Production of Exopolysaccharides

Bacterial Biofilms in Nature and Disease

1987 • 3,010 citations

Biological Nitrogen Fixation

1993 • 1,524 citations

Molecular basis of symbiosis between Rhizobium and legumes

1997 • 767 citations

Second symbiotic megaplasmid in Rhizobium meliloti carrying exopolysaccharide and thiamine synthesis genes

1986 • 608 citations

Exopolysaccharide-deficient mutants of Rhizobium meliloti that form ineffective nodules.

1985 • 589 citations

Advances in Molecular Genetics of Plant-Microbe Interactions

1994 • 470 citations

Organization of the Escherichia coli K-12 gene cluster responsible for production of the extracellular polysaccharide colanic acid

1996 • 448 citations

Nitrogen fixation hundred years after

1989 • 419 citations

Genetic organization of the cellulose synthase operon in Acetobacter xylinum.

1990 • 342 citations

Biological Nitrogen Fixation

1993 • 339 citations

Symbiotic mutants of rhizobium meliloti that uncouple plant from bacterial differentiation

1985 • 337 citations

Identification and characterization of the eps (Exopolysaccharide) gene cluster from Streptococcus thermophilus Sfi6

1996 • 317 citations

Nitrogen fixation hundred years after

1988 • 308 citations

Alginate synthesis by Pseudomonas aeruginosa: a key pathogenic factor in chronic pulmonary infections of cystic fibrosis patients

1991 • 306 citations

Biosynthesis of lipopolysaccharide O antigens

1995 • 297 citations

A novel exopolysaccharide can function in place of the Calcofluor-binding exopolysaccharide in nodulation of alfalfa by Rhizobium meliloti

1989 • 291 citations

Biosynthesis of succinoglycan, a symbiotically important exopolysaccharide of Rhizobium meliloti

1993 • 286 citations

Novel Biodegradable Microbial Polymers

1990 • 282 citations

Nitrogen Fixation: Fundamentals and Applications

1995 • 257 citations

Bacterial outer membranes: Biogenesis and functions

1979 • 254 citations

Biosynthesis and Expression of Cell-Surface Polysaccharides in Gram-Negative Bacteria

1993 • 251 citations

Bacterial extracellular polysaccharides

1988 • 236 citations

Molecular analysis of the ams operon required for exopolysaccharide synthesis of Erwinia amylovora

1995 • 230 citations

Biosynthesis of Microbial Exopolysaccharides

1982 • 230 citations

Rhizobium meliloti mutants that fail to succinylate their Calcofluor-binding exopolysaccharide are defective in nodule invasion

1987 • 228 citations

Plant defence and delayed infection of alfalfa pseudonodules induced by an exopolysaccharide (EPS I)-deficient Rhizobium meliloti mutant

1993 • 214 citations

Genes needed for the modification, polymerization, export, and processing of succinoglycan by Rhizobium meliloti: a model for succinoglycan biosynthesis

1993 • 198 citations

Specific oligosaccharide form of the Rhizobium meliloti exopolysaccharide promotes nodule invasion in alfalfa.

1992 • 193 citations

Low molecular weight EPS II of Rhizobium meliloti allows nodule invasion in Medicago sativa.

1996 • 179 citations

Detailed structural characterization of succinoglycan, the major exopolysaccharide of Rhizobium meliloti Rm1021

1994 • 178 citations

Rhizobium meliloti mutants that overproduce the R. meliloti acidic calcofluor-binding exopolysaccharide

1988 • 174 citations

Surface layers of bacteria.

1991 • 174 citations

Genetic analysis of a cluster of genes required for synthesis of the calcofluor-binding exopolysaccharide of Rhizobium meliloti

1988 • 163 citations

Structural elucidation, using h.p.l.c.-m.s. and g.l.c.-m.s., of the acidic polysaccharide secreted by rhizobium meliloti strain 1021

1981 • 160 citations

Nitrogen fixation ability of exopolysaccharide synthesis mutants of Rhizobium sp. strain NGR234 and Rhizobium trifolii is restored by the addition of homologous exopolysaccharides

1987 • 159 citations

Pseudomonas aeruginosa: genes and enzymes of alginate synthesis

1994 • 158 citations

A family of activator genes regulates expression of Rhizobium meliloti nodulation genes.

