HETEROCYST FORMATION

Green Fluorescent Protein as a Marker for Gene Expression

1994 • 6,572 citations

COMMUNICATION MODULES IN BACTERIAL SIGNALING PROTEINS

1992 • 1,449 citations

ABC transporters: bacterial exporters

1993 • 607 citations

Oxygen relations of nitrogen fixation in cyanobacteria

1992 • 557 citations

[83] Conjugal transfer of DNA to cyanobacteria

1988 • 552 citations

Heterocyst Metabolism and Development

1994 • 510 citations

Crisscross regulation of cell-type-specific gene expression during development in B. subtilis

1992 • 385 citations

Spatial expression and autoregulation of hetR, a gene involved in the control of heterocyst development in Anabaena

1993 • 370 citations

Reconciling the incompatible: N₂ fixation And O₂

1992 • 363 citations

Construction of shuttle vectors capable of conjugative transfer from Escherichia coli to nitrogen-fixing filamentous cyanobacteria.

1984 • 316 citations

Characterization of a gene controlling heterocyst differentiation in the cyanobacterium Anabaena 7120.

1991 • 316 citations

Heterocysts

1978 • 316 citations

CYANOBACTERIAL CELL INCLUSIONS

1984 • 281 citations

Growth and Heterocyst Production in Anabaena Cylindrica Lemm

1949 • 263 citations

Hopanoid lipids compose the Frankia vesicle envelope, presumptive barrier of oxygen diffusion to nitrogenase.

1993 • 244 citations

Is the Heterocyst the Site of Nitrogen Fixation in Blue-green Algae?

1968 • 236 citations

Use of a transposon with luciferase as a reporter to identify environmentally responsive genes in a cyanobacterium.

1991 • 232 citations

Developmental regulation and spatial pattern of expression of the structural genes for nitrogenase in the cyanobacterium Anabaena.

1990 • 224 citations

Requirement of the regulatory protein NtcA for the expression of nitrogen assimilation and heterocyst development genes in the cyanobacterium Anabaena sp. PCC7120

1994 • 213 citations

Molecular mechanism for the operation of nitrogen control in cyanobacteria.

1994 • 212 citations

ELECTRON MICROSCOPE STUDIES ON BLUE-GREEN ALGAE

1961 • 202 citations

Anabaena sp. strain PCC 7120 ntcA gene required for growth on nitrate and heterocyst development

1994 • 195 citations

NtcA, a global nitrogen regulator from the cyanobacterium Synechococcus that belongs to the Crp family of bacterial regulators

1992 • 184 citations

Physiology and cytological chemistry blue-green algae

1973 • 175 citations

Rule governing Cell Division in Anabaena

1972 • 174 citations

Movement of Carbon from Vegetative Cells to Heterocysts in Anabaena cylindrica

1968 • 173 citations

Genetic evidence of a major role for glucose-6-phosphate dehydrogenase in nitrogen fixation and dark growth of the cyanobacterium Nostoc sp. strain ATCC 29133

1995 • 169 citations

Pattern formation in the blue-green alga,Anabaena: I. basic mechanisms

1973 • 167 citations

Analysis of a Het- mutation in Anabaena sp. strain PCC 7120 implicates a secondary metabolite in the regulation of heterocyst spacing

1994 • 166 citations

The patA gene product, which contains a region similar to CheY of Escherichia coli, controls heterocyst pattern formation in the cyanobacterium Anabaena 7120.

1992 • 164 citations

Programmed DNA rearrangement of a cyanobacterial hupL gene in heterocysts.

1995 • 151 citations

Characterization of genes for an alternative nitrogenase in the cyanobacterium Anabaena variabilis

1993 • 149 citations

The permeability of heterocysts to the gases nitrogen and oxygen

1985 • 148 citations

Activities of Enzymes of the Oxidative and the Reductive Pentose Phosphate Pathways in Heterocysts of a Blue-Green Alga

1973 • 140 citations

A second nitrogenase in vegetative cells of a heterocyst-forming cyanobacterium.

1995 • 139 citations

Isolation and complementation of mutants of Anabaena sp. strain PCC 7120 unable to grow aerobically on dinitrogen

1988 • 139 citations

A temporally controlled sigma-factor is required for polar morphogenesis and normal cell division in Caulobacter.

