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You searched for: Journal name Molecular plant-microbe interactions Remove constraint Journal name: Molecular plant-microbe interactions Publication year rev 7997-2003 Remove constraint Publication year rev: 7997-2003 Source 2003 v.16 no.12 Remove constraint Source: 2003 v.16 no.12
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1. GacA, the response regulator of a two-component system, acts as a master regulator in Pseudomonas syringae pv. tomato DC3000 by controlling regulatory RNA, transcriptional activators, and alternate sigma factors

Author:
Chatterjee, A.; Cui, Y.; Yang, H.; Collmer, A.; Alfano, J.R.; Chatterjee, A.K.
Source:
Molecular plant-microbe interactions 2003 v.16 no.12 pp. 1106-1117
ISSN:
0894-0282
Subject:
Arabidopsis thaliana; tomatoes; messenger RNA; regulatory proteins; Pseudomonas syringae pv. tomato; transcription (genetics); bacterial proteins; sigma factors; gene expression regulation; virulence; Solanum lycopersicum var. lycopersicum
Abstract:
... Concerted investigations of factors affecting host-pathogen interactions are now possible with the model plant Arabidopsis thaliana and its model pathogen Pseudomonas syringae pv. tomato DC3000, as their whole genome sequences have become available. As a prelude to analysis of the regulatory genes and their targets, we have focused on GacA, the response regulator of a two-component system. The DC3 ...
DOI:
10.1094/MPMI.2003.16.12.1106
PubMed:
14651344

2. Induction of the Hahsp17.7G4 promoter by root-knot nematodes: involvement of heat-shock elements in promoter activity in giant cells

Author:
Escobar, C.; Barcala, M.; Portillo, M.; Almoguera, C.; Jordano, J.; Fenoll, C.
Source:
Molecular plant-microbe interactions 2003 v.16 no.12 pp. 1062-1068
ISSN:
0894-0282
Subject:
Nicotiana tabacum; tobacco; transgenic plants; Helianthus annuus; promoter regions; heat shock proteins; recombinant DNA; reporter genes; beta-glucuronidase; gene induction; Meloidogyne incognita; root-knot nematodes; giant cells; root galls; roots; point mutation
Abstract:
... Root-knot nematodes feed from specialized giant cells induced in the plants that they parasitize. We found that the promoter of the Hahsp17.7G4 gene, which encodes a small heat-shock protein involved in embryogenesis and stress responses, directed GUS expression in tobacco galls induced by the root-knot nematode Meloidogyne incognita. In roots containing a GUS reporter fusion to the Hahsp17.7G4 pr ...
DOI:
10.1094/MPMI.2003.16.12.1062
PubMed:
14651339

3. Nitric oxide-mediated transcriptional changes in Arabidopsis thaliana

Author:
Polverari, A.; Molesini, B.; Pezzotti, M.; Buonaurio, R.; Marte, M.; Delledonne, M.
Source:
Molecular plant-microbe interactions 2003 v.16 no.12 pp. 1094-1105
ISSN:
0894-0282
Subject:
Arabidopsis thaliana; nitric oxide; hypersensitive response; transcription (genetics); gene expression; messenger RNA; complementary DNA; amplified fragment length polymorphism; reactive oxygen species; host-pathogen relationships; disease resistance; genes; bioinformatics
Abstract:
... Nitric oxide (NO) is an essential regulatory molecule in several developmental processes and in the stress response in both animal and plant systems. Furthermore, key features of plant resistance to pathogens have been shown to depend on NO production, e.g., defense gene expression and the activation of a hypersensitive reaction (HR) in synergy with reactive oxygen species (ROS). Due to the many p ...
DOI:
10.1094/MPMI.2003.16.12.1094
PubMed:
14651343

