Do transgenic plants affect rhizobacteria populations?
Plant genetic manipulation has led to the development of genetically modified plants (GMPs) expressing various traits. Since their first commercial use in 1996, GMPs have been increasingly used, reaching a global cultivating production area of 114.3 million hectares in 2007. The rapid development of agricultural biotechnology and release of GMPs have provided many agronomic and economic benefits, but has also raised concerns over the potential impact these plants might have on the environment. Among these environmental concerns, the unintentional impact that GMPs might have on soil-associated microbes, especially rhizosphere-inhabiting bacteria or rhizobacteria, represents one of the least studied and understood areas. As rhizobacteria are responsible for numerous key functions including nutrient cycling and decomposition, they have been defined as good indicator organisms to assess the general impact that GMPs might have on the soil environment. This minireview summarizes the results of various experiments that have been conducted to date on the impact of GMPs on rhizobacteria. Both biological and technical parameters are discussed and an attempt is made to determine if specific rhizobacterial responses exist for the different categories of GMPs developed to date.
Department of Biology, Université de Moncton, Moncton, Canada. martin.filion@umoncton.ca
Martin
M
Filion
D001419:Bacteria / Q000235:genetics / Q000254:growth & development / Q000302:isolation & purification*; D044822:Biodiversity; D010935:Plant Diseases / Q000382:microbiology / Q000469:parasitology; D018517:Plant Roots / Q000382:microbiology; D030821:Plants, Genetically Modified / Q000382:microbiology* / Q000469:parasitology; D058441:Rhizosphere; D012988:Soil Microbiology
FEMS Microbiol Ecol. 2006 May;56(2):219-35
16629752
Nat Biotechnol. 2003 Sep;21(9):1003-9
12949561
FEMS Microbiol Ecol. 2002 Sep 1;41(3):181-90
19709252
Appl Environ Microbiol. 2007 Jul;73(13):4128-34
17468272
Appl Environ Microbiol. 2005 Nov;71(11):6719-29
16269702
Curr Opin Biotechnol. 2000 Oct;11(5):505-8
11024371
Microb Biotechnol. 2008 Mar;1(2):191-5
21261836
Plant Physiol Biochem. 2007 Jun-Jul;45(6-7):464-9
17467280
FEMS Microbiol Ecol. 2002 Apr 1;40(1):29-37
19709208
J Environ Sci (China). 2006;18(4):734-40
17078553
Mol Ecol. 2000 Jul;9(7):881-90
10886651
Nat Biotechnol. 1997 Apr;15(4):369-72
9094140
Nat Biotechnol. 2002 Jun;20(6):567-74
12042859
Appl Environ Microbiol. 1994 Sep;60(9):3292-9
16349382
Proc Natl Acad Sci U S A. 2008 Mar 11;105(10):3957-62
18292221
Appl Environ Microbiol. 2006 Jun;72(6):4302-12
16751545
Genome Biol. 2007;8(9):R179
17784941
Folia Microbiol (Praha). 2005;50(6):509-14
16681149
Appl Environ Microbiol. 1998 Apr;64(4):1550-4
9546192
Nature. 2000 Feb 10;403(6770):646-9
10688198
Appl Environ Microbiol. 2002 May;68(5):2562-6
11976135
Microb Ecol. 1999 Feb;37(2):129-139
9929401
Annu Rev Microbiol. 2002;56:211-36
12142496
Microb Ecol. 2004 Jan;47(1):96-103
15259274
Microb Ecol. 2004 Oct;48(3):338-48
15692854
Environ Microbiol. 2007 Jul;9(7):1724-37
17564606
Microb Biotechnol. 2008 Jan;1(1):17-29
21261818
Appl Environ Microbiol. 2003 Aug;69(8):4455-62
12902229
J Environ Qual. 2006 Apr 03;35(3):734-41
16585615
Appl Environ Microbiol. 2003 Dec;69(12):7310-8
14660380
FEMS Microbiol Ecol. 2000 Jun 1;32(3):241-247
10858583
Appl Environ Microbiol. 2000 Jun;66(6):2541-7
10831436
Appl Environ Microbiol. 2002 Mar;68(3):1325-35
11872484
Microbiol Res. 2001;156(1):75-82
11372657
Appl Environ Microbiol. 1991 Aug;57(8):2351-9
16348543
FEMS Microbiol Ecol. 2004 Dec 27;51(1):19-29
16329853
Nature. 1990 May 3;345(6270):63-5
1691827
Can J Microbiol. 2003 Jan;49(1):1-8
12674342
J Bacteriol. 1990 Feb;172(2):762-70
1688842
Environ Sci Technol. 2007 Aug 15;41(16):5854-61
17874797
J Environ Qual. 2004 May-Jun;33(3):832-6
15224917
Mol Ecol. 2005 Jul;14(8):2539-51
15969733
J Environ Qual. 2004 May-Jun;33(3):837-43
15224918
Mol Ecol. 2003 Mar;12(3):765-75
12675831
FEMS Microbiol Ecol. 2006 Dec;58(3):492-502
17117991