ANTIBACTERIAL ACTIVITIES OF PENTACLETHRA MACROPHYLLA AND SYZYGIUM SAMARANGENSE AGAINST OPPORTUNISTIC BACTERIA PATHOGENS

In this study, Pentaclethra macrophylla and Syzygium samarangense leaves was tested for their antibacterial activities against selected opportunistic bacterial strains. The crude extracts of the plants were extracted using methanol and fractionated into hexane, ethyl acetate and aqueous fractions. The antibacterial activity of the leaves against B. subtilis (ATCC® 6633™), S. aureus (ATCC® 25923™), E. coli (ATCC® 25922™), P. aeruginosa (ATCC® 9027™) was performed using the agar well diffusion technique at 20mg/ml extracts fractions. All plants extracts extract exhibited some antibacterial activity against at least one bacterial strain. P. macrophylla exhibited the highest inhibition against E. coli (25mm) compared to B. subtilis, S. aureus and P. aeruginosa. Similar observation was noted for S. samarangense where the highest inhibition was against E. coli (22mm). In conclusion, P. macrophylla and S. samaragense exhibited antibacterial activities against the selected bacteria. The ethyl acetate and aqueous extracts of both plants had the highest antibacterial activities. This indicates that P. macrophylla and S. samrangense leaves could be a source of antibacterial agent in overcoming antibacterial drug resistance

Intra-specific genetic variability dataset on rbcL gene in Moringa oleifera Lam. (Moringaceae) in Nigeria

Moringa oleifera is an underutilized perennial tree and is widely cultivated and studied due to its multi-purpose uses. Currently, not much information exists about the rbcL (Ribulose-1,5-bisphosphate carboxylase/oxygenase large subunit) gene sequence in M. oleifera. The rbcL gene is a conserved chloroplast gene and hence can be used for phylogenetic studies of plants at higher and lower taxonomic levels. The data consists of twenty-two rbcL gene sequences, nucleotide, and amino acid compositions of M. oleifera collected from sixteen states across Nigeria. The data offers an understanding of the genetic diversity and evolution of the species, which are crucial for both scientists and breeders working on the crop as well as for attempts to conserve the species

rbcL gene dataset on intra-specific genetic variability and phylogenetic relationship of Crassocephalum crepidioides (Benth) S. Moore. (Asteraceae) in Nigeria

Crassocephalum crepidioides (Benth) S. Moore (Asteraceae) commonly called “thickhead” is underutilised, indigenous to the rainforest of West and Central Africa but has also been introduced and naturalised throughout tropical and sub-tropical Asia, Australia, Tonga and Samoa. The species is an important medicinal and leafy vegetable endemic to the South-western region of Nigeria. Its cultivation, utilisation and local knowledge base could be stronger than the mainstream vegetables. Genetic diversity is uninvestigated for breeding and conservation purposes. The dataset consists of partial rbcL gene sequences, amino acid profiles and nucleotide compositions for 22 accessions of C. crepidioides. The dataset provides information on the species distribution (Nigeria), genetic diversity and evolution. The sequence information is integral for developing specific DNA markers for breeding and conservation purposes