1992 • 128 citations

Synthesis of nitrogenase in mutants of the cyanobacterium Anabaena sp. strain PCC 7120 affected in heterocyst development or metabolism

1992 • 128 citations

Evidence that the barrier to the penetration of oxygen into heterocysts depends upon two layers of the cell envelope

1989 • 127 citations

The program of protein synthesis during heterocyst differentiation in nitrogen-fixing blue-green algae

1974 • 120 citations

Two Anabaena sp. strain PCC 7120 DNA-binding factors interact with vegetative cell- and heterocyst-specific genes

1994 • 116 citations

Independent regulation of nifHDK operon transcription and DNA rearrangement during heterocyst differentiation in the cyanobacterium Anabaena sp. strain PCC 7120

1991 • 116 citations

A new RNA polymerase sigma factor, σ^F is required for the late stages of morphological differentiation in Streptomyces spp.

1995 • 115 citations

Pattern formation in the blue-green alga Anabaena ii. controlled proheterocyst regression

1973 • 115 citations

Isolation and complementation of nitrogen fixation mutants of the cyanobacterium Anabaena sp. strain PCC 7120

1991 • 115 citations

Physical and genetic maps of the genome of the heterocyst-forming cyanobacterium Anabaena sp. strain PCC 7120

1989 • 113 citations

Identification of multiple RNA polymerase sigma factor homologs in the cyanobacterium Anabaena sp. strain PCC 7120: cloning, expression, and inactivation of the sigB and sigC genes

1992 • 108 citations

Identification and characterization of hetA, a gene that acts early in the process of morphological differentiation of heterocysts

1990 • 106 citations

Molecular cloning and nucleotide sequence analysis of the gene coding for heterocyst ferredoxin from the cyanobacterium Anabaena sp. strain PCC 7120

1988 • 105 citations

Control of phycobiliprotein proteolysis and heterocyst differentiation in Anabaena

1980 • 103 citations

The hglK gene is required for localization of heterocyst-specific glycolipids in the cyanobacterium Anabaena sp. strain PCC 7120

1995 • 103 citations

Molecular Genetics of Cyanobacterial Development

1993 • 103 citations

High recovery of nitrogenase activity and of ⁵⁵ Fe-labeled nitrogenase in heterocysts isolated from Anabaena variabilis

1978 • 101 citations

Transposon mutagenesis of Nostoc sp. strain ATCC 29133, a filamentous cyanobacterium with multiple cellular differentiation alternatives

1994 • 97 citations

Formation of one-dimensional patterns by stochastic processes and by filamentous blue-green algae

1975 • 95 citations

Lipids of membranes and of the cell envelope in heterocysts of a blue-green alga

1972 • 94 citations

Genetic Analysis of Cyanobacteria

1994 • 88 citations

Transcription of the Anabaena sp. strain PCC 7120 ntcA gene: multiple transcripts and NtcA binding

1996 • 87 citations

Physiological basis of the pattern of vegetative growth of a blue-green alga.

1967 • 81 citations

Glycosyl transferases of O-antigen biosynthesis in Salmonella enterica: identification and characterization of transferase genes of groups B, C2, and E1

1993 • 79 citations

Isolation and preliminary characterization of auxotrophs of a filamentous Cyanobacterium

1977 • 79 citations

Calcium-dependent protease of the cyanobacterium Anabaena: molecular cloning and expression of the gene in Escherichia coli, sequencing and site-directed mutagenesis

1991 • 76 citations

The patB gene product, required for growth of the cyanobacterium Anabaena sp. strain PCC 7120 under nitrogen-limiting conditions, contains ferredoxin and helix-turn-helix domains

1993 • 75 citations

Modes of reduction of nitrogenase in heterocysts isolated from Anabaena species

1978 • 75 citations

Prokaryotic HU and eukaryotic HMG1: a kinked relationship

1994 • 75 citations

Amplified expression of a transcriptional pattern formed during development of Anabaena

1993 • 71 citations

The polysaccharides from heterocyst and spore envelopes of a blue-green alga. Structure of the basic repeating unit.