4. Nodulation of Mimosa spp. by the beta-proteobacterium Ralstonia taiwanensis

Author:
Chen, W.M.; James, E.K.; Prescott, A.R.; Kierans, M.; Sprent, J.I.
Source:
Molecular plant-microbe interactions 2003 v.16 no.12 pp. 1051-1060
ISSN:
0894-0282
Subject:
nitrogen fixation; immunohistochemistry; root nodules; Ralstonia; Mimosa pudica; nodulation; nitrogenase; Mimosa diplotricha; enzyme activity
Abstract:
... Several beta-proteobacteria have been isolated from legume root nodules and some of these are thought to be capable of nodulating and fixing N2. However, in no case has there been detailed studies confirming that they are the active symbionts. Here, Ralstonia taiwanensis LMG19424, which was originally isolated from Mimosa pudica nodules, was transformed to carry the green fluorescent protein (gfp) ...
DOI:
10.1094/MPMI.2003.16.12.1051
PubMed:
14651338

5. Three genes encoding for putative methyl- and acetytransferases map adjacent to the wzm and wzt genes and are essential for O-antigen biosynthesis in Rhizobium etli CE3

Author:
Lerouge, I.; Verreth, C.; Michiels, J.; Carlson, R.W.; Datta, A.; Gao, M.Y.; Vanderleyden, J.
Source:
Molecular plant-microbe interactions 2003 v.16 no.12 pp. 1085-1093
ISSN:
0894-0282
Subject:
carbohydrate metabolism; methyltransferases; lipopolysaccharides; open reading frames; amino acid sequences; bacterial antigens; chromosome mapping; genes; carbohydrate composition; Rhizobium etli; acyltransferases
Abstract:
... The elucidation of the structure of the O-antigen of Rhizobium etli CE3 predicts that the R. etli CE3 genome must contain genes encoding acetyl- and methyltransferases to confer the corresponding modifications to the O-antigen. We identified three open reading frames (ORFs) upstream of wzm, encoding the membrane component of the O-antigen transporter and located in the lpsalpha-region of R. etli C ...
DOI:
10.1094/MPMI.2003.16.12.1085

6. The glucocorticoid-inducible GVG system causes severe growth defects in both root and shoot of the model legume Lotus japonicus

Author:
Andersen, S.U.; Cvitanich, C.; Hougaard, B.K.; Roussis, A.; Gronlund, M.; Jensen, D.B.; Frokjaer, L.A.; Jensen, E.O.
Source:
Molecular plant-microbe interactions 2003 v.16 no.12 pp. 1069-1076
ISSN:
0894-0282
Subject:
transcription factors; plant development; transgenes; leaf primordia; recombinant proteins; transgenic plants; internodes; cell division; gene expression; Lotus; root growth; abnormal development; gibberellins; gene induction; roots; shoots
Abstract:
... During the past decade, the legume Lotus japonicus has emerged as an important model system for study of symbiotic nitrogen fixation. Controlled expression of genes involved in symbiosis from an inducible promoter at specific time points would be a valuable tool for investigating gene function in L. japonicus. We have attempted to study the function of the putative transcription factors LjNDX and ...
DOI:
10.1094/MPMI.2003.16.12.1069
PubMed:
14651340

7. A set of genes differentially expressed between avirulent and virulent Meloidogyne incognita near-isogenic lines encode secreted proteins

Author:
Neveu, C.; Jaubert, S.; Abad, P.; Castagnone-Sereno, P.
Source:
Molecular plant-microbe interactions 2003 v.16 no.12 pp. 1077-1084
ISSN:
0894-0282
Subject:
messenger RNA; in situ hybridization; line differences; amplified fragment length polymorphism; complementary DNA; Meloidogyne incognita; gene expression; genes; nematode larvae; root-knot nematodes; virulence; Solanum lycopersicum var. lycopersicum
Abstract:
... A cDNA-amplification fragment length polymorphism (AFLP)-based strategy has been used to identify genes differentially expressed between two pairs of near-isogenic lines (NIL) of the root-knot nematode Meloidogyne incognita either avirulent or virulent against the tomato Mi resistance gene. Gene expression profiles from infective second-stage juveniles (J2) were compared, and 22 of the 24,025 tran ...
DOI:
10.1094/MPMI.2003.16.12.1077
PubMed:
14651341

