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Topic: Actinobacteria

Related Topics

Actinomyces

Micromonospora

Actinomycetales

Gram positive

Frankia

Micromonospora heviziensis

Eubacteria

Bacteria

Firmicutes

Thermodesulfobacteria

Fusobacteria

Bacterium

Arthrobacter

Aquificae

Mollicutes

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	Actinobacteria - Wikipedia, the free encyclopedia
		The Actinobacteria or Actinomycetes are a group of Gram-positive bacteria.
		The ability of Actinobacteria to thrive in low nutrient evironments and to consume lignocellulose (a component of decaying plant matter not normally consumed by most soil bacteria) have allowed the Actinobacteria to become the predominant bacteria in karst cave systems, where they survive on a seasonally fluctuating supply of carbon washed in from the surface.
		Actinobacteria are unsurpassed in their ability to produce many compounds that have pharmaceutically useful properties.
	en.wikipedia.org /wiki/Actinobacteria (330 words)

	[No title] (Site not responding. Last check: 2007-11-07)
		Actinobacteria and the Beta and Gammaproteobacteria constituted the majority of diversity seen at the population level, while Alphaproteobacteria and Bacteroides were just as diverse at the genus level.
		Actinobacteria populations were the most stable over time as 3 populations were seen on more than 90% of the sampling dates.
		These data suggest that Actinobacteria populations are temporally stable, while Proteobacteria and Bacteroides play a major role in the within- and between-year shifts in composition and diversity seen at all phylogenetic levels in a humic lake.
	www.bact.wisc.edu /biotech/STUDENT/RyanNewton/Newton2004Abstract.doc (305 words)

	Learn more about Actinobacteria in the online encyclopedia. (Site not responding. Last check: 2007-11-07)
		The Actinobacteria are a group of Gram-positive bacteria.
		Most are found in the soil, and they include some of the most common soil life, playing important roles in decomposition and humus formation.
		The Actinobacteria correspond to the high G+C group of Gram-positive bacteria, forms whose DNA contains unusually large amounts of the bases guanine and cytosine.
	www.onlineencyclopedia.org /a/ac/actinobacteria.html (176 words)

	GRDC - Crop Doctor - Bacteria moves forward (West, 5 May 2004)
		'Actinobacteria', as they are called, were isolated from healthy crops by a research team incorporating CSIRO and Flinders University (SA) experts to monitor their effect on plant growth when applied at sowing.
		More than 30 per cent of the actinobacteria strains were active against important root diseases, with the most effective reducing Take-all symptom levels by 60 per cent and Pythium symptoms by more than 80 per cent.
		During field trials, wheat seeds planted in take-all infected soil, but coated with specific actinobacteria, went on to produce similar yields to those treated with 'Jockey', the best known chemical control for the disease.
	www.grdc.com.au /growers/cd/west/western_region04015.htm (326 words)

	Abundances, Identity, and Growth State of Actinobacteria in Mountain Lakes of Different UV Transparency -- Warnecke et ...
		not all sequences of the acI lineage of Actinobacteria (13).
		Relationships between the fraction of Actinobacteria from the acI lineage (as determined by probe AcI-852) and the modeled diffuse UV-B attenuation coefficient at 320 nm (A) or the UV absorption at 320 nm normalized to the respective concentrations of DOC (B).
		An improved protocol for the quantification of freshwater actinobacteria by fluorescence in situ hybridization.
	aem.asm.org /cgi/content/full/71/9/5551 (4958 words)

	Astrobiology & the Origins of Life - Conference Participants (Site not responding. Last check: 2007-11-07)
		WhatÂ’s more, the origin of Actinobacteria and the interrelationships among different families and orders within this phylum remains to be determined with certainty.
		This work proposed for the first time 3 conserved indels in 3 different proteins that are distinctive characteristics of the Actinobacteria phylum and 1 conserved insert that is specific for CMN subgroup.
		The group-specific indels may be introduced in a common ancestor of Actinobacteria and passed on to all descendents.
	www.physics.mcmaster.ca /cgi-bin/origins/showabs.pl?abs=BGao (219 words)

