Bioassessment of Phylogenetic Relatedness and Plant Growth Enhancement of Endophytic Bacterial Isolates from Cowpea (Vigna unguiculata) Plant Tissues

Cowpea is of great importance to people in most tropical countries of the world. It is the preeminent indigenous African legume and a frontline option for meeting the nutritional protein demands of people and livestock. The use of an eco-friendly alternative to synthetic fertilizers and agro-pestici...

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Bibliographic Details
Published in:Horticulturae 2023-03, Vol.9 (3), p.332
Main Authors: Omomowo, Olawale Israel, Babalola, Olubukola Oluranti
Format: Article
Language:English
Subjects:
Agricultural production
Agrochemicals
agroecological
Bacteria
bacterial endophytes
Bioinformatics
bioinoculants
Bioprospecting
Cowpea
cowpea productivity
Cowpeas
Endophytes
Environmental aspects
Fertilizers
Genes
Germination
Growth
Identification and classification
Legumes
Livestock
Metabolites
Microbiota
Pathogens
Pesticides
Phylogenetics
Phylogeny
Physiological aspects
Plant growth
Plant tissues
Productivity
protein demands
RNA sequencing
rRNA 16S
Seed germination
Seeds
Strains (organisms)
Sustainability
Vigna unguiculata
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Summary:Cowpea is of great importance to people in most tropical countries of the world. It is the preeminent indigenous African legume and a frontline option for meeting the nutritional protein demands of people and livestock. The use of an eco-friendly alternative to synthetic fertilizers and agro-pesticides has, in recent times, become an attractive research theme. Therefore, bioprospecting for effective endophytic bacteria isolates as potential bioinoculants for enhancing cowpea productivity makes this research a priority. In this study, cowpea tissues were used to isolate and characterize endophytic bacterial strains through morpho-genotypic techniques and then assessed for their in vitro growth promotion, as well as their in planta growth potential in chamber experiments. In all, 33 endophytic bacterial strains were authenticated by sequencing the 16S rRNA and through further bioinformatics analysis. Also, plant-growth promoting (PGP) genes and seed germination percentage improvements were confirmed in the endophytic bacteria isolates. The research findings highlight that the bacterial strains are molecularly diverse and some of the authenticated endophytic bacteria isolates are potential bioinoculants that can be applied in further studies to improve the agronomic productivity of cowpea plant.
ISSN:2311-7524
2311-7524
DOI:10.3390/horticulturae9030332