| characterization of dna from rhizobium cells and their bacteriods from root nodules. | | 1974 | 4417565 |
| large plasmid in agrobacterium tumefaciens essential for crown gall-inducing ability. | | 1974 | 4419109 |
| vitamin b12-dependent methionine synthesis in rhizobium meliloti. | | 1974 | 4422142 |
| plant cell transformation with bacteria. | | 1974 | 4424370 |
| genetic studies on rhizobiophage 16-3. ii. helper-induced transfection. | | 1974 | 4424649 |
| biological control of crown gall: seed and root inoculation. | | 1974 | 4436158 |
| the presence of defective prophages in agrobacterium tumefaciens, strains 806 and b6s. | | 1974 | 4437681 |
| streptomycin resistance in rhizobium japonicum. | | 1974 | 4441216 |
| formation and utilisation of carbon reserves by rhizobium. | | 1974 | 4441218 |
| continuous production of urocanic acid by immobilized achromobacter liquidum cells. | | 1974 | 4441634 |
| studies on the bacteriophage ps-8 of agrobacterium tumefaciens (smith and townsend) conn: purification and properties. | | 1974 | 4451429 |
| [induction of virulent mutants of temperate phages of indicator cultures as a cause of possible erroneous conclusions]. | | 1974 | 4453219 |
| unidirectional growth and branch formation of a morphological mutant, agrobacterium tumefaciens. | morphological characteristics of thermoconditional mutant agrobacterium tumefaciens f-502 were investigated in relation to growth, division, and synthesis of cellular components. as a result of a shift from 27 to 37 c, mutant cells altered their morphology from short rods to elongated and branched forms; in addition, division and deoxyribonucleic acid synthesis were inhibited at 37 c. at 37 c unidirectional cell growth and branch formation occurred at one end of a cell, and the elongation rate o ... | 1974 | 4455684 |
| proceedings: investigation of the nucleoside metabolism in rhizobium lupini: obligatory thymidine phosphorylase deficiency. | | 1974 | 4461554 |
| [photosynthesis in lupin leaves in relation to the effectiveness of symbiosis between plant and nodule bacteria]. | | 1974 | 4461738 |
| the nucleoside triphosphate-ribonucleic acid nucleotidyltransferase (ec 2.7.7.6) of agrobacterium tumefaciens (smith and townsend) conn. purification and properties of the enzyme from the tumorigenic strain b6806. | the rna nucleotidyltransferase (rna polymerase) of the plant-tumorigenic bacterium agrobacterium tumefaciens was purified. the method involves the disruption of the bacterial cells with glass beads in a waring blendor, treatment with deae-cellulose, fractionation with (nh(4))(2)so(4), protamine sulphate precipitation, deae-cellulose column chromatography and either glycerol-gradient centrifugation or phosphocellulose chromatography. the subunit structure of the highly purified enzyme is similar ... | 1974 | 4462737 |
| [antibody formation against agrobacterium tumefaciens in patients with various cancers]. | | 1974 | 4463498 |
| physiological comparisons of transformed (crown gall) and nontransformed vinca rosea l. cells. | | 1974 | 4471192 |
| regulation of amino acid and glucose dissimilation in so-called ammonifiers and in other soil microorganisms. | | 1974 | 4474858 |
| transformation of effectiveness in rhizobium japonicum. | | 1974 | 4477931 |
| induced variations in microorganisms. v. genetic transformation in rhizobium. | | 1974 | 4479371 |
| effect of certain fungicides on some rhizobia-legume-symbiotic systems. | | 1974 | 4479377 |
| vertical movement of rhizobia in soil. | | 1974 | 4479490 |
| promiscuity in groundnut rhizobium association. | | 1974 | 4479503 |
| effect of some pelleting agents and sodium humate as spray on dry matter yield and nutrient uptake of soybean (glycine max l. cv bragg) in a saline-sodic soil. | | 1974 | 4480492 |
| some studies on the groundnut rhizobium symbiosis. | | 1974 | 4480493 |
| nodulation of soybean under field conditions. | | 1974 | 4480504 |
| induced variations in microorganisms. i. the mutagenic effect of ultraviolet light on rhizobium trifolii. | | 1972 | 4484559 |
