Abstract
Taking the Chinese onion cultivars with different allelopathy potentials as the donor and cucumber as the accepter, this paper studied the effects of Chinese onion' s root exudates on the seedlings growth of cucumber and the culturable microbial number and bacterial community structure in the seedlings rhizosphere soil. The root exudates of the Chinese onion cultivars could promote the growth of cucumber seedlings, and the stimulatory effect increased with the increasing concentration of the root exudates. However, at the same concentrations of root exudates, the stimulatory effect had no significant differences between the Chinese onion cultivars with strong and weak allelopathy potential. The root exudates of the Chinese onion cultivars increased the individual numbers of bacteria and actinomyces but decreased those of fungi and Fusarium in rhizosphere soil, being more significant for the Chinese onion cultivar with high allelopathy potential (L-06). The root exudates of the Chinese onion cultivars also increased the bacterial community diversity in rhizosphere soil. The cloning and sequencing results indicated that the differential bacteria bands were affiliated with Actinobacteria, Proteobacteria, and Anaerolineaceae, and Anaerolineaceae only occurred in the rhizosphere soil in the treatment of high allelopathy potential Chinese onion (L-06). It was suggested that high concentration (10 mL per plant) of root exudates from high allelopathy potential Chinese onion (L-06) could benefit the increase of bacterial community diversity in cucumber seedlings rhizosphere soil.
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Claims 12
Claim · model-written summary
Chinese onion cultivar root exudates promoted cucumber seedling growth.
- Taxon
- cucumber
Cucumis sativuse0 - Treatment
- root exudates of the Chinese onion cultivarse0
- Interactor
- Chinese onione0other
- Outcome
- growth of cucumber seedlingse0
- Direction
- promotee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The root exudates of the Chinese onion cultivars could promote the growth of cucumber seedlings”
Claim · model-written summary
The growth stimulation increased with root exudate concentration.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- root exudatese0
- Interactor
- Chinese onione0other
- Outcome
- stimulatory effecte0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The root exudates of the Chinese onion cultivars could promote the growth of cucumber seedlings, and the stimulatory effect increased with the increasing concentration of the root exudates.”
Claim · model-written summary
At equal exudate concentrations, growth stimulation did not differ significantly between strong and weak allelopathic onion cultivars.
- Taxon
- cucumberCucumis sativust0
- Treatment
- root exudatese0
- Interactor
- Chinese onione0other
- Outcome
- stimulatory effecte0
- Direction
- no significant differencese0
- Qualifier
- at the same concentrationse0
- Comparator
- Chinese onion cultivars with strong and weak allelopathy potentiale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, at the same concentrations of root exudates, the stimulatory effect had no significant differences between the Chinese onion cultivars with strong and weak allelopathy potential.”
t0“cucumber”
Claim · model-written summary
Onion root exudates increased rhizosphere bacterial numbers, with a more significant effect for L-06.
- Treatment
- root exudates of the Chinese onion cultivarse0
- Interactor
- Chinese onione0other
- Outcome
- individual numbers of bacteriae0
- Direction
- increasede0
- Qualifier
- being more significant for the Chinese onion cultivar with high allelopathy potential (L-06)e0
Not reportedComparator
Verbatim
e0“The root exudates of the Chinese onion cultivars increased the individual numbers of bacteria and actinomyces but decreased those of fungi and Fusarium in rhizosphere soil, being more significant for the Chinese onion cultivar with high allelopathy potential (L-06).”
Claim · model-written summary
Onion root exudates increased actinomyces numbers, with a more significant effect for L-06.
- Taxon
- actinomyces
Actinomycese0 - Treatment
- root exudates of the Chinese onion cultivarse0
- Interactor
- Chinese onione0other
- Outcome
- individual numberse0
- Direction
- increasede0
- Qualifier
- being more significant for the Chinese onion cultivar with high allelopathy potential (L-06)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The root exudates of the Chinese onion cultivars increased the individual numbers of bacteria and actinomyces but decreased those of fungi and Fusarium in rhizosphere soil, being more significant for the Chinese onion cultivar with high allelopathy potential (L-06).”
