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1. Monokariotic fruiting body and clamp cell formation in Mycoleptodonoides aitchisonii (Bunaharitake)

Author:
Riffiani, Rini; Wada, Takayuki; Shimomura, Norihiro; Yamaguchi, Takeshi; Aimi, Tadanori
Source:
Mycoscience 2019 v.60 no.3 pp. 151-155
ISSN:
1340-3540
Subject:
spores,   etc   ; fruiting; fruiting bodies; meiosis; mushrooms;     Show all 5 Subjects
Abstract:
... The ability to produce monokaryotic fruiting bodies and clamp cells in culture was examined in monokaryotic strain isolated from several dikaryotic parental strains of the edible mushroom, Mycoleptodonoides aitchisonii (Bunaharitake). We describe a single dikaryotic M. aitchisonii strain, TUFC50005, and 20 monokaryons derived from it, which exhibited a wide spectrum of monokaryotic fruiting types. ...
DOI:
10.1016/j.myc.2019.01.004

2. Two New Temperate Polypore Species of Skeletocutis (Polyporales, Basidiomycota)

Author:
Miettinen, Otto; Niemelä, Tuomo
Source:
Annales botanici Fennici 2018 v.55 no.4-6 pp. 195-206
ISSN:
0003-3847
Subject:
spores,   etc   ; Polyporales; fungi; phylogeny;     Show all 4 Subjects
Abstract:
... DNA-based phylogenetic analyses have revealed more species in the fungal genus Skeletocutis than has traditionally been acknowledged. Here we describe two resupinate species as new: S. delicata Niemelä & Miettinen and S. exilis Miettinen & Niemelä. They are very similar to S. brevispora, S. papyracea and S. kuehneri, but differ from them mostly by their spore size and pore characteristics. The rel ...
DOI:
10.5735/085.055.0401

3. Simple membrane filtration method for estimating numbers of Paenibacillus spp. spores in raw milk, using β-galactosidase activity as a selection criterion

Author:
Ohkubo, Yoshiaki; Uchida, Kenji; Motoshima, Hidemasa; Katano, Naoya
Source:
International dairy journal 2019 v.96 pp. 10-14
ISSN:
0958-6946
Subject:
spore-forming bacteria; spores,   etc   ; Paenibacillus amylolyticus; enzyme activity; microfiltration; porosity; raw milk; Japan;     Show all 8 Subjects
Abstract:
... Paenibacillus spp. are spore-forming bacteria that adversely affect the quality of dairy products. There is currently no appropriate method for enumerating Paenibacillus spp. spores. We developed a simple membrane filtration method to enumerate Paenibacillus spp. spores in raw milk, using β-galactosidase activity as a selection criterion. Although Paenibacillus spp. spores are relatively small, us ...
DOI:
10.1016/j.idairyj.2019.04.003

4. Ultrastructural analysis of spores from diverse Bacillales species isolated from Brazilian soil

Author:
de Andrade Cavalcante, Danilo; De‐Souza, Marlene Teixeira; de Orem, Juliana Capela; de Magalhães, Maria Inês André; Martins, Paulo Henrique; Boone, Tyler J.; Castillo, José A.; Driks, Adam
Source:
Environmental microbiology reports 2019 v.11 no.2 pp. 155-164
ISSN:
1758-2229
Subject:
spore-forming bacteria; spores,   etc   ; Brevibacillus; DNA; Lysinibacillus; Paenibacillus; niches; soil; transmission electron microscopy; ultrastructure; Brazil;     Show all 11 Subjects
Abstract:
... Many species in the order Bacillales form a specialized cell type called a spore that is resistant to a range of environmental stresses. Transmission electron microscopy (TEM) reveals that the spore is comprised of a series of concentric shells, surrounding an interior compartment harbouring the spore DNA. The outermost of these shells varies considerably in morphology among species, likely reflec ...
DOI:
10.1111/1758-2229.12713

5. Terbium chloride influences Clostridium difficile spore germination

Author:
Shrestha, Ritu; Sorg, Joseph A.
Source:
Anaerobe 2019
ISSN:
1075-9964
Subject:
spore germination; spores,   etc   ; Clostridium difficile; calcium; endospore forming bacteria; fluorescence; peptones; terbium;     Show all 8 Subjects
Abstract:
... The germination of Clostridium difficile spores is an important stage of the C. difficile life cycle. In other endospore-forming bacteria, the composition of the medium in which the spores are generated influences the abundance of germination-specific proteins, thereby influencing the sensitivity of the spores towards germinants. In C. difficile media composition on the spores has only been report ...
DOI:
10.1016/j.anaerobe.2019.03.016

