Intra- and interspecies competition of blackgrass and wheat in the context of herbicidal resistance and environmental conditions in Poland.

Blackgrass (Alopecurus myosuroides Huds.), one of the most aggressive grass weeds in Europe, is also a strong competitor of crops. This study aimed to assess the impact of environmental conditions on the competition between (1) ACC-ase and ALS herbicide-resistant (BR) and herbicide-susceptible (BS) blackgrass biotypes, (2) BR and winter wheat cv.

Isolation and Determination of Phenolic Glycosides and Anthraquinones from Rhizomes of Various Reynoutria Species.

Giant knotweeds of the genus (syn. )-, and a hybrid of them, -are noxious invasive plants in Europe and North America. is a traditional East Asian (Japan and China) drug ().

Comparison of Polyphenol Profile and Antimutagenic and Antioxidant Activities in Two Species Used as Source of Solidaginis herba - Goldenrod.

European Pharmacopoeia accepts two equivalent species Solidago canadensis L. and S. gigantea Aiton as goldenrod (Solidaginis herba).

Selective in vitro and in silico butyrylcholinesterase inhibitory activity of diterpenes and rosmarinic acid isolated from Perovskia atriplicifolia Benth. and Salvia glutinosa L.

Cholinesterase inhibition is one of the most treatment strategies against Alzheimer's disease (AD) where metal accumulation is also strongly associated with pathology of the disease. In the current study, we assessed inhibitory effect against acetyl- (AChE) and butyrylcholinesterase (BChE) and metal-chelating capacity of twelve diterpenes: arucadiol, miltirone, tanshinone IIa, 1-oxomiltirone, cryptotanshinone, 1,2-didehydromiltirone, 1,2-didehydrotanshinone IIa, 1β-hydroxycryptotanshinone, 15,16-dihydrotanshinone, tanshinone I, isotanshinone II, 1(S)-hydroxytanshinone IIa, and rosmarinic acid, isolated from Perovskia atriplicifolia and Salvia glutinosa. The compounds were tested at 10 μg/mL using ELISA microtiter assays against AChE and BChE.

Isolation and Fast Selective Determination of Nor-abietanoid Diterpenoids from Perovskia atriplicifolia Roots Using LC-ESI-MS/MS with Multiple Reaction Monitoring.

In the first part of this study we extracted, isolated, and identified the main diterpenoid constituents from the roots of a Central Asian medicinal and ornamental plant--Perovskia atriplicifolia Benth. Eight major nor-abietanoid pigments were obtained using NP silica gel column chromatography and preparative RP-HPLC: cryptotanshinone, 1-hydroxycryptotanhinone, miltirone, 1-oxomiltirone, tanshinone IIa, 1,2 didehydrotanshinone IIa, 1,2 didehydromiltirone, the non-quinone diterpenoid - arucadiol, as well as rosmarinic acid as a main phenolic compound. Secondly, we used the obtained compounds for fast and selective determination of the main diterpenes present in P.