Abstract
The rhizosphere is a biologically active zone in the soil around the roots of plants. Rootmicroorganism interaction in the rhizosphere can be both beneficial to the plant, the microorganisms or to neither of them. Which factors affect the interactions between plants and microorganisms within this crowded rhizosphere? In order to investigate their interaction, contrasted tests were carried out. The plants across the nitrogen gradient were incubated with and without microorganisms. Results showed that nitrogen might play an active role in rootmicroorganism communication, and thus have an important effect on plant growth. With no nitrogen nutrient medium, microorganisms did not affect the plants growth obviously and the statistical interaction intensity of plant-microorganism approached zero. However, with a low level of nitrogen nutrient medium and an optimal nitrogen nutrient medium, plant biomass in sterile soil was more than plant biomass in non-sterile soil. The interaction intensity of plantmicroorganism appeared negative. With a high level of nitrogen nutrient medium, plants grown in a non-sterile soil had better growth than plants grown in sterile soil. The interaction intensity of plant-microorganism appeared positive. Additionally, plant growth significantly increased the microorganism biomass both in the sterile soil and non-sterile soil.
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Claims 4
Claim · model-written summary
Without nitrogen, microorganisms did not obviously affect plant growth.
- Taxon
- plantsViridiplantaee0
- Treatment
- microorganismse0
- Interactor
- microorganismse0symbiont
- Outcome
- plants growthe0
- Direction
- did not affecte0
Not reportedComparator
Verbatim
e0“With no nitrogen nutrient medium, microorganisms did not affect the plants growth obviously”
Claim · model-written summary
At low or optimal nitrogen levels, plant biomass was greater in sterile than non-sterile soil.
Verbatim
e0“with a low level of nitrogen nutrient medium and an optimal nitrogen nutrient medium, plant biomass in sterile soil was more than plant biomass in non-sterile soil.”
Claim · model-written summary
At high nitrogen levels, plants grew better in non-sterile than sterile soil.
Verbatim
e0“With a high level of nitrogen nutrient medium, plants grown in a non-sterile soil had better growth than plants grown in sterile soil.”
Claim · model-written summary
Plant growth significantly increased microorganism biomass in both sterile and non-sterile soil.
Verbatim
e0“plant growth significantly increased the microorganism biomass both in the sterile soil and non-sterile soil.”
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inoculation · growth · Viridiplantae (plants)Positive and negative results
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See all 46 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.