6. Fluoride movement into and out of Bacillus spores and growing cells and effects of fluoride accumulation on spore properties

Author:
Dong, W.; Setlow, P.
Source:
Journal of applied microbiology 2019 v.126 no.2 pp. 503-515
ISSN:
1364-5072
Subject:
spore germination; spores,   etc   ; Bacillus cereus; Bacillus subtilis; cell growth; heat tolerance; pH; sodium fluoride;     Show all 8 Subjects
Abstract:
... AIMS: To investigate effects of fluoride ion (F⁻) on, and kinetics of its movement into and out of, spores and growing cells of Bacillus species. METHODS AND RESULTS: Effects of F⁻ on Bacillus cell growth, spore germination and outgrowth and heat resistance were investigated, as well as F⁻ movement into and out of spores using ¹⁹F‐NMR. F⁻ inhibited Bacillus subtilis spore germination and outgrowth ...
DOI:
10.1111/jam.14155

7. Can fern spores develop hydration memory in response to priming?

Author:
Pedrero-López, Luis V.; Pérez-García, Blanca; Mehltreter, Klaus; Sánchez-Coronado, María E.; Orozco-Segovia, Alma
Source:
Journal of plant physiology 2019 v.232 pp. 284-290
ISSN:
0176-1617
Subject:
spore germination; spores,   etc   ; ferns and fern allies; laboratory experimentation; seeds; soil; water uptake;     Show all 7 Subjects
Abstract:
... Fern spores and seeds initiate germination with fast water uptake, followed by a stationary phase with no appreciable water uptake and biochemical and metabolic processes that precede germination. After that, seed, germination is avoided by dehydration, as part of the priming treatments. After dehydration, seeds maintain their metabolic advances (hydration memory). As a result, rehydrated seeds ge ...
DOI:
10.1016/j.jplph.2018.11.022

8. Morphological Comparison between Targionia hypophylla L. and T. stellaris (Marchantiophyta) in Subtropical Argentina with Novel Description of the Sporophyte of T. stellaris

Author:
Flores, Jorge R.; Jiménez, Ignacio; Suárez, Guillermo M.
Source:
Cryptogamie 2018 v.39 no.4 pp. 451-458
ISSN:
1776-0992
Subject:
spores,   etc   ; Marchantiophyta; gametophytes; sporophytes; Argentina;     Show all 5 Subjects
Abstract:
... A morphological comparison between Targionia hypophylla L. and T. stellaris Hässel is carried out based on fertile material from northern Argentina. The two species differed in a large number of gametophytic traits, including: epidermal pores, antheridia location and ventral scales shape. The spores of T. stellaris are also described in detail and compared to those of T. hypophylla; their potentia ...
DOI:
10.7872/cryb/v39.iss4.2018.451

9. Non-contact and non-destructive detection and identification of Bacillus anthracis inside paper envelopes

Author:
Kendler, Shai; Aharoni, Ran; Cohen, Shay; Raich, Raviv; Weiss, Shay; Levy, Haim; Mano, Ziv; Fishbain, Barak; Ron, Izhar
Source:
Forensic science international 2019 v.301 pp. e55
ISSN:
0379-0738
Subject:
spores,   etc   ; Bacillus anthracis; algorithms; hyperspectral imagery; paper; screening;     Show all 6 Subjects
Abstract:
... Efficient and safe detection of Bacillus anthracis spores (BAS) is a challenging task especially in bio-terror scenarios where the agent is concealed. We provide a proof-of-concept for the identification of concealed BAS inside mail envelopes using short-wave infrared hyperspectral imaging (SWIR-HSI). The spores and two other benign materials are identified according to their typical absorption sp ...
DOI:
10.1016/j.forsciint.2019.05.007

10. Bioaerosol of salt chambers in the ‘Wieliczka’ Salt Mine, Poland

Author:
Myszkowska, D.; Kostrzon, M.; Dyga, W.; Kędzierska, J.; Namysł, M.; Stanisz, A.; Zagórska, M.; Ziemianin, M.; Obtułowicz, K.; Czarnobilska, E.
Source:
Aerobiologia 2019 v.35 no.2 pp. 297-311
ISSN:
0393-5965
Subject:
spores,   etc   ; air; allergens; bacteria; bioaerosols; microclimate; mites; patients; pollen; Poland;     Show all 10 Subjects
Abstract:
... The ‘Wieliczka’ Salt Mine with specific stable, microclimatic conditions is a unique place, where pulmonary and allergy-related diseases are treated. The aim of this study was to determine the occurrence of biological particles in the air of the ‘Wieliczka’ Salt Mine in relation to the location and time. Twenty measurements were taken quarterly in 2012–2016, in four salt chambers. The volumetric a ...
DOI:
10.1007/s10453-019-09561-7