1979 • 70 citations

A gene cluster involved in aerial mycelium formation in Streptomyces griseus encodes proteins similar to the response regulators of two-component regulatory systems and membrane translocators

1993 • 70 citations

The Developmental Biology of Heterocyst and Akinete Formation in Cyanobacteria

1981 • 70 citations

Amino acid transport systems required for diazotrophic growth in the cyanobacterium Anabaena sp. strain PCC 7120

1995 • 69 citations

Distinct and differently regulated Mo‐dependent nitrogen‐fixing systems evolved for heterocysts and vegetative cells of Anabaena variabilis ATCC 29413: characterization of the fdxH1/2 gene regions as part of the nif1/2 gene clusters

1995 • 66 citations

Electron Transport Regulates Cellular Differentiation in the Filamentous Cyanobacterium Calothrix.

1993 • 66 citations

Immuno-gold localization of glutamine synthetase in a nitrogen-fixing cyanobacterium (Anabaena cylindrica)

1985 • 62 citations

Cloning and analysis of a gene cluster from Streptomyces coelicolor that causes accelerated aerial mycelium formation in Streptomyces lividans

1994 • 61 citations

Dinitrogenase reductase (Fe-protein) of nitrogenase in the cyanobacterial symbionts of three Azolla species: Localization and sequence of appearance during heterocyst differentiation

1988 • 60 citations

Two mutations that block heterocyst differentiation have different effects on akinete differentiation in Nostoc ellipsosporum

1994 • 58 citations

Estimation of gene expression in heterocysts of Anabaena variabilis by using DNA-RNA hybridization

1986 • 57 citations

A sequence-specific DNA-binding factor (VF1) from Anabaena sp. strain PCC 7120 vegetative cells binds to three adjacent sites in the xisA upstream region

1990 • 56 citations

Growth and Heterocyst Production in Anabaena cylindrica Lemm

1951 • 56 citations

Evidence that the hanA gene coding for HU protein is essential for heterocyst differentiation in, and cyanophage A-4(L) sensitivity of, Anabaena sp. strain PCC 7120

1996 • 56 citations

Mutants of Anabaena cylindrica altered in heterocyst spacing

1975 • 52 citations

Development-specific sigma-factor essential for late-stage differentiation of Myxococcus xanthus.

1990 • 52 citations

A third genetic locus required for the formation of heterocysts in Anabaena sp. strain PCC 7120

1994 • 50 citations

Characterization of devA, a gene required for the maturation of proheterocysts in the cyanobacterium Anabaena sp. strain PCC 7120

1994 • 48 citations

Alteration in Heterocyst Pattern of Anabaena produced by 7-Azatryptophan

1973 • 48 citations

Heterocyst glycolipids of the cyanobacterium Cyanospira rippkae

1993 • 44 citations

Phosphorylation and nitrogenase activity in isolated heterocysts from Anabaena variabilis (ATCC 29413)

1983 • 43 citations

Expression of luxCD-E in Anabaena sp. can replace the use of exogenous aldehyde for in vivo localization of transcription by luxAB

1994 • 42 citations

Purification and partial characterization of a calcium‐stimulated protease from the cyanobacterium, Anabaena variabilis

1988 • 41 citations

Modeling the C Economy of Anabaena flos-aquae

1985 • 40 citations

Expression of luciferases from Vibrio harveyi and Vibrio fischeri in filamentous cyanobacteria

1986 • 40 citations

Metabolic activities of isolated akinetes of the cyanobacterium Nostoc spongiaeforme

1983 • 40 citations

Induction by Ultraviolet Irradiation of Mutation in the Blue–Green Alga Nostoc linckia (Roth) Born. et Flah.

1969 • 39 citations

Protein Synthesis and Degradation in Anabaena During Nitrogen Starvation

1979 • 38 citations

High‐resolution mapping of genetic loci of Anabaena PCC 7120 required for photosynthesis and nitrogen fixation

1993 • 37 citations

Tn5 mutagenesis of Anabaena sp. strain PCC 7120: isolation of a new mutant unable to grow without combined nitrogen

1989 • 37 citations

Sequence-specific endonucleases in strains of Anabaena and Nostoc

1983 • 37 citations

One-dimensional Pattern found in Blue-Green Algae

1970 • 35 citations

Genetic Recombination in a Blue-green Alga, Cylindrospermum majus Kuetz.

