Relevant bibliographies by topics / Sporulation conditions

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Academic literature on the topic 'Sporulation conditions'

Author: Grafiati
Published: 22 June 2024
Last updated: 31 July 2025

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Journal articles on the topic "Sporulation conditions"

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Ferreira, Julio C., Anita D. Panek, and Pedro S. de Araujo. "Inactivation of maltose permease and maltase in sporulatingSaccharomyces cerevisiae." Canadian Journal of Microbiology 46, no. 4 (2000): 383–86. http://dx.doi.org/10.1139/w99-136.

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Maltose transport and maltase activities were inactivated during sporulation of a MAL constitutive yeast strain harboring different MAL loci. Both activities were reduced to almost zero after 5 h of incubation in sporulation medium. The inactivation of maltase and maltose permease seems to be related to optimal sporulation conditions such as a suitable supply of oxygen and cell concentration in the sporulating cultures, and occurs in the fully derepressed conditions of incubation in the sporulation acetate medium. The inactivation of maltase and maltose permease under sporulation conditions in
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Ozsarac, N., M. J. Straffon, H. E. Dalton, and I. W. Dawes. "Regulation of gene expression during meiosis in Saccharomyces cerevisiae: SPR3 is controlled by both ABFI and a new sporulation control element." Molecular and Cellular Biology 17, no. 3 (1997): 1152–59. http://dx.doi.org/10.1128/mcb.17.3.1152.

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The SPR3 gene encodes a sporulation-specific homolog of the yeast Cdc3/10/11/12 family of bud neck filament proteins. It is expressed specifically during meiosis and sporulation in Saccharomyces cerevisiae. Analysis of the sporulation-specific regulation of SPR3 has shown that it is strongly activated under sporulating conditions but shows low levels of expression under nonsporulating conditions. A palindromic sequence located near the TATA box is essential to the developmental regulation of this gene and is the only element directly activating SPR3 at the right time during sporulation. Within
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Eswaramoorthy, Prahathees, Jeffrey Dinh, Daniel Duan, Oleg A. Igoshin, and Masaya Fujita. "Single-cell measurement of the levels and distributions of the phosphorelay components in a population of sporulating Bacillus subtilis cells." Microbiology 156, no. 8 (2010): 2294–304. http://dx.doi.org/10.1099/mic.0.038497-0.

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Upon nutrient starvation, the Gram-positive bacterium Bacillus subtilis switches from growth to sporulation by activating a multicomponent phosphorelay consisting of a major sensor histidine kinase (KinA), two phosphotransferases (Spo0F and Spo0B) and a response regulator (Spo0A). Although the primary sporulation signal(s) produced under starvation conditions is not known, it is believed that the reception of a signal(s) on the sensor kinase results in the activation of autophosphorylation of the enzyme. The phosphorylated kinase transfers the phosphate group to Spo0A via the phosphorelay and
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Eswaramoorthy, Prahathees, Daniel Duan, Jeffrey Dinh, Ashlee Dravis, Seram Nganbiton Devi, and Masaya Fujita. "The Threshold Level of the Sensor Histidine Kinase KinA Governs Entry into Sporulation in Bacillus subtilis." Journal of Bacteriology 192, no. 15 (2010): 3870–82. http://dx.doi.org/10.1128/jb.00466-10.

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ABSTRACT Sporulation in Bacillus subtilis is controlled by a complex gene regulatory circuit that is activated upon nutrient deprivation. The initial process is directed by the phosphorelay, involving the major sporulation histidine kinase (KinA) and two additional phosphotransferases (Spo0F and Spo0B), that activates the master transcription factor Spo0A. Little is known about the initial event and mechanisms that trigger sporulation. Using a strain in which the synthesis of KinA is under the control of an IPTG (isopropyl-β-d-thiogalactopyranoside)-inducible promoter, here we demonstrate that
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Caffi, Tito, Giovanna Gilardi, Matteo Monchiero, and Vittorio Rossi. "Production and Release of Asexual Sporangia in Plasmopara viticola." Phytopathology® 103, no. 1 (2013): 64–73. http://dx.doi.org/10.1094/phyto-04-12-0082-r.