	Conserved indels in protein sequences that are characteristic of the phylum Actinobacteria -- Gao and Gupta 55 (6): ...
		Conserved indels in protein sequences that are characteristic of the phylum Actinobacteria -- Gao and Gupta 55 (6): 2401 -- International Journal of Systematic and Evolutionary Microbiology
		Conserved indels in protein sequences that are characteristic of the phylum Actinobacteria
		that are distinctive characteristics of the Actinobacteria and
	ijs.sgmjournals.org /cgi/content/abstract/55/6/2401 (372 words)

	Research - Biology and Psychology - University of Newcastle (Site not responding. Last check: 2007-11-07)
		An Actinobacteria Amplification Resource (http://microbe2.nci.ac.uk/MMB/AAR.htm) was generated to provide a visual guide to aid the amplification of actinobacterial 16S rDNA.
		Application of the primers to DNA extracted from marine and terrestrial samples revealed the presence of actinobacteria that have not been described previously.
		The results of this study reinforce the proposition that current culture-based techniques drastically underestimate the diversity of Actinobacteria in the environment and highlight the need to evaluate taxon-specific primers regularly in line with improvements in databases holding 16S rDNA sequences.
	www.ncl.ac.uk /biol/research/publication/36517 (248 words)

	Prof. Michael Goodfellow - Biology and Psychology - University of Newcastle (Site not responding. Last check: 2007-11-07)
		The MRC has and remains focussed on the development and application of state-of-the-art procedures designed to advance the systematics, ecology and commercialisation of actinobacteria.
		Together with colleagues, I’m currently using actinobacteria as a platform on which to address Research Council priority areas in predictive and integrative biology, notably by making the transition to the post-genomic agenda.
		Focus on the isolation of rare marine actinobacteria (rare sensu small local populations, small geographical range and narrow habitat specificity).
	www.ncl.ac.uk /biol/staff/profile/m.goodfellow (875 words)

	Birth, sex and death of genes in the Actinobacteria: A study of how gene duplication, gene loss and horizontal gene ... (Site not responding. Last check: 2007-11-07)
		Birth, sex and death of genes in the Actinobacteria: A study of how gene duplication, gene loss and horizontal gene transfer have shaped the evolution of these organisms.
		This research focuses on the phylum Actinobacteria, of which Mycobacterium tuberculosis (the causative agent of tuberculosis, one of the three biggest infectious agents in the world today) is a member.
		By analyzing a sample of the completed genomes of the Actinobacteria it may be possible to determine the extent to which gene duplication and loss and HGT have affected these closely related bacteria and it may give some insights into the reasons why the Actinobacteria are such a diverse phylum.
	www.iscb.org /ismb2004/posters/Rhoda.J.KinsellaATmay.ie_397.html (438 words)

	Actinobacteria: Facts and details from Encyclopedia Topic (Site not responding. Last check: 2007-11-07)
		The Actinobacteria are a group of Gram-positive Gram-positive quick summary:
		Gram-positive bacteria are those that are stained dark blue or violet by gram staining, in contrast to gram-negative bacteria, which are not affected by the...
		The Actinobacteria correspond to the high G+C group of Gram-positive bacteria, EHandler: no quick summary.
	www.absoluteastronomy.com /encyclopedia/a/ac/actinobacteria.htm (606 words)

	A survey of nucleotide cyclases in Actinobacteria: unique domain organization and expansion of the class III cyclase ... (Site not responding. Last check: 2007-11-07)
		A survey of nucleotide cyclases in Actinobacteria: unique domain organization and expansion of the class III cyclase family in Mycobacterium tuberculosis
		We have analysed the actinobacterial genome sequences found in current databases for the presence of different classes of nucleotide cyclases, and find that only class III cyclases are present in these organisms.
		A clustering of the cyclase domains in Actinobacteria reveals the presence of typical eukaryote-like, fungi-like and other bacteria-like class III cyclase sequences within this phylum, suggesting that these proteins may have significant roles to play in this important group of organisms.
	eprints.iisc.ernet.in /archive/00000391 (378 words)

