Chemical pollutants, such as pesticides, often leach into aquatic environments and impact non-target organisms. Marine invertebrates have complex life cycles with multiple life-history stages. Exposure to pesticides during one stage potentially influences subsequent stages; a process known carry-over effect. Here, we investigated effects on the jellyfish Aurelia coerulea . We exposed polyps ind...

Afrotropical and Palaearctic species of the subfamilies Campopleginae, Cryptinae Ophioninae Ichneumonidae (Hymenoptera) are treated. Hyposoter ardens sp. nov. Xanthocampoplex melanocephalus described from South Africa. An identification key to Morley, 1913 is provided. obliquus (Seyrig, 1935) reported for first time Africa, Meloboris collector (Thunberg, 1822), Bathyplectes carinatus Horstmann,...

Understanding the life history strategy of organisms is key to predicting their population dynamics. The scyphozoan jellyfish has displayed an increasing trend in recent decades, yet its not fully understood. To interpret reproduction from evolutionary ecology perspective, we dissected 10 asexual generations Aurelia coerulea polyps investigate relationships between transgenerational effects on ...

Cytochrome P450 93 family (CYP93) belonging to the cytochrome P450 superfamily plays important roles in diverse plant processes. However, no previous studies have investigated the evolution and expression of the members of this family. In this study, we performed comprehensive genome-wide analysis to identify CYP93 genes in 60 green plants. In all, 214 CYP93 proteins were identified; they were ...

Polyploidization as the consequence of 2n gamete formation is a prominent mechanism in plant evolution. Studying its effects on the genome, and on genome expression, has both basic and applied interest. We crossed two diploid (2n = 2x = 16) Medicago sativa plants, a subsp. falcata seed parent, and a coerulea × falcata pollen parent that form a mixture of n and 2n eggs and pollen, respectively. ...

Microbial transformation is a complementary tool in the investigation of drug metabolism. In the present investigation, biotransformation of vincamine was studied using microbial cultures. Bacterial, fungal, and yeast cultures were employed to elucidate the metabolism of vincamine. The results indicate that a number of microorganisms metabolized vincamine to various levels to yield three major ...

To date, variation in nectar chemistry of flowering plants has not been studied in detail. Such variation exerts considerable influence on pollinator-plant interactions, as well as on flower traits that play important roles in the selection of a plant for visitation by specific pollinators. Over the past 60 years the Aquilegia genus has been used as a key model for speciation studies. In this s...