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To study the influence of environmental conditions on sporulation of Plasmopara viticola lesions under vineyard's conditions, unsprayed vines were inspected every second or third day and the numbers of sporulating and nonsporulating lesions were counted in two North Italy vineyards in 2008 to 2010. Infected leaves were removed so that only fresh lesions were assessed at each field assessment. Sporulation was studied at two scales, across field assessments and across the seasonal population of lesions. Frequencies of sporulating lesions were positively correlated with the numbers of moist hours
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Olempska-Beer, Z., and E. Freese. "Initiation of meiosis and sporulation in Saccharomyces cerevisiae does not require a decrease in cyclic AMP." Molecular and Cellular Biology 7, no. 6 (1987): 2141–47. http://dx.doi.org/10.1128/mcb.7.6.2141-2147.1987.

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Meiosis and sporulation of Saccharomyces cerevisiae are initiated in a guanine auxotroph by guanine deprivation (E. Bautz Freese, Z. Olempska-Beer, A. Hartig, and E. Freese, Dev. Biol. 102:438-451, 1984). We used this condition to examine a hypothesis (K. Matsumoto, I. Uno, and T. Ishikawa, Cell 32:417-423, 1983) that initiation of meiosis requires a low level of cAMP. We found that, after guanine deprivation, the intracellular concentration of cAMP transiently decreased not more than 20% and not at all if the cAMP phosphodiesterase inhibitor 3-isobutyl-1-methylxanthine (IBMX) was added to the
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Olempska-Beer, Z., and E. Freese. "Initiation of meiosis and sporulation in Saccharomyces cerevisiae does not require a decrease in cyclic AMP." Molecular and Cellular Biology 7, no. 6 (1987): 2141–47. http://dx.doi.org/10.1128/mcb.7.6.2141.

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Meiosis and sporulation of Saccharomyces cerevisiae are initiated in a guanine auxotroph by guanine deprivation (E. Bautz Freese, Z. Olempska-Beer, A. Hartig, and E. Freese, Dev. Biol. 102:438-451, 1984). We used this condition to examine a hypothesis (K. Matsumoto, I. Uno, and T. Ishikawa, Cell 32:417-423, 1983) that initiation of meiosis requires a low level of cAMP. We found that, after guanine deprivation, the intracellular concentration of cAMP transiently decreased not more than 20% and not at all if the cAMP phosphodiesterase inhibitor 3-isobutyl-1-methylxanthine (IBMX) was added to the
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Poletto, Tales, Marlove F. B. Muniz, Vinícius S. Fantinel, et al. "Culture Medium, Light Regime and Temperature Affect the Development of Sirosporium diffusum." Journal of Agricultural Science 10, no. 6 (2018): 310. http://dx.doi.org/10.5539/jas.v10n6p310.

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Sirosporium diffusum is the causal agent of the brown leaf spot disease on pecan trees that seriously damages the foliage of adult plants and seedlings. This fungal species is difficult to grow satisfactorily in a culture medium. Therefore, the aim of this study was to evaluate the effects of different physical conditions on the development of S. diffusum. In the first assay, eight culture media and five light regimes were combined, while in the second, the three treatments that promoted highest sporulation were combined with three temperatures. The trials were conducted in a two-factorial arr
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FAILLE, CHRISTINE, JEANNE MARIE MEMBRE, MARTINE KUBACZKA, and FRANÇOISE GAVINI. "Altered Ability of Bacillus cereus Spores To Grow under Unfavorable Conditions (Presence of Nisin, Low Temperature, Acidic pH, Presence of NaCl) following Heat Treatment during Sporulation." Journal of Food Protection 65, no. 12 (2002): 1930–36. http://dx.doi.org/10.4315/0362-028x-65.12.1930.

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The effect of thermal treatment on the heat resistance of Bacillus cereus spores and their ability to germinate and grow under more or less adverse conditions during sporulation was investigated. Spores produced by sporulating cells subjected to a mild heat treatment (at a temperature 15°C higher than the growth temperature) were more resistant to heat than were spores produced by untreated cells. Spore germination and growth (the lag time, the maximal growth rate, and the occurrence of a decrease in population) may be greatly affected by adverse environmental conditions brought about by the a
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Kaback, D. B., and L. R. Feldberg. "Saccharomyces cerevisiae exhibits a sporulation-specific temporal pattern of transcript accumulation." Molecular and Cellular Biology 5, no. 4 (1985): 751–61. http://dx.doi.org/10.1128/mcb.5.4.751-761.1985.

