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Effects of inoculation of PAH-degrading bacteria and arbuscular mycorrhizal fungi on responses of ryegrass to phenanthrene and pyrene.
Int J Phytoremediation. 2014; 16(2):109-22.IJ

Abstract

In order to investigate the effects of soil microorganisms on biochemical and physiological response of plants to PAHs, PAH-degrading bacteria (Acinetobacter sp.) and/or arbuscular mycorrhizal fungus (Glomus mosseae) were inoculated with ryegrass (Lolium multiflorum) under four different concentrations of phenanthrene and pyrene (0, 50 + 50, 100 + 100, 200 + 200 mg kg(-1)) in soils. Acinetobacter sp. played limited roles on the growth of ryegrass, chlorophyll content, water soluble carbohydrate content, malondialdehyde (MDA) content, activities of superoxide dismutase (SOD) and peroxidase (POD) in shoot. By contrast, G. mosseae significantly (P < 0.01) increased ryegrass growth, partially by improving the photosynthetic activity through increasing the chlorophyll content in shoot. G. mosseae also significantly decreased MDA content in shoot. However, G. mosseae significantly increased SOD activity in shoot, which seemed to be resulted from significantly higher pyrene concentrations in shoot. The present study suggested that AM fungi could reduce the damage of cell membranes caused by free radicals, which may be one of the mechanisms involved in mycorrhizal alleviation of plant stress under PAHs. The present study indicated that the dual inoculation was superior to single inoculation in remediating PAHs contaminated soils.

Authors

Wu F
No affiliation info available
Yu X
No affiliation info available
Wu S
No affiliation info available
Wong M
No affiliation info available

MeSH

AcinetobacterAntioxidantsBiodegradation, EnvironmentalCarbohydratesChlorophyllGlomeromycotaLoliumMalondialdehydeMycorrhizaePhenanthrenesPlant RootsPlant ShootsPolycyclic Aromatic HydrocarbonsPyrenesSoilStress, PhysiologicalWater

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24912204

Citation

Wu, Fuyong, et al. "Effects of Inoculation of PAH-degrading Bacteria and Arbuscular Mycorrhizal Fungi On Responses of Ryegrass to Phenanthrene and Pyrene." International Journal of Phytoremediation, vol. 16, no. 2, 2014, pp. 109-22.
Wu F, Yu X, Wu S, et al. Effects of inoculation of PAH-degrading bacteria and arbuscular mycorrhizal fungi on responses of ryegrass to phenanthrene and pyrene. Int J Phytoremediation. 2014;16(2):109-22.
Wu, F., Yu, X., Wu, S., & Wong, M. (2014). Effects of inoculation of PAH-degrading bacteria and arbuscular mycorrhizal fungi on responses of ryegrass to phenanthrene and pyrene. International Journal of Phytoremediation, 16(2), 109-22.
Wu F, et al. Effects of Inoculation of PAH-degrading Bacteria and Arbuscular Mycorrhizal Fungi On Responses of Ryegrass to Phenanthrene and Pyrene. Int J Phytoremediation. 2014;16(2):109-22. PubMed PMID: 24912204.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of inoculation of PAH-degrading bacteria and arbuscular mycorrhizal fungi on responses of ryegrass to phenanthrene and pyrene. AU - Wu,Fuyong, AU - Yu,Xiezhi, AU - Wu,Shengchun, AU - Wong,Minghung, PY - 2014/6/11/entrez PY - 2014/6/11/pubmed PY - 2014/7/11/medline SP - 109 EP - 22 JF - International journal of phytoremediation JO - Int J Phytoremediation VL - 16 IS - 2 N2 - In order to investigate the effects of soil microorganisms on biochemical and physiological response of plants to PAHs, PAH-degrading bacteria (Acinetobacter sp.) and/or arbuscular mycorrhizal fungus (Glomus mosseae) were inoculated with ryegrass (Lolium multiflorum) under four different concentrations of phenanthrene and pyrene (0, 50 + 50, 100 + 100, 200 + 200 mg kg(-1)) in soils. Acinetobacter sp. played limited roles on the growth of ryegrass, chlorophyll content, water soluble carbohydrate content, malondialdehyde (MDA) content, activities of superoxide dismutase (SOD) and peroxidase (POD) in shoot. By contrast, G. mosseae significantly (P < 0.01) increased ryegrass growth, partially by improving the photosynthetic activity through increasing the chlorophyll content in shoot. G. mosseae also significantly decreased MDA content in shoot. However, G. mosseae significantly increased SOD activity in shoot, which seemed to be resulted from significantly higher pyrene concentrations in shoot. The present study suggested that AM fungi could reduce the damage of cell membranes caused by free radicals, which may be one of the mechanisms involved in mycorrhizal alleviation of plant stress under PAHs. The present study indicated that the dual inoculation was superior to single inoculation in remediating PAHs contaminated soils. SN - 1522-6514 UR - https://www.unboundmedicine.com/medline/citation/24912204/Effects_of_inoculation_of_PAH_degrading_bacteria_and_arbuscular_mycorrhizal_fungi_on_responses_of_ryegrass_to_phenanthrene_and_pyrene_ DB - PRIME DP - Unbound Medicine ER -