Biodiversity of a Burkholderia cepacia population isolated from the maize rhizosphere at different plant growth stages

被引：228

作者：

DiCello, F

Bevivino, A

Chiarini, L

Fani, R

Paffetti, D

Tabacchioni, S

Dalmastri, C

机构：

[1] ENEA CR CASACCIA,DIPARTIMENTO INNOVAZ,DIV BIOTECNOL & AGR,I-00060 S MARIA GALERIA,ROME,ITALY

[2] UNIV FLORENCE,DIPARTIMENTO BIOL ANIM & GENET,I-50125 FLORENCE,ITALY

来源：

APPLIED AND ENVIRONMENTAL MICROBIOLOGY | 1997年 / 63卷 / 11期

关键词：

D O I：

10.1128/AEM.63.11.4485-4493.1997

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

A Burkholderia cepacia population naturally occurring in the rhizosphere of Zea mays was investigated in order to assess the degree of root association and microbial biodiversity at five stages of plant growth. The bacterial strains isolated on semiselective PCAT medium were mostly assigned to the species B. cepacia by an analysis of the restriction patterns produced by amplified DNA coding for 16S rRNA (16S rDNA) (ARDRA) with the enzyme AluI. Partial 16S rDNA nucleotide sequences of some randomly chosen isolates confirmed the ARDRA results. Throughout the study, B. cepacia aas strictly associated with maize roots, ranging from 0.6 to 3.6% of the total cultivable microflora. Biodiversity among 83 B. cepacia isolates was analyzed by the random amplified polymorphic DNA (RAPD) technique with two 10-mer primers. An analysis of RAPD patterns by the analysis of molecular variance method revealed a high level of intraspecific genetic diversity in this B. cepacia population. Moreover, the genetic diversity was related to divergences among maize root samplings, with microbial genetic variability markedly higher in the first stages of plant growth; in other words, the biodiversity of this rhizosphere bacterial population decreased over time.

引用

页码：4485 / 4493

页数：9

共 53 条

[11]

Deng S, 1992, PCR Methods Appl, V1, P202

[12]

DiCello F, 1996, MINERVA BIOTECNOL, V8, P126

[13]

DICELLO F, IN PRESS RES MICROBI

[14]

EXCOFFIER L, 1992, GENETICS, V131, P479

[15]

Fani R, 1993, Microb Releases, V1, P217

[16]

FRANKLIN FCH, 1980, MOL GEN GENET, V177, P321

[17] POLYPHASIC TAXONOMY IN THE GENUS BURKHOLDERIA LEADING TO AN EMENDED DESCRIPTION OF THE GENUS AND PROPOSITION OF BURKHOLDERIA-VIETNAMIENSIS SP-NOV FOR N-2-FIXING ISOLATES FROM RICE IN VIETNAM [J].

GILLIS, M ;

VANVAN, T ;

BARDIN, R ;

GOOR, M ;

HEBBAR, P ;

WILLEMS, A ;

SEGERS, P ;

KERSTERS, K ;

HEULIN, T ;

FERNANDEZ, MP .

INTERNATIONAL JOURNAL OF SYSTEMATIC BACTERIOLOGY, 1995, 45 (02) :274-289

[18]

GRIFONI A, 1995, FEMS MICROBIOL LETT, V127, P85, DOI 10.1111/j.1574-6968.1995.tb07454.x

[19] CLASSIFICATION OF MEDICALLY IMPORTANT CLOSTRIDIA USING RESTRICTION ENDONUCLEASE SITE DIFFERENCES OF PCR-AMPLIFIED 16S-RDNA [J].

GURTLER, V ;

WILSON, VA ;

MAYALL, BC .

JOURNAL OF GENERAL MICROBIOLOGY, 1991, 137 :2673-2679

[20] Applications of random amplified polymorphic DNA (RAPD) in molecular ecology [J].

Hadrys, H. ;

Balick, M. ;

Schierwater, B. .

MOLECULAR ECOLOGY, 1992, 1 (01) :55-63

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