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Cultures of the yeast Saccharomyces cerevisiae that are heterozygous for the mating type (MATa/MAT alpha) undergo synchronous meiosis and spore formation when starved for nitrogen and supplied with a nonfermentable carbon source such as acetate. Haploid and homozygous MAT alpha/MAT alpha and MATa/MATa diploid cells incubated under the same conditions fail to undergo meiosis and are asporogenous. It has not yet been firmly established that gene expression during sporulation is controlled at the level of transcript accumulation. To examine this question, we used cloned genes that encode a variet
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Dissertations / Theses on the topic "Sporulation conditions"

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Payot-Lacroix, Sophie. "Etude des conditions physiologiques influençant] la croissance, le catabolisme du cellobiose et la sporulation de Clostridium Cellulolytycum ATCC 35319." Nancy 1, 1999. http://docnum.univ-lorraine.fr/public/SCD_T_1999_0266_PAYOT.pdf.

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Des cultures en chémostat de Clostridium cellulolyticum ont été mises en oeuvre en présence de cellobiose comme source principale de carbone. Sur milieu complexe, le profil de fermentation, orienté majoritairement vers la production d'acétate, conduit à un défaut de régénération du NADH. Il en résulte une accumulation de ce coenzyme réduit qui pourrait limiter la croissance bactérienne en inhibant l'activité glycéraldéhyde-3-P-déshydrogénase. Sur milieu synthétique, la mise en place de régulations particulières (induction de la production de lactate notamment) permet de diminuer le rapport NAD
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Payot-Lacroix, Sophie Petitdemange Henri. "Etude des conditions physiologiques influançant [i.e. influençant] la croissance, le catabolisme du cellubiose et la sporulation de Clostridium Cellulolyticum ATCC 35319." [S.l.] : [s.n.], 1999. http://www.scd.uhp-nancy.fr/docnum/SCD_T_1999_0266_PAYOT.pdf.

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Hamiot, Audrey. "Crust des spores de Bacillus subtilis : voies de biosynthèse et influence des conditions de sporulation sur sa structure et les propriétés de surface des spores." Electronic Thesis or Diss., Université de Lille (2022-....), 2023. http://www.theses.fr/2023ULILR033.

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Les bactéries du groupe Bacillus subtilis sont des bactéries sporulantes responsables de contamination récurrentes au sein des industries agro-alimentaires. La capacité des spores de B. subtilis à résister à des conditions environnementales extrêmes et à adhérer aux surfaces explique la persistance de ces bactéries au sein des chaines de transformation. Chez B. subtilis, la couche la plus externe des spores est le crust. Le crust est composé de protéines et de glycanes et il confère aux spores leur propriétés de surface et d'adhésion. Dans cette thèse, nous nous sommes intéressés aux gènes imp
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Larroche, Christian. "Analyse du développement d'un champignon filamenteux par l'élaboration des bilans matières et ATP interprétés par une approche stoechiométrique : Application à la croissance et à la sporulation d'un champignon filamenteux dans des conditions de culture en milieu solide." Clermont-Ferrand 2, 1990. http://www.theses.fr/1990CLF2E431.

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La croissance et la sporulation de penicillium roquefortii cultive dans des conditions de fermentation en milieu solide sont etudiees a travers l'etablissement des bilans matiere, thermique et bioenergetique. Deux techniques de mise en uvre sont envisagees; la premiere repose sur l'utilisation d'un substrat amylace particulaire constitue de grains de sarrasin, la seconde consiste en l'emploi d'un support mineral poreux compose de particules de pouzzolane, impregnees et continuellement alimentees en milieu nutritif liquide concentre. Les conditions de mise en uvre d'une culture sur substrat nat
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Books on the topic "Sporulation conditions"

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Smith, Robert M. Other bacterial diseasesErysipeloid. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780198570028.003.0025.