11. A test of camera surveys to study fungus-animal interactions

Author:
Schmid, Leonie; Bässler, Claus; Schaefer, Hanno; Krah, Franz-Sebastian
Source:
Mycoscience 2019
ISSN:
1340-3540
Subject:
spores,   etc   ; Lactarius; animals; cameras; color; insects; mushrooms; surveys; wind;     Show all 9 Subjects
Abstract:
... Spores of mushroom-forming fungi are thought to be passively dispersed by wind. Studies of the spore morphology and ecological studies suggest, however, that dispersal by animals might also play a role. Since simultaneous and long-term observations of fungus-animal interactions are not feasible, we test the efficiency of time-lapse camera surveys followed by motion detection analysis. We surveyed ...
DOI:
10.1016/j.myc.2019.04.002

12. Multiple evolutionary routes of the single polar capsule in Thelohanellus species (Myxozoa; Myxobolidae)

Author:
Zhang, Xiuping; Liu, Yang; Whipps, Christopher M.; Guo, Qingxiang; Gu, Zemao
Source:
International journal for parasitology 2019 v.8 pp. 56-62
ISSN:
2213-2244
Subject:
spores,   etc   ; Myxobolus; data collection; monophyly; polyphyly; statistical analysis; topology;     Show all 7 Subjects
Abstract:
... Thelohanellus Kudo, 1933 is a species rich genus of Myxosporea, sharing many morphological similarities with species of Myxobolus but the former possesses a single polar capsule, and the latter has two. Based on molecular phylogenetic analyses, this single distinguishing feature is not monophyletic, and members of Thelohanellus are intermixed with Myxobolus species, calling into question the valid ...
DOI:
10.1016/j.ijppaw.2018.11.006

13. Inactivation of Aspergillus sp. spores on whole black peppers by nonthermal plasma and quality evaluation of the treated peppers

Author:
Tanino, Takanori; Arisaka, Takuya; Iguchi, Yuka; Matsui, Masayoshi; Ohshima, Takayuki
Source:
Food control 2019 v.97 pp. 94-99
ISSN:
0956-7135
Subject:
spores,   etc   ; Aspergillus; antioxidant activity; black pepper; gases; microorganisms;     Show all 6 Subjects
Abstract:
... In this study, a rotating nonthermal plasma (NTP) reactor was designed and its practical use for the inactivation of microorganisms on dried granular agricultural products such as black pepper was investigated. As the target microorganism to inactivate in the rotating NTP reactor, Aspergillus spores were artificially inoculated on whole black peppers. Inactivation treatments were carried out under ...
DOI:
10.1016/j.foodcont.2018.10.023

14. Skin nodules associated with parasitism with Henneguya sp. (Cnidaria: Myxosporea) in the neotropical fish Cyphocharax modestus

Author:
Mirandola Dias Vieira, Diego Henrique; Abdallah, Vanessa Doro; José da Silva, Reinaldo; Kozlowiski de Azevedo, Rodney
Source:
Microbial pathogenesis 2019 v.128 pp. 294-300
ISSN:
0882-4010
Subject:
spores,   etc   ; Cyphocharax; Henneguya; body length; dermis; fish; histopathology; hosts; parasitism;     Show all 9 Subjects
Abstract:
... A new myxozoan species, Henneguya sp., is described based on material from skin of Cyphocharax modestus. Mature myxospores are were elongate and ellipsoidal, measuring 21.4 ± 1.2 (19.4–23.2) μm in total length, 5.1 ± 0.3 (4.5–5.8) μm in width, 11.9 ± 0.5 (10.9–12.7) μm in body length and 9.6 ± 0.7 (8.4–10.5) μm in length of the caudal process. The polar capsules were elongated and had unequal size ...
DOI:
10.1016/j.micpath.2019.01.027

15. Observations on research with spores of Bacillales and Clostridiales species

Author:
Setlow, Peter
Source:
Journal of applied microbiology 2019 v.126 no.2 pp. 348-358
ISSN:
1364-5072
Subject:
bacterial spores,   etc   ; Bacillales; Clostridiales; bacteria; disinfection; germination; neutralization;     Show all 7 Subjects
Abstract:
... The purpose of this article is to highlight some areas of research with spores of bacteria of Firmicute species in which the methodology too commonly used is not optimal and generates misleading results. As a consequence, conclusions drawn from data obtained are often flawed or not appropriate. Topics covered in the article include the following: (i) the importance of using well‐purified bacterial ...
DOI:
10.1111/jam.14067

