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Soil microorganisms alleviate the allelopathic effect of Eucalyptus grandis × E. urophylla leachates on Brassica chinensis
- Source :
- Journal of Forestry Research. 28:1203-1207
- Publication Year :
- 2017
- Publisher :
- Springer Science and Business Media LLC, 2017.
-
Abstract
- Soil microbes may be critical players in determining the allelopathic potential of some plants. Low levels of plant community biodiversity in Eucalyptus plantations have been attributed to the allelopathic potential of these tree species. The role of soil microbes in the allelopathic effect of leaf leachates of the hybrid tree Eucalyptus grandis × E. urophylla, was tested in Petri dish assays with Brassica chinensis as a receiver plant. Soils were collected from either a local garden (soil A) or a Eucalyptus plantation (soil B) and half of each soil was sterilized to remove microbes. These soils were then treated with E. grandis × E. urophylla leachates for 0–72 h. Seed germination of B. chinensis was significantly inhibited in soils treated with leaf leachates relative to untreated soils. The inhibitory effect of the leaf leachates was more pronounced in sterilized soils. Total phenolic content was obvious lower in nonsterile leachate-treated soils than in sterile soils. Biomass of B. chinensis was negatively correlated with the total phenolic content in soils. Our findings suggest that soil microbes can alleviate the allelopathic potential of Eucalyptus and thereby its negative impact on plant growth.
- Subjects :
- 0106 biological sciences
biology
Microorganism
fungi
Brassica
food and beverages
Biomass
Forestry
Plant community
biology.organism_classification
complex mixtures
010603 evolutionary biology
01 natural sciences
Eucalyptus
Horticulture
Germination
Soil water
Botany
Allelopathy
010606 plant biology & botany
Subjects
Details
- ISSN :
- 19930607 and 1007662X
- Volume :
- 28
- Database :
- OpenAIRE
- Journal :
- Journal of Forestry Research
- Accession number :
- edsair.doi...........ab00ea66344c1673b87b2a17115c2ff2