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Erysipeloid is an acute bacterial infection usually causing acute localised cellulitis as a secondary infection of traumatised skin. It is caused by Erysipelothrix rhusiopathiae (insidiosa), a non-sporulating Gram-positive rod-shaped bacterium, ubiquitous in the environment. It is the cause of swine erysipelas and also a pathogen or commensal in a variety of wild and domestic birds, animal and marine species. Human infection primarily associated with occupational exposure to infected or contaminated animals or handling animal products and therefore is commoner in farmers, butchers and abattoir
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Book chapters on the topic "Sporulation conditions"

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Elrod, Susan L., Sabrina M. Chen, Katja Schwartz, and Elizabeth O. Shuster. "Optimizing Sporulation Conditions for Different Saccharomyces cerevisiae Strain Backgrounds." In Methods in Molecular Biology. Humana Press, 2009. http://dx.doi.org/10.1007/978-1-59745-527-5_2.

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Guochang, Sun, and Sun Shuyuan. "Conditions for Sporulation and Preservation of Conidia of Rice Blast Fungus Pyricularia Grisea." In Major Fungal Diseases of Rice. Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-017-2157-8_8.

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Stevens, T. H. "Saccharomyces cerevisiae Eug1." In Guidebook to Molecular Chaperones and Protein-Folding Catalysts. Oxford University PressOxford, 1997. http://dx.doi.org/10.1093/oso/9780198599494.003.00130.

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Abstract EUG1 (ER protein unnecessary for growth under standard laboratory conditions) was named for its observed mutant phenotype (Tachibana, Stevens, 1992). Overproduction or deletion of the EUG1 gene appears to have no effect on cell viability or function. Yeast cells deleted for EUG1 grow with wild-type rates on rich or minimal media at temperatures from 18 to 40°C, can grow anaerobically. Sporulation is not affected in homozygous eug1& cells, nor is the transport of vacuolar, secreted proteins through the secretory pathway.
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Ekena, K., M. LaMantia,, and T. Steven. "EUG1." In Secretory Pathway. Oxford University PressOxford, 1994. http://dx.doi.org/10.1093/oso/9780198599425.003.0029.

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Abstract EUG1 (I;R protein necessary for growth under standard laboratory conditions) was named for its observed mutant phenotype. Overproduction or deletion of the EUG1 gene appears to have no effect on cell viability or function. Yeast cells deleted for EUG1 grow with wild-type rates on rich or minimal media at temperatures from 18°( to 40°( and can grow anaerobically. Sporulation is not affected in homozygous eug1t,, cells, nor is the transport of vacuolar and secreted proteins through the secretory pathway. Finally, eug1 cells do not exhibit any increased sensitivity or requirement for cal
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Boylan, S. A., S. Kalman, M. L. Duncan, S. M. Thomas, and C. W. Price. "TWO GENES DEPENDENT ON BACILLUS SUBTILIS σB ARE EXPRESSED IN STATIONARY PHASE UNDER NON-SPORULATING CONDITIONS." In Genetics and Biotechnology of Bacilli. Elsevier, 1990. http://dx.doi.org/10.1016/b978-0-12-274162-3.50044-x.

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Pappas, Peter G. "Sporotrichosis." In Clinical Mycology. Oxford University PressNew York, NY, 2003. http://dx.doi.org/10.1093/oso/9780195148091.003.0022.

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Abstract Sporotrichosis is a chronic pyogranulomatous infection caused by the thermally dimorphic fungus Sporothrix schenckii. Infection is usually limited to the skin and subcutaneous tissues, but can involve virtually any organ in its disseminated form. Less common localized forms of sporotrichosis include arthritis, osteomyelitis, meningitis, chronic pulmonary infection, and ocular disease. Schenck originally described sporotrichosis in 1898 in a 36-year old man who presented with several discrete indurated lesions extending along the lymphatics from the index finger proximally to the forea
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Conference papers on the topic "Sporulation conditions"

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Safiullin, R. T., and E. I. Chalysheva. "CULTURE OF EIMERIA SPP. OOCYSTS OF TURKEY POULTS AND THEIR SPECIES IDENTIFICATION." In THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL. All-Russian Scientific Research Institute for Fundamental and Applied Parasitology of Animals and Plant – a branch of the Federal State Budget Scientific Institution “Federal Scientific Centre VIEV”, 2023. http://dx.doi.org/10.31016/978-5-6048555-6-0.2023.24.414-419.

