A polarized division occurs normally in the development of microspores in plants. The result is a presumptive vegetative cell and generative cell within the young pollen grain. The generative nucleus in Tradescantia synthesizes DNA and considerably later, in the pollen tube, it divides to form two sperm nuclei. The vegetative nucleus probably degenerates in the pollen tube. In Tradescantia, it ...

1. The quantum yield of oxygen liberation by spinach and Tradescantia chloroplasts suspended in solutions containing ferric oxalate and potassium ferricyanide varied from 0.013 to 0.080. 2. It was concluded that the nature of this oxygen liberation reaction is not fundamentally different from the formation of oxygen in normal photosynthesis, with respect to its light efficiency.

Alien invasive species (AIS) and non-native are a prominent extended problem in wide range of areas Europe around the world. Centered Umia’s riparian forest, Galicia, we found at least three main AIS needing to be controlled harvested preserve biodiversity area. Previous studies probed that leaves bark selected species—Tradescantia fluminensis, Arundo donax, Eucalyptus globulus—have important a...

HIGHLIGHTS Tradescantia pallida has shown promising antibacterial, antioxidant and anticancer activities. Botanical extract products are environmentally friendly, inexpensive may reduce losses by discouraging pathogen growth. HE-TP was highly active in vitro assays against P. digitatum, S. sclerotiorum R. stolonifer. demonstrated cytotoxic activity different human tumor cell lines. The major co...