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1. Regulation of Clostridioides difficile toxin production

Author:
Aritri Majumdar; Revathi Govind
Source:
Current opinion in microbiology 2022 v.65 pp. 95-100
ISSN:
1369-5274
Subject:
sporulation,   etc   ; Clostridium difficile; gene regulatory networks; mutagenesis; toxins;     Show all 5 Subjects
Abstract:
... Clostridioides difficile produces toxins TcdA and TcdB during infection. Since the severity of the illness is directly correlated with the level of toxins produced, researchers have long been interested in the regulation mechanisms of toxin production. The advent of new genetics and mutagenesis technologies in C. difficile has allowed a slew of new investigations in the last decade, which consider ...
DOI:
10.1016/j.mib.2021.10.018

2. Yeast phospholipase D, Spo14, is not required for macroautophagy

Author:
Yun Chen; Zulin Wu; Lin Dong; Xia You; Yanling Ji; Yongheng Liang
Source:
Yeast 2022 v.39 no.6-7 pp. 401-411
ISSN:
0749-503X
Subject:
sporulation,   etc   ; genes; green fluorescent protein; lipid metabolism; macroautophagy; meiosis; phospholipases; yeasts;     Show all 8 Subjects
Abstract:
... Autophagy‐related gene (Atg) proteins are key players in autophagy. Some proteins that function in vesicle trafficking and lipid metabolism are also involved in autophagy. The SPO14 in yeast, which encodes phospholipase D (PLD), is involved in membrane trafficking and plays a vital role in sporulation during meiosis. Crosstalk has been identified between autophagy and sporulation. Although the PLD ...
DOI:
10.1002/yea.3803

3. Killing me softly - Programmed cell death in plant reproduction from sporogenesis to fertilization

Author:
Fei Xie; Hannah Vahldick; Zongcheng Lin; Moritz K. Nowack
Source:
Current opinion in plant biology 2022 v.69 pp. 102271
ISSN:
1369-5266
Subject:
sporulation,   etc   ; abiotic stress; plant development; pollination; programmed cell death; sex determination;     Show all 6 Subjects
Abstract:
... Regulated or programmed cell death (RCD or PCD) is a fundamental biological principle integral to a considerable variety of functions in multicellular organisms. In plants, different PCD processes are part of biotic and abiotic stress responses, but also occur as an essential aspect of unperturbed plant development. PCD is particularly abundant during plant reproduction, eliminating unwanted or no ...
DOI:
10.1016/j.pbi.2022.102271

4. Postharvest application of imazalil sulphate using a heated flooder for control of citrus green mould

Author:
Arno Erasmus; Catherine Savage; Charlene Jewell; Wilma du Plooy; Paul H. Fourie
Source:
Postharvest biology and technology 2022 v.192 pp. 111987
ISSN:
0925-5214
Subject:
sporulation,   etc   ; Citrus; Penicillium digitatum; fruits; imazalil; pH; postharvest treatment; sulfates; temperature;     Show all 9 Subjects
Abstract:
... High volume aqueous applications of imazalil (IMZ) are commonly used in major citrus producing industries for control of green mould, caused by Penicillium digitatum. The flooder application is a more novel means of application where the heated fungicide solution is applied in high volume and low pressure through weirs creating a waterfall over a set of rotating brushes. A five-weir flooder is com ...
DOI:
10.1016/j.postharvbio.2022.111987

5. A stressing method for producing high-density Trichoderma spores in a dual-layer by utilizing a starch-based medium in a reconditioning approach

Author:
Md. Abuhena; Md. Golam Kabir; Md. Faisal Azim; Jubair Al-Rashid; Noorain Munim Rasul; Md. Amdadul Huq
Source:
Bioresource technology reports 2022 v.19 pp. 101165
ISSN:
2589-014X
Subject:
sporulation,   etc   ; Trichoderma harzianum; agar; experimental design; pH; rice; spores; technology; viability;     Show all 9 Subjects
Abstract:
... A stressing method was adopted to produce Trichoderma harzianum TI21 spores in a dual-layer with an outer-layer spore free of media-residue by reconditioning the starch-based rice agar medium. The essential parameters were explored and optimized using statistical methods. The single factorial test's findings demonstrated that lower-pH and starch-based media encouraged sporulation while suppressing ...
DOI:
10.1016/j.biteb.2022.101165

