A E Osbourn
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Explore the profile of A E Osbourn including associated specialties, affiliations and a list of published articles.
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21
Citations
651
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Recent Articles
1.
Osbourn A
Proc Natl Acad Sci U S A
. 2001 Dec;
98(25):14187-8.
PMID: 11734635
No abstract available.
2.
Dufresne M, Osbourn A
Mol Plant Microbe Interact
. 2001 Mar;
14(3):300-7.
PMID: 11277427
Although plant diseases are usually characterized by the part of the plant that is affected (e.g., leaf spots, root rots, wilts), surprisingly little is known about the factors that condition...
3.
Trojanowska M, Osbourn A, Daniels M, Threlfall D
Phytochemistry
. 2001 Feb;
56(2):121-9.
PMID: 11219805
The biosynthesis of cyclic triterpenoids in ten saponin-deficient (sad) mutant varieties of the diploid oat Avena strigosa is reported. Two mutants were found to be deficient in 2,3-oxidosqualene:beta-amyrin cyclase (OSbetaAC)...
4.
Morrissey J, Wubben J, Osbourn A
Mol Plant Microbe Interact
. 2000 Oct;
13(10):1041-52.
PMID: 11043466
The phytopathogenic fungus Stagonospora avenae is able to infect oat leaves despite the presence of avenacoside saponins in the leaf tissue. In response to pathogen attack, avenacosides are converted into...
5.
Trojanowska M, Osbourn A, Daniels M, Threlfall D
Phytochemistry
. 2000 Jun;
54(2):153-64.
PMID: 10872206
In keeping with the proposal that avenacin biosynthesis is restricted to the tips of primary roots of oat seedlings, the incorporation of radioactivity from R-[2-(14)C]mevalonic acid (MVA) into avenacins and...
6.
Papadopoulou K, Melton R, Leggett M, Daniels M, Osbourn A
Proc Natl Acad Sci U S A
. 1999 Oct;
96(22):12923-8.
PMID: 10536024
Saponins are glycosylated plant secondary metabolites found in many major food crops [Price, K. R., Johnson, I. T. & Fenwick, G. R. (1987) CRC Crit. Rev. Food Sci. Nutr. 26,...
7.
Hornsten L, Su C, Osbourn A, Garosi P, Hellman U, Wernstedt C, et al.
J Biol Chem
. 1999 Sep;
274(40):28219-24.
PMID: 10497176
Linoleate diol synthase is a homotetrameric ferric hemeprotein, which catalyzes dioxygenation of linoleic acid to (8R)-hydroperoxylinoleate and isomerization of the hydroperoxide to (7S,8S)-dihydroxylinoleate. Ferryl intermediates and a tyrosyl radical are...
8.
Morrissey J, Osbourn A
Microbiol Mol Biol Rev
. 1999 Sep;
63(3):708-24.
PMID: 10477313
Many plants produce low-molecular-weight compounds which inhibit the growth of phytopathogenic fungi in vitro. These compounds may be preformed inhibitors that are present constitutively in healthy plants (also known as...
9.
Carter J, Spink J, Cannon P, Daniels M, Osbourn A
Appl Environ Microbiol
. 1999 Jul;
65(8):3364-72.
PMID: 10427021
A total of 161 fungal isolates were obtained from the surface-sterilized roots of field-grown oat and wheat plants in order to investigate the nature of the root-colonizing fungi supported by...
10.
Osbourn A
Fungal Genet Biol
. 1999 Jun;
26(3):163-8.
PMID: 10361030
Many plants produce antifungal secondary metabolites. These may be preformed compounds which are found in healthy plants and which may represent in-built chemical barriers to infection by potential pathogens (preformed...