Abiotic stressors may affect biogenic volatile organic compounds (BVOCs) involved in plant communication. We examined how certain environmental conditions affect plant signaling via BVOC emission. Specifically, we investigated the effects of elevated CO₂ and temperature in situ on BVOCs produced by ...

Two phytotoxic xanthanolides, xanthinin and xanthatin, were isolated from the leaves and fruits of invasive weed, Xanthium italicum Morretti, commonly known as Italian cocklebur. They slightly inhibited the seedling growth of Italian cocklebur, but were very inhibitory to lettuce, ryegrass and two...

Background: Solanum elaeagnifolium, an invasive weed of the Solanaceae family, is poorly studied although it poses a significant threat to crops. Here the analysis of the transcriptome of S. elaeagnifolium is presented, as a means to explore the biology of this species and to identify genes related ...

The brown marmorated stink bug, Halyomorpha halys, is an invasive insect in the United States that is capable of inflicting significant yield losses for fruit, vegetable, and soybean growers. Recently, a male-produced aggregation pheromone of H. halys was identified as a 3.5:1 mixture of (3S,6S,7...

The exotic redbay ambrosia beetle, Xyleborus glabratus Eichhoff, has become a serious invasive pest in the USA, now established in eight southeastern states. Females are the primary vectors of a fungal pathogen, Raffaelea lauricola, that causes laurel wilt, a lethal disease of trees in the family...

The invasive woodwasp Sirex noctilio Fabricius (Hymenoptera: Siricidae) is obligately associated with the symbiotic white rot fungus Amylostereum areolatum (Chaillet ex Fries) Boidin (Basidiomycota: Amylosteraceae), and shows positive chemotaxis to volatiles emitted by this symbiont. After...

Caulerpa racemosa is a marine Chlorophyta widely distributed in tropical areas, introduced into the Mediterranean Sea since 1990. It has been invading the Mediterranean Sea causing ecological problems. This invasive event can be considered as one of the most serious in the history of species...

The comparative study of essential oil composition in two species of the genus Thymus L. (T. paucifolius Klok. and T. talijevii Klok. et Schost.) collected from field and introduced population was performed. It was shown that the content of sesquiterpenes in essential oil is much lower in...

The secondary metabolites from the aerial parts of Ageratina adenophora have been characterized but relatively little is known about the compounds in its root exudates. Three sesquiterpenes, amorpha-4, (7(11)-dien-8-one DTD), eupatorenone, and (9-oxo-ageraphorone) and two esters dibutyl phthalate...

Lantana camara L. is a widespread plant species mostly native to subtropical and tropical regions of the world. In this study, insecticidal and repellent activities of L. camara essential oil were evaluated against Callosobruchus maculatus (Fabricius) (Col: Bruchidae). Analysis of chemical...