6. A Comparative Analysis of the Core Proteomes within and among the Bacillus subtilis and Bacillus cereus Evolutionary Groups Reveals the Patterns of Lineage- and Species-Specific Adaptations

Author:
Marios Nikolaidis; Andrew Hesketh; Dimitris Mossialos; Ioannis Iliopoulos; Stephen G. Oliver; Grigorios D. Amoutzias
Source:
Microorganisms 2022 v.10 no.9 pp. -
ISSN:
2076-2607
Subject:
sporulation,   etc   ; Bacillus cereus; Bacillus subtilis; Cereus; genes; genomics; proteome; species identification; therapeutics;     Show all 9 Subjects
Abstract:
... By integrating phylogenomic and comparative analyses of 1104 high-quality genome sequences, we identify the core proteins and the lineage-specific fingerprint proteins of the various evolutionary clusters (clades/groups/species) of the Bacillus genus. As fingerprints, we denote those core proteins of a certain lineage that are present only in that particular lineage and absent in any other Bacillu ...
DOI:
10.3390/microorganisms10091720

7. Embryological studies in Thinouia mucronata and Serjania meridionalis (Paullinieae, Sapindaceae): development of gametophytes in both floral morphs and its phylogenetic implications

Author:
Stella M. Solís; María S. Ferrucci
Source:
Revista brasileira de botânica 2022 v.45 no.1 pp. 399-413
ISSN:
1806-9959
Subject:
sporulation,   etc   ; Sapindaceae; flowering; gametogenesis; gametophytes; hermaphroditism; microsporocytes; monoecy; ontogeny; ovules; phylogeny; pollen;     Show all 12 Subjects
Abstract:
... The tribe Paullinieae is distinguished by a monoecious reproductive system; it exhibits two floral morphs, namely staminate flowers, with gynoecium reduced to a pistillode, and morphologically hermaphrodite but functionally pistillate flowers. The aim of this study was to analyze the development of sporogenesis and gametogenesis in flowers of Thinouia mucronata Radlk. (subtribe Thinouiinae) and Se ...
DOI:
10.1007/s40415-021-00730-y

8. Geobacillus stearothermophilus STCC4517 spore suspensions showed survival curves with shoulder phenomena independent of sporulation temperature and pH, whose duration was an exponential function of treatment temperature.

Author:
V. Ruiz; R. Alonso; P. Mañas; S. Condón; S. Condón-Abanto
Source:
Food microbiology 2022 v.104 pp. 103969
ISSN:
0740-0020
Subject:
sporulation,   etc   ; Geobacillus stearothermophilus; food microbiology; heat tolerance; heat treatment; pH; spores; temperature;     Show all 8 Subjects
Abstract:
... Deviations in linearity in survival curves are common in inactivation kinetics during heat treatment. These might lead one to underestimate how effective thermal treatment is. In previous research we reported a relationship between decimal reduction time values (DT) and shoulder lengths (Sl) of survival curves which was characteristic of each microorganism. However, the impact of other factors suc ...
DOI:
10.1016/j.fm.2021.103969

9. Assessment of downy mildew in grapevine using computer vision and fuzzy logic. Development and validation of a new method

