The Antimicrobial Effects of Myrosinase Hydrolysis Products Derived from Glucosinolates Isolated from .

(hoary cress) is a perennial plant belonging to the family that produces two dominant glucosinolates (GLSs): glucoraphanin (GRN) and sinalbin (SBN). They represent the stored form, which is converted upon the myrosinase (Myr) hydrolysis activity to active compounds, mainly isothiocyanates (ITCs) such as sulforaphane (SFN) or -hydroxybenzyl isothiocyanate (pHBITC). Research on ITCs that have proven anticancer, antimicrobial, and chemoprotective properties is usually conducted with pure commercially available compounds.

Effect of chronic radiation on the flax (Linum usitatissimum L.) genome grown for six consecutive generations in the radioactive Chernobyl area.

The growth of plants under chronic radiation stress in the Chernobyl area may cause changes in the genome of plants. To assess the extent of genetic and epigenetic changes in nuclear DNA, seeds of the annual crop flax (Linum usitatissimum L.) of the Kyivskyi variety, sown 21 years after the accident and grown for six generations in radioactive (RAD) and remediated (REM) fields were analysed.

Basic β-1,3-Glucanase from Exhibits Antifungal Potential in Transgenic Tobacco Plants.

The basic β-1,3-glucanase of the carnivorous plant was tested as a purified protein, as well as under the control of a double promoter in transgenic tobacco for its capability to inhibit the growth of , , , and in an in-vitro assay. The purified protein inhibited tested phytopathogens but not the saprophytic fungus . Out of the analysed transgenic plants, lines 13, 16, 19, and 22 exhibited high transcript abundance normalised to the transcript.

Biochemical and antifungal characteristics of recombinant class I chitinase from Drosera rotundifolia.

DrChit is class I chitinase involved in the digestion of insect prey of Drosera rotundifolia plants. Herein, we cloned the DrChit open reading frame lacking the 5'- sequence coding signal peptide into the pET32a vector and its derivate lacking the thioredoxin tag. After DrChit + Trx and DrChit-Trx overexpression in Escherichia coli cells and purification on Ni-NTA agarose, both enzymes exhibited maximum activity at pH 6.

Expression of Drosera rotundifolia Chitinase in Transgenic Tobacco Plants Enhanced Their Antifungal Potential.

In this study, a chitinase gene (DrChit) that plays a role in the carnivorous processes of Drosera rotundifolia L. was isolated from genomic DNA, linked to a double CaMV35S promoter and nos terminator in a pBinPlus plant binary vector, and used for Agrobacterium-mediated transformation of tobacco. RT-qPCR revealed that within 14 transgenic lines analysed in detail, 57% had DrChit transcript abundance comparable to or lower than level of a reference actin gene transcript.

Structural and functional characterisation of a class I endochitinase of the carnivorous sundew (Drosera rotundifolia L.).

Chitinase gene from the carnivorous plant, Drosera rotundifolia , was cloned and functionally characterised. Plant chitinases are believed to play an important role in the developmental and physiological processes and in responses to biotic and abiotic stress. In addition, there is growing evidence that carnivorous plants can use them to digest insect prey.

The pollen- and embryo-specific Arabidopsis DLL promoter bears good potential for application in marker-free Cre/loxP self-excision strategy.

Marker-free transgenic plants can be generated with high efficiency by using the Cre/ lox P self-excision system controlled by the pollen- and embryo-specific Arabidopsis DLL promoter. In this work, we aimed to study the feasibility of using the pollen- and embryo-specific DLL promoter of the At4g16160 gene from Arabidopsis thaliana in a Cre/loxP self-excision strategy. A Cre/loxP self-excision cassette controlled by the DLL promoter was introduced into the tobacco genome via Agrobacterium-mediated transformation.