1989 • 143 citations

Sequential assembly and polymerization of the polyprenol-linked pentasaccharide repeating unit of the xanthan polysaccharide in Xanthomonas campestris

1993 • 140 citations

Analysis of a 1600-kilobase Rhizobium meliloti megaplasmid using defined deletions generated in vivo.

1991 • 138 citations

A mutation that blocks exopolysaccharide synthesis prevents nodulation of peas by Rhizobium leguminosarum but not of beans by R. phaseoli and is corrected by cloned DNA from Rhizobium or the phytopathogen Xanthomonas

1986 • 137 citations

Biomedical and biotechnological advances in industrial polysaccharides

1991 • 135 citations

Rhizobium meliloti exopolysaccharides: Synthesis and symbiotic function

1996 • 134 citations

Family of glycosyl transferases needed for the synthesis of succinoglycan by Rhizobium meliloti

1993 • 133 citations

The 32-kilobase exp gene cluster of Rhizobium meliloti directing the biosynthesis of galactoglucan: genetic organization and properties of the encoded gene products

1997 • 132 citations

The two megaplasmids of Rhizobium meliloti are involved in the effective nodulation of alfalfa

1986 • 130 citations

Molecular Analysis of the Rhizobium meliloti mucR<i />Gene Regulating the Biosynthesis of the Exopolysaccharides Succinoglycan and Galactoglucan

1995 • 130 citations

Galactose-sensitive mutants of Salmonella II. Bacteriolysis induced by galactose

1961 • 126 citations

Cyclic beta-glucans of members of the family Rhizobiaceae.

1994 • 121 citations

Zones of membrane adhesion in the cryofixed envelope of Escherichia coli

1991 • 119 citations

Application of two new methods for cleavage of polysaccharides into specific oligosaccharide fragments. Structure of the capsular and extracellular polysaccharides of Rhizobium japonicum that bind soybean lectin.

1982 • 118 citations

Composition of the Capsular and Extracellular Polysaccharides of Rhizobium japonicum

1980 • 117 citations

A second exopolysaccharide of Rhizobium meliloti strain SU47 that can function in root nodule invasion.

1989 • 117 citations

Osmotically induced oligo- and polysaccharide synthesis by Rhizobium meliloti SU-47

1990 • 117 citations

Symbiotic loci of Rhizobium meliloti identified by random TnphoA mutagenesis

1988 • 116 citations

Characterization of polysaccharides of Rhizobium meliloti exo mutants that form ineffective nodules

1988 • 116 citations

Two classes of Rhizobium meliloti infection mutants differ in exopolysaccharide production and in coinoculation properties with nodulation mutants

1988 • 115 citations

Expression of the O9 polysaccharide of Escherichia coli: sequencing of the E. coli O9 rfb gene cluster, characterization of mannosyl transferases, and evidence for an ATP-binding cassette transport system

1995 • 115 citations

Induction of the second exopolysaccharide (EPSb) in Rhizobium meliloti SU47 by low phosphate concentrations

1991 • 112 citations

Identification and analysis of the Rhizobium meliloti exoAMONP genes involved in exopolysaccharide biosynthesis and mapping of promoters located on the exoHKLAMONP fragment

1993 • 111 citations

The Rhizobium meliloti exoZl exoB fragment of megaplasmid 2: ExoB functions as a UDP‐glucose 4‐epimerase and ExoZ shows homology to NodX of Rhizobium leguminosarum biovar viciae strain TOM

1991 • 109 citations

The nodulation-signaling protein NodO from Rhizobium leguminosarum biovar viciae forms ion channels in membranes.