Author:
Inés Hernández; Salvador Gutiérrez; Sara Ceballos; Fernando Palacios; Silvia Laura Toffolatti; Giuliana Maddalena; María Paz Diago; Javier Tardaguila
Source:
OENO One 2022 v.56 no.3 pp. -
ISSN:
2494-1271
Subject:
sporulation,   etc   ; Plasmopara viticola; Vitis; computer vision; downy mildew; fuzzy logic; human resources; leaves;     Show all 8 Subjects
Abstract:
... Downy mildew is a major disease of grapevine. Conventional methods for assessing crop diseases are time-consuming and require trained personnel. This work aimed to develop and validate a new method to automatically estimate the severity of downy mildew in grapevine leaves using fuzzy logic and computer vision techniques. Leaf discs of two grapevine varieties were inoculated with Plasmopara viticol ...
DOI:
10.20870/oeno-one.2022.56.3.5359

10. Sporulation and Biofilms as Survival Mechanisms of Bacillus Species in Low-Moisture Food Production Environments

Author:
Sakshi Lamba; Dechamma Mundanda Muthappa; Séamus Fanning; Amalia G.M. Scannell
Source:
Foodborne pathogens & disease 2022 v.19 no.7 pp. 448-462
ISSN:
1556-7125
Subject:
sporulation,   etc   ; bakery industry; biofilm; food production; food quality; food safety; low moisture foods;     Show all 7 Subjects
Abstract:
... Low-moisture foods (LMF) have clear advantages with respect to limiting the growth of foodborne pathogens. However, the incidences of Bacillus species in LMF reported in recent years raise concerns about food quality and safety, particularly when these foods are used as ingredients in more complex higher moisture products. This literature review describes the interlinked pathways of sporulation an ...
DOI:
10.1089/fpd.2022.0006

11. Effect of the microbial conditioning and temperature increase on the leaf consumption by shredders in Amazonian aquatic systems

Author:
Renato Tavares Martins; Rafael Augusto Pinheiro de Freitas Silva; Valéria Araújo Braule Pinto; Adriana Oliveira Medeiros; Laisa Brito; Neusa Hamada
Source:
Hydrobiologia 2022 v.849 no.16 pp. 3531-3544
ISSN:
0018-8158
Subject:
sporulation,   etc   ; Celastraceae; Goupia; Phylloicus; Protium spruceanum; climate change; larvae; leaves; palatability; streams; temperature;     Show all 11 Subjects
Abstract:
... We used experimental chambers to evaluate the effect of the temperature increasing and microbial conditioning degree on the survival and leaf consumption of two plant species [Protium spruceanum (Burseraceae) and Goupia glabra (Celastraceae)] by larvae of the shredder Phylloicus elektoros. We also evaluated the sporulation rate of the conditioned leaf debris. The leaf discs were incubated for 0, 7 ...
DOI:
10.1007/s10750-022-04953-2

12. Fitness of homothallic and heterothallic isolates of Phytophthora infestans from Mexico

Author:
Jesús Enrique Retes-Manjarrez; Guadalupe Alfonso López-Urquídez; Roberto Martínez Campos; Rogelio Armenta Chavez; Alan Douriet-Angulo; Lorena Molina-Cardenas; Carlos Alfonso López-Orona
Source:
Canadian journal of plant pathology 2022 v.44 no.4 pp. 542-548
ISSN:
1715-2992
Subject:
sporulation,   etc   ; Phytophthora infestans; genetic variation; latent period; pathogens; plant pathology; potatoes; tomatoes; virulence; Mexico;     Show all 10 Subjects
Abstract:
... Phytophthora infestans is an important pathogen of potato and tomato worldwide. Knowledge of the fitness components (FCs), such as pathogenicity, virulence, latent period, lesion area and sporulation of isolates with different mating types from the same region, is important for improved understanding of the evolutionary potential of P. infestans and its short- and long-term management. The FCs and ...
DOI:
10.1080/07060661.2022.2039299

