Abstract
Abstract
Background
Native endophytes from maize could play a vital role in plant protection and growth promotion. The present study was undertaken to elucidate the effect of soil types and different maize varieties on culturable endophytic bacterial diversity and to use potential endophytes as biocontrol agents and plant growth promoters.
Results
Based on rpoB and 16S rRNA genes, one hundred seventy-four (174) endophytes distributed into twenty-five (25) genera were identified, in which the greatest number of isolates were classified into Bacillus (52.30%), followed by Streptomyces (13.22%), Paenibacillus (6.32%), and Pseudomonas (4.60%). Out of the total isolated strains, endophytic strains with total number thirteen (13), eighty-four (84), one hundred and five (105), and nine (9) were able to fix nitrogen, and solubilize calcium phosphate, calcium phytate, and potassium, respectively. Moreover, out of total endophytes; twenty-four (24), thirty-three (33) and twenty-one (21) endophytic strains displayed marked antagonistic effects against important fungal pathogens such as Fusarium graminearum, Rhizoctonia solani and Exserohilum turcicum, respectively.
Conclusions
Soil types play a functional role in culturable endophyte diversity and provide an isolation reference for endophytic reserves with multiple functions such as growth promoters and biocontrol agents.
Funder
Breeding and industrialization demonstration of green and efficient new maize varieties
Maize Production System of Yunnan Province, China
Publisher
Springer Science and Business Media LLC
Subject
Insect Science,Plant Science,Agronomy and Crop Science,Ecology
Cited by
3 articles.
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