| transmissible resistance to penicillin g, neomycin, and chloramphenicol in rhizobium japonicum. | the genetic basis for resistance to a number of antibiotics was examined in rhizobium japonicum. resistance to penicillin g, neomycin, and chloramphenicol appears to be mediated by an extrachromosomal element similar to that found in the enterobacteriaceae. resistance to these antibiotics was eliminated from cells by treatment with acridine orange, and resistance to all three antibiotics could be transferred en bloc to agrobacterium tumefaciens under conditions excluding transformation or transd ... | 1973 | 4491197 |
| [change in specificity of pea nodule bacteria mutants]. | | 1974 | 4495004 |
| virulent bacteriophage infection of rhizobium leguminosarum. | | 1972 | 4502500 |
| [description of 2 new species of bactera isolated from pozol: agrobacterium azotophilum and achromobacter pozolis]. | | 1972 | 4509280 |
| possible role of phytohaemagglutinin in phaseolus vulgaris l. | | 1973 | 4516940 |
| evidence for common genetic determinants of nitrogenase and nitrate reductase in rhizobium meliloti. | | 1973 | 4519145 |
| [fixation of nitrogen in vitro by agrobacterium azotophilum in various substrates, especially soil and by-products of the sugar industry]. | | 1973 | 4524329 |
| isolation of the tumor-inducing rna from oncogenic and nononcogenic agrobacterium tumefaciens. | two rna fractions have been isolated and purified from both oncogenic and nononcogenic strains of agrobacterium tumefaciens. both rnas are capable of inducing the formation of transplantable tumors when introduced at wound sites in stems of datura stramonium plants. one of these rna fractions was found to be bound to an rna-directed dna polymerase, while the other was associated with the bacterial dna. physical evidence suggests that both are single stranded and small in size; linear sucrose gra ... | 1974 | 4525450 |
| agrobacterium tumefaciens dna and ps8 bacteriophage dna not detected in crown gall tumors. | renaturation kinetics of labeled agrobacterium tumefaciens dna are not influenced by addition of 10(4)-fold excess of crown gall tumor dna. reconstruction experiments demonstrated that 0.01% added bacterial dna produces a detectable increase in rate of renaturation of labeled dna. crown gall tumor dna therefore cannot contain as much as 0.01% a. tumefaciens dna (one entire bacterial genome per three diploid tumor cells). by the same technique, ps8 bacteriophage dna is not detected in crown gall ... | 1974 | 4530328 |
| quantitative estimation of agrobacterium tumefaciens dna in crown gall tumor cells. | several reports suggest that agrobacterium tumefaciens nucleic acids can induce transformation of the cells of susceptible host plants and that bacteria-free tissue cultures of transformed cells contain a. tumefaciens dna, rna, antigens, or bacteriophages. we assayed vinca rosea tumor dna for base sequence homologies with a. tumefaciens dna by dna.dna solution enrichment and dna.dna filter saturation hybridization techniques. no homologies were found by either method. the filter saturation hybri ... | 1974 | 4530329 |
| deoxyribonucleate binding and transformation in rhizobium jpaonicum. | rhizobium japonicum, capable of binding high-molecular-weight donor (32)p-labeled deoxyribonucleic acid (dna) during late log phase in a competence medium, was transformed for streptomycin resistance with a frequency of transformation ranging between 0.02 and 0.08%. eight to 10% of the homologous native (32)p-labeled input dna was bound irreversibly in a temperature-dependent manner. homologous denatured (32)p-labeled dna was incapable of binding to the recipient under similar conditions. cscl d ... | 1972 | 4538250 |
| composition of extracellular polysaccharides of rhizobium trifolii. | | 1972 | 4538630 |
| transformation of agrobacterium tumefaciens into a non-oncogenic species by an escherichia coli rna. | transforming rna excreted by showdomycin-resistant escherichia coli induces a persistent, heritable, and spectacular change in agrobacterium tumefaciens b(6), a bacterium that carries the oncogenic principle for tumor induction in plants. transformants possessing new physiological and biochemical properties have completely or partially lost the capacity for tumor induction. they synthetize new ribosomes whose components are profoundly modified. on the basis of biological and biochemical characte ... | 1972 | 4550504 |
| the inception phase in the crown gall disease. | | 1972 | 4552168 |
| the development of a capacity for autonomous growth of the crown gall tumor cell. | | 1972 | 4552169 |
