The efficiency of earthworms and rhizobacteria on mycorrhizal symbiosis and growth of three plant species in a soil contaminated with Lead (Pb) metal

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

Mahohi A.; RAIESI F.

Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Journal of Water and Soil Conservation Year:2018 | Volume:25 | Issue:3 Page(s): 97-112

Download Full-Text

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Persian Verion

View:

532

Download:

Cites:

Information Journal Paper

Title

The efficiency of earthworms and rhizobacteria on mycorrhizal symbiosis and growth of three plant species in a soil contaminated with Lead (Pb) metal

Author(s)

Mahohi A. | RAIESI F. | Issue Writer Certificate

Keywords

AM fungiQ1

EarthwormsQ2

RhizobacteriaQ1

Root colonizationQ2

Abstract

Background and Objectives: Lead (Pb) is considered to be particularly toxic and responsible for significant decreases in biological activities in soils. Phytoremediation is an emerging and low-cost technology that utilizes plants to remove, transform, or stabilize contaminants located in water, sediments, or soils. The success of phytoremediation depends on the interactions between rhizosphere macro and microorganisms and plant roots. Among these organisms, the role of Earthworms, mycorrhizal fungi, and plant growth promoters' Rhizobacteria have been considered. In this study, we have evaluated and compared the combined effects of Earthworms and bacteria on Root colonization and plant growth in a contaminated soil. Materials and Methods: Three plant species seeds (Zea mays (maize); Cynodon dactylon (bermudagrass) and Stachys inflata), after surface-sterilization and germination were transplanted into each plastic pot contained 4 kg of contaminated soil (collected from bama mining area located in the southwest of Isfahan) that already autoclaved at 121 oC for 2 h. A completely randomized design with 2×2×2 factorial treatment combination was used with the following factors: with or without earthworm treatments (Eisenia foetida), with or without arbuscular mycorrhizal (AM) fungal treatments and with or without Rhizobacteria. After about three (bermudagrass and maize) and four (Stachys inflata) month growth in greenhouse condition, plant shoots were harvested. Pb and phosphorus (P) concentration, Root colonization, spore abundance and root colonized length were determined. Results: In general, inoculation of these organisms differently affected Root colonization, spore abundance, soil phosphorus (P) availability and plant growth, and showed variable results depending upon plant species and soil organisms involved. The significant and negative correlations between soil P availability and Root colonization for all the plants (maize: r=-0. 48, P<0. 05; bermudagrass: r=-0. 74, P<0. 001 and Stachys inflata: r=-0. 65, P<0. 01) suggests that the increased P availability would mainly be responsible for the decreases of Root colonization in the presence of Earthworms or Rhizobacteria. But the negative correlation between available Pb and colonization only showed in C. dactylon and demonstrated that the negative effects of Pb on mycorrhizal symbiosis depends on plant sensitivity on the toxicity of Pb. Furthermore, among all mycorrhizal symbiosis determined in this study, the spore abundance had a lower change between co-inoculation. The correlations between spore abundance and Root colonization were also different for the three plant species (maize: ns; bermudagrass: r=-0. 76, P<0. 001 and S. inflata: r=-0. 67, P<0. 01), showing that spore abundance could not be a suitable index for mycorrhizal dependency, and that it depends on plant species and soil organisms considered. Conclusion: This study showed that increasing the availability of soil P and Pb could be one of the decrease factors in Root colonization, but the negative Pb effects depend on plant sensitivity. Furthermore, Root colonization may not alone be a suitable index for plant growth and could be different with plant species and soil P or Pb concentrations. Furthermore, the relationship between plant growth and mycorrhizal symbiosis was higher in plant sensitive to Pb toxicity.

Cites

No record.

References

No record.

Cite

APA: Copy

Mahohi, A., & RAIESI, F.. (2018). The efficiency of earthworms and rhizobacteria on mycorrhizal symbiosis and growth of three plant species in a soil contaminated with Lead (Pb) metal. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), 25(3 ), 97-112. SID. https://sid.ir/paper/156118/en

Vancouver: Copy

Mahohi A., RAIESI F.. The efficiency of earthworms and rhizobacteria on mycorrhizal symbiosis and growth of three plant species in a soil contaminated with Lead (Pb) metal. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES)[Internet]. 2018;25(3 ):97-112. Available from: https://sid.ir/paper/156118/en

IEEE: Copy

A. Mahohi, and F. RAIESI, “The efficiency of earthworms and rhizobacteria on mycorrhizal symbiosis and growth of three plant species in a soil contaminated with Lead (Pb) metal,” JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), vol. 25, no. 3 , pp. 97–112, 2018, [Online]. Available: https://sid.ir/paper/156118/en

Related Journal Papers