1994 • 107 citations

Current ReviewMolecular Genetics of Extracellular Polysaccharide Biosynthesis in Vascular Phytopathogenic Bacteria

1990 • 106 citations

Alteration of the Effective Nodulation Properties of a Fast-growing Broad Host Range Rhizobium due to Changes in Exopolysaccharide Synthesis

1985 • 105 citations

Localization of the terminal steps of O-antigen synthesis in Salmonella typhimurium

1991 • 105 citations

Structure and biosynthesis of surface polymers containing polysialic acid in Escherichia coli.

1980 • 104 citations

Low‐molecular‐weight succinoglycan is predominantly produced by Rhizobium meliloti strains carrying a mutated ExoP protein characterized by a periplasmic N‐terminal domain and a missing C‐terminal domain

1995 • 100 citations

Cloning of a gene involved in cellulose biosynthesis in Acetobacter xylinum: Complementation of cellulose-negative mutants by the UDPG pyrophosphorylase structural gene

1989 • 99 citations

Genetic Analysis of theRhizobium meliloti exoYFQOperon: ExoY is Homologous to Sugar Transferases and ExoQ Represents a Transmembrane Protein

1993 • 96 citations

Plant Defense Responses of Host Plants with Determinate Nodules Induced by EPS-DefectiveexoBMutants ofBradyrhizobium japonicum

1994 • 94 citations

Cellular glycogen, ?-1,2-glucan, poly-?-hydroxybutyric acid and extracellular polysaccharides in fast-growing species of Rhizobium

1981 • 93 citations

Exopolysaccharide mutants of Rhizobium loti are fully effective on a determinate nodulating host but are ineffective on an indeterminate nodulating host

1991 • 92 citations

The virC and virD operons of the Agrobacterium Ti plasmid are regulated by the ros chromosomal gene: analysis of the cloned ros gene

1991 • 92 citations

The Nucleotide Specificity and Feedback Control of Thymidine Diphosphate d-Glucose Pyrophosphorylase

1965 • 89 citations

Molecular characterization of the eps gene cluster of Pseudomonas solanacearum and its transcriptional regulation at a single promoter

1995 • 89 citations

Exogenous suppression of the symbiotic deficiencies of Rhizobium meliloti exo mutants

1992 • 88 citations

Conserved outer membrane protein of Neisseria meningitidis involved in capsule expression

1992 • 87 citations

The Rhizobium meliloti exoK gene and prsD / prsE / exsH genes are components of independent degradative pathways which contribute to production of low‐molecular‐weight succinoglycan

1997 • 86 citations

Structural studies of a novel exopolysaccharide produced by a mutant of Rhizobium meliloti strain Rm1021

1990 • 84 citations

Rhizobium leguminosarum exopolysaccharide mutants: biochemical and genetic analyses and symbiotic behavior on three hosts

1989 • 83 citations

Analysis of pss genes of Rhizobium leguminosarum required for exopolysaccharide synthesis and nodulation of peas: Their primary structure and their interaction with psi and other nodulation genes

1988 • 81 citations

Identification of Rhizobium-specific intergenic mosaic elements within an essential two-component regulatory system of Rhizobium species

1995 • 81 citations

Regulation of Rhizobium meliloti exo genes in free-living cells and in planta examined by using TnphoA fusions

1991 • 80 citations

Analysis of theRhizobium melilotiGenesexoU,exoV,exoW,exoT, andexoI Involved in Exopolysaccharide Biosynthesis and Nodule Invasion:exoU andexoW Probably Encode Glucosyltransferases

1993 • 79 citations

Rhizobium meliloti exoG and exoJ mutations affect the exoX-exoY system for modulation of exopolysaccharide production

1991 • 79 citations

Sequence of psi, a gene on the symbiotic plasmid of Rhizobium phaseoli which inhibits exopolysaccharide synthesis and nodulation and demonstration that its transcription is inhibited by psr, another gene on the symbiotic plasmid