| base ratio determination using unpurified dna. | | 1972 | 4552878 |
| isolation of morphological mutants of agrobacterium tumefaciens. | morphological mutants were isolated from a wild strain of agrobacterium tumefaciens at a high frequency by treatment with a nitrosoguanidine. seventeen of the 20 mutants isolated were temperature-sensitive. at 27 c, the mutant cells were rod-shaped and at 37 c, spherical or branched, whereas the wild-type cells were rod-shaped at both temperatures. | 1972 | 4553841 |
| host ranges of r factors. | | 1972 | 4556251 |
| bacterial rna synthesis in frog auricles after intraperitoneal injection of bacteria. | | 1972 | 4556505 |
| the nitrogen fixation genes. | | 1972 | 4563018 |
| bacterial ribonucleic acid synthesis in frog organs after intraperitoneal injection of bacteria. | | 1972 | 4564253 |
| compatibility of different fungicides with rhizobium japonicum. | | 1972 | 4564552 |
| activity, ecology, and population dynamics of microorganisms in soil. | | 1972 | 4567450 |
| enzymatic synthesis of deoxypseudouridylic acid and a study of certain of its properties. | | 1972 | 4569284 |
| pseudouridine, isolation and biosynthesis of the nucleoside isolated from the culture filtrates of streptoverticillium ladakanus. | | 1972 | 4570247 |
| the possible importance of transfer factors in the bacterial degradation of herbicides in natural ecosystems. | | 1972 | 4570406 |
| biological hydroxylation reactions. | | 1972 | 4570968 |
| deep-freezing of bacterial dna for thermal denaturation and hybridization experiments. | | 1973 | 4578059 |
| the isolation of the plasma membrane from a gram-negative organism. | | 1973 | 4579736 |
| a simple medium for quick growth of rhizobium japonicum. | | 1973 | 4580100 |
| characteristics of greek isolates of agrobacterium tumefaciens (e. f. smith & townsend) conn. | | 1973 | 4583867 |
| analysis of the intracellular amino acid pool and proteins from whole cells of rhizobium japonicum. | | 1973 | 4583873 |
| genetic and phenetic classification of bacteria. | | 1973 | 4584677 |
| transformation and physical properties of r-factor rp4 transferred from escherichia coli to rhizobium trifolii. | transformation of r-factor rp4 specifying resistance to ampicillin, kanamycin, and tetracycline from escherichia coli to rhizobium trifolii is reported. partially purified rp4 deoxyribonucleic acid (dna) of the donor strain e. coli j5-3 that carried the r-factor was prepared by the lysozyme-ethylenediaminetetraacetic acid-triton x-100 procedure and was used in transformation experiments with r. trifolii as recipient. the frequency of transformation of the r-factor into r. trifolii was 1.3 x 10(- ... | 1973 | 4584801 |
| estimating the density of individual bacterial populations introduced into natural ecosytems. | | 1973 | 4588655 |
| relatedness among rhizobium and agrobacterium species determined by three methods of nucleic acid hybridization. | deoxyribonucleic acid (dna) was isolated from 20 strains of rhizobium and agrobacterium and from one strain of serratia marcescens; the guanine plus cytosine content of each dna sample was determined by thermal denaturation. radioactive dna was isolated from three reference strains following the uptake of [2-(14)c]thymidine in the presence of deoxyadenosine. ribonucleic acid (rna) polymerase was used to synthesize radioactive rna on dna templates from the three reference strains. radioactive dna ... | 1972 | 4591471 |
| [biosynthesis and oxidation of fatty acids of normal structure with an uneven number of carbon atoms, branched and cyclopropane]. | | 1973 | 4592196 |
| effect of phenolic compounds on the growth of rhizobia. | | 1973 | 4595822 |
| on a eukaryotic cell-transformation by a bacterium. | | 1974 | 4597805 |
| [a method of separating slowly growing strains of nodular bacteria from slime]. | | 1974 | 4598406 |
| r factor transfer in rhizobium leguminosarum. | | 1974 | 4612098 |
| effect of additional shots on growth of rhizobium trifolii in relation to mass cultivation of rhizobia. | | 1973 | 4613718 |
| [symbiotic fixation of molecular nitrogen]. | | 1974 | 4618273 |
| [natural electron donors in the process of nitrogen fixation]. | | 1974 | 4619170 |
| the carriage of rhizobium by leguminous seeds after floral spray. | | 1974 | 4619550 |
| asymbiotic nitrogen-fixing bacteria from the surfaces of nodules and roots of legumes. | | 1972 | 4622039 |
