Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 32 for “"Host-parasite relationships"”.
-
Studies on the Host-Parasite Relationships of Heterodera Trifolii (Goffart) Oostenbrink, 1951
Made available in DSpace on 2015-05-12T17:00:52Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 0018172.PDF: 6513805 bytes, checksum: 746023d8b6f62795eb36ee74d6ad3ee3 (MD5) Previous issue date: 1956
-
Studies on Host-Parasite Relationships and Developmental Biology of Meloidogyne Naasi, Franklin, 1965
Made available in DSpace on 2014-12-09T18:06:31Z (GMT). No. of bitstreams: 1 6915390.pdf: 7237071 bytes, checksum: 13c0a030a882611a981f6e5192ca519e (MD5) Previous issue date: 1969
-
Studies of the Developmental Biology and Host-Parasite Relationships of Tylenchorhynchus Agri Ferris (Nematoda: Tylenchidae)
Made available in DSpace on 2014-12-14T04:37:40Z (GMT). No. of bitstreams: 1 7708959.pdf: 5289693 bytes, checksum: 869ab9a02889d1a0702ac10a419d54e1 (MD5) Previous issue date: 1976
-
Host-Parasite Relationships of Lesion Nematodes, Pratylenchus Filipjev Spp., and Soybean, Glycine Max (L.) Merr
Made available in DSpace on 2014-12-14T04:37:42Z (GMT). No. of bitstreams: 1 7803923.pdf: 4944945 bytes, checksum: 8f6936e90cfbd82f87c6b987668f142a (MD5) Previous issue date: 1977
-
Studies on host-parasite relationships of some species of digenean larvae with the marine prosubranch littorina littorea
… on the carbohydrate content of their molluscan hosts, but in the main these have been based on histochemical tests and at isolated periods of time (see review by Cheng & Snyder 1962a). It was thought therefore that this aspect of host-parasite relationships afforded itself for further study from …
-
A survey of the metazoan parasite assemblage of snoek, Thyrsites atun (Euphrasen, 1791), off South Africa with an assessment of host-parasite relationships and potential biological tags
Parasites are a ubiquitous but often unseen, unacknowledged and understudied component of biological communities. However, their roles in structuring ecosystems, their influence on the evolutionary history of host species and their potential applications are slowly being uncovered. The snoek, …
-
Molekulinė naminių pelėdų (Strix aluco) hemosporidinių parazitų diagnostika /
… they provide an excellent model for studying host-parasite relationships. Haemosporidian parasites of passerines are the most studied, while studies on owls are much less numerous. Therefore, the aim of this work is to investigate the infection of the tawny owl (Strix aluco) with …
-
A comparative study of in vitro chitin synthase activity in mucoraceous hosts of a mycoparasite
… in vitro chitin synthase activity in mucoraceous hosts of a mycoparasite: Chitin synthase, the enzyme responsible for the synthesis of chitin in fungal cell wall was extracted from young hyphae of Choanephora cucurbitarum and Phascolomyces articulosus, susceptible and resistant hosts, …
-
Host use and foraging in the parasitic plant Cuscuta subinclusa.
… in resource acquisition (coil) relative to host quality in a way predicted by the marginal value theorem (MVT) in that: (1) stem coiling, the necessary antecedent and determinant of resource uptake, precedes exploitation of host materials; and (2) mean coiling on a host species is …
-
Factors Influencing Ectoparasitism on Western Fence Lizards (Sceloporus occidentalis): Host Sex, Testosterone, Reproductive Condition, and Behavior
<p>Host-parasite relationships are one of the most common symbiotic relationships present in a diverse array of ecosystems. There are numerous factors that impact the dynamics of these relationships. Major factors that can influence the degree of parasitism include host sex, hormonal state, …
-
A study of nematode parasites of some California salamanders
… information is available concerning the nematode parasites of salamanders in California. Lehmann (1954) reported the finding of Oxyuris dubia Leidy 1856, in the rectum of 33 Ensatine e. Eschscholtzii from Sonoma County, California, and in 3 of 10 Batrachoseps a. Attenuatus, from San Francisco …
-
Investigations on the host-parasite interface of a mycoparasite system /
… of Choanephora cucur - bitarum and the host-parasite interface, after infection with Piptocephalis virginiana , were examined in detail. The cell walls of C_. cucurbitarum were determined to be composed of chitin (17%), chitosan (28.4%), neutral sugars (7.2%),uronic acid (2.4%), proteins …
-
Larval trematode populations and host-parasite interactions in Cerithidea Californica
<p>Cerithidea california is examined to determine the fecundity of the parasitic trematode species in its gonad. Five species of trematodes are studied (Cloacitrema michiganensis, Euhaplorchis californiensis, Parorchis acanthus, Himasthia rhigedana, and Acanthoraryphium sp.). Their fecundity is …
-
Isolation and characterization of a chitinase-secreting mutant of mortierella pusilla with altered interaction with the mycoparasite piptocephalis virginiana
Mortierella pusilla is a susceptible host and supports good growth of the mycoparasite, Piptocephalis virginiana. Uninucleate spores of M. pusilla were sUbjected to N-methyl-N'-nitro-nitrosoguanidine (MNNG). To attain a high mutation frequency , a 1o-minute exposure to 10 mg/ml MNNG was used and …
-
The etiology of root rot and decline of English boxwood (Buxus sempervirens cv. suffruticosa L.)
… with declining plants, investigation of host-parasite relationships and determination of the environmental aspects of the decline were investigated under laboratory, greenhouse, and field conditions. English boxwood decline is increasing in northern Virginia and the Shenandoah Valley and …
-
Factors influencing parasite-related supression of mating behavior in the isopod caecidotea intermedius
Parasites with indirect life cycles often facilitate changes in their intermediate hosts in ways that increase the likelihood of transmission to their definitive hosts. Acanthocephalan infections typically correlate with altered pigmentation, antipredatory behavior, and changes in mating behavior …
-
Annual cycle and morphology of lice parasitizing two sympatric African small mammals (Micaelamys namaquensis and Elephantulus myurus)
Host-parasite relationships are complex because hosts use certain mechanisms (grooming, immune response) to get rid of the parasites while parasites try to evade these mechanisms. At the same time, these mechanisms are energetically costly to the host and can lead to poor body condition which in …
Page 1 of 2