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- Author:
- Magdalena K. Sobol; Michael Chazan; Louis Scott; Sarah A. Finkelstein
- Source:
- Quaternary international 2022 v.614 pp. 98-110
- ISSN:
- 1040-6182
- Subject:
- spores, etc ; Cyperaceae; Holocene epoch; biomass; charcoal; freshwater; models; paleoecology; pollen; stable isotopes; vegetation; Southern Africa; Show all 12 Subjects
- Abstract:
- ... In this study we investigate the timing and nature of moisture availability in the Late Holocene by examining a multiproxy paleoenvironmental record from Kathu Pan at the southern edge of the Kalahari. In a region where organic proxy records are scarce, Kathu Pan provides a unique record of changes in past environmental conditions. Pollen, spore, charcoal, and stable isotope records were obtained ...
- DOI:
- 10.1016/j.quaint.2021.03.013
- https://doi.org/10.1016/j.quaint.2021.03.013
- Author:
- Francesca Ori; Michele Menotta; Marco Leonardi; Antonella Amicucci; Alessandra Zambonelli; Hervé Covès; Marc-André Selosse; Laure Schneider-Maunoury; Giovanni Pacioni; Mirco Iotti
- Source:
- Fungal biology 2021 v.125 no.10 pp. 796-805
- ISSN:
- 1878-6146
- Subject:
- spores, etc ; Deroceras; Mus musculus; Tuber aestivum; Tuber melanosporum; asci; atomic force microscopy; digestion; digestive system; fungivores; genetic barcoding; mycology; mycorrhizae; reproduction; rodents; slugs; truffles; Show all 17 Subjects
- Abstract:
- ... Truffles in the genus Tuber produce subterranean fruiting bodies that are not able to actively discharge their spores in the environment. For this reason, truffles depend on mycophagous animals for reproduction. Fungus consumption (mycophagy) is a behaviour typical of both vertebrates and invertebrates. Mammals, especially rodents, are the most studied group of mycophagists and have been found ...
- DOI:
- 10.1016/j.funbio.2021.05.002
- https://doi.org/10.1016/j.funbio.2021.05.002
- Author:
- Wan-Rou Lin; Szu-Yu Chen; Shih-Ching Hsiao; Pi-Han Wang
- Source:
- Aerobiologia 2021 v.37 no.2 pp. 271-279
- ISSN:
- 0393-5965
- Subject:
- fungal spores, etc ; Aspergillus flavus; allergenicity; aspergillosis; body temperature; fungi; mucus; nose; pathogens; spore germination; Show all 10 Subjects
- Abstract:
- ... Mucus and body temperature serve as the first lines of defense against invading pathogens. When the inhaled particles are deposited in the nose, the respiratory mucus and body temperature potentially impact fungal spore germination and prevent pathogen infections. We hypothesized that respiratory mucus and body temperature impact fungal spore germination. This study aimed to investigate ...
- DOI:
- 10.1007/s10453-020-09689-x
- https://doi.org/10.1007/s10453-020-09689-x
- Author:
- Chika Jude Ugwuodo; Tochukwu Nwamaka Nwagu
- Source:
- International journal of biological macromolecules 2021 v.166 pp. 238-250
- ISSN:
- 0141-8130
- Subject:
- bacterial spores, etc ; adsorption; biocatalysts; commercialization; cortex; exine; germ cells; hydrophobicity; immobilized enzymes; probiotics; sporulation; therapeutics; Show all 12 Subjects
- Abstract:
- ... The ever-increasing applications of enzymes are limited by the relatively poor performance in harsh processing conditions. As a result, there are constant innovations in immobilization protocols for improving biocatalyst activity and stability. Bacterial spores are cheap to generate and highly resistant to environmental stress. The spore core is sheathed by an inner membrane, the germ cell wall ...
- DOI:
- 10.1016/j.ijbiomac.2020.10.171
- https://doi.org/10.1016/j.ijbiomac.2020.10.171
- Author:
- Idalia Kasprzyk; Agnieszka Grinn-Gofroń; Agata Ćwik; Katarzyna Kluska; Paloma Cariñanos; Tomasz Wójcik
- Source:
- Aerobiologia 2021 v.37 no.1 pp. 39-51
- ISSN:
- 0393-5965
- Subject:
- Alternaria; Cladosporium; Drechslera; Epicoccum; Torula; air; allergenicity; biodiversity; fungi; hypersensitivity; people; risk; risk assessment
- Abstract:
- ... Urban green spaces, especially urban parks, are essential for the proper functioning of cities, but they can be a serious source of airborne fungal spores. Aerobiological monitoring was carried out in urban parks of different typology to estimate the risk associated with fungal spores for citizens. Volumetric method was applied with the use of portable Burkard Sampler. In the air of the studied ...
