期刊
HORTICULTURAE
卷 9, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/horticulturae9030332
关键词
bacterial endophytes; bioinoculants; cowpea productivity; agroecological; protein demands; legumes; biodiversity; sustainability
类别
Cowpea is an important crop in tropical countries, particularly in Africa, for meeting protein demands. Bioprospecting for endophytic bacteria isolates as bioinoculants to enhance cowpea productivity has become a research priority. This study isolated and characterized endophytic bacterial strains and confirmed their growth promotion and seed germination improvement potential.
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.
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