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Hemolymph factors responsible for defense reactions against pollutants and bacteria, Vibrio alginolyticus, in the Indian edible oyster, Crassostrea madrasensis (Preston) (Th 133)

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Relation http://eprints.cmfri.org.in/7249/
 
Title Hemolymph factors responsible for defense
reactions against pollutants and bacteria, Vibrio
alginolyticus, in the Indian edible oyster,
Crassostrea madrasensis (Preston) (Th 133)
 
Creator Ittoop, Gijo
 
Subject Edible oyster
Fish Biotechnology
Theses
 
Description The study of the defense mechanisms in invertebrates
started with marine animals. The first report on the cellular defense in
invertebrates was the observation of phagocytosis in starfish larvae and
Daphnia (Metchnikoff, 1884). It was suggested that phagocytes play a
significant role in the defense mechanisms of all evolutionary stages of
animals starting from unicellular animals to mammals. The study of
hemolysins in the horse-shoe crab by Noguchi (1903) was the first study
on the humoral immunity of invertebrates.
Since 1960, there was a renewed interest in the study
of defense mechanisms in invertebrates, which was suggested to be
because of two reasons: (1) to find out those mechanisms in invertebrates
that are also discovered in vertebrates and (2) the development of
intensive mariculture requires better knowledge of the factors that may
lead to mortality of the crustaceans and mollusc due to failure of their
defense systems. Marine invertebrates served as experimental materials
for phylogenetic study of defense mechanisms in Animal Kingdom from
late 191h century to the beginning of20lh century (Mori, 1990).
Among invertebrates, the defense systems of molluscs
and insects are being studied extensively in order to understand the basics
of invertebrate inullune system. During the past three decades, there has
evolved a considerable interest in how the molluscs defend themselves
against the invaders. Immunity of molluscs is comprised of cell-mediated
immunity and humoral mechanisms. The cell-mediated immunity is the
function of hemocytes, while humoral immunity is provided by the serum
factors. There are many evidences, which suggest that these two are
interrelated (Cheng, 1990).
Hemolymph in invertebrates is analogous to blood in
vertebrates. The blood of vertebrates consists of plasma and cells. The cells
are red blood corpuscles and white blood corpuscles.
 
Date 2004
 
Type Thesis
NonPeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/7249/1/TH-133.pdf
Ittoop, Gijo (2004) Hemolymph factors responsible for defense reactions against pollutants and bacteria, Vibrio alginolyticus, in the Indian edible oyster, Crassostrea madrasensis (Preston) (Th 133). ["eprint_fieldopt_thesis_type_phd" not defined] thesis, University of Kerala, Thiruvananthapuram.