieckmann, U., Law, R., Murrell, D.J.
core  

Intraspecies Variability in the Esterases and Acid Phosphatases of Four Species of the Paramecium aurelia Complex 1 [PDF]

open access: yes, 1983
One hundred eighty-eight stocks of Paramecium primaurelia. P. biaurelia, P. tetraurelia. and P. octaurelia were grown axenically and screened for variation in four different esterases and acid phosphatase using starch gel electrophoresis.
Allen, Sally Lyman   +2 more
core   +1 more source

Species of the Paramecium aurelia Complex in Italy

open access: yesFolia Biologica, 2010
New stands of Paramecium pentaurelia were recorded in Valmarana, Veneto region in Italy and one stand of P. primaurelia was found at the same locality.
Sebastian Tarcz   +2 more
openaire   +3 more sources

Esterase Variants in Four Species of the Paramecium aurelia Complex 1 [PDF]

open access: yes, 1982
One hundred eighty-eight stocks of Paramecium primaurelia, P. biaurelia, P. tetraurelia , and P. octaurelia were grown axenically and tested for five esterases, visualized by starch gel electrophoresis, in a search for variant stocks.
Allen, Sally Lyman   +3 more
core   +1 more source

STUDIES ON THE CHARACTERIZATION AND STRUCTURE OF THE IMMOBILIZATION ANTIGENS OF PARAMECIUM AURELIA.

open access: yes, 1965
1. Methods for the extraction and purification of the immobilization antigens of Paramecium aurelia have been developed. 2. The immobilization antigen was shown to be a protein of molecular weight 250000.
Jones Ig
semanticscholar   +1 more source

Esterase Variations between the 14 Syngens of PARAMECIUM AURELIA under Axenic Growth.

open access: yesGenetics, 1973
Under axenic growth all 14 syngens of Paramecium aurelia have 4 types of esterases. The three major types (A, B and cathodal C) vary independently in electrophoretic mobility among the syngens. Using these three esterases, stocks can be keyed to a syngen,
S. Allen, S. Farrow, P. Golembiewski
semanticscholar   +1 more source

Spatiotemporal Variations in Abundance and Biomass of Planktonic Ciliates Related to Environmental Variables in a Temporal Pond, Argentina [PDF]

open access: yes, 2012
This report describes the structure and seasonal dynamics of ciliated protozoa associated with variations in the physicochemical characteristics of the environment in a temporary pond in the Buenos Aires province, Argentina.
Claps, Maria Cristina   +1 more
core   +1 more source

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