- DOI:
- 10.1007/s10453-020-09671-7
- https://doi.org/10.1007/s10453-020-09671-7
- Author:
- Luis Vidal Pedrero-López; Blanca Pérez-García; Klaus Mehltreter; María Esther Sánchez-Coronado; Alma Orozco-Segovia
- Source:
- Flora 2021 v.274 pp. 151755
- ISSN:
- 0367-2530
- Subject:
- Llavea; Pellaea; Thelypteris; ambient temperature; edaphic factors; ferns and fern allies; flora; germination; glass; longevity; phytoplankton; soil depth; tropical montane cloud forests; viability; vigor; Mexico
- Abstract:
- ... In the laboratory, non-chlorophyllic (orthodox) fern spores are long-lived. However, their potential longevity might not reflect ecological longevity, which determines their viability within the natural soil spore bank. Our aim was to compare ecological (in a semi-natural soil bank) and potential (storage in laboratory–suboptimal conditions) longevity and vigour of fern spores over a period ...
- DOI:
- 10.1016/j.flora.2020.151755
- https://doi.org/10.1016/j.flora.2020.151755
- Author:
- Wen-Zhi Lin; I-Cheng Ma; Jun-Pei Wang; Ping-Chun Hsieh; Cheng-Che Liu; Shao-Yi Hou
- Source:
- Analytical and bioanalytical chemistry 2021 v.413 no.8 pp. 2235-2246
- ISSN:
- 1618-2642
- Subject:
- analytical chemistry; analytical kits; colorimetry; detection limit; fluorescence; fluorescence microscopes; fluorescence microscopy; green fluorescent protein; immobilized enzymes; immunoassays; nanogold
- Abstract:
- ... Lateral flow immunoassays (LFIs) can be used to detect intact bacteria or spores; when gold nanoparticles (AuNPs) are used as the signal reporters, the detection limits are very low. Spore-based surface display has been widely studied for enzyme immobilization and live-nontoxic oral vaccines. In this study, recombinant spores were used to improve the sensitivity of a LFI. We developed a test kit ...
- DOI:
- 10.1007/s00216-021-03195-w
- https://doi.org/10.1007/s00216-021-03195-w
- Author:
- Natthinee Munkongwongsiri; Diva January Aldama-Cano; Rungkarn Suebsing; Dararat Thaiue; Tharinthon Prasartset; Ornchuma Itsathitphaisarn; Kallaya Sritunyalucksana
- Source:
- Aquaculture 2021 v.533 pp. 736178
- ISSN:
- 0044-8486
- Subject:
- spores, etc ; DNA; Enterocytozoon; aquaculture feeds; extrusion; feed supplements; heat; in situ hybridization; manufacturing; polymerase chain reaction; shrimp; shrimp culture; tissues; viability; Show all 14 Subjects
- Abstract:
- ... The microsporidian Enterocytozoon hepatopenaei (EHP) is a major threat for shrimp culture. We hypothesized that commercial feeds processed at 75 °C or higher would present no risk for EHP transmission, even if they test positive for EHP by PCR. To test this hypothesis, the purified EHP spores (1 × 10⁶ spores) were incubated at 25 °C (non-heated) or 75 °C (heated) for 45–60 s prior to determining ...
- DOI:
- 10.1016/j.aquaculture.2020.736178
- https://doi.org/10.1016/j.aquaculture.2020.736178
- Author:
- Alessia I. Delbrück; Yifan Zhang; Vera Hug; Clément Trunet; Alexander Mathys
- Source:
- International journal of food microbiology 2021 v.343 pp. 109088
- ISSN:
- 0168-1605
- Subject:
- Bacillus subtilis; centrifugation; decontamination; food microbiology; germination; pressure treatment; sublethal effects; transmission electron microscopy
- Abstract:
- ... Bacterial spores are a major challenge in industrial decontamination processes owing to their extreme resistance. High-pressure (HP) of 150 MPa at 37 °C can trigger the germination of spores, making them lose their extreme resistance. Once their resistance is lost, germinated spores can easily be inactivated by a mild decontamination step. The implementation of this gentle germination ...
- DOI:
- 10.1016/j.ijfoodmicro.2021.109088
- https://doi.org/10.1016/j.ijfoodmicro.2021.109088
- Author:
- Zhenzhen He; Luting Wang; Yuexian Ge; Siyi Zhang; Yuehui Tian; Xin Yang; Longfei Shu
- Source:
- Journal of hazardous materials 2021 v.417 pp. 126006
- ISSN:
- 0304-3894
- Subject:
- spores, etc ; decision making; disinfection; pathogens; protists; Show all 5 Subjects
- Abstract:
- ... In drinking water systems, waterborne pathogens constitute a significant threat. While most studies focus on a single infectious agent, such as bacteria, fungi, viruses, and protists, the effect of interactions among these infectious agents on disinfection treatment has largely been ignored. In this study, we find that dormant amoeba spores, a frequently found protist in drinking water systems ...