13. Trehalose biosynthetic pathway regulates filamentation response in Saccharomyces cerevisiae

Author:
Revathi Iyer; Paike Jayadeva Bhat
Source:
Molecular biology reports 2022 v.49 no.10 pp. 9387-9396
ISSN:
0301-4851
Subject:
sporulation,   etc   ; Saccharomyces cerevisiae; biochemical pathways; biosynthesis; carbon; diploidy; genetic analysis; molecular biology; nitrogen; trehalose;     Show all 10 Subjects
Abstract:
... BACKGROUND: Diploid cells of Saccharomyces cerevisiae undergo either pseudohyphal differentiation or sporulation in response to depletion of carbon and nitrogen sources. Distinct signaling pathways regulate filamentation and sporulation in response to nutrient limitation. How these pathways are coordinated for implementing distinct cell fate decisions in response to similar nutritional cues is an ...
DOI:
10.1007/s11033-022-07792-5

14. Host nuclear repositioning and actin polarization towards the site of penetration precedes fungal ingress during compatible pea-powdery mildew interactions

Author:
Akriti Sharma; Divya Chandran
Source:
Planta 2022 v.256 no.2 pp. 45
ISSN:
0032-0935
Subject:
sporulation,   etc   ; Erysiphe pisi; Pisum sativum; actin; appressoria; haustoria; mildews; oryzalin; pathogens; peas; powdery mildew;     Show all 11 Subjects
Abstract:
... MAIN CONCLUSION : Actin polarization and actin-driven host nuclear movement towards the fungal penetration site facilitates successful host colonization during compatible pea-Erysiphe pisi interactions. Proper nuclear positioning in plant cells is crucial for developmental processes and response to (a)biotic stimuli. During plant-fungal interactions, the host nucleus moves toward the infection sit ...
DOI:
10.1007/s00425-022-03959-3

15. A grapevine by-product extract enriched in oligomerised stilbenes to control downy mildews: focus on its modes of action towards Plasmopara viticola

Author:
David Taillis; Anthony Pébarthé-Courrouilh; Émilie Lepeltier; Eva Petit; Antonio Palos-Pinto; Julien Gabaston; Jean-Michel Mérillon; Tristan Richard; Stephanie Cluzet
Source:
OENO One 2022 v.56 no.3 pp. -
ISSN:
2494-1271
Subject:
sporulation,   etc   ; Plasmopara viticola; Vitis; byproducts; downy mildew; melons; phytoalexins; potatoes; sophorolipids; stilbenes; tomatoes; zoospores;     Show all 12 Subjects
Abstract:
... Natural extracts, and particularly plant by-product extracts, can represent an eco-friendly alternative to synthetic pesticides to control crop diseases. We produced an extract from a mix of grapevine trunk and roots that contain a high amount of complex stilbenes (grapevine phytoalexins), especially ε- and r-viniferins. This extract conferred protection to grapevines against Plasmopara viticola ( ...
DOI:
10.20870/oeno-one.2022.56.3.4911

16. Life Cycle and Transmission of Cyclospora cayetanensis: Knowns and Unknowns

Author:
Jitender P. Dubey; Asis Khan; Benjamin M. Rosenthal
Source:
Microorganisms 2022 v.10 no.1 pp. -
ISSN:
2076-2607
Subject:
sporulation,   etc   ; Cyclospora cayetanensis; biopsy; epithelium; feces; females; flagellum; gametocytes; histology; males; oocysts; parasites; phylogeny; schizonts;     Show all 14 Subjects
Abstract:
... Although infections with Cyclospora cayetanensis are prevalent worldwide, many aspects of this parasite’s life cycle and transmission remain unknown. Humans are the only known hosts of this parasite. Existing information on its endogenous development has been derived from histological examination of only a few biopsy specimens. Its asexual and sexual stages occur in biliary-intestinal epithelium. ...
DOI:
10.3390/microorganisms10010118

