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1. Killer toxin-like chitinases in filamentous fungi: Structure, regulation and potential roles in fungal biology

Author:
Karlsson, Magnus,   et al.   ; Tzelepis, Georgios;     Show all 2 Author
Source:
Fungal biology reviews 2019 v.33 no.2 pp. 123-132
ISSN:
1749-4613
Subject:
Kluyveromyces marxianus var. lactis; autolysis; cell walls; chitin; chitinase; conidia; genes; germination; hyphae; lifestyle; mycology; mycoparasites; phylogeny; plant pathogens; saprotrophs; toxins; yeasts
Abstract:
... Fungal chitinases are hydrolytic enzymes responsible for degradation of chitin. Chitinases are involved in several aspects of fungal biology, including cell wall remodelling during hyphal growth, conidial germination, autolysis, mycoparasitism and nutrient acquisition. They are divided into three distinct phylogenetic groups; A, B and C. Chitinases from the C group show structural similarities wit ...
DOI:
10.1016/j.fbr.2018.11.001

2. Biogas production plants; existing classifications and proposed categories

Author:
Karlsson, Magnus,   et al.   ; Lindkvist, Emma;     Show all 2 Author
Source:
Journal of cleaner production 2018 v.174 pp. 1588-1597
ISSN:
0959-6526
Subject:
anaerobic digestion; biogas; energy; terminology
Abstract:
... Production of biogas from anaerobic digestion has the potential to be part of the transition to a renewable based energy system. However, diverse classifications may obstruct knowledge sharing within and between countries, thus potentially hindering development of biogas solutions, as part of an environmentally sustainable renewable based energy system. The aim of this study is to present an appro ...
DOI:
10.1016/j.jclepro.2017.10.317

3. Energy savings and greenhouse gas mitigation potential in the Swedish wood industry

Author:
Karlsson, Magnus,   et al.   ; Johnsson, Simon; Andersson, Elias; Thollander, Patrik;     Show all 4 Authors
Source:
Energy 2019 v.187
ISSN:
0360-5442
Subject:
business enterprises; carbon; case studies; climate change; drying; energy conservation; energy efficiency; experimental design; greenhouse gas emissions; greenhouse gases; kilns; marginal abatement cost curve; pollution control; wood; wood industry
Abstract:
... Improving energy efficiency in industry is recognized as one of the most crucial actions for mitigating climate change. The lack of knowledge regarding energy end-use makes it difficult for companies to know in which processes the highest energy efficiency potential is located. Using a case study design, the paper provides a taxonomy for energy end-use and greenhouse gas (GHG) emissions on a proce ...
DOI:
10.1016/j.energy.2019.115919

4. Drivers, barriers and success factors for energy management in the Swedish pulp and paper industry

Author:
Karlsson, Magnus,   et al.   ; Lawrence, Akvile; Nehler, Therese; Andersson, Elias; Thollander, Patrik;     Show all 5 Authors
Source:
Journal of cleaner production 2019 v.223 pp. 67-82
ISSN:
0959-6526
Subject:
energy efficiency; energy policy; pulp and paper industry
Abstract:
... Research has revealed the existence of an energy-efficiency gap – the difference between optimal and actual energy end-use, suggesting that energy efficiency can be improved. Energy management (EnM) is a means for improving industrial energy efficiency. However, due to various barriers, the full potential of EnM is not realised. Several studies have addressed drivers and barriers to energy efficie ...
DOI:
10.1016/j.jclepro.2019.03.143

5. Effects of monetary investment, payback time and firm characteristics on electricity saving in energy-intensive industry

Author:
Karlsson, Magnus,   et al.   ; Lawrence, Akvile; Nehler, Therese; Thollander, Patrik;     Show all 4 Authors
Source:
Applied energy 2019 v.240 pp. 499-512
ISSN:
0306-2619
Subject:
business enterprises; capital; electricity; energy conservation; energy efficiency; industry; Sweden
Abstract:
... Our study looked at the extent to which firm characteristics such as total firm capital affect electricity saving in energy-intensive industry in Sweden from 2007 to 2015. Specifically, the most influential variables for systematic variation in electricity saving in the energy-intensive companies participating in Sweden’s voluntary programme for improving energy efficiency in energy-intensive indu ...
DOI:
10.1016/j.apenergy.2019.02.060

