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Akademický článek

Role of Two Cell Wall Amidases in Septal Junction and Nanopore Formation in the Multicellular Cyanobacterium Anabaena sp. PCC 7120

Autor: Jan Bornikoel, Alejandro Carrión, Qing Fan, Enrique Flores, Karl Forchhammer, Vicente Mariscal, Conrad W. Mullineaux, Rebeca Perez, Nadine Silber, C. Peter Wolk, Iris Maldener

Publikováno v: Frontiers in Cellular and Infection Microbiology, Vol 7 (2017)

Filamentous cyanobacteria have developed a strategy to perform incompatible processes in one filament by differentiating specialized cell types, N2-fixing heterocysts and CO2-fixing, photosynthetic, vegetative cells. These bacteria can be considered

Externí odkaz: https://doaj.org/article/9ecf049d0d8c4885b6b78c17dca11166

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Role for hetC in the Transition to a Nondividing State during Heterocyst Differentiation in Anabaena sp

Autor: X Xu, C P Wolk

Publikováno v: Journal of Bacteriology. 183:393-396

Nitrogen-deprived filaments of wild-type or hetC Anabaena sp. produce respectively, at semiregular intervals, heterocysts and weakly fluorescent cells. Unlike heterocysts, the latter cells can divide and elongate, producing a pattern of spaced series

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3df2edf03592f0e34bde19e0d00e19a1
https://doi.org/10.1128/jb.183.1.393-396.2001

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A transposition-induced mutant of Nostoc ellipsosporum implicates an arginine-biosynthetic gene in the formation of cyanophycin granules and of functional heterocysts and akinetes

Autor: Francisca Fernández-Piñas, C P Wolk, Francisco Leganés

Publikováno v: Scopus-Elsevier

In strain NE1 of Tn5-1058-mutagenized Nostoc ellipsosporum, the transposon was found within a gene whose translation product is similar in amino acid sequence to the arginine-biosynthetic protein N-acetylglutamate semialdehyde dehydrogenase encoded b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::784c1bb1fa227f595068a4b55ef7743d
https://doi.org/10.1099/00221287-144-7-1799

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hetC, a gene coding for a protein similar to bacterial ABC protein exporters, is involved in early regulation of heterocyst differentiation in Anabaena sp. strain PCC 7120

Autor: I Khudyakov, C P Wolk

Publikováno v: Journal of Bacteriology. 179:6971-6978

Transposon-generated mutant C3 of Anabaena sp. strain PCC 7120 is unable to form heterocysts upon deprivation of combined nitrogen but forms a pattern of spaced, weakly fluorescent cells after 2 days of deprivation. Sequence analysis of chromosomal D

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39bd7902bc72867e264708693279bfdf
https://doi.org/10.1128/jb.179.22.6971-6978.1997

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Nitrogen deprivation of Anabaena sp. strain PCC 7120 elicits rapid activation of a gene cluster that is essential for uptake and utilization of nitrate

Autor: Y Cai, C P Wolk

Publikováno v: Journal of Bacteriology. 179:258-266

A transposon bearing luxAB, encoding luciferase, as a reporter of transcription was used to identify genes that are activated rapidly upon deprivation of Anabaena sp. strain PCC 7120 of fixed nitrogen. The three transposon-marked loci that were ident

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9f42513f0febf01e7bfb293a2b2cfbc
https://doi.org/10.1128/jb.179.1.258-266.1997

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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

Autor: I Khudyakov, C P Wolk

Publikováno v: Journal of Bacteriology. 178:3572-3577

The highly pleiotropic, transposon-generated mutant AB22 of Anabaena sp. strain PCC 7120 exhibits slow growth, altered pigmentation, cellular fragility, resistance to phage A-4(L), and the inability to differentiate heterocysts. Reconstruction of the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a13d3b3c539a121c3183232d22bea2c6
https://doi.org/10.1128/jb.178.12.3572-3577.1996

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

Autor: Y Cai, C P Wolk, J Elhai

Publikováno v: Journal of Bacteriology. 176:5059-5067

pEC22 is a small plasmid that encodes the restriction-modification system MR.EcoT22I. Restriction and functional analysis of the plasmid identified the positions of genes encoding that system. The plasmid is able to be conducted by conjugal plasmids,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19476cf3aa25f4047ef1935531539204
https://doi.org/10.1128/jb.176.16.5059-5067.1994

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

Autor: Todd A. Black, C P Wolk

Publikováno v: Journal of Bacteriology. 176:2282-2292

Transposon-generated mutant N10 of Anabaena sp. strain PCC 7120 has a Het- phenotype (A. Ernst, T. Black, Y. Cai, J.-M. Panoff, D. N. Tiwari, and C. P. Wolk, J. Bacteriol. 174:6025-6032, 1992). Reconstruction of the transposon mutation reproduced a H

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cca2b7cd54eb8bb851160956edc74634
https://doi.org/10.1128/jb.176.8.2282-2292.1994

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Amplified expression of a transcriptional pattern formed during development of Anabaena

Autor: Tanya Kuritz, C P Wolk, D Holland, Jeff Elhai

Publikováno v: Molecular Microbiology. 7:441-445

The cyanobacterium Anabaena responds to nitrogen deprivation by producing heterocysts, cells specialized for nitrogen fixation, at well-spaced intervals along its filaments. The gene hepA, required for heterocyst maturation, is expressed in response

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ad4a668c81146bc62510c156170303d
https://doi.org/10.1111/j.1365-2958.1993.tb01135.x

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Identification and initial utilization of a portion of the smaller plasmid ofAnabaena variabilis ATCC 29413 capable of replication inAnabaena sp. strain M-131

Autor: C P Wolk, M A Murry

Publikováno v: Molecular and General Genetics MGG. 227:113-119

Anabaena variabilis ATCC 29413 contains two cryptic plasmids. Clones of the smaller (41 kb) plasmid, designated pRDS1, in cosmid vectors were used to construct a physical map. A clone bank of pRDS1 constructed by ligating fragments from a XhoII diges

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af06741831a1f18eeca3ef2f7f5d2888
https://doi.org/10.1007/bf00260715

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