Role of rhizobial EPS in the evasion of peanut defense response during the crack-entry infection process

被引：8

作者：

Morgante, Carolina ^{[1
]}

Castro, Stella ^{[1
]}

Fabra, Adriana ^{[1
]}

机构：

[1] Univ Nacl Rio Cuarto, Fac Ciencias Exactas Fisicoquim & Nat, Dept Ciencias Nat, RA-5800 Rio Cuarto, Cordoba, Argentina

来源：

SOIL BIOLOGY & BIOCHEMISTRY | 2007年 / 39卷 / 05期

关键词：

crack entry; exopolysaccharides; plant defense system;

D O I：

10.1016/j.soilbio.2006.11.022

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Roles of rhizobial exopolysaccharides (EPS) in symbiotic nodulation have been most thoroughly studied in legumes infected by the infection thread (IT) mechanism. Peanut (Arachis hypogaea L.) differs from other legumes in that rhizobial penetration and spreading inside the nodule occur without IT formation but rather by crack-entry infection. By using a defined mutant (NET30-M1024) affected in the EPS production, we have previously shown that peanut symbionts require these molecules for efficient nodulation. In this work, we monitored the relationship between the symbiotic behavior of this mutant and the EPS level production, and evaluated ex planta if these molecules could play a role in protecting the microsymbiont against plant defense reactions. (c) 2007 Elsevier Ltd. All rights reserved.

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页码：1222 / 1225

页数：4

相关论文

共 26 条

[1] PURIFICATION AND PROPERTIES OF A SPECIFIC, INDUCIBLE BETA-GLUCANASE, SUCCINOGLUCAN DEPOLYMERASE FROM FLAVOBACTERIUM [J].

AMEMURA, A ;

MOORI, K ;

HARADA, T .

BIOCHIMICA ET BIOPHYSICA ACTA, 1974, 334 (02) :398-409

[2] SPECIFIC OLIGOSACCHARIDE FORM OF THE RHIZOBIUM-MELILOTI EXOPOLYSACCHARIDE PROMOTES NODULE INVASION IN ALFALFA [J].

BATTISTI, L ;

LARA, JC ;

LEIGH, JA .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1992, 89 (12) :5625-5629

[3] Nodulation of groundnut by Bradyrhizobium: a simple infection process by crack entry [J].

Boogerd, FC ;

vanRossum, D .

FEMS MICROBIOLOGY REVIEWS, 1997, 21 (01) :5-27

[4] Succinoglycan is required for initiation and elongation of infection threads during nodulation of alfalfa by Rhizobium meliloti [J].

Cheng, HP ;

Walker, GC .

JOURNAL OF BACTERIOLOGY, 1998, 180 (19) :5183-5191

[5] Structural characterization of extracellular polysaccharides of Azorhizobium caulinodans and importance for nodule initiation on Sesbania rostrata [J].

D'Haeze, W ;

Glushka, J ;

De Rycke, R ;

Holsters, M ;

Carlson, RW .

MOLECULAR MICROBIOLOGY, 2004, 52 (02) :485-500

[6] Infection and invasion of roots by symbiotic, nitrogen-fixing rhizobia during nodulation of temperate legumes [J].

Gage, DJ .

MICROBIOLOGY AND MOLECULAR BIOLOGY REVIEWS, 2004, 68 (02) :280-+

[7]

GONZALES JE, 1996, P NATL ACAD SCI USA, V93, P8641

[8] Rhizobium meliloti exopolysaccharides: Synthesis and symbiotic function [J].

Gonzalez, JE ;

York, GM ;

Walker, GC .

GENE, 1996, 179 (01) :141-146

[9] Reactive oxygen species, nitric oxide and glutathione:: a key role in the establishment of the legume-Rhizobium symbiosis? [J].

Hérouart, D ;

Baudouin, E ;

Frendo, P ;

Harrison, J ;

Santos, R ;

Jamet, A ;

Van de Sype, G ;

Touati, D ;

Puppo, A .

PLANT PHYSIOLOGY AND BIOCHEMISTRY, 2002, 40 (6-8) :619-624

[10] Role of cellulose fibrils and exopolysaccharides of Rhizobium leguminosarum in attachment to and infection of Vicia sativa root hairs [J].

Laus, MC ;

van Brussel, AAN ;

Kijne, JW .

MOLECULAR PLANT-MICROBE INTERACTIONS, 2005, 18 (06) :533-538