17. Botryosphaeria Dieback (Lasiodiplodia viticola): An Imminent Emerging Threat to the Moroccan Vineyards

Author:
Jihane Kenfaoui; Rachid Lahlali; Mohammed Mennani; Nabil Radouane; Khadija Goura; Hajar El Hamss; Lahsen El Ghadraoui; Florence Fontaine; Abdessalem Tahiri; Essaid Ait Barka; Said Amiri
Source:
Plants 2022 v.11 no.16 pp. -
ISSN:
2223-7747
Subject:
sporulation,   etc   ; Botryosphaeria; Lasiodiplodia; Vitis vinifera; calmodulin; climate; dieback; fungi; genes; pH; pathogens; phylogeny; temperature; Morocco;     Show all 14 Subjects
Abstract:
... A decline of various grapevines (Vitis vinifera L.) in the province of Doukkala in Morocco was observed in 2021. The causal pathogen was identified as Lasiodiplodia viticola based on morphological characteristics and phylogenetic analysis of the internal transcribed region (ITS), the β-tubulin gene (TUB) and calmodulin (cmdA). Koch’s postulates were confirmed by successful re-isolation of L. vitic ...
DOI:
10.3390/plants11162167

18. Myxozoan Community Composition and Diversity in Clinical Cases of Proliferative Gill Disease in Mississippi Catfish Aquaculture

Author:
Justin M. Stilwell; Matt J. Griffin; Geoffrey C. Waldbieser; James B. Stanton; John H. Leary; Lester H. Khoo; James M. Steadman; Cynthia Ware; David J. Wise; Alvin C. Camus
Source:
Journal of parasitology 2022 v.108 no.2 pp. 132-140
ISSN:
0022-3395
Subject:
sporulation,   etc   ; Henneguya; Ictalurus furcatus; Ictalurus punctatus; catfish; community structure; genes; hybrids; metagenomics; parasites; parasitology; Mississippi;     Show all 12 Subjects
Abstract:
... An abundance of morphologically variable Henneguya species complicates the understanding of disease relationships between ictalurid catfish and myxozoan (Phylum: Cnidaria) parasites on North American aquaculture operations. Henneguya ictaluri, the cause of proliferative gill disease (PGD) in channel and hybrid catfish, is arguably the most important parasite of commercial catfish aquaculture in th ...
Handle:
10113/7757840
DOI:
10.1645/21-57

19. Characterization of Putative Sporulation and Germination Genes in Clostridium perfringens Food-Poisoning Strain SM101

Author:
Prabhat K. Talukdar; Mahfuzur R. Sarker
Source:
Microorganisms 2022 v.10 no.8 pp. -
ISSN:
2076-2607
Subject:
sporulation,   etc   ; Bacillus subtilis; Clostridium perfringens; genes; germplasm conservation; mutants; phylogeny; spore germination; spores; vegetative growth;     Show all 10 Subjects
Abstract:
... Bacterial sporulation and spore germination are two intriguing processes that involve the expression of many genes coherently. Phylogenetic analyses revealed gene conservation among spore-forming Firmicutes, especially in Bacilli and Clostridia. In this study, by homology search, we found Bacillus subtilis sporulation gene homologs of bkdR, ylmC, ylxY, ylzA, ytaF, ytxC, yyaC1, and yyaC2 in Clostri ...
DOI:
10.3390/microorganisms10081481

20. Soil fungi invest into asexual sporulation under resource scarcity, but trait spaces of individual isolates are unique

Author:
Tessa Camenzind; Paul Weimershaus; Anika Lehmann; Carlos Aguilar‐Trigueros; Matthias C. Rillig
Source:
Environmental microbiology 2022 v.24 no.7 pp. 2962-2978
ISSN:
1462-2912
Subject:
sporulation,   etc   ; community structure; data collection; fungal communities; fungal growth; mycelium; saprophytes; soil; soil fungi; spores;     Show all 10 Subjects
Abstract:
... During the last few decades, a plethora of sequencing studies provided insight into fungal community composition under various environmental conditions. Still, the mechanisms of species assembly and fungal spread in soil remain largely unknown. While mycelial growth patterns are studied extensively, the abundant formation of asexual spores is often overlooked, though representing a substantial par ...
DOI:
10.1111/1462-2920.16012