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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 101 to 110 of 14446 (0.045 seconds)Spelling suggestions: "subject:"diseases."" "subject:"iseases.""
| 101 |
Phytophthora root rot of chestnutChambers, Susan M., 1967- January 1993 (has links) (PDF)
Bibliography: leaves 158-189.
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| 102 |
RELATIONSHIP BETWEEN TUBERCULINA PERSICINA (DITM.) (SACC.) AND PUCCINIA CACABATA (ARTH. & HOLW.)Shannon, Emory Laud, 1931- January 1973 (has links)
No description available.
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| 103 |
Identification of two serotypes in squash mosaic virus strainsKnuhtsen, Hjalmar Frederick Krum, 1935- January 1968 (has links)
No description available.
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| 104 |
A study of certain bacteria associated with keratitis in cattle and goatsFélix, Edmundo Fernándo, 1913- January 1940 (has links)
No description available.
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| 105 |
Masking of tobacco mosaic virus RNA genome in the coat protein of barley stripe mosaic virus.Dodds, James Allan. January 1974 (has links)
No description available.
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| 106 |
The influence of barley stripe mosaic virus on the replication of tobacco mosaic virus in Hordeum vulgare.Dodds, James Allan. January 1972 (has links)
No description available.
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| 107 |
The effect of daylength, pathogen isolate and host variety on Verticillium wilt of sunflower.Sedun, Frederick Samuel. January 1981 (has links)
No description available.
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| 108 |
Partial characterization of the P4 pathotype of pea seedborne mosaic virusKohnen, Paul D. 23 July 1992 (has links)
Biological, serological, and molecular characteristics
of the P4 pathotype of pea seedborne mosaic potyvirus
(PSbMV) were investigated. The characterization allowed P4
to be differentiated from other pathotypes of the same
virus.
P4 was distinguished from P1 on the basis of host
symptomatology. It induced varied, but often distinctive
symptoms in systemically-infected pea (Pisum sativum)
cultivars. P4 inoculation of indicator hosts, notably
Chenopodium album, resulted in the formation of local
lesions.
Pathotype P4 was seed transmitted at low frequencies
relative to P1. In ten selected pea cultivars, seed
transmission of P4 never exceeded 0.7%, while P1 was
transmitted at frequencies as high as 33%. In mixed
infections with P1, pathotype P4 was seed transmitted at 0-
2% as determined by P4-specific indirect ELISA. However,
limited polymerase chain reaction (PCR) data suggest that
P4 may be transmitted with P1 at higher rates than
indicated by ELISA data.
P4 was also aphid transmitted at relatively low rates.
Pea aphids (Acyrthosiphon pisum) allowed 3 or 5 min
acquisition access periods (AAP's) transmitted P4 at a
maximum rate of 16% (3 aphids/plant). P4 transmission
required short (1-7 min) AAP's and exhibited no bimodal
character within tested parameters.
P4 could be serologically distinguished from the other
pathotypes using monoclonal and polyclonal antibodies.
Tests with cross-reactive P4 antiserum suggest that P4 is
more closely related to P2 than P1. P4-specific antiserum
was derived by cross-absorbing diluted antiserum with P1-
infected pea sap to eliminate P1- reactive antibodies.
P1 and P4 RNA was detected and differentiated using
pathotype-specific oligonucleotide primers in conjunction
with PCR. Viral RNA sequences were amplified in pure
preparations as well as crude pea tissue (leaf, root,
pollen, and seed) extracts. / Graduation date: 1993
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| 109 |
Idiopathic autoimmune diseases a study of their serological relationship /Feltkamp, Theodorus Egbertus Wijnandus. January 1966 (has links)
Thesis (doctoral)--Universiteit van Amsterdam.
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| 110 |
Der Einfluss der innersekretorischen Störungen auf das GebissEngering, Ludger. January 1933 (has links)
Thesis (doctoral)--Münster in Westfalen, 1933.
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