1987 • 76 citations

Extension of the Rhizobium meliloti succinoglycan biosynthesis gene cluster: identification of the exsA gene encoding an ABC transporter protein, and the exsB gene which probably codes for a regulator of succinoglycan biosynthesis

1995 • 75 citations

The exoR gene of Rhizobium meliloti affects RNA levels of other exo genes but lacks homology to known transcriptional regulators

1991 • 75 citations

Exopolysaccharide production in Rhizobium and its role in invasion

1990 • 75 citations

Cell surface polysaccharides from Bradyrhizobium japonicum and a nonnodulating mutant

1987 • 75 citations

Defective Infection and Nodulation of Clovers by Exopolysaccharide Mutants of Rhizobium leguminosarum bv. trifolii

1996 • 73 citations

Nodules Initiated by Rhizobium meliloti Exopolysaccharide Mutants Lack a Discrete, Persistent Nodule Meristem

1992 • 73 citations

Biological Fixation of Nitrogen for Ecology and Sustainable Agriculture

1997 • 71 citations

Analysis of the Rhizobium meliloti exoH/exoK/exoL fragment: ExoK shows homology to excreted endo-β-1,3-1,4-glucanases and ExoH resembles membrane proteins

1993 • 71 citations

Structural studies of the extracellular polysaccharides of Rhizobium japonicum strains 71A, CC708, and CB1795

1978 • 71 citations

Excessive excretion of cyclic beta-(1,2)-glucan by Rhizobium trifolii TA-1

1990 • 70 citations

The discernible, structural features of the acidic polysaccharides secreted by different Rhizobium species are the same

1986 • 69 citations

Biochemical characterization of avirulent exoC mutants of Agrobacterium tumefaciens

1990 • 68 citations

Lipid-bound saccharides in Rhizobium meliloti.

1982 • 67 citations

psi, a plasmid-linked Rhizobium phaseoli gene that inhibits exopolysaccharide production and which is required for symbiotic nitrogen fixation

1985 • 66 citations

rosR, a Determinant of Nodulation Competitiveness in Rhizobium etli

1997 • 65 citations

Cloning and Characterization of Four Genes of Rhizobium leguminosarum bv. trifolii Involved in Exopolysaccharide Production and Nodulation

1997 • 63 citations

Expression of the Escherichia coli K5 capsular antigen: immunoelectron microscopic and biochemical studies with recombinant E. coli

1990 • 61 citations

Two genes that regulate exopolysaccharide production in Rhizobium sp. strain NGR234: DNA sequences and resultant phenotypes

1990 • 61 citations

Comparison of Extracellular Polysaccharide Composition, Rhizobitoxine Production, and Hydrogenase Phenotype among Various Strains of Bradyrhizobium japonicum

1989 • 60 citations

Structural elucidation on succinoglycan and related polysaccharides from Agrobacterium and Rhizobium by fragmentation with two special .BETA.-D-glycanases and methylation analysis.

1980 • 60 citations

Bacterial Surface Polysaccharides: Structure and Function

1988 • 60 citations

Structural studies on the extracellular acidic polysaccharide from Rhizobium trifolii 4S

1983 • 59 citations

Two genes that regulate exopolysaccharide production in Rhizobium meliloti

1990 • 58 citations

Polysaccharide synthesis in relation to nodulation behavior of Rhizobium leguminosarum

1993 • 57 citations

The acetyl substituent of succinoglycan is not necessary for alfalfa nodule invasion by Rhizobium meliloti Rm1021

1993 • 55 citations

Rhizobium leguminosarum exoB mutants are deficient in the synthesis of UDP-glucose 4'-epimerase.

