Results 181 to 190 of about 6,586 (224)

Investigation of avenacin-deficient mutants of Avena strigosa

Phytochemistry, 2001
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) (EC 5.4.99) and thus unable to produce the beta-amyrin necessary for the production of avenacins. The other mutants studied had
M R, Trojanowska, A E, Osbourn, M J, Daniels, D R, Threlfall   +3 more
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Avena strigosa Schreb.

2021
Published as part of Info Flora, 2021,
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A DESYNAPTIC MUTANT IN AVENA STRIGOSA

Canadian Journal of Genetics and Cytology, 1965
A strain of diploid oats, Avenn stl-igosn Schreb. (2n = 14) C.I. 4748, was crossed with its autotetraploid form (2n = 28) produced by colcl~icine treatment. T h e F, triploid ss were reoularlv forrned. I L1 i This plant proved to be heterozygous for a gene which in the recessive condition was responsible for partial desynapsis.
P. L. Dyck, Tibor Rajhathy
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Assignment of oat linkage groups to microdissected Avena strigosa chromosomes

Theoretical and Applied Genetics, 2002
Microdissection of metaphase chromosome preparations of diploid oat Avena strigosa (2n = 14) allowed isolation of the three individual chromosomes with distinct morphologies, numbers 2, 3 and 7. Using a PCR approach based on the DNA of microdissected chromosomes, STS derivatives of RFLP markers, genetically mapped in Avena spp.
Y., Loarce, E., Ferrer, G., Künzel, A., Fominaya   +3 more
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A SECONDARY TRISOMIC IN AVENA STRIGOSA

Canadian Journal of Genetics and Cytology, 1970
The pairing behaviour of the chromosomes and the morphology of a secondary trisomic plant is briefly described. The plant was male and female sterile caused presumably by a deleterious dosage effect.
Tibor Rajhathy, George Fedak
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Meiotic chromosome association in diploid and tetraploid Avena strigosa Schrel.

Genome, 1989
In diploid Avena strigosa the frequency and distribution of open (rod) bivalents suggest that a limited number of chromosomes, possibly two, fail to have a chiasma in one (short) arm in over 60% of the cells. In the tetraploid these are expected to form bivalents instead of quadrivalents at metaphase I of meiosis in a high frequency.
Zadov, S.N., Choubey, R.N., Gupta, S.K., Sybenga, J.   +3 more
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TRISOMICS OFAVENA STRIGOSA

Canadian Journal of Genetics and Cytology, 1975
A set of seven primary trisomics and seven derived types were produced in Avena strigosa Schreb., a diploid oat species. Each trisomic type had a distinct phenotype. The primary trisomics were identified on the basis of plant and chromosome morphology. Although fertility (seed-set) and the frequency of transmission of the extra chromosome varied among ...
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Avenaol, a germination stimulant for root parasitic plants from Avena strigosa

Phytochemistry, 2014
Root exudates from the allelopathic plant, black oat (Avena strigosa Schreb.), were found to contain at least six different germination stimulants for root parasitic plants, but no known strigolactones (SLs). One of these germination stimulants was purified and named avenaol.
Hyun Il, Kim, Takaya, Kisugi, Pichit, Khetkam, Xiaonan, Xie, Kaori, Yoneyama, Kenichi, Uchida, Takao, Yokota, Takahito, Nomura, Christopher S P, McErlean, Koichi, Yoneyama   +9 more
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Characterisation of root-knot nematode resistance in black oat, Avena strigosa, ‘Terara’

Nematology, 2021
Summary The mechanism of root-knot nematode (RKN) resistance in black oat ‘Terara’ and its stability under high temperatures were examined. To investigate the suppressive mechanism, we observed root invasion and development of RKN in ‘Terara’. Juveniles of Meloidogyne incognita
Kenta Uesugi, Masaaki Katsura, Naohiro Uwatoko, Gaku Murata, Kei Iwabuchi   +4 more
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Isolation and mapping of resistance gene analogs from the Avena strigosa genome

Theoretical and Applied Genetics, 2004
Degenerate primers based on conserved regions of the nucleotide binding site (NBS) domain (encoded by the largest group of cloned plant disease resistance genes) were used to isolate a set of 15 resistance gene analogs (RGA) from the diploid species Avena strigosa Schreb. These were grouped into seven classes on the basis of 60% or greater nucleic acid
M L, Irigoyen, Y, Loarce, A, Fominaya, E, Ferrer   +3 more
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