Prologue to Parasitology

Introduction to parasitology l.jpg
1 / 13
1355 days ago, 512 views
PowerPoint PPT Presentation

Presentation Transcript

Slide 1

´╗┐Prologue to Parasitology Definitions and Concepts

Slide 2

Basic Definitions Symbiosis Term was initially authored by the German de Bary in 1879 to signify "living respectively." It was initially instituted to allude to all situations where different living beings or species (e.g., heterogenetic affiliations) live respectively in a close affiliation.

Slide 3

Types of Symbiotic Associations Phoresis, commensalism, mutualism, and parasitism If we consider the level of the affiliation, then phoresis and commensalism speak to "free" affiliations, where as mutualism and parasitism specify "suggest" affiliations

Slide 4

1 .Phoresis (Phoresy) Phoresis signifies "to convey." A kind of cooperative relationship in which one living being (the littler phoront) is mechanically gone ahead or in another species (have) .

Slide 5

2. Commensalism Means "eating at a similar table" Occurs when one individual from the partner match, for the most part the littler, gets all the advantage and the other part is neither profited nor hurt Branchiobdelid worm appended to a crawfish

Slide 6

3. Mutualism Occurs when every individual from the affiliation benefits alternate Mutuals are metabolically subject to each other; one can't make due without the other Often included as an exceptional subcategory of mutualism is cleaning beneficial interaction In this relationship, certain creatures known as cleaners , evacuate ectoparasites, microscopic organisms, infected and harmed tissue from collaborating has Honeybee conveying dust to a leave bush

Slide 7

4. Parasitism Parasitos ( para: adjacent to; sitos: grain or sustenance) Definitions of parasitism have generally centered upon some environmental part of the parasite-have collaboration Anterior end of a hookworm

Slide 8

Metabolic Dependency (= Feeding Mode ) According to this point of view, parasites were "every one of those animals which discover their support and living space on other living life forms without annihilating it (the host) as predators do their prey" Parasitism is a close and required relationship between two living beings amid which time one life form (the parasite) is metabolically subject to the host. Formative Stimuli Nutritional Dependence Digestive Enzymes Control of Maturation

Slide 9

Habitat Preference Some scientists have focused on that parasites are recognized from free living creatures by their environment inclination. The living space (=environment) is shaped by another living creature to which the parasite exchanged "the weight of controlling its association with the outer environment"

Slide 10

Harmful Effects Some parasitologists underscored that parasites delivered destructive impacts on their hosts Given this accentuation, parasitism could be characterized as the type of advantageous interaction in which "one species inhabited the cost of the other" in the affiliation

Slide 11

Webster's Third New International Dictionary "A life form living in or on another living life form, getting from it part or the greater part of its natural nutriment, usually showing some level of versatile basic adjustment, and bringing on some level of genuine harm to its host"

Slide 12

Is There a Resolution? Various parasitologists have presumed that there is no unmistakable nature, capacity, advancement, or physiology that recognizes all parasites from all nonparasites generally, there is no such thing as an unambiguous meaning of parasitism on the grounds that exclusive regular family is unambiguous in science, and parasites don't speak to a monophyletic bunch

Slide 13

The Sliding Scale of Symbiosis