	Identification of a topoisomerase IV in actinobacteria: purification and characterization of ParYR and GyrBR from the ...
		Identification of a topoisomerase IV in actinobacteria: purification and characterization of ParYR and GyrBR from the coumermycin A1 producer Streptomyces rishiriensis DSM 40489 -- Schmutz et al.
		Identification of a topoisomerase IV in actinobacteria: purification and characterization of ParY
		of actinobacteria: the genome sequences of coryneform bacteria
	mic.sgmjournals.org /cgi/content/full/150/3/641 (2799 words)

	GRDC - Ground Cover Issue 52 - Natural seed coating wins Eureka Prize
		Professor Chris Franco, who leads the research group from Flinders University in Adelaide and CSIRO Plant Industry in Perth that developed the microbial system, has received the $10,000 GRDC-sponsored Eureka Prize for "Research to Improve the Environmental Sustainability of Graingrowing".
		The coating is formed from spores of naturally occurring microbes called filamentous actinobacteria, which produce compounds that discourage fungal growth while at the same time encouraging plant growth.
		Professor Franco says his team knew that actinobacteria could produce a range of chemical structures, including antibiotics.
	www.grdc.com.au /growers/gc/gc52/eureka.htm (292 words)

	2004 Winner: GRDC Eureka Prize for Research to Improve the Environmental Sustainability of Graingrowing (Site not responding. Last check: 2007-11-07)
		The coating is formed from the spores of a group of naturally occurring microbes.
		Known as filamentous actinobacteria, these microbes produce a range of compounds which discourage fungal growth and encourage plant growth.
		Like many micro-organisms, the Actinobacteria form hardy spores as protection against unfavourable environmental conditions, particularly during dispersal.
	www.amonline.net.au /eureka/sustainability_graingrowing (540 words)

	Actinobacteria Stackebrandt et al
		Actinobacteria, actinomycete group of bacteria of diverse morphological properties.
		According to Rules 15, 22 and 27(3), the class Actinobacteria is illegitimate because it was proposed without the designation of a nomenclatural type.
		EUZÉBY (J.P.) and TINDALL (B.J.): Nomenclatural type of orders: corrections necessary according to Rules 15 and 21a of the Bacteriological Code (1990 Revision) and designation of appropriate nomenclatural types of classes and subclasses.
	www.bacterio.cict.fr /a/actinobacteria.html (176 words)

	Where Does Mycobacterium Tuberculosis Stand in Bacterial Taxonomy? (Site not responding. Last check: 2007-11-07)
		The availability of the Mycobacterium tuberculosis genome sequence offers an unprecedented opportunity for advancing our knowledge about this microorganism at the molecular level that can then be translated into new and more effective strategies for disease prevention, diagnosis, and treatment.
		Here, Actinobacteria correspond to the high G + C group, the Bacillus/Clostridium group to the low G + C group, and Firmicutes to Gram-positive bacteria in the original reference of the phylogenetic tree constructed based on 16S ribosomal RNA.
		In the latest bacterial taxonomy tree, the class Actinobacteria is elevated to the rank of phylum.
	www.patcar.org /Spotlight/TB-spotlight.html (435 words)

	Conexibacter woesei gen. nov., sp. nov., a novel representative of a deep evolutionary line of descent within the class ...
		Felske, A., Rheims, H., Wolterink, A., Stackebrandt, E. and Akkermans, A. Ribosome analysis reveals prominent activity of an uncultured member of the class Actinobacteria in grassland soils.
		Furlong, M. A., Singleton, D. R., Coleman, D. and Whitman, W. Molecular and culture-based analyses of prokaryotic communities from an agricultural soil and the burrows and casts of the earthworm Lumbricus rubellus.
		Rheims, H. and Stackebrandt, E. Application of nested polymerase chain reaction for the detection of as yet uncultured organisms of the class Actinobacteria in environmental samples.
	ijs.sgmjournals.org /cgi/content/full/53/2/569 (3440 words)