Claim · model-written summary
Onion exudates decreased rhizosphere fungi numbers, particularly for L-06.
- Treatment
- root exudates of the Chinese onion cultivarse0
- Interactor
- Chinese onione0other
- Outcome
- individual numberse0
- Direction
- decreasede0
- Qualifier
- being more significant for the Chinese onion cultivar with high allelopathy potential (L-06)e0
Not reportedComparator
Verbatim
e0“The root exudates of the Chinese onion cultivars increased the individual numbers of bacteria and actinomyces but decreased those of fungi and Fusarium in rhizosphere soil, being more significant for the Chinese onion cultivar with high allelopathy potential (L-06).”
Claim · model-written summary
Onion exudates decreased rhizosphere Fusarium numbers, particularly for L-06.
- Treatment
- root exudates of the Chinese onion cultivarse0
- Second interactor
- Chinese onione0other
- Outcome
- individual numberse0
- Direction
- decreasede0
- Qualifier
- being more significant for the Chinese onion cultivar with high allelopathy potential (L-06)e0
FusariumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The root exudates of the Chinese onion cultivars increased the individual numbers of bacteria and actinomyces but decreased those of fungi and Fusarium in rhizosphere soil, being more significant for the Chinese onion cultivar with high allelopathy potential (L-06).”
Claim · model-written summary
Onion root exudates increased cucumber rhizosphere bacterial diversity.
- Taxon
- cucumberCucumis sativust0
- Treatment
- root exudates of the Chinese onion cultivarse0
- Interactor
- Chinese onione0other
- Outcome
- bacterial community diversitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The root exudates of the Chinese onion cultivars also increased the bacterial community diversity in rhizosphere soil.”
t0“cucumber”
Claim · model-written summary
Differential bacterial bands included Actinobacteria.
- Taxon
- ActinobacteriaActinomycetotae0
- Outcome
- differential bacteria bands were affiliated with Actinobacteriae0
Not reportedDirection
Verbatim
e0“The cloning and sequencing results indicated that the differential bacteria bands were affiliated with Actinobacteria, Proteobacteria, and Anaerolineaceae”
Claim · model-written summary
Differential bacterial bands included Proteobacteria.
- Taxon
- ProteobacteriaPseudomonadotae0
- Outcome
- differential bacteria bandse0
Not reportedDirection
Verbatim
e0“The cloning and sequencing results indicated that the differential bacteria bands were affiliated with Actinobacteria, Proteobacteria, and Anaerolineaceae”
Claim · model-written summary
Differential bacterial bands included Anaerolineaceae, found only with L-06 treatment.
- Taxon
- AnaerolineaceaeAnaerolineaceaee0
- Treatment
- treatment of high allelopathy potential Chinese onion (L-06)e0
- Interactor
- Chinese onione0other
- Outcome
- only occurred in the rhizosphere soile0
Not reportedDirection
Verbatim
e0“Anaerolineaceae only occurred in the rhizosphere soil in the treatment of high allelopathy potential Chinese onion (L-06).”
Claim · model-written summary
The authors suggest 10 mL per plant L-06 exudates to increase cucumber rhizosphere bacterial diversity.
- Taxon
- cucumberCucumis sativuse0
- Interactor
- Chinese onione0other
- Outcome
- high concentration (10 mL per plant) of root exudates from high allelopathy potential Chinese onion (L-06)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was suggested that high concentration (10 mL per plant) of root exudates from high allelopathy potential Chinese onion (L-06) could benefit the increase of bacterial community diversity in cucumber seedlings rhizosphere soil.”
The same questions in other papers
Allium cepa · soil: biology · Cucumis sativus (cucumber)Results agree
1 paper in the same direction as this paper
- positive
Allium cepa · growth · Cucumis sativus (cucumber)Results agree
1 paper in the same direction as this paper
- positive
allelopathy · growth · Cucumis sativus (cucumber)Positive and negative results
3 papers in the same direction as this paper · 7 in the opposite direction
- negative
- negative
- negative
7 papers more in this group
See all 11 papers →allelopathy · soil: biology · Cucumis sativus (cucumber)Results agree
1 paper in the same direction as this paper
- positive
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.