Potamogeton is one of the most difficult groups to clarify in aquatic plants, which has an extensive range of interspecific morphological and ecological diversity. Internal transcribed spacer (ITS) is prevalent for phylogenetic analysis in plants. However, most researches demonstrate that ITS has a high percentage of homoplasy in phylogenetic datasets. In this study, eighteen materials were col...

A total of 8 species Euglenophyceae where 5 Euglena namely, lucens Günther, E. paludosa Mainx., gaumei Allorge & Lefèvre , heimii Lef., mangini Lefévre, and 3 Lepocinclis ovum var. deflandriana (Ehrenberg) Lemmermann, L. globulus ( Perty) Lemmermann steinii from Sylhet Division which are all new records for Bangladesh.
 Bangladesh J. Plant Taxon. 28(1): 11-15, 2021 (June)

As ações terapêuticas e farmacológicas de plantas decorrente da ação metabólitos secundários uma importante para a valorização conhecimento biodiversidade rica do Brasil. Nesse contexto, este estudo objetivou investigação por métodos in vitro antioxidante fotoprotetora extratos otimizados planejamentos mistura solventes Copaifera lucens Dwyer, Schnella angulosa (Vogel) Wunderlin Miconia albican...

Oxytelus species are widespread over all continents except Antarctica. Southeast Asia is one of the biodiversity hotspots in the world. In this paper, we review the Oxytelus species currently known from Southeast Asia. Seven species are described as new to science: O. castaneus sp. nov. (Vietnam), O. finitimus sp. nov. (Laos), O. grandiculus sp. nov. (Malaysia, Indonesia, and Thailand), O. insu...

Plankton samples collected and analyzed by the Continuous Plankton Recorder survey were used to examine the length of time spent near the surface in the North Atlantic and the North Sea by three closely related groups of zooplankton (copepodite stages 1-4 Metridia spp., copepodite stages 5-6 Metridia lucens, and copepodite stages 5-6 Metridia longa). For all three groups, the mean daily length ...

Aqueous, ethanolic and ethyl acetate extracts of 13 plants used in South Africa for the treatment of venereal diseases were screened for antibacterial and antifungal activity. Among the plants tested, Gunnera perpensa, Harpephyllum caffrum, Hypoxis latifolia and Ledebouria ovatifolia showed the best antibacterial activity. The aqueous extracts of Gunnera perpensa and Harpephyllum caffrum were m...

A diverse Diptera assemblage, dominated by the family Chloropidae, is associated with common reed (Phragmites australis (Cav.) Trin. ex Steudel, Poaceae) in the Palearctic region (Tewksbury et al. 2002). Although P. australis has long been present in North America, many of its associated Chloropidae have remained restricted to the Palearctic. The best-known chloropid associates of Phragmites ar...

Southern Hemisphere humpback whales (Megaptera novaeangliae) generally undertake annual migrations from polar summer feeding grounds to winter calving and nursery grounds in subtropical and tropical coastal waters. Evidence for such migrations arises from seasonality of historic whaling catches by latitude, Discovery and natural mark returns, and results of satellite tagging studies. Feeding is...