	[No title]
		A 58 Fusarium Phylum Deuteromycota (fungi imperfecti) A 59 Aspergillus Phylum Deuteromycota (fungi imperfecti) A 60 Aspergillus Phylum Deuteromycota (fungi imperfecti) A,B 61 Saccharomyces Hemiascomycetae (yeasts) A 62 Aspergillus Phylum Deuteromycota (fungi imperfecti) A 63 (white rot fungus) Phylum ?
		A 105 Actinobacteria A,B,C,D,E 106 Aeroendospora A 107 Actinobacteria A,B,C,D,E,F,G,H 108 Pseudomonads A 109 Aeroendospora A 110 Cyanobacteria A 111 Pseudomonads A 112 ?
		A 128 Mycobacterium Actinobacteria A 129 Streptomyces Actinobacteria A 130 Mycobacterium Actinobacteria A 131 Streptomyces Actinobacteria A 132 Mycobacterium Actinobacteria A
	www.icgeb.org /~p450srv/classdistrib.html (125 words)

	[No title]
		Bacteria; Actinobacteria; Actinobacteridae; Actinomycetales; Frankineae; Frankiaceae; Frankia Frankia sp.
		Bacteria; Actinobacteria; Actinobacteridae; Actinomycetales; Micrococcineae; Microbacteriaceae; Leifsonia Leifsonia xyli subsp.
		Bacteria; Actinobacteria; Actinobacteridae; Actinomycetales; Micrococcineae; Micrococcaceae; Arthrobacter Arthrobacter sp.
	psyche.uthct.edu /dbs/tmRDB/protein/smpb/alignment/fasta/smpb_ali.fasta (2508 words)

	Fatty acid biosynthesis in Mycobacterium tuberculosis: Lateral gene transfer, adaptive evolution, and gene duplication ...
		The fourth clade of actinobacteria have a sister
		actinobacteria containing a gene duplication of the mycobacteria
		and the actinobacteria, despite the presence of sequences from
	www.pnas.org /cgi/content/full/100/18/10320 (4096 words)

	frankia (Site not responding. Last check: 2007-11-07)
		Frankia is a nitrogen-fixing bacterium that lives in the soil and has a symbiotic relationship with many plants.
		Genoscope, the CNRS, and University of Lyon began in October of 2003 on a Frankia squencing project.
		They are sequencing the Frankia alni ACN14a genome and compare it to other Actinobacteria.
	biology.kenyon.edu /Microbial_Biorealm/bacteria/gram-positive/frankia/Frankia.htm (608 words)

	Tropheryma whipplei Twist: A Human Pathogenic Actinobacteria With a Reduced Genome -- Raoult et al. 13 (8): 1800 -- ...
		Articles by Raoult, D. Articles by Claverie, J.-M. Tropheryma whipplei Twist: A Human Pathogenic Actinobacteria With a Reduced Genome
		offers the prime example of genome reduction among Actinobacteria.
		might thus be a process generally used by Actinobacteria to
	www.genome.org /cgi/content/full/13/8/1800 (4630 words)

	Ecotypes of Planktonic Actinobacteria with Identical 16S rRNA Genes Adapted to Thermal Niches in Temperate, ...
		Ecotypes of Planktonic Actinobacteria with Identical 16S rRNA Genes Adapted to Thermal Niches in Temperate, Subtropical, and Tropical Freshwater Habitats -- Hahn and Pöckl 71 (2): 766 -- Applied and Environmental Microbiology
		Ecotypes of Planktonic Actinobacteria with Identical 16S rRNA Genes Adapted to Thermal Niches in Temperate, Subtropical, and Tropical Freshwater Habitats
		the Luna2 cluster (Actinobacteria) were isolated from six freshwater
	aem.asm.org /cgi/content/abstract/71/2/766 (391 words)

	Distribution of beta -Lactamases in Actinomycetes -- Ogawara et al. 43 (12): 3014 -- Antimicrobial Agents and ...
		Generally, as actinobacteria other than Streptomyces grow very slowly, the
		This may be related to the fact that
		-lactam antibiotics are hardly detected in actinobacteria other
	aac.asm.org /cgi/content/full/43/12/3014 (817 words)

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