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Partial characterization of the P4 pathotype of pea seedborne mosaic virus

Creator:: Kohnen, Paul D.
Abstract:: 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...
Resource Type:: Dissertation
Full Text:: seedborne mosaic virus An Abstract of the Thesis of Paul D. Kohnen for the degree of Doctor of Philosophy

Serological and biological characterization of seed-borne isolates of blackeye cowpea mosaic and cowpea aphid-borne mosaic potyviruses in Vigna unguiculata (L.) Walp

Creator:: Bashir, Muhammad
Resource Type:: Dissertation
Full Text:: greenhouse experiments. I am also thankful to Dr. Paul D. Kohnen, for his encouragement and friendship. I

Occurrence, transmission, and properties of strains of cucumber mosaic virus that are seed-transmitted in Phaseolus vulgaris

Creator:: Davis, Robert Francis
Abstract:: A survey of major bean (Phaseolus vulgaris) breeding programs and seed producing areas in Idaho, Washington, and Oregon was conducted to determine the occurrence of cucumber mosaic virus (CMV), recently reported to be seedborne in beans. Some 259 plants, sampled from breeding lines of diverse germplasm, were found by enzyme-linked...
Resource Type:: Dissertation
Full Text:: . Richard 0!Hampton A survey of major bean (Phaseolus vulgaris) breeding programs and seed producing areas

Genomic comparisons of seed-transmissible and non-seed-transmissible strains of cucumber mosaic virus

Creator:: Ried, Jeffrey L.
Abstract:: A sensitive assay for the analysis of contaminating segments in pseudorecombinants constructed from a seed-transmissible (CVM-Pg) and a non-seed-transmissible (CMV-Le) strain of cucumber mosaic virus was developed using partial RNase T₁ digestion. Isolated genomic RNA segments produced unique digestion patterns when 3'- end labeled, treated with RNase T₁, and subjected...
Resource Type:: Masters Thesis
Full Text:: , Drs. Richard Hampton, Tom Allen, David Hannaway, George Rohrmann, and Henry Schaup for their

The identity, biological and molecular characteristics and serology of carlaviruses infectious to peas in the Pacific Northwest

Creator:: Weber, Kenneth Alan
Resource Type:: Dissertation
Full Text:: ACKNOWLEDGEMENTS I wish to express special thanks to Dr. Richard 0. Hampton for his friendship, guidance, and

Serological and molecular approaches for distinguishing bean common mosaic and bean common mosaic necrosis potyviruses and their respective pathogroups

Creator:: Xu, Ling, 1963-
Abstract:: Polyclonal antisera were raised against isolates of bean common mosaic virus (BCMV) and bean common mosaic necrosis virus (BCMNV) using conventional serological methods. Infected tissues containing, respectively, 22 recognized BCMV and BCMNV isolates were tested against the two antisera by antigen-coated plate (ACP) ELISA and double antibody sandwich (DAS) ELISA....
Resource Type:: Masters Thesis
Full Text:: I wish to express my sincere appreciation to Dr. Richard 0. Hampton, my major professor, for his

Interactions between pea seed-borne mosaic virus pathotype 1 and Pisum sativum resistance gene sbm-1

Creator:: Keller, Karen E.
Abstract:: Pea seed-borne mosaic potyvirus pathotype 1 (PSbMV-P1) has the ability to infect most genotypes of Pisum sativum. The exception are those genotypes that are homozygous recessive for the sbm-1 gene. The life cycle of PSbMV pathotype 4 (PSbMV-P4) is unaffected by the sbm-1/sbm-1 genotype. Infectious clones of Pl-P4 recombinants were...
Resource Type:: Masters Thesis
Full Text:: - Abstract approved: Richard 0. Hampton Pea seed-borne mosaic potyvirus pathotype 1 (PSbMV-P1) has

Plant communities of the grassy balds of Marys Peak, Oregon

Creator:: Snow, Billy Douglas
Resource Type:: Masters Thesis
Full Text:: like to extend a special thanks to Dr. Richard Hermann for his presence on my coimiittee and his

The effects of a mutation within vitamin E biosynthesis upon the development and function of the photosynthetic apparatus

Creator:: Sicher, Richard Charles
Abstract:: A new photosystem-II mutant of the green alga Scenedesmus obliquus D₃, strain PS-28, has been shown to lack a-tocopherol (vitamin E). The photosynthetic activity of dark grown samples of PS-28 is about 20% of the wild-type control. Culturing the mutant at low light intentisites (10⁴ ergs/sec-cm ²) stimulates photosynthetic activity...
Resource Type:: Dissertation
Full Text:: Richard Charles Sicher, Jr. for the degree of Doctor of Philosophy in Botany (Plant Physiology) presented

Studies on the germination and growth of Anisogramma anomala Peck (Muller) in vitro

Creator:: Lightfoot, Richard (Richard Thomas), 1958-
Abstract:: This study examined the effects of pH, temperature, washing, and post-hydration drying on germination of Anisogramma anomala ascopores. Spores germinate most readily in the temperature range of 5 to 15 degrees C, with an optimal temperature of 10 degrees (1 sd=0.05). Growth was best in the pH range of 5...
Resource Type:: Masters Thesis
Full Text:: anomala Peck (Muller) in vitro AN ABSTRACT OF THE THESIS OF Richard T. Lightfoot for the degree of

ScholarsArchive@OSU

Partial characterization of the P4 pathotype of pea seedborne mosaic virus

Serological and biological characterization of seed-borne isolates of blackeye cowpea mosaic and cowpea aphid-borne mosaic potyviruses in Vigna unguiculata (L.) Walp

Occurrence, transmission, and properties of strains of cucumber mosaic virus that are seed-transmitted in Phaseolus vulgaris

Genomic comparisons of seed-transmissible and non-seed-transmissible strains of cucumber mosaic virus

The identity, biological and molecular characteristics and serology of carlaviruses infectious to peas in the Pacific Northwest

Serological and molecular approaches for distinguishing bean common mosaic and bean common mosaic necrosis potyviruses and their respective pathogroups

Interactions between pea seed-borne mosaic virus pathotype 1 and Pisum sativum resistance gene sbm-1

Plant communities of the grassy balds of Marys Peak, Oregon

The effects of a mutation within vitamin E biosynthesis upon the development and function of the photosynthetic apparatus

Studies on the germination and growth of Anisogramma anomala Peck (Muller) in vitro

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