Item request has been placed!
×
Item request cannot be made.
×
![loading](/sites/all/modules/hf_eds/images/loading.gif)
Processing Request
Dynamic changes of rhizosphere soil bacterial community and nutrients in cadmium polluted soils with soybean-corn intercropping.
Item request has been placed!
×
Item request cannot be made.
×
![loading](/sites/all/modules/hf_eds/images/loading.gif)
Processing Request
- معلومة اضافية
- المصدر:
Publisher: BioMed Central Country of Publication: England NLM ID: 100966981 Publication Model: Electronic Cited Medium: Internet ISSN: 1471-2180 (Electronic) Linking ISSN: 14712180 NLM ISO Abbreviation: BMC Microbiol Subsets: MEDLINE
- بيانات النشر:
Original Publication: London : BioMed Central, [2001-
- الموضوع:
- نبذة مختصرة :
Background: Soybean-corn intercropping is widely practised by farmers in Southwest China. Although rhizosphere microorganisms are important in nutrient cycling processes, the differences in rhizosphere microbial communities between intercropped soybean and corn and their monoculture are poorly known. Additionally, the effects of cadmium (Cd) pollution on these differences have not been examined. Therefore, a field experiment was conducted in Cd-polluted soil to determine the effects of monocultures and soybean-corn intercropping systems on Cd concentrations in plants, on rhizosphere bacterial communities, soil nutrients and Cd availability. Plants and soils were examined five times in the growing season, and Illumina sequencing of 16S rRNA genes was used to analyze the rhizosphere bacterial communities.
Results: Intercropping did not alter Cd concentrations in corn and soybean, but changed soil available Cd (ACd) concentrations and caused different effects in the rhizosphere soils of the two crop species. However, there was little difference in bacterial community diversity for the same crop species under the two planting modes. Proteobacteria, Chloroflexi, Acidobacteria, Actinobacteria and Firmicutes were the dominant phyla in the soybean and corn rhizospheres. In ecological networks of bacterial communities, intercropping soybean (IS) had more module hubs and connectors, whereas intercropped corn (IC) had fewer module hubs and connectors than those of corresponding monoculture crops. Soil organic matter (SOM) was the key factor affecting soybean rhizosphere bacterial communities, whereas available nutrients (N, P, K) were the key factors affecting those in corn rhizosphere. During the cropping season, the concentration of soil available phosphorus (AP) in the intercropped soybean-corn was significantly higher than that in corresponding monocultures. In addition, the soil available potassium (AK) concentration was higher in intercropped soybean than that in monocropped soybean.
Conclusions: Intercropped soybean-corn lead to an increase in the AP concentration during the growing season, and although crop absorption of Cd was not affected in the Cd-contaminated soil, soil ACd concentration was affected. Intercropped soybean-corn also affected the soil physicochemical properties and rhizosphere bacterial community structure. Thus, intercropped soybean-corn was a key factor in determining changes in microbial community composition and networks. These results provide a basic ecological framework for soil microbial function in Cd-contaminated soil.
(© 2022. The Author(s).)
- References:
Mol Ecol. 2017 Nov;26(21):6170-6182. (PMID: 28926148)
Environ Pollut. 2021 Jul 1;280:116965. (PMID: 33774546)
Environ Sci Pollut Res Int. 2018 Sep;25(27):27439-27450. (PMID: 30039491)
J Hazard Mater. 2018 Jul 5;353:142-150. (PMID: 29660700)
Chemosphere. 2021 May;271:129536. (PMID: 33445027)
Int J Phytoremediation. 2019;21(1):4-13. (PMID: 30638050)
Int J Mol Sci. 2018 Feb 22;19(2):. (PMID: 29470429)
mBio. 2010 Oct 05;1(4):. (PMID: 20941329)
New Phytol. 2015 Sep;207(4):1134-44. (PMID: 25898906)
Toxicol Rep. 2020 Jul 23;7:893-899. (PMID: 32742937)
Nat Methods. 2010 May;7(5):335-6. (PMID: 20383131)
Sci Total Environ. 2018 Feb 15;615:767-772. (PMID: 28992501)
Trends Plant Sci. 2017 Aug;22(8):661-673. (PMID: 28601419)
Annu Rev Microbiol. 1965;19:241-66. (PMID: 5318440)
Int J Phytoremediation. 2016 Oct 2;18(10):1014-21. (PMID: 27159531)
Chemosphere. 2019 Apr;220:237-248. (PMID: 30584955)
ISME J. 2012 Feb;6(2):330-42. (PMID: 21881616)
FEMS Microbiol Rev. 2013 Sep;37(5):634-63. (PMID: 23790204)
Nat Methods. 2013 Oct;10(10):996-8. (PMID: 23955772)
PLoS One. 2017 Sep 14;12(9):e0184503. (PMID: 28910355)
Front Plant Sci. 2014 Aug 15;5:403. (PMID: 25177328)
Bioinformatics. 2011 Nov 1;27(21):2957-63. (PMID: 21903629)
Environ Microbiol. 2012 Jan;14(1):4-12. (PMID: 22004523)
Front Microbiol. 2016 Feb 03;7:60. (PMID: 26870020)
Plant Physiol Biochem. 2020 Oct;155:743-755. (PMID: 32866789)
Ying Yong Sheng Tai Xue Bao. 2008 Jun;19(6):1369-73. (PMID: 18808034)
Sheng Wu Gong Cheng Xue Bao. 2020 Mar 25;36(3):518-528. (PMID: 32237545)
Science. 2012 Jul 20;337(6092):349-51. (PMID: 22822151)
Sci Rep. 2015 Sep 23;5:14345. (PMID: 26396042)
Sci Total Environ. 2019 Jun 1;667:691-700. (PMID: 30849609)
J Hazard Mater. 2017 Mar 5;325:279-287. (PMID: 27940117)
BMC Bioinformatics. 2012 May 30;13:113. (PMID: 22646978)
Appl Microbiol Biotechnol. 2015 Jul;99(13):5719-29. (PMID: 25715781)
J Appl Microbiol. 2007 Mar;102(3):781-6. (PMID: 17309628)
Ecology. 2007 Jul;88(7):1832-40. (PMID: 17645029)
mBio. 2011 Jul 26;2(4):. (PMID: 21791581)
Toxicol Rep. 2019 Nov 29;7:10-15. (PMID: 31871897)
J Hazard Mater. 2020 May 15;390:121631. (PMID: 31776087)
Microb Biotechnol. 2016 May;9(3):293-304. (PMID: 26892826)
New Phytol. 1999 Sep;143(3):513-521. (PMID: 33862886)
- Contributed Indexing:
Keywords: Illumina sequencing; Intercropping; Monoculture; Phylogenetic molecular ecological network; Rhizosphere bacterial community; Soil available cadmium; Soil physicochemical properties; α diversity
- الرقم المعرف:
0 (RNA, Ribosomal, 16S)
0 (Soil)
00BH33GNGH (Cadmium)
- الموضوع:
Date Created: 20220216 Date Completed: 20220307 Latest Revision: 20231213
- الموضوع:
20240628
- الرقم المعرف:
PMC8845239
- الرقم المعرف:
10.1186/s12866-022-02468-3
- الرقم المعرف:
35168566
No Comments.