An increment in the Duranta repens L. (Verbenaceae) knowledge: DNA content, karyology, meiosis and palynology

Abstract

Meiotic behavior, pollen morphology, interphasic nucleus pattern and karyotype description for Duranta repens (Verbenaceae) are presented. The species had semi-reticulate interphasic nucleus and in mitotic metaphase, chromosome number was 2n = 34 (32 m + 2 sm), with secondary constriction in one chromosome pair. Additionally to the A complement, we observed B chromosomes, varying to 0-3 in some cells of several individuals. Meiotic behavior was regular and pollen grains were isopolar and tricolporate, being classifi ed as prolate-spheroidal with psilate-perfurate exine ornamentation.

Aqueous Leaf Extract of Duranta repens Promotes Seed Germination and Seedling Growth of Salinity-Stressed Solanum lycopersicum Seedlings.

“…It belongs to the family Verbenaceae and it is distributed throughout Mexico, South America and the Antilles (Whistler, 2000). It is widely cultivated as an ornamental plant in tropical and subtropical gardens around the world (Sousa et al, 2011) and also exhibits potentials as therapeutic agent (Johnson et al, 2018). Studies have reported the plant's antioxidant (Dressler et al, 2014), antifungal (Sharma et al, 2012), antibacterial (Ogbuagu et al, 2015) and antimalarial (Majunatha et al, 2013) activities.…”