Reference health
The structural nif genes of the cyanobacteria Gloeothece sp. and Calothrix sp. share homology with those of Anabaena sp., but the Gloeothece genes have a different arrangement
20/20 checkable references clean · checked 2026-07-23
Every reference with a DOI in the deposited reference list resolved to a known work in Crossref or DataCite at the dated check, and none carried a retraction, withdrawal, or removal notice.
7 without a DOI — not checked. A reference deposited without a DOI is never matched by title or guessed at; it stays outside the checked set, and this line discloses that.
The 20 checked references that resolve
resolves10.1099/00221287-113-2-229
Identification and Characterization of Large Plasmids in Rhizobium meliloti using Agarose Gel Electrophoresis
resolves10.1128/jb.149.1.221-228.1982
Clustering of nitrogen fixation (nif) genes in Rhizobium meliloti
resolves10.1139/m72-050
Characteristics of nitrogenase activity in broken cell preparations of the blue-green alga <i>Gloeocapsa</i> sp. LB 795
resolves10.1007/BF00422779
Linkage of genes for nitrogenase and nodulation ability on plasmids in Rhizobium leguminosarum and R. phaseoli
resolves10.1016/S0022-2836(61)80047-8
A procedure for the isolation of deoxyribonucleic acid from micro-organisms
resolves10.1073/pnas.77.1.186
Identification of blue-green algal nitrogen fixation genes by using heterologous DNA hybridization probes
resolves10.1128/jb.149.1.114-122.1982
Physical and genetic characterization of symbiotic and auxotrophic mutants of Rhizobium meliloti induced by transposon Tn5 mutagenesis
resolves10.1073/pnas.77.11.6476
Nucleotide sequence of a cyanobacterial
<i>nifH</i>
gene coding for nitrogenase reductase
resolves10.1016/S0021-9258(18)33636-6
Isolation and physical mapping of nitrogen fixation genes from the cyanobacterium Anabaena 7120.
resolves10.1016/0022-2836(77)90052-3
Labeling deoxyribonucleic acid to high specific activity in vitro by nick translation with DNA polymerase I
resolves10.1099/00221287-111-1-1
Generic Assignments, Strain Histories and Properties of Pure Cultures of Cyanobacteria
resolves10.1111/j.1574-6941.1980.tb01597.x
A METHOD FOR IMPROVED LYSIS OF SOME GRAM-NEGATIVE BACTERIA
resolves10.1016/0003-2697(80)90019-6
The bidirectional transfer of DNA and RNA to nitrocellulose or diazobenzyloxymethyl-paper
resolves10.1016/S0021-9258(19)69686-9
Nucleotide sequence of the gene coding for the nitrogenase iron protein from Klebsiella pneumoniae.
resolves10.1093/nar/9.21.5711
Nucleotide sequence of the R.meliloti nitrogenase reductase (nifH) gene
resolves10.2216/i0031-8884-12-3-153.1
An examination of three strains of the blue-green algal genus, Fremyella
The 7 references without a DOI — listed, not checked
no DOI — not checkedBogwrad L. S. M. Gendel J. H. Haury and K.-P. Koller. 1983. Photomorphogenesis and complementary chromatic adaptation in Fremyella diplosiphon p. 119-126. In G. C. Papageorgiou and L. Packer (ed.) Photosynthetic prokaryotes: cell differentiation and function. Elsevier New York.
no DOI — not checkedDavis R. W. D. Botstein and J. R; Roth. 1980. Advanced bacterial genetics p. 116-127. Cold Spring Harbor Laboratory Cold Spring Harbor N.Y.
no DOI — not checkedGallon J. R. 1980. Nitrogen fixation by photoautotrophs p. 197-238. In W. D. P. Stewart and J. R. Gallon (ed.) Nitrogen fixation. Academic Press London.
no DOI — not checkedHaselkorn , R. 1978 . Heterocysts. Annu. Rev. Microbiol. 34 : 183 - 207 .
no DOI — not checkedKalla T. R. Rippkca T. Coursi M.-C. RebIsre N. Tandeau de Marc and G. Coben-Bazfre. 1983. Aerobic nitrogen fixation by nonheterocystous cyanobacteria p. 281-303. In G. C. Papageorgiou and L. Packer (ed.) Photosynthetic prokaryotes: cell differentiation and function. Elsevier New York.
no DOI — not checkedMerrick , M. , M. Filser , R. Dixon , C. Elmerich , L. Sibold , and J. Houmard . 1980 . The use of translocatable genetic elements to construct a fine-structure map of the Klebsiella pneumoniae nitrogen fixation (nif) gene cluster . J. Gen. Microbiol. 117 : 509 - 520 .
no DOI — not checkedScott , R. F. , B. G. Rolfe , and J. Shine . 1981 . Biological nitrogen fixation: primary structure of the Klebsiella pneumoniae nifH and nifD genes . J. Mol. Appl. Gen. 1 : 71 - 81 .
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