Botanists and mycologists have long debated the potential for full myco-heterotrophy in the achlorophyllous Pyrola aphylla (Ericaceae). Here we address the ecophysiology of this putative myco-heterotroph and two other closely related green species in the tribe Pyroleae (Pyrola picta and Chimaphila umbellata). The stable isotopes of carbon and nitrogen (delta13C and delta15N) were analysed from ...

Sheep farming in Brazil has been proved to be a promising economical activity by the offering of products with increased interest. Infections with gastrointestinal parasites from family of Trichostrongylidae, especially represented by Haemonchus contortus, are one the most limiting problem in sheep production, aggravated by the increasing resistance of nematodes to traditional anthelmintic drug...

INTRODUCTION Hyperglycemia is a serious health problem prevailing in diabetes patients. Treatment for hyperglycemia by various oral anti-hyperglycemic drugs have associated with side effects, hence there is growing awareness towards the use of herbal products due to their efficacy, minimal side effects and relatively low costs. This study is designed to evaluate anti-hyperglycemic activity of C...

Copernican Cosmography was used to discover the path linking Cebu islands and Acapulco via Kuro-Shivo Stream, as registered in Physica Speculatio, first physics book written in New Spain. Teaching and practice of Copernican theory were an outcome of both Spanish expansion into the Pacific Ocean and native elite instruction devised by Augustinian friars. Copernican cosmography was explained in P...

BACKGROUND Due to the complex anatomy of the root canal system, biomechanical preparation is not able to completely eliminate all microorganisms present in the endodontic infections, making it necessary the use of an intracanal medication. AIM The aim of this study was to assess the antimicrobial activity of an intracanal medication containing the ethyl-acetate fraction of Pothomorphe umbella...

Wetlands are often considered sinks for contaminants, and Aquatic plants have been shown to play important roles in wetland biogeochemistry through their active and passive circulation of elements. In this research, in order to evaluate the concentration level of heavy metals released by the urban, industrial and agricultural activities at the margin of the rivers flowing into Anzali lagoon, as...

Assessments of the effects of invertebrate herbivores on high-altitude plants have seldom taken into account both mutualistic and antagonistic interactions. To evaluate the effect of herbivores (antagonists) and pollinators (mutualists) on the female reproductive success of the high-Andean perennial herb Alstroemeria umbellata, we separately and simultaneously excluded aphids (herbivores), and ...