Microspore development in Annona (Annonaceae): Differences between monad and tetrad pollen

Lora Et Al., Bicellular and Tricellular Pollen in Annona Cherimola the Coexistence of Bicellular and Tricellular Pollen in Annona Cherimola Mill. (annonaceae): Implications for Pollen Evolution

Extracts from Annona Muricata L. and Annona Reticulata L. (Annonaceae) Potently and Selectively Inhibit Plasmodium Falciparum

The aim of this work was to screen extracts from Annona muricata and Annona reticulata in vitro against Plasmodium falciparum. Crude ethanolic extracts, methylene chloride fractions, aqueous fractions, subfractions and isolated compounds (stigmasterol-3-O-β-d-glucopyranoside, lichexanthone, gallic acid and β-sitosterol-3-O-β-d-glucopyranoside) were tested for cytotoxicity on erythrocytes and Hu...

Expression of b-galactosidase and b-xylosidase genes during microspore and pollen development

Tobacco (Nicotiana tabacum L.) microspores at the time of mitosis are characterized by the abundant occurrence of 92and 98-kDa glycoproteins (GP92 and GP98). GP92 is a soluble protein while GP98 is bound to the insoluble microspore fraction. Both glycoproteins were isolated by affinity chromatography and SDS– PAGE and analysed by MS. Peptide sequences were determined by l-HPLC/nano-ESI–MS/MS (e...

Antinociceptive and anti-inflammatory activities of the ethanolic extract of Annona vepretorum Mart. (Annonaceae) in rodents

BACKGROUND Annona vepretorum Mart. (Annonaceae) is a native tree from Caatinga (Brazilian Northeastern savanna biome), popularly known as "araticum" and "pinha da Caatinga". In this study, we investigated the effects of the crude ethanolic extract (Av-EtOH) in models of pain and inflammation in rodents. METHODS The evaluation of antinociceptive activity was carried out by the acetic acid-indu...

Annona Squamosa L. (annonaceae): Chemical Bioprospection and Biological Activity in Two Phenological Stages

Annona squamosa L. has been recognized by having compounds with important in vitro biological activity against human disease or as insecticide. However, knowledge of the antiviral potential and micro molecules production of A. squamosa L. at different phenological stages is scarce. The secondary metabolites detection and biological activity from seeds and leaves in 4 and 14 years old trees from...