1990 • 55 citations

AgrobacteriumおよびRhizobiumの生産するスクシノグリカンとその関連多糖類の2種β-D-グルカナーゼによる分解とメチル化分析による構造解析

1980 • 54 citations

Biosynthesis of the Escherichia coli K5 polysaccharide, a representative of group II capsular polysaccharides: polymerization in vitro and characterization of the product

1991 • 53 citations

The structure of the exopolysaccharide from Rhizobium sp. strain ANU280 (NGR234)

1986 • 51 citations

Ethylene Prevents Nodulation ofVicia sativassp.nigraby Exopolysaccharide-Deficient Mutants ofRhizobium leguminosarumbv.Viciae

1995 • 51 citations

The exoD gene of Rhizobium meliloti encodes a novel function needed for alfalfa nodule invasion

1991 • 50 citations

ExoB Mutants ofBradyrhizobium japonicumwith Reduced Competitiveness for Nodulation ofGlycine max

1993 • 48 citations

The pss4 gene from Rhizobium leguminosarum bv viciae VF39: cloning, sequence and the possible role in polysaccharide production and nodule formation

1994 • 46 citations

Analysis of the Ros repressor of Agrobacterium virC and virD operons: molecular intercommunication between plasmid and chromosomal genes

1993 • 45 citations

Interaction ofnodandexo Rhizobium melilotiin Alfalfa Nodulation

1988 • 44 citations

Lipid-bound sugars in Rhizobium meliloti

1980 • 44 citations

Cooperative Action of Rhizobium meliloti Nodulation and Infection Mutants during the Process of Forming Mixed Infected Alfalfa Nodules.

1990 • 43 citations

Structure of the extracellular polysaccharide secreted by Rhizobium leguminosarum var. phaseoli CIAT 899

1990 • 42 citations

The complete structure of the trifoliin a lectin-binding capsular polysaccharide of Rhizobium trifolii 843

1988 • 41 citations

The products of Rhizobium genes, psi and pss, which affect exopolysaccharide production, are associated with the bacterial cell surface

1991 • 40 citations

Regulation of exopolysaccharide production in Rhizobium leguminosarum biovar viciae WSM710 involves exoR

1997 • 40 citations

Biosynthesis of the polysialic acid capsule in Escherichia coli K1. The endogenous acceptor of polysialic acid is a membrane protein of 20 kDa.

1990 • 39 citations

NMR analysis of succinoglycans from different microbial sources: partial assignment of their 1H and 13C NMR spectra and location of the succinate and the acetate groups

1994 • 39 citations

Characterization and symbiotic importance of acidic extracellular polysaccharides of Rhizobium sp. strain GRH2 isolated from acacia nodules

1993 • 38 citations

Unusual structure of the exopolysaccharide of Rhizobium leguminosarum bv. viciae strain 248

1991 • 37 citations

Two Types of Nodules Induced on Trifolium pratense by Mutants of Rhizobium leguminosarum bv. trifolii deficient in Exopolysaccharide Production

1995 • 37 citations

The regulatory protein MucR binds to a short DNA region located upstream of the muc R coding region in Rhizobium meliloti

1997 • 36 citations

The structure of a novel polysaccharide produced by Bradyrhizobium species within soybean nodules

1995 • 35 citations

Gel-forming capsular polysaccharide of Rhizobium leguminosarum and Rhizobium trifolii

1983 • 35 citations

The Regulation of Exopolysaccharide Production Is Important at Two Levels of Nodule Development inRhizobium meliioti

1994 • 32 citations

Functional and evolutionary relatedness of genes for exopolysaccharide synthesis in Rhizobium meliloti and Rhizobium sp. strain NGR234

1990 • 32 citations

Gel-forming capsular polysaccharide of fast-growing rhizobia: occurrence and rheological properties

1984 • 31 citations

Formation of Novel Polysaccharides by Bradyrhizobium japonicum Bacteroids in Soybean Nodules

1992 • 31 citations

Further electron microscopic studies on the expression of Escherichia coli group II capsules

1990 • 30 citations

Five genetic loci involved in the synthesis of acidic exopolysaccharides are closely linked in the genome of Rhizobium sp strain NGR234

1988 • 29 citations

Identification and Characterization of a Gene on Rhizobium meliloti pSyma, syrB, That Negatively Affects syrM Expression

