Abstract
Arbuscular mycorrhizal biorememdiation(AMBR)has becoming a promising new remediation technique for contamianated soils by organic pollutants including polycyclic aromatic hydrocarbons. Enzymes play an important role in AMBR process. As reported, arbuscular mycorrhizae can enhance the activity of oxidative enzymes in rhizosphere, which may lead to enhanced dissipation of PAHs in soil. Studies on effects of arbuscular mycorrhizae on enzymes in rhizosphere would be helpful to get a better understanding of AMBR for PAH contaminated soils. In this work, a greenhouse pot experiment was conducted to investigate the impacts of arbuscular mycorrhizal fungi (AMF), Glomus mosseae and Glomus etunicatum as represantatives, on three enzymes in contaminated soils by phenanthrene and pyrene. Hosts were Trifolium repens L. and Lolium multiflorum Lam. Initial concentrations of phenanthrene and pyrene in soils were 203.4 mg·kg-1 and 107.5 mg·kg-1, respectively. It was observed that the activities of polyphenol oxidase, catalase and acid phosphatase enhanced in planted soil. During 20~60 d, polyphenol oxidase in rhizosphere of Trifolium repens L. inoculated by Glomus mosseae and Glomus etunicatum increased 19.6%~72.0% and 29.7%~90.6%, and catalase increased 3.3%~12.2% and 7.8%~34.7%, respectively. In general, phosphatase in rhizosphere of Trifolium repens L. enhanced with inoculation of these two AMFs. Polyphenol oxidase in rhizosphere of Lolium multiflorum Lam. increased 18.0%~ 43.1%, while catalase decreased by inoculation of Glomus mosseae. Acid phosphatase in rhizosphere of Lolium multiflorum Lam, increased at first stages and decreased thereafter with inoculation of Glomus mosseae. Significant difference was observed on the effects of two tested AMFs on acid phosphatase and catalase in rhizosphere of Trifolium repens L. in 30 d. In addition, the influence of AMF on enzymes in soils was related to their host characteristics.
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Claims 10
Claim · model-written summary
Enzyme activities were enhanced in planted soil.
- Taxon
- Trifolium repens L.
Trifolium repense1 - Outcome
- activities of polyphenol oxidase, catalase and acid phosphatasee0
- Direction
- enhancede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“activities of polyphenol oxidase, catalase and acid phosphatase enhanced in planted soil”
e1“Trifolium repens L. and Lolium multiflorum Lam.”
Claim · model-written summary
Glomus mosseae increased polyphenol oxidase in Trifolium rhizosphere by 19.6%~72.0%.
- Taxon
- Trifolium repens L.Trifolium repense0
- Treatment
- inoculated by Glomus mosseaee0
- Interactor
- Glomus mosseae
Funneliformis mosseaee0symbiont - Outcome
- polyphenol oxidase in rhizospheree0
- Direction
- increasede0
- Value
- 19.6%~72.0%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“polyphenol oxidase in rhizosphere of Trifolium repens L. inoculated by Glomus mosseae and Glomus etunicatum increased 19.6%~72.0% and 29.7%~90.6%”
Claim · model-written summary
Glomus etunicatum increased polyphenol oxidase in Trifolium rhizosphere by 29.7%~90.6%.
- Taxon
- Trifolium repens L.Trifolium repense0
- Treatment
- Glomus etunicatume0
- Interactor
- Glomus etunicatume0symbiont
- Outcome
- polyphenol oxidase in rhizospheree0
- Direction
- increasede0
- Value
- 29.7%~90.6%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“polyphenol oxidase in rhizosphere of Trifolium repens L. inoculated by Glomus mosseae and Glomus etunicatum increased 19.6%~72.0% and 29.7%~90.6%”
Claim · model-written summary
Glomus mosseae increased catalase in Trifolium rhizosphere by 3.3%~12.2%.
- Taxon
- Trifolium repens L.Trifolium repense1
- Treatment
- Glomus mosseaee1
- Interactor
- Glomus mosseaeFunneliformis mosseaee1symbiont
- Outcome
- catalasee0
- Direction
- increasede0
- Value
- 3.3%~12.2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“catalase increased 3.3%~12.2% and 7.8%~34.7%”
e1“Trifolium repens L. inoculated by Glomus mosseae and Glomus etunicatum”
Claim · model-written summary
Glomus etunicatum increased catalase in Trifolium rhizosphere by 7.8%~34.7%.
- Taxon
- Trifolium repens L.Trifolium repense1
- Treatment
- Glomus etunicatume1
- Interactor
- Glomus etunicatume1symbiont
- Outcome
- catalasee0
- Direction
- increasede0
- Value
- 7.8%~34.7%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“catalase increased 3.3%~12.2% and 7.8%~34.7%”
e1“Trifolium repens L. inoculated by Glomus mosseae and Glomus etunicatum”
Claim · model-written summary
Mycorrhizal inoculation enhanced phosphatase in Trifolium rhizosphere.
- Taxon
- Trifolium repens L.Trifolium repense0
- Treatment
- inoculation of these two AMFse0
- Interactor
- AMFse0symbiont
- Outcome
- phosphatase in rhizospheree0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“phosphatase in rhizosphere of Trifolium repens L. enhanced with inoculation of these two AMFs”
Claim · model-written summary
Polyphenol oxidase in Lolium rhizosphere increased 18.0%~ 43.1% with Glomus mosseae.
- Taxon
- Lolium multiflorum Lam.
Lolium multiflorume0 - Treatment
- inoculation of Glomus mosseaee0
- Interactor
- Glomus mosseaeFunneliformis mosseaee0symbiont
- Outcome
- Polyphenol oxidase in rhizospheree0
- Direction
- increasede0
- Value
- 18.0%~ 43.1%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Polyphenol oxidase in rhizosphere of Lolium multiflorum Lam. increased 18.0%~ 43.1%, while catalase decreased by inoculation of Glomus mosseae”
Claim · model-written summary
Glomus mosseae decreased catalase in Lolium rhizosphere.
- Taxon
- Lolium multiflorum Lam.Lolium multiflorume0
- Treatment
- inoculation of Glomus mosseaee0
- Interactor
- Glomus mosseaeFunneliformis mosseaee0symbiont
- Outcome
- catalasee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Polyphenol oxidase in rhizosphere of Lolium multiflorum Lam. increased 18.0%~ 43.1%, while catalase decreased by inoculation of Glomus mosseae”
Claim · model-written summary
Glomus mosseae initially increased and later decreased acid phosphatase in Lolium rhizosphere.
- Taxon
- Lolium multiflorum LamLolium multiflorume0
- Treatment
- inoculation of Glomus mosseaee0
- Interactor
- Glomus mosseaeFunneliformis mosseaee0symbiont
- Outcome
- Acid phosphatase in rhizospheree0
- Direction
- increasede0
- Qualifier
- decreased thereaftere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acid phosphatase in rhizosphere of Lolium multiflorum Lam, increased at first stages and decreased thereafter with inoculation of Glomus mosseae”
Claim · model-written summary
The two AMF species differed significantly in their effects on Trifolium acid phosphatase and catalase at 30 d.
- Taxon
- Trifolium repens L.Trifolium repense0
- Interactor
- AMFse0symbiont
- Outcome
- effects of two tested AMFs on acid phosphatase and catalasee0
- Qualifier
- 30 de0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant difference was observed on the effects of two tested AMFs on acid phosphatase and catalase in rhizosphere of Trifolium repens L. in 30 d”
The same questions in other papers
inoculation · physiology: antioxidant enzymes · Trifolium repens (white clover)Positive and negative results
3 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- negative
3 papers more in this group
See all 7 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.