Background & Objective: The emergence of multidrug-resistant virus, bacteria and fungi has
created an urgent need for the development of novel antibiotic drugs from natural products …

The present review describes research on novel natural isoquinoline alkaloids and their N-
oxides isolated from different plant species. More than 200 biological active compounds …

Plants have developed effective defence strategies to protect themselves from
phytopathogenic microbes and herbivores in their environment. Disease resistance in plants …

Twenty-six simple isoquinolines and 21 benzylisoquinolines were tested for antimicrobial,
antimalarial, cytotoxic, and anti-HIV activities. Some simple isoquinoline alkaloids were …

Fumaria species, commonly known as fumitory or earth smoke, are considered weeds in
many regions. However, several Fumaria species have long been used in folk medicine …

ABSTRACT Annona hypoglauca Mart., Annonaceae, popularly known as “beribá”, was
collected in flooded areas of the Amazonian Rain Forest. The crude extract obtained from …

Antibiotics are among the most often used medications in human healthcare and agriculture.
Overusing these substances can lead to complications such as increasing antibiotic …

Publisher Summary This chapter presents chemotaxonomic compilation of protoberberine
alkaloids, 13 C NMR data of the protoberberine alkaloids and discusses biological activity of …

Plants produce a broad variety of natural products. The data bank NAPRALERT listed about
88,000 natural products in 1988, of which about 16,000 were alkaloids. These so-called …

Cissampelos capensis, commonly known by the Afrikaans name “dawidjies” or
“dawidjieswortel”, is the most important and best known medicinal plant of the family …