1965 • 33 citations

Variations in the amino acid composition of cyanophycin in the cyanobacterium Synechocystis sp. PCC 6308 as a function of growth conditions

1994 • 33 citations

Structure of the “heterocyst glycolipids” of the marine cyanobacterium Nodularia harveyana

1992 • 32 citations

Heterocyst differentiation and tryptophan metabolism in the cyanobacterium Anabaena sp. CA

1980 • 29 citations

Modifiers of heterocyst repression and spacing and formation of heterocysts without nitrogenase in the cyanobacterium Anabaena variabilis

1979 • 29 citations

Two heterocyst-specific DNA rearrangements of nif operons in Anabaena cylindrica and Nostoc sp. strain Mac

1995 • 29 citations

Protein HU from the cyanobacterium Anabaena

1994 • 28 citations

Heterocyst Development in Anabaena cylindrica: The Necessity for Light as an Initial Trigger and Sequential Stages of Commitment

1977 • 28 citations

PROTEIN TURNOVER AND HETEROCYST DIFFERENTIATION IN THE CYANOBACTERIUM ANABAENA VARIABILIS¹

1990 • 28 citations

Heterocyst differentiation and cell division in the cyanobacterium Anabaena cylindrical effect of high light intensity

1981 • 26 citations

Amino acid residues involved in functional interaction of vegetative cell ferredoxin from the cyanobacterium Anabaena sp. PCC 7120 with ferredoxin:NADP reductase, nitrite reductase and nitrate reductase

1995 • 24 citations

Mutagenesis of the blue-green alga, Anabaena doliolum Bharadwaja

1976 • 23 citations

Measurement of an Inhibitory Zone

1976 • 21 citations

Reinvestigation of heterocyst glycolipids from the cyanobacterium, Anabaena cylindrica

1995 • 18 citations

Metabolism of sulfur compounds by whole filaments and heterocysts of Anabaena variabilis

1981 • 18 citations

Conduction of pEC22, a plasmid coding for MR.EcoT22I, mediated by a resident Tn3-like transposon, Tn5396

1994 • 17 citations

Expression of the Movement Protein of Tobacco Mosaic Virus in the CyanobacteriumAnabaenasp. Strain PCC 7120

1995 • 12 citations

Molecular Genetics of Nitrogen Fixation in Photosynthetic Prokaryotes

1995 • 12 citations

Synthesis of (3R,25R)‐3,25‐dihydroxyhexacosyl α‐<scp>D</scp>‐glucopyranoside, the heterocyst glycolipid of the marine cyanobacterium Nodularia harveyana

1994 • 10 citations

Vectors for determining the differential expression of genes in heterocysts and vegetative cells of Anabaena sp. strain PCC 7120

1995 • 10 citations

Developmentally Regulated Gene Rearrangements in Prokaryotes

1992 • 5 citations

FREQUENT HETEROCYST GERMINATION IN THE BLUE-GREEN ALGA GLOEOTRICHIA GHOSEI SINGH1

1970 • 5 citations

POLYSACCHARIDES FROM THE ENVELOPES OF HETEROCYSTS AND SPORES OF THE BLUE-GREEN ALGAE ANABAENA VARIABILIS AND CYLINDROSPERMUM LICHENIFORME1

1981 • 4 citations

Genetic evidence that hepA gene is involved in the normal deposition of the envelope of both heterocysts and akinetes in Anabaena variabilis ATCC 29413

1994 • 3 citations

A comparison of gene organization in the zwf region of the genomes of the cyanobacteria Synechococcus sp. PCC 7942 and Anabaena sp. PCC 7120

1995 • 2 citations

Cyclic AMP interferes with pattern formation in the cyanobacterium Anabaena variabilis

1981 • 2 citations

A novel genome rearrangement involved in heterocyst differentiation of the cyanobacterium Anabaena sp. PCC 7120

1994 • 2 citations

DNA content of heterocysts and spores of the filamentous cyanobacterium Anabaena variabilis

1980 • 2 citations