- DOI:
- 10.1016/j.jhazmat.2021.126006
- https://doi.org/10.1016/j.jhazmat.2021.126006
- Author:
- Facundo De Benedetti; María C. Zamaloa; María A. Gandolfo; Néstor R. Cúneo
- Source:
- Review of palaeobotany and palynology 2021 v.290 pp. 104428
- ISSN:
- 0034-6667
- Subject:
- fern spores, etc ; Azolla; Late Cretaceous epoch; evolution; ferns and fern allies; paleobotany; palynology; Argentina; Show all 8 Subjects
- Abstract:
- ... We describe a water fern spore assemblage from the Maastrichtian La Colonia Formation, Chubut Province, Patagonia, Argentina. The assemblage includes three species of Azolla (A. andreisii sp. nov., A. coloniensis, and A. sp. 1), two species of Azollopsis (A. intermedia and A. tomentosa), Crybelosporites pannuceus, Gabonisporis cristata, Ghoshispora sp., Grapnelispora loncochensis, two species ...
- DOI:
- 10.1016/j.revpalbo.2021.104428
- https://doi.org/10.1016/j.revpalbo.2021.104428
- Author:
- Britta Graf; Saskia Hehnke; Melanie Neuwirth; Jörg Hinrichs
- Source:
- International dairy journal 2021 v.113 pp. 104894
- ISSN:
- 0958-6946
- Subject:
- spores, etc ; Anoxybacillus flavithermus; Geobacillus stearothermophilus; agar; germination; heat; heat inactivation; heat tolerance; reaction kinetics; reconstituted milk; skim milk; spoilage; Show all 12 Subjects
- Abstract:
- ... Skim milk powders often contain high spore counts, originating from persistent thermophilic bacilli in the processing plants. Through germination and enzymatic spoilage, product defects in the reconstituted product formulation may result. Heating of skim milk concentrate prior to drying may inactivate these spores. Within this study, a new method to grow thermophilic spores isolated from dairy ...
- DOI:
- 10.1016/j.idairyj.2020.104894
- https://doi.org/10.1016/j.idairyj.2020.104894
- Author:
- Po-Jung Chiu; Jagat Rathod; Yu-Ping Hong; Pei-Jane Tsai; Yuan-Pin Hung; Wen-Chien Ko; Jenn-Wei Chen; Daniel Paredes-Sabja; I-Hsiu Huang
- Source:
- Anaerobe 2021 v.70 pp. 102381
- ISSN:
- 1075-9964
- Subject:
- Clostridium difficile; bacteria; bile; cytokines; cytotoxicity; diarrhea; large intestine; macrophages; mice; mutants; pathogenesis; sporulation
- Abstract:
- ... Clostridioides difficile is a gram-positive, spore-forming anaerobic bacterium, and the leading cause of antibiotic-associated diarrhea worldwide. During C. difficile infection, spores germinate in the presence of bile acids into vegetative cells that subsequently colonize the large intestine and produce toxins. In this study, we demonstrated that C. difficile spores can universally adhere ...
- DOI:
- 10.1016/j.anaerobe.2021.102381
- https://doi.org/10.1016/j.anaerobe.2021.102381
- Author:
- Tolgor Bau; Jun-Qing Yan
- Source:
- MycoKeys 2021 v.80 pp. 149-161
- ISSN:
- 1314-4049
- Subject:
- color; new combination; phylogeny; rare species; sequence analysis; China
- Abstract:
- ... Most species of Candolleomyces have brown or dark brown spores. Although pale-spored members are rare in the genus we frequently collected two such species from many Provinces during our investigations in subtropical China from 2016–2020. As revealed by morphological characterisation and multigene phylogenetic analyses (ITS LSU β-tub and tef-1α) these species which we have named C. subcacao and C ...
- DOI:
- 10.3897/mycokeys.80.67166
- https://doi.org/10.3897/mycokeys.80.67166
- Author:
- Anne Gabrielle Mathot; Florence Postollec; Ivan Leguerinel
- Source:
- Comprehensive reviews in food science and food safety 2021 v.20 no.1 pp. 840-862
- ISSN:
- 1541-4337
- Subject:
- Bacillus cereus; Bacillus licheniformis; Clostridium; cross contamination; food industry; food safety; microbial contamination; pepper; processed foods; soil; spoilage; turmeric
- Abstract:
- ... Production and world consumption of spices are constantly increasing. Although the antimicrobial properties of some spices are well documented, their use in the agri‐food industry is also responsible for microbial contamination and spoilage. Bacterial spores introduced by spices can withstand different preparation processes, particularly thermal treatments, leading to food alterations during ...