1997 • 28 citations

Effect of the concentration of sodium chloride in the medium on the relative proportions of poly- and oligo-saccharides excreted by Rhizobium meliloti strain YE-2SL

1991 • 27 citations

Biology of the Rhizobiaceae

1981 • 27 citations

Galactose metabolism in Rhizobium meliloti L5-30

1986 • 25 citations

mucS,a Gene Involved in Activation of Galactoglucan (EPS II) Synthesis Gene Expression inRhizobium meliloti

1996 • 25 citations

Isolation and Characterization of a Competition-Defective Bradyrhizobium japonicum Mutant

1991 • 23 citations

Structure and role in symbiosis of the exoB gene of Rhizobium leguminosarum bv trifolii

1997 • 20 citations

Pleiotropic Effects of RegulatoryrosMutants ofAgrobacterium radiobacterand Their Interaction with Fe and Glucose

1995 • 20 citations

Distribution of O-acetyl groups in the exopolysaccharide synthesized by Rhizobium leguminosarum strains is not determined by the Sym plasmid

1991 • 20 citations

The psi operon of Rhizobium leguminosarum biovar phaseoli: identification of two genes whose products are located at the bacterial cell surface

1994 • 18 citations

Expression of the exoY gene, required for exopolysaccharide synthesis in Agrobacterium, is activated by the regulatory ros gene

1996 • 18 citations

Acidic conditions permit effective nodulation of alfalfa by invasion-deficient Rhizobium meliloti exoD mutants.

1991 • 17 citations

Leucaena leucocephalaNodules Formed by a Surface Polysaccharide Defective Mutant ofRhizobiumsp. Strain TAL1145 Are Delayed in Bacteroid Development and Nitrogen Fixation

1996 • 14 citations

The symbiotic phenotypes of exopolysaccharide-defective mutants of Rhizobium sp. strain TAL1145 do not differ on determinate- and indeterminate-nodulating tree legumes

1997 • 13 citations

Factors Influencing the Synthesis of Polysaccharide by Bradyrhizobium japonicum Bacteroids in Field-Grown Soybean Nodules

1994 • 13 citations

Nodule formation in soybeans by exopolysaccharide mutants of Rhizobium fredii USDA 191

1990 • 12 citations

Sequence and regulation of psrA, a gene on the Sym plasmid of Rhizobium leguminosarum biover phaseoli which inhibits transcription of the psi genes

1994 • 12 citations

Disturbed gene expression and bacteroid development in Trifolium pratense root nodules induced by a Tn5 mutant of Rhizobium leguminosarum bv. trifolii defective in exopolysaccharide synthesis

1995 • 11 citations

Cooperativity between Rhizobium Mutant Strains: Induction of Nitrogen-fixing Nodules on the Tropical Legume Leucaena leucocephala

1987 • 11 citations

Recent Developments in Rhizobium Polysaccharides

1990 • 10 citations

Bradyrhizobium japonicumMutants Deficient in Exo- and Capsular Polysaccharides Cause Delayed Infection and Nodule Initiation

1996 • 10 citations

The Impairment of the Nodulation Process, Induced by a Bradyrhizobium japonicum Exopolysaccharide Mutant is Determined by the Genotype of the Host Plant

1994 • 8 citations

PLANT DEFENCE IN ALFALFA PSEUDONODULES INDUCED BY AN EXOPOLYSACCHARIDE (EPS I) - DEFICIENT SYMBIONT (RHIZOBIUM MELILOTI)

1994 • 6 citations

Role in Nodulation and Genetic Regulation of Exopolysaccharide Synthesis in Rhizobium Meliloti

1993 • 5 citations

Nitrogen Fixation: Fundamentals and Applications

1996 • 5 citations

Regulation study of exopolysaccharide synthesis, exoX and exoY in Rhizobium sp. strain NGR234

1992 • 4 citations

Exopolysaccharide-deficient mutants of Astragali rhizobia are symbiotically effective on Astragalus sinicus, an indeterminate nodulating host

1996 • 2 citations