Plant growth promoting properties of a strain of Enterobacter ludwigii isolated from Lolium perenne rhizosphere

被引：130

作者：

Shoebitz, Mauricio ^{[2
]}

Ribaudo, Claudia M.

Pardo, Martin A. ^{[3
]}

Cantore, Maria L. ^{[1
,3
]}

Ciampi, Luigi ^{[2
]}

Cura, Jose A. ^{[3
]}

机构：

[1] Univ Buenos Aires, Fac Agron, CONICET, Inst Invest Bioquim & Fisiol, Buenos Aires, DF, Argentina

[2] Univ Austral Chile, Fac Ciencias Agr, Inst Prod & Sanidad Vegetal, Valdivia, Chile

[3] Univ Buenos Aires, Fac Agron, Catedra Bioquim, Buenos Aires, DF, Argentina

来源：

SOIL BIOLOGY & BIOCHEMISTRY | 2009年 / 41卷 / 09期

关键词：

Enterobacter ludwigii; Plant growth promotion; Lolium perenne; Biocontrol; Fusarium solani; BIOLOGICAL NITROGEN-FIXATION; AZOSPIRILLUM; FIELD; RHIZOBACTERIA; INOCULATION; BIOCONTROL; DISEASES;

D O I：

10.1016/j.soilbio.2007.12.031

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

The capability of native bacterial strains isolated from Lolium perenne rhizosphere to behave as plant growth promoting bacteria and /or biocontrol agents was investigated. One strain (BNM 0357) over 13 isolates from the root tips of L perenne resulted proved to be nitrogenase positive (ARA test) and an IAA producer. Conventional tests and the API 20E diagnostic kit indicated that BNM 0357 behaves to the Enterobacteriaceae family and to the Enterobacter genus. Molecular identification by 16S rRNA sequence analysis indicated that BNM 0357 had the highest similarity to Enterobacter ludwigii (EN-119). Isolate BNM 0357 had the capability to solubilize calcium triphosphate and to antagonize Fusarium solani mycelial growth and spore germination. Strain BNM 0357 also showed the ability to improve the development of the root system of L perenne. This study disclosed features of E. ludwigii BNM 0357 that deserve further studies aimed at confirming its putative importance as a PGPR. (C) 2008 Published by Elsevier Ltd.

引用

页码：1768 / 1774

页数：7

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