| detection of acidic polysaccharides in gels by deae-dextran. | | 1972 | 4623508 |
| a survey of rhizobia in farm soils at wye college, kent. | | 1972 | 4623604 |
| [study of the structure and degradation of ribosomal ribonucleic acids of some bacteria of the genus agrobacterium]. | | 1972 | 4625639 |
| inhibition of fungal growth and sporulation by volatile metabolites from bacteria. | | 1972 | 4627147 |
| [effect of bacterial attenuation on expression of the oncogenic capacity of agrobacterium tumefaciens]. | | 1972 | 4628302 |
| utilization of single l-amino acids as sole source of carbon and nitrogen by bacteria. | | 1972 | 4628671 |
| bacterial ribonucleic acid in the frog brain after a bacterial peritoneal infection. | frogs were injected intraperitoneally with bacteria, and the rna of the brains (which have protective barriers against the bacteria used) was extracted. part of the rna was bacterial rna apparently resulting from the transcription of dna transferred from bacteria to the brain cells. | 1972 | 4628710 |
| surface changes in a strain of rhizobium trifolii on mutation to bacteriophage resistance. | | 1972 | 4630546 |
| [relationship between l-asparaginase activity and the oncogenic power of different agrobacterium tumefaciens mutants (smith and town.) conn]. | | 1972 | 4630665 |
| [loss of virulence associated with loss of an enzyme activity in agrobacterium tumefaciens]. | | 1972 | 4631534 |
| [transduction of a gene controlling the expression of nitrogen fixation in rhizobium meliloti]. | | 1972 | 4631535 |
| adpg synthetase and adpg- -glucan 4-glucosyl transferase: enzymes involved in bacterial glycogen and plant starch synthesis. | | 1973 | 4633325 |
| transcription of spontaneously released bacterial deoxyribonucleic acid in frog auricles. | after frog auricles have been in contact with a suspension of bacteria or bacteria-free supernatant fluid, newly synthesized bacterial ribonucleic acid (rna) is recovered in animal cells. it appears that the presence of bacterial deoxyribonucleic acid (dna)-dependent rna polymerase is necessary for the transcription of bacterial dna in the host cells. this phenomenon seems to be related to a transfer of dna and dna-dependent rna polymerase from bacteria into animal cells. | 1973 | 4633340 |
| [theoretical bases for studying the interaction of soil microoganisms and higher plants]. | | 1973 | 4633761 |
| [physical method for the isolation of dna]. | | 1972 | 4649810 |
| starch gel electrophoresis of catalase and esterase isoenzymes from some rhizobium and agrobacterium spp. | | 1972 | 4651254 |
| [carbon monoxide and hydrogen production in marine microorganisms on culture medium containing synthetic seawater]. | | 1972 | 4657655 |
| ultrastructure of stable l phase of agrobacterium tumefaciens causing tumor fromation in phaseolus vulgaris l. | | 1972 | 4663991 |
| [structure and chemical composition of lipopolysaccharides of l forms of agrobacterium tumefaciens]. | | 1972 | 4664780 |
| microbial metabolism of the pyridine ring. formation of pyridinediols (dihydroxypyridines) as intermediates in the degradation of pyridine compounds by micro-organisms. | 1. several species of micro-organisms that were capable of utilizing pyridine compounds as carbon and energy source were isolated from soil and sewage. compounds degraded included pyridine and the three isomeric hydroxypyridines. 2. suitable modifications of the cultural conditions led to the accumulation of pyridinediols (dihydroxypyridines), which were isolated and characterized. 3. three species of achromobacter produced pyridine-2,5-diol from 2- or 3-hydroxypyridine whereas an uncommon agrob ... | 1972 | 4664939 |
| [action of fast neutrons on the nodule bacteria of clover and pea]. | | 1972 | 4667021 |
| [role of cobalt in the physiology of nitrogen-fixing microorganisms and in the fixation of molecular nitrogen]. | | 1972 | 4670422 |
| inhibition of fungi, actinomycetes and bacteria by stachybotrys atra. | | 1972 | 4672270 |
| electron microscopy of lipopolysaccharides from erwinia carotovora and the bacillary and l forms of agrobacterium tumefaciens. | | 1972 | 4673374 |
| the redox potential of leghaemoglobin. | | 1972 | 4674605 |
| preparation of nitrogenase from nodules and separation into components. | | 1972 | 4677585 |