Results 131 to 140 of about 6,793 (174)

Expression of transgenic stilbene synthases in wheat causes the accumulation of unknown stilbene derivatives with antifungal activity

Journal of Plant Physiology, 2005
The expression of foreign phytoalexins in a new host is thought to increase fungal resistance, since host-specific pathogens have not experienced selection for detoxifying or metabolising the novel antifungal compounds. Two resveratrol synthase genes vst1 and vst2 from grapevine (Vitis vinifera L.) and the pinosylvin synthase gene pss from pine (Pinus ...
Liliya, Serazetdinova, Klaus H, Oldach, Horst, Lörz   +2 more
openaire   +2 more sources

Stilbene Compounds and Stilbene Synthase Expression during Ripening, Wilting, and UV Treatment in Grape cv. Corvina

Journal of Agricultural and Food Chemistry, 2001
The content of selected phenolic compounds including resveratrol (trans-3,5,4'-trihydroxystilbene) and its cis-isomer and glucosides (piceides) were monitored in grape (Vitis vinifera L. cv. Corvina) berry skin during ripening in the vineyard and in response to the post-harvest drying process (wilting).
Versari A., Paola Parpinello G., Battista Tornielli G., Ferrarini R., Giulivo C.   +4 more
openaire   +4 more sources

Grapevine clones discriminated using stilbene synthase–chalcone synthase markers

Journal of the Science of Food and Agriculture, 2004
AbstractTouriga Nacional is the most popular Portuguese grapevine cultivar. After twenty years of clonal selection, highly recommended qualitative and productive clones have been identified. In the genus Vitis several molecular markers have been used to characterize genetic diversity at the DNA level, namely microsatellites, ISSR (inter simple sequence
Miguel A Faria, Marisa Beja‐Pereira, Antero Martins, Margarida A Ferreira, Maria Eugénia S Nunes   +4 more
openaire   +1 more source

Induction of stilbene synthase by Botrytis cinerea in cultured grapevine cells

Planta, 1991
The interaction between Botrytis cinerea Pers. and grapevine (Vitis vinifera L.) was studied in a model system of reduced complexity. Cultured plant cells and fragments of fungal cell wall were used to simulate some of the processes taking place upon infection of grapevine with B. cinerea.
, Liswidowati, F, Melchior, F, Hohmann, B, Schwer, H, Kindl   +4 more
openaire   +2 more sources

Expression of the stilbene synthase genes in the needles of spruce Picea jezoensis

Russian Journal of Genetics, 2016
Stilbenes are valuable plant phytoalexins, the biosynthesis of which is characteristic of different groups of phylogenetically unrelated plants. It is believed that all the stilbenes are the derivatives of resveratrol (3,5,4'-trihydroxy-trans-stilbene) or compounds close to it (pinosylvin or piceatannol).
K V, Kiselev, Z V, Ogneva, A R, Suprun, Yu N, Zhuravlev   +3 more
openaire   +2 more sources

Phytoalexin Biosynthesis: Stilbene Synthase and Co-Action of a Reductase with Chalcone Synthase

1993
The biosynthesis of most phytoalexins is complex, and gene technology appears difficult, because gene transfer of complete pathways and their regulation into new hosts is not yet feasible. We summarize data on key enzymes in the biosynthesis of two phytoalexin types: a) stilbene synthase, which catalyzes a one-step reaction to phytoalexins from ...
J. Schröder, S. Schanz, S. Tropf, B. Kärcher, G. Schröder   +4 more
openaire   +1 more source

Piceid (Resveratrol Glucoside) Synthesis in Stilbene Synthase Transgenic Apple Fruit

Journal of Agricultural and Food Chemistry, 2006
A stilbene synthase gene along with the selectable marker gene bar for herbicide resistance was transferred via Agrobacterium tumefaciens mediated transformation into apple (Malus domesticaBorkh.) cvs. 'Elstar' and 'Holsteiner Cox'. The stilbene synthase catalyzes the conversion of 1 molecule of p-coumaroyl-CoA and 3 molecules of malonyl-CoA into 3,4 ...
Susanne, Rühmann, Dieter, Treutter, Steffi, Fritsche, Karlis, Briviba, Iris, Szankowski   +4 more
openaire   +2 more sources

Overexpression of stilbene synthase genes to modulate the properties of plants and plant cell cultures

Biotechnology and Applied Biochemistry, 2020
AbstractPlant stilbenes have attracted special attention as they possess valuable health benefits and improve plant resistance to environmental stresses. Stilbenes are synthesized via the phenylpropanoid pathway, where stilbene synthase (STS, EC 2.3.1.95) directly catalyzes the formation of t‐resveratrol (monomeric stilbene).
Konstantin V. Kiselev, Alexandra S. Dubrovina   +1 more
openaire   +2 more sources

Localization of stilbene synthase in Vitis vinifera L. during berry development

Protoplasma, 2008
The localization of stilbene synthase (STS) (EC 2.3.1.95) in grape berry (Vitis vinifera L.) was investigated during fruit development. The berries were collected at 2, 4, 7, 11, and 15 weeks postflowering from the cultivar Nebbiolo during the 2005 and 2006 growing seasons. High-performance liquid chromatography analysis showed that berries accumulated
V. Fornara, E. Onelli, F. Sparvoli, M.R. Rossoni, R. Aina, G. Marino, S. Citterio   +6 more
openaire   +4 more sources

Evidence that stilbene synthases have developed from chalcone synthases several times in the course of evolution

Journal of Molecular Evolution, 1994
Chalcone (CHS) and stilbene (STS) synthases are related plant-specific polyketide synthases that are key enzymes in the biosynthesis of flavonoids and of stilbene phytoalexins, respectively. A phylogenetic tree constructed from 34 CHS and four STS sequences revealed that the STS formed no separate cluster but grouped with CHS from the same or related ...
Tropf, S., Lanz, T., Rensing, Stefan A., Schröder, J., Schröder, G.   +4 more
openaire   +3 more sources