Inactivation of stress-resistant ascospores of Eurotiales by industrial sanitizers

Dijksterhuis, Jan; Meijer, M.; Doorn, Tineke van; Samson, Robert A.; Rico-Munoz, Emilia

doi:10.1016/j.ijfoodmicro.2018.06.018

Cited by 19 publications

(8 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The Diaporthales, Magnaporthales, and Malasseziales include mostly opportunistic pathogenic species (Cafarchia et al, 2007; Roy and Mulder, 2014; Zhang et al, 2016; Senanayake et al, 2017). The Eurotiales house high-sporulating, stress-tolerant mold species (Dijksterhuis et al, 2018). The Jahnulales, Myrangiales, Patellariales, and Pleosporales have species known to tolerate stress due to melanized cell walls (Ruibal et al, 2009; Schoch et al, 2009).…”

Section: Resultsmentioning

confidence: 99%

Soil Metatranscriptomes Under Long-Term Experimental Warming and Drying: Fungi Allocate Resources to Cell Metabolic Maintenance Rather Than Decay

et al. 2019

View full text Add to dashboard Cite

Earth’s temperature is rising, and with this increase, fungal communities are responding and affecting soil carbon processes. At a long-term soil-warming experiment in a boreal forest in interior Alaska, warming and warming-associated drying alters the function of microbes, and thus, decomposition of carbon. But what genetic mechanisms and resource allocation strategies are behind these community shifts and soil carbon changes? Here, we evaluate fungal resource allocation efforts under long-term experimental warming (including associated drying) using soil metatranscriptomics. We profiled resource allocation efforts toward decomposition and cell metabolic maintenance, and we characterized community composition. We found that under the warming treatment, fungi allocate resources to cell metabolic maintenance at the expense of allocating resources to decomposition. In addition, we found that fungal orders that house taxa with stress-tolerant traits were more abundant under the warmed treatment compared to control conditions. Our results suggest that the warming treatment elicits an ecological tradeoff in resource allocation in the fungal communities, with potential to change ecosystem-scale carbon dynamics. Fungi preferentially invest in mechanisms that will ensure survival under warming and drying, such as cell metabolic maintenance, rather than in decomposition. Through metatranscriptomes, we provide mechanistic insight behind the response of fungi to climate change and consequences to soil carbon processes.

show abstract

Section: Resultsmentioning

confidence: 99%

Soil Metatranscriptomes Under Long-Term Experimental Warming and Drying: Fungi Allocate Resources to Cell Metabolic Maintenance Rather Than Decay

et al. 2019

View full text Add to dashboard Cite

show abstract

“…However treatment with chemical agents shows little recovery of either dormant and heat-activated spores in the anamorphic phase of B. spectabilis (including disinfection with solutions at 200 and 500 ppm of chlorine dioxide and citric acid-activated sodium chlorite). 10 Also, species of the genus have been found in a remarkable number of marines sources, including the white mangrove Laguncularia racemosa and marine algae showing their ability of adaptation to extreme environments probably explained by their rather strong spore adaptation. 11 Since endophytes have great potential for natural product synthesis, 12 we investigated the secondary metabolite production of the endophytic fungus Byssochlamys spectabilis strain 10536 (DSM 109444) after its isolation from grapevine ( Fig.…”

Section: Structure Elucidation Natural Products Secondary Metabolitesmentioning

confidence: 99%

Viriditins from Byssochlamys spectabilis, their stereochemistry and biosynthesis

López-Fernández

Campisano

Schulz

et al. 2020

Tetrahedron Letters

View full text Add to dashboard Cite

“…niveus (previously known as Byssochlamys nivea), Paec. variotii (previously known as B. spectabilis), and T. macrosporus [15,16]. Understanding these variations in other heat-resistant mold species is crucial for devising effective strategies involving lethal thermal treatments and sanitizers.…”

Section: Introductionmentioning

confidence: 99%

Modeling the Thermal Inactivation of Ascospores from Heat-Resistant Molds in Pineapple Juice and Evaluating Disinfection Efficiency of Sodium Hypochlorite and Chlorine Dioxide

Maneeboon,

Sangchote,

Hongprayoon

et al. 2023

Beverages

View full text Add to dashboard Cite

The contamination and spoilage of heat-treated fruit juices by heat-resistant mold ascospores present significant challenges to the food industry. Understanding effective strategies to mitigate this contamination is vital for ensuring the shelf-life and microbial safety of heat-treated fruit juices. This study investigated the thermal resistance of ascospores from different heat-resistant mold species, including Aspergillus laciniosus, A. chevalieri, A. denticulatus, A. siamensis, Hamigera pallida, and Talaromyces macrosporus, isolated from pineapple and sugarcane field soils. Ascospores inactivation kinetics in pineapple juice under heat treatment (75–97 °C) were analyzed using log-linear and Weibull models. Among these species, A. laciniosus displayed the highest heat resistance (δ-value: 104.59 min at 85 °C), while A. siamensis exhibited the lowest (δ-value: 3.39 min at 80 °C). Furthermore, A. laciniosus, the most heat-resistant species, showed notable tolerance to sanitizers. The most effective inactivation was achieved using 1.0% (w/v) sodium hypochlorite for 15 min. Chlorine dioxide, however, was generally ineffective and even activated dormant ascospores in some cases. The combination of hot water (65 °C for 5 min) with sanitizer increased ascospore reduction in most species but did not achieve the 3-log reduction required by the European Standard N13697. This study revealed a correlation between ascospore resistance to heat and chlorine dioxide, offering significant findings for practical inactivation strategies.

show abstract

Inactivation of stress-resistant ascospores of Eurotiales by industrial sanitizers

Cited by 19 publications

References 25 publications

Soil Metatranscriptomes Under Long-Term Experimental Warming and Drying: Fungi Allocate Resources to Cell Metabolic Maintenance Rather Than Decay

Soil Metatranscriptomes Under Long-Term Experimental Warming and Drying: Fungi Allocate Resources to Cell Metabolic Maintenance Rather Than Decay

Viriditins from Byssochlamys spectabilis, their stereochemistry and biosynthesis

Modeling the Thermal Inactivation of Ascospores from Heat-Resistant Molds in Pineapple Juice and Evaluating Disinfection Efficiency of Sodium Hypochlorite and Chlorine Dioxide

Contact Info

Product

Resources

About