Abstract：
:Video-enhanced light microscopy of the apical and subapical regions of growing hyphae of several fungal species revealed the existence of momentary synchronized motions of subcellular organelles. First discovered in a temperature-sensitive morphological mutant (ramosa-1) of Aspergillus niger, these seemingly spontaneous cytoplasmic contractions were also detected in wild-type hyphae of A. niger, Neurospora crassa, and Trichoderma atroviride. Cytoplasmic contractions in all fungi lasted about 1 s. Although the cytoplasm recovered its motility and appearance, the contraction usually led to drastic changes in Spitzenkörper (apical body) behavior and hyphal morphology, often both. Within 10 s after the contraction, the Spitzenkörper commonly became dislodged from its polar position; sometimes it disassembled into phase-dark and phase-light components; more commonly, it disappeared completely. Whether partial or complete, the dislocation of the Spitzenkörper was always accompanied by a sharp reduction or cessation of growth, and was usually followed by marked morphological changes that included bulbous hyphal tips, bulges in the hyphal profile, and formation of subapical and apical branches. The cytoplasmic contractions are vivid evidence that the most conspicuous cell organelles (membrane-bound) in living hyphae are interconnected via a contractile cytoskeletal network.
journal_name
Arch Microbioljournal_title
Archives of microbiologyauthors
Reynaga-Peña CG,Bartnicki-García Sdoi
10.1007/s00203-005-0771-zkeywords:
subject
Has Abstractpub_date
2005-05-01 00:00:00pages
292-300issue
4eissn
0302-8933issn
1432-072Xjournal_volume
183pub_type
杂志文章abstract：:A new psychrophilic, anaerobic, acetogenic bacterium from the tundra wetland soil of Polar Ural is described. The organism fermented H2/CO2, formate, methanol, and several sugars to acetate as the sole end-product. The temperature range for growth was 1-30 degrees C with an optimum at 20 degrees C. The bacterium showe...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s002030000229
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abstract：:A gram-negative bacterium was isolated from activated sewage sludge with thiophene-2-carboxylate as the sole source of carbon and with nitrate as an electron acceptor. The isolate, strain NKK, was a motile, oxidase- and catalase-positive, rod-like bacterium with a G+C content of 61.7 mol%. Besides nitrate, oxygen coul...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s002030050575
更新日期：1998-04-01 00:00:00
abstract：:Triacylglycerol granules synthesized and accumulated by Rhodococcus opacus and Rhodococcus ruber were isolated by glycerol density gradient centrifugation. Whereas only one type of granule could be isolated from R. opacus, two types of granules with different specific densities were isolated from R. ruber. Both types ...
journal_title：Archives of microbiology
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doi：10.1007/s00203-001-0355-5
更新日期：2001-12-01 00:00:00
abstract：:Mesorhizobium tianshanense is a nitrogen-fixing bacterium that can establish symbiotic associations with Glycyrrhiza uralensis in the form of root nodules. Nodule formation in rhizobia often requires various secreted carbohydrates. To investigate exopolysaccharide (EPS) production and function in M. tianshanense, we p...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-007-0345-3
更新日期：2008-05-01 00:00:00
abstract：:A triazine dye, Cibacron blue 3G-A (CB), is an inhibitor of cell separation of staphylococcal spp. therefore, we examined the effect of CB on growth of gram-positive bacteria other than Staphylococcus. CB added to the medium of growing cultures of strains of genus Micrococcus, Streptococcus, Lactobacillus and Bacillus...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00248617
更新日期：1991-01-01 00:00:00
abstract：:In studies on the membranlytic action of various saponins on mycelium of Botrytis cinerea and Rhizoctonia solani digitonin, alpha-hederin and tomatin caused considerable leakage of free amino acids, while aescin and theasaponin were less effective. Cyclamin significantly damaged cell membranes of R. solani, but did no...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00447315
更新日期：1975-06-22 00:00:00
abstract：:DNA sequence analysis of the structural urease genes from Staphylococcus xylosus revealed that three enzyme subunits are encoded in the order of 11,000, 15,400 and 61,000 (mol. mass), which correspond to the single polypeptide chain of jack bean urease (90,800). Comparing the deduced amino acid sequence of S. xylosus ...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00288947
更新日期：1994-01-01 00:00:00
abstract：:In addition to rhizobia, other non-symbiotic endophytic bacteria also have been simultaneously isolated from the same root nodules. The existence of non-symbiotic endophytic bacteria in leguminous root nodules is a universal phenomenon. The vast majority of studies have detected endophytic bacteria in other plant tiss...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-019-01752-7
更新日期：2020-03-01 00:00:00
abstract：:Short-chain aliphatic epoxides and ketones are two classes of toxic organic compounds formed biogenically and anthropogenically. In spite of their toxicity, these compounds are utilized as primary carbon and energy sources or are generated as intermediate metabolites in the metabolism of other compounds (e.g., alkenes...