- DOI:
- 10.1111/1541-4337.12690
- https://doi.org/10.1111/1541-4337.12690
- Author:
- S.I. Murphy; D. Kent; J. Skeens; M. Wiedmann; N.H. Martin
- Source:
- Journal of dairy science 2021 v.104 no.3 pp. 2615-2631
- ISSN:
- 0022-0302
- Subject:
- spores, etc ; agar; dairy industry; dairy science; data collection; dried milk; heat tolerance; milk; plate count; starch; temperature; variance; Show all 12 Subjects
- Abstract:
- ... Contamination of dairy powders with sporeforming bacteria is a concern for dairy processors who wish to penetrate markets with stringent spore count specifications (e.g., infant powders). Despite instituted specifications, no standard methodology is used for spore testing across the dairy industry. Instead, a variety of spore enumeration methods are in use, varying primarily by heat-shock ...
- DOI:
- 10.3168/jds.2020-19313
- https://doi.org/10.3168/jds.2020-19313
- Author:
- Joseph Wood; Abderrahmane Touati; Ahmed Abdel-Hady; Denise Aslett; Francis Delafield; Worth Calfee; Erin Silvestri; Shannon Serre; Leroy Mickelsen; Christine Tomlinson; Anne Mikelonis
- Source:
- Journal of environmental management 2021 v.280 pp. 111684
- ISSN:
- 0301-4797
- Subject:
- spores, etc ; Bacillus anthracis; aerosols; clay; decontamination; heat inactivation; heat treatment; metropolitan areas; relative humidity; remediation; soil depth; stainless steel; temperature; Show all 13 Subjects
- Abstract:
- ... In the event of a large, aerosol release of Bacillus anthracis spores in a major metropolitan area, soils and other outdoor materials may become contaminated with the biological agent. A study was conducted to assess the in-situ remediation of soil using a dry thermal treatment approach to inactivate a B. anthracis spore surrogate inoculated into soil samples. The study was conducted in two ...
- DOI:
- 10.1016/j.jenvman.2020.111684
- https://doi.org/10.1016/j.jenvman.2020.111684
- Author:
- Yasir Adil Jabbar Alabdali; Peter Oatley; Joseph A. Kirk; Robert P. Fagan
- Source:
- Anaerobe 2021 v.70 no. pp. 102379
- ISSN:
- 1075-9964
- Subject:
- spores, etc ; Bacillus subtilis; Clostridium difficile; biogenesis; cell differentiation; cortex; dimerization; genome; heat tolerance; microscopy; mutagenesis; pathogens; peptidoglycans; phenotype; sporulation; Show all 15 Subjects
- Abstract:
- ... Sporulation is a complex cell differentiation programme shared by many members of the Firmicutes, the end result of which is a highly resistant, metabolically inert spore that can survive harsh environmental insults. Clostridioides difficile spores are essential for transmission of disease and are also required for recurrent infection. However, the molecular basis of sporulation is poorly ...
- DOI:
- 10.1016/j.anaerobe.2021.102379
- https://doi.org/10.1016/j.anaerobe.2021.102379
19. Impact of shoulders on the calculus of heat sterilization treatments with different bacterial spores
- Author:
- V. Ruiz; R. Alonso; M. Salvador; S. Condón; S. Condón-Abanto
- Source:
- Food microbiology 2021 v.94 pp. 103663
- ISSN:
- 0740-0020
- Subject:
- bacterial spores, etc ; Bacillus cereus; equations; food industry; food microbiology; food preservation; heat; heat inactivation; heat tolerance; heat treatment; temperature; Show all 11 Subjects
- Abstract:
- ... to evaluate the variability of shoulder length among different sporulated species, the impact of treatment temperature on these shoulders and the relationship between the traditional DT value and shoulder length. The heat inactivation kinetics of five bacterial spores of importance for the food industry was evaluated. B. weihenstephanensis and B. cereus did not show shoulders and DT values calculated ranged ...
- DOI:
- 10.1016/j.fm.2020.103663
- https://doi.org/10.1016/j.fm.2020.103663
- Author:
- Charlotte Mappa; Olivier Pible; Jean Armengaud; Béatrice Alpha-Bazin
- Source:
- Environmental science and pollution research 2021 v.28 no.20 pp. 25107-25115
- ISSN:
- 0944-1344
- Subject:
- Bacillus atrophaeus; biomarkers; bioterrorism; pathogens; pollution; proteomics; quantitative analysis; research; tandem mass spectrometry
- Abstract:
- ... a methodology based on next-generation proteomics and tandem mass spectrometry for discovering numerous protein biomarkers allowing the discrimination of spores and vegetative cells of Bacillus atrophaeus, a biowarfare simulant. We propose a global quantitative evaluation of the two groups of discriminant biomarkers based on their aggregated normalized spectral abundance factors. ...
- DOI:
- 10.1007/s11356-018-3341-z
- https://doi.org/10.1007/s11356-018-3341-z