8. The Cre1 and Cre3 nematode resistance genes are located at homeologous loci in the wheat genome

Author:
Majnik, J. de; Ogbonnaya, F.C.; Moullet, O.; Lagudah, E.S.
Source:
Molecular plant-microbe interactions 2003 v.16 no.12 pp. 1129-1134
ISSN:
0894-0282
Subject:
Triticum aestivum; wheat; pest resistance; Heterodera avenae; cyst nematodes; genes; chromosome mapping; loci
Abstract:
... Differential responses in host-nematode pathotype interactions occur in wheat lines carrying different cereal cyst nematode resistance (Cre) genes. Cre1, located on chromosome 2B, confers resistance to most European nematodes and the sole Australian pathotype, while Cre3, present on chromosome 2D, is highly resistant to the Australian pathotype and susceptible to a number of European pathotypes. G ...
DOI:
10.1094/MPMI.2003.16.12.1129
PubMed:
14651346

9. Depletion of the photosystem II core complex in mature tobacco leaves infected by the flavum strain of Tobacco mosaic virus

Author:
Lehto, K.; Tikkanen, M.; Hiriart, J.B.; Paakkarinen, V.; Aro, E.M.
Source:
Molecular plant-microbe interactions 2003 v.16 no.12 pp. 1135-1144
ISSN:
0894-0282
Subject:
Tobacco mosaic virus; thylakoids; D1 protein; oxygen evolving complex; Nicotiana tabacum; leaves; viral proteins; chlorosis; tobacco; infection
Abstract:
... The flavum strain of Tobacco mosaic virus (TMV) differs from the wild-type (wt) virus by causing strong yellow and green mosaic in the systemically infected developing leaves, yellowing in the fully expanded leaves, and distinct malformations of chloroplasts in both types of infected tissues. Analysis of the thylakoid proteins of flavum strain-infected tobacco leaves indicated that the chlorosis i ...
DOI:
10.1094/MPMI.2003.16.12.1135
PubMed:
14651347

10. Laminarin elicits defense responses in grapevine and induces protection against Botrytis cinerea and Plasmopara viticola

Author:
Aziz, A.; Poinssot, B.; Daire, X.; Adrian, M.; Bezier, A.; Lambert, B.; Joubert, J.M.; Pugin, A.
Source:
Molecular plant-microbe interactions 2003 v.16 no.12 pp. 1118-1128
ISSN:
0894-0282
Subject:
Vitis vinifera; grapes; fungal diseases of plants; Botrytis cinerea; Plasmopara viticola; downy mildew; disease resistance; defense mechanisms; beta-glucans; Laminaria; disease control
Abstract:
... Grapevine (Vitis vinifera L.) is susceptible to many pathogens, such as Botrytis cinerea, Plasmopara viticola, Uncinula necator, and Eutypa lata. Phytochemicals are used intensively in vineyards to limit pathogen infections, but the appearance of pesticide-resistant pathogen strains and a desire to protect the environment require that alternative strategies be found. In the present study, the beta ...
DOI:
10.1094/MPMI.2003.16.12.1118
PubMed:
14651345

11. Oxidative burst elicited by Bacillus mycoides isolate Bac J, a biological control agent, occurs independently of hypersensitive cell death in sugar beet

Author:
Bargabus, R.L.; Zidack, N.K.; Sherwood, J.E.; Jacobsen, B.J.
Source:
Molecular plant-microbe interactions 2003 v.16 no.12 pp. 1145-1153
ISSN:
0894-0282
Subject:
plant pathogenic bacteria; fungal antagonists; sugar beet; Cercospora beticola; systemic acquired resistance; defense mechanisms; chitinase; Pectobacterium carotovorum subsp. betavasculorum; plant pathogenic fungi; disease resistance; Bacillus mycoides; enzyme activity; Beta vulgaris; biological control
Abstract:
... Response of sugar beet cultivars C40 and USH11 to syringe infiltration of live and dead Bacillus mycoides isolate Bac J, a biological control agent, and virulent and avirulent isolates of Erwinia carotovora pv. betavasculorum was measured by monitoring systemic acquired resistance control of Cercospora beticola, specific activity of chitinase and beta-glucanase, the oxidative burst, and hypersensi ...
DOI:
10.1094/MPMI.2003.16.12.1145
PubMed:
14651348