journal_title：Archives of microbiology
pub_type： 杂志文章,评审
doi：10.1007/s002030050558
更新日期：1998-03-01 00:00:00
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journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00425219
更新日期：1983-12-01 00:00:00
abstract：:Microbial flavohaemoglobins are proteins with homology to haemoglobins from higher organisms, but clearly linked to nitric oxide (NO) metabolism by bacteria and yeast. hmp mutant strains of several bacteria are hypersensitive to NO and related compounds and hmp genes are up-regulated by the presence of NO. The regulat...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-006-0175-8
更新日期：2007-01-01 00:00:00
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journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF02529975
更新日期：1995-09-01 00:00:00
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journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00409878
更新日期：1986-05-01 00:00:00
abstract：:The starvation survivability of seven Thermococcus strains isolated from four Japanese oil reservoirs was compared with that of Thermococcus strains from marine hydrothermal fields. 16S rDNA analyses showed the isolates to be closely related to Thermococcus litoralis. Growth of the isolates was dependent on amino acid...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s002030100318
更新日期：2001-10-01 00:00:00
abstract：:The propensity of bacterium to sporulate or retain the vegetative form depends on the amount of phosphorylated Spo0A (Spo0A(-P)), regulated by Spo0E multigene family of phosphatases (Spo0E, YisI and YnzD). Phylogenetic analysis revealed that Spo0E multigene family of phosphatases (SMFP) descends in two distinct clades...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-008-0446-7
更新日期：2009-03-01 00:00:00
abstract：:The ability of Methylosinus trichosporium OB3b, expressing soluble methane monooxygenase, to oxidize a range of ortho-substituted biphenyls was examined to better understand how substituents affect both the rate and products of oxidation in comparison to biphenyl. Inhibition of oxidation was observed over the tested s...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s002030000170
更新日期：2000-07-01 00:00:00
abstract：:A complex polydispersity became apparent when the poly(glycerophosphate) lipoteichoic acid of Enterococcus faecalis was chromatographed on DEAE-Sephadex. The chain length varied between 13 and 33 glycerophosphate residues per lipid anchor. In parallel, the extent of chain glycosylation increased from 0.2 to 0.4 digluc...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00249103
更新日期：1992-01-01 00:00:00
abstract：:To identify virulence-associated genes of a fish pathogen Yersinia ruckeri, we screened a total of 1056 mini-Tn5-Km2 signature-tagged mutants in rainbow trout by immersion challenge. Of 1056, 25 mutants were found survival-defective as they could not be re-isolated from fish kidney 7 days after infection. Mutated gene...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-010-0582-8
更新日期：2010-07-01 00:00:00
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journal_title：Archives of microbiology
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doi：10.1007/s00203-018-1580-5
更新日期：2019-01-01 00:00:00
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journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-007-0292-z
更新日期：2008-01-01 00:00:00
abstract：:Two genes, aphE and orf, coding for putative Mr 29,000 and Mr 31,000, proteins respectively, were identified in the nucleotide sequence of a 2.8 kbp DNA segment cloned from Streptomyces griseus N2-3-11. The aphE gene expressed streptomycin (SM) resistance and a SM phosphorylating enzyme in S. lividans strains. The two...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00425160
更新日期：1988-01-01 00:00:00
abstract：:Milk containing antibiotics is used as cost-effective feed for calves, which may lead to antibiotic residues-associated food safety problems. This study aims to investigate the influence of antibiotics on rumen microbes. Through metagenomic sequencing, the rumen microbial communities of calves fed with pasteurized mil...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-016-1311-8
更新日期：2017-04-01 00:00:00
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journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00421887
更新日期：1980-05-01 00:00:00
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journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00447318
更新日期：1975-06-22 00:00:00
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journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/s00203-006-0088-6
更新日期：2006-04-01 00:00:00
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journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00429631
更新日期：1977-07-26 00:00:00
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journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00436357
更新日期：1975-05-05 00:00:00
abstract：:N-Formylmaleamic acid, a probable intermediate in the bacterial metabolism of nicotinic acid, has been synthesized by photoisomerization of its trans isomer, N-formylfumaramic acid. The compound previously reported to be N-formylmaleamic acid has been shown to be N-formylfumaramic acid. ...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00416972
更新日期：1976-10-11 00:00:00
abstract：:Autotrophic cultures of the facultative chemolithotroph Alcaligenes eutrophus have been found to excrete glycollate. This excretion was greatly stimulated by the incorporation of up to 20% (v/v) oxygen in the hydrogen used for gassing. The stimulatory effect of oxygen was prevented by the addition of 10% (v/v) CO2 to ...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00690224
更新日期：1976-11-02 00:00:00
abstract：:The synthesis of beta-glucanase either by cells or by protoplasts of the yeast Pichia polymorpha has been found to occur in the presence of 2-deoxy-D-glucose in the growth medium. On the other hand, the synthesis of typical extracellular proteins such as invertase and acid phosphatase is strongly affected by the prese...
journal_title：Archives of microbiology
pub_type： 杂志文章
doi：10.1007/BF00447154
更新日期：1975-11-07 00:00:00
