Alternanthera philoxeroides is a perennial invasive species worldwide which can greatly affect native ecosystems and agricultural production. Our research studied the allelopathic effects of aqueous extracts of A. philoxeroides on the growth and antioxidant enzyme activities of Zoysia matrella, and ...

In recent years, the population of Stellera chamaejasme L. weed is increasing due to degradation of grasslands in northern and western China. It has caused major damage to plant ecosystem but the mechanisms to facilitate the spread of this weed is not clear. We isolated the umbelliferone, as main...

In laboratory studies, we determined the allelopathic potential of sweet potato (Ipomoea batatas L. (Lam.)) varieties and identified their putative allelochemicals using gas chromatography mass spectrometer (GC-MS). The allelopathic potential of sweet potato varieties was determined to control...

Secondary plant metabolites may influence plant-plant interactions and plant invasions. Distinguishing such chemicals requires integrating varying chemical ecology approaches, information on the amounts and persistence of specific chemicals in nature, and measures of effects (e.g., phytotoxicity...

Alliaria petiolata is a widespread biennial herb from Eurasia that is one of the most recognizable invasive plants of forests in the eastern United States and southern Canada. After two decades of intensive study on its physiology, ecology, and impacts, this plant has come to be known in both the...

Ambrosia artemisiifolia L. (common ragweed) is an invasive plant whose allelopathic properties have been suggested by its field behaviour and demonstrated through phytotoxicity bioassays. However, the nature of the molecules responsible for the allelopathic activity of common ragweed has not been...

A key hypothesis that has been proposed to explain plants' invasive success suggests that some invasive species produce allelochemicals that are novel against naïve neighbours at the introduced range and therefore provide an advantage there (novel weapons hypothesis - NWH). However, a...

Premise of research. Ailanthus altissima, an invasive Asiatic tree, is notable for its rapid growth rate (particularly in nutrient-poor soils), root-based cloning, and allelopathy. We investigated whether root exudates from A. altissima stimulate nodulation of red clover, Trifolium pratense, as a...

DNA isolation from the weed, Parthenium hysterophorus is complicated due to the presence of high amount of allelochemicals in the form of secondary metabolites that causes hindrance in extraction and enzymatic reactions. A modified and efficient DNA extraction from P. hysterophorus leaf has been...

Helianthus tuberosus L. (Jerusalem artichoke), a perennial plant native to North America, is one of the most dangerous invasive species in Europe. The fast spread of the plant may be enhanced by its allelopathic effects, through the release of chemical compounds into the environment. The goal of...