16. Inactivation of Bacillus subtilis spores at various germination and outgrowth stages using intense pulsed light

Author:
Jo, Hye-Lim; Hwang, Hee-Jeong; Chung, Myong-Soo
Source:
Food microbiology 2019 v.82 pp. 409-415
ISSN:
0740-0020
Subject:
bacterial spores; spore-forming bacteria,   etc   ; Bacillus subtilis; food irradiation; food quality; food safety; foods; germination; heat treatment; temperature; vegetative cells;     Show all 11 Subjects
Abstract:
... It is important to inactivate spore-forming bacteria in foods because their spores are highly resistant to various stresses. Although thermal treatment is an effective inactivation method, the associated high temperatures can cause changes in food quality. Intense pulsed light (IPL) is a nonthermal technique that can effectively improve food safety. This study evaluated the inactivation effects of ...
DOI:
10.1016/j.fm.2019.03.013

17. ‘Exploring’ the regulation of Streptomyces growth and development

Author:
Jones, Stephanie E; Elliot, Marie A
Source:
Current opinion in microbiology 2018 v.42 pp. 25-30
ISSN:
1369-5274
Subject:
spores,   etc   ; Streptomyces; developmental stages; hyphae; stress response;     Show all 5 Subjects
Abstract:
... The Streptomyces life cycle encompasses three well-established developmental stages: vegetative hyphae, aerial hyphae and spores. Many regulators governing the transitions between these life cycle stages have been identified, and recent work is shedding light on their specific functions. A new discovery has shown Streptomyces can deviate from this classic life cycle through a process termed ‘explo ...
DOI:
10.1016/j.mib.2017.09.009

18. Spontaneous nongenetic variation of group size creates cheater-free groups of social microbes

Author:
Amherd, Michaela; Velicer, Gregory J; Rendueles, Olaya
Source:
Behavioral ecology 2018 v.29 no.2 pp. 393-403
ISSN:
1465-7279
Subject:
spores,   etc   ; fruiting bodies; group size; microorganisms; starvation;     Show all 5 Subjects
Abstract:
... Social microbes are exposed to cheaters that exploit the advantages of cooperative actions without paying their fair share. Upon starvation, myxobacterial cells cooperatively aggregate into discrete fruiting bodies containing stress-resistant spores. Fruiting bodies formed from a genetically identical population can vary greatly in the number of spores that they carry. We show that such variation ...
DOI:
10.1093/beheco/arx184

19. Species-specific real-time PCR assay for enumeration of Anoxybacillus flavithermus and Geobacillus stearothermophilus spores in dairy products

Author:
Ohkubo, Yoshiaki; Uchida, Kenji; Motoshima, Hidemasa; Katano, Naoya
Source:
International dairy journal 2019 v.93 pp. 15-21
ISSN:
0958-6946
Subject:
spore-forming bacteria; spores,   etc   ; Anoxybacillus flavithermus; Geobacillus stearothermophilus; cream; ethidium; genes; hygiene; milk; nucleotide sequences; oligodeoxyribonucleotides; peptidase K; protein content; quantitative polymerase chain reaction; sporulation;     Show all 15 Subjects
Abstract:
... The thermophilic spore-forming bacteria, Anoxybacillus flavithermus and Geobacillus stearothermophilus, grow readily, especially on milk-powder processing lines, and are important for processing-plant hygiene management. We developed a real-time PCR assay using SYBR Green I to monitor the spores of these species in dairy products. We designed new primer pairs specific for each species from the nuc ...
DOI:
10.1016/j.idairyj.2019.01.015

20. Killing of spores of Bacillus species by cetyltrimethylammonium bromide

Author:
Dong, W.; Green, J.; Korza, G.; Setlow, P.
Source:
Journal of applied microbiology 2019 v.126 no.5 pp. 1391-1401
ISSN:
1364-5072
Subject:
spore germination; spores,   etc   ; Bacillus cereus; Bacillus megaterium; Bacillus subtilis; calcium; cationic surfactants; cetyltrimethylammonium bromide; decontamination; disinfectants; mutants; pH; plate count; proteins; staining; temperature;     Show all 16 Subjects
Abstract:
... AIMS: To investigate effects of the cationic surfactant cetyltrimethylammonium bromide (CTAB), a disinfectant, on spores of Bacillus species. METHODS AND RESULTS: The ability of CTAB to trigger release of Bacillus spores’ large depot of dipicolinic acid (DPA) in a 1 : 1 chelate with Ca²⁺ (CaDPA), and to kill spores was investigated. CTAB‐triggered CaDPA release from spores of Bacillus subtilis, Ba ...
DOI:
10.1111/jam.14242