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In our country, in recent years, much attention has been paid to the development of
 poultry meat production, especially turkey breeding. In the conditions of industrial
 turkey breeding, when a large number of poultry is kept in a limited area, there is a
 high risk of parasitic diseases, one of which is eimeriosis. Knowledge of the species
 composition of Eimeria on a particular poultry farm is of great practical importance
 for the reasonable development of effective methods to control invasion and to
 monitor Eimeria resistance to the drugs used. Eimeria speci
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Lungu, Andrei. "Some features of cultivation of the actinobacterium saccharopolyspora spinosa." In 5th International Scientific Conference on Microbial Biotechnology. Institute of Microbiology and Biotechnology, Republic of Moldova, 2022. http://dx.doi.org/10.52757/imb22.22.

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Purpose: Actinobacteria (actinomycetes) are in the center of attention because these bacteria produce a variety of natural drugs and other biologically active metabolites, including: antibiotics, enzymes, inhibitors. More than 22,000 biologically active secondary metabolites (including antibiotics) produced by microorganisms have been identified and published in the literature and patented. About half of these compounds are produced by actinomycetes. Currently, about 160 antibiotics are used in medicine and agriculture, 100-120 of these compounds, including streptomycin, erythromycin, gentamic
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Nicolaev, Arcadi, та Svetlana Nicolaeva. "Опыт создания сухой препаративной формы биопрепарата на основе Bacillus subtilis". У International Symposium "Actual problems of zoology and parasitology: achievements and prospects". Institute of Zoology, 2018. https://doi.org/10.53937/9789975665902.58.

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The aim of the studies was to create a dry preparative form of a biopreparation based on Bacillus subtilis spores and the determination of an acceptable shelf life without significant loss of the spores viability. The technology for obtaining a dry formulation includes the following steps: cultivation of the bacteria B. subtilis in a liquid nutrient medium to the stage for the maximum sporulation; separation of spore biomass from the nutrient medium; adsorption of spores on a mixture of starch and powdered sugar and , if necessary, the subsequent addition of powdered sugar till creation a pulv
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Reports on the topic "Sporulation conditions"

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Sanabria, Johana, Ginna Quiroga, Cindy Mejía, Erika Grijalba, and Martha Goméz. Effect of abiotic factors on viability and characterization of Metarhizium rileyi Nm017. Corporación colombiana de investigación agropecuaria - AGROSAVIA, 2019. http://dx.doi.org/10.21930/agrosavia.poster.2019.18.

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The species Chloridea virescens and Helicoverpa zea (Lepidoptera: Noctuidae) are declared agricultural pests with a high economic impact worldwide (Angulo et al. 2008). They are widely distributed on the American continent, and agrochemical are the most common method to control, which can cause environmental, social, economic and public impacts. A strain of Metarhizium rileyi Nm017 [AGROSAVIA - Orinoquia area (Col.)], demonstrated an e cacy of 75.8% on C. virescens, and 92.5% on H. zea on laboratory conditions. Mass production and virulence of Metarhizium sp. are susceptible to stress conditio
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Israel, Alvaro, and John Merrill. Production of Seed Stocks for Sustainable Tank Cultivation of the Red Edible Seaweed Porphyra. United States Department of Agriculture, 2006. http://dx.doi.org/10.32747/2006.7696527.bard.

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Porphyra species (commonly known as ‘nori’ or ‘purple laver’) are edible red seaweeds rich in proteins, vitamins and other highly valued biogenic compounds. For years Porphyra has been cultured using seeded nets extended in the open sea, and its biomass consumed primarily in the Far East. While demands for international markets have increased steadily at an average of 20% per year, supplies are on the verge and not expected to meet future demands. Alternatively, land-based cultivation of seaweed has become attractive in the mariculture industry since (1) important growth parameters can be cont
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