A Potential Application of Endophytic Bacteria in Strawberry Production

Endophytic bacteria could be used as a tool to promote plant growth, enhance abiotic stress tolerance, and inhibit plant pathogen growth. More than 100 bacteria, previously tested to have biocontrol activity against fungal pathogens from our lab, were chosen for pathogen inhibition in vitro with ant...

Full description

Saved in:
Bibliographic Details
Published in:Horticulturae 2021-11, Vol.7 (11), p.504
Main Authors: Mei, Chuansheng, Amaradasa, B. Sajeewa, Chretien, Robert L., Liu, Danyang, Snead, George, Samtani, Jayesh B., Lowman, Scott
Format: Article
Language:English
Subjects:
Antibiosis
Antibiotics
Bacillus velezensis
Bacteria
Biological control
Crop yield
Disease
Endophytes
endophytic bacteria
Experiments
field trials
Fruits
Genomes
Greenhouses
Growing season
Inoculation
Nitrogen
Pathogens
Plant growth
Strawberries
strawberry
Surfactin
Testing laboratories
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Endophytic bacteria could be used as a tool to promote plant growth, enhance abiotic stress tolerance, and inhibit plant pathogen growth. More than 100 bacteria, previously tested to have biocontrol activity against fungal pathogens from our lab, were chosen for pathogen inhibition in vitro with antibiosis assays against strawberry specific pathogens. Three potential endophytic bacteria were tested in the greenhouse for disease reduction and growth performance. Finally, field trials were conducted for fruit yield production. Our results showed that three endophytic bacteria significantly inhibited the growth of the strawberry pathogen Colletotrichum gloeosporioides from antibiosis assays and were identified as Bacillus velezensis strains IALR308, IALR585, and IALR619. Inoculation of these bacteria significantly reduced strawberry disease in greenhouse conditions with pathogen infection. Field trials showed that IALR619 has potential to influence marketable fruit yield when strawberry plants were inoculated twice over the growing season. All three bacteria had the ability to produce auxin and to solubilize phosphate. The antibiotics surfactin and iturin were also detected in IALR585 and IALR619. In conclusion, Bacillus velezensis IALR619 has potential inhibition of strawberry pathogen growth in the greenhouse and possible ability to increase marketable fruit yield in the field.
ISSN:2311-7524
2311-7524
DOI:10.3390/horticulturae7110504