6. Effects of firm characteristics and energy management for improving energy efficiency in the pulp and paper industry

Author:
Karlsson, Magnus,   et al.   ; Lawrence, Akvile; Thollander, Patrik;     Show all 3 Authors
Source:
Energy 2018 v.153 pp. 825-835
ISSN:
0360-5442
Subject:
business enterprises; electricity costs; energy efficiency; human resources; paper; pulp; pulp and paper industry; raw materials; sales; world markets; Sweden
Abstract:
... The Swedish pulp and paper industry (PPI) must increase energy efficiency to remain competitive on the global market, which has experienced entries from countries with cheaper energy and raw material supplies. Interactions among variables for energy use, production, energy management, electricity price and firm characteristics (FC), in different types of mills, i.e., pulp, paper and integrated mil ...
DOI:
10.1016/j.energy.2018.04.092

7. Real-Time Detection of Intermediates in Rhodium-Catalyzed Hydrogenation of Alkynes and Alkenes by Dissolution DNP

Author:
Karlsson, Magnus,   et al.   ; Boeg, Peter Andreas; Duus, Jens Øllgaard; Ardenkjær-Larsen, Jan Henrik; Mossin, Susanne;     Show all 5 Authors
Source:
Journal of physical chemistry 2019 v.123 no.15 pp. 9949-9956
ISSN:
1932-7455
Subject:
alkenes; alkynes; butanes; carbon; catalysts; hydrogen; hydrogenation; isotope labeling; models; nuclear magnetic resonance spectroscopy; perchlorates; physical chemistry; reaction mechanisms; rhodium; signal-to-noise ratio; stable isotopes
Abstract:
... The hydrogenation of alkynes and alkenes using Shrock–Osborn catalysts was followed in situ with dissolution dynamic nuclear polarization (dDNP) NMR. Natural abundance and ¹³C-labeled dimethyl acetylenedicarboxylate was hyperpolarized prior to hydrogenation using (1,4-bis{diphenylphosphino}butane)(2,5-norbornadiene) rhodium(I) perchlorate, [Rh(NBD)(DPPB)]ClO₄. The increased signal-to-noise ratio o ...
DOI:
10.1021/acs.jpcc.9b01376

8. Deglycosylating enzymes acting on N-glycans in fungi: Insights from a genome survey General subjects

Author:
Karlsson, Magnus,   et al.   ; Tzelepis, Georgios; Suzuki, Tadashi;     Show all 3 Authors
Source:
Biochimica et biophysica acta 2017 v.1861 no.11 pp. 2551-2558
ISSN:
0304-4165
Subject:
Archaea; Ascomycota; bacteria; enzyme activity; enzymes; eukaryotic cells; fungi; genome; glycosides; glycosylation; mycology; surveys; transport proteins
Abstract:
... N-Glycosylation, one of the most prominent post-translational modifications of proteins, is found in all domains of life, i.e. eukaryotes, bacteria and archaea, and has been shown to play a crucial role in modulating the physicochemical/physiological properties of carrier proteins. Deglycosylating enzymes that act on N-glycans are widely used in analyzing the structures/functions of N-glycans. Fun ...
DOI:
10.1016/j.bbagen.2017.08.022

9. How energy price changes can affect production- and supply chain planning – A case study at a pulp company

Author:
Karlsson, Magnus,   et al.   ; Waldemarsson, Martin; Lidestam, Helene;     Show all 3 Authors
Source:
Applied energy 2017 v.203 pp. 333-347
ISSN:
0306-2619
Subject:
case studies; energy; energy costs; guidelines; income; industry; markets; models; planning; prices; profitability; pulp; raw materials; supply chain
Abstract:
... The process industry in general is very energy-intensive, and therefore models focusing on energy can be very important in order to reach higher profitability. In this study, an optimization model of the supply chain in a pulp company, where energy is included with respect to its revenue generating capabilities, is used. Using real company data, and through an analysis of the model’s results, we s ...
DOI:
10.1016/j.apenergy.2017.05.146

10. Detecting Elusive Intermediates in Carbohydrate Conversion: A Dynamic Ensemble of Acyclic Glucose–Catalyst Complexes

Author:
Karlsson, Magnus,   et al.   ; Meier, Sebastian; Jensen, Pernille Rose;     Show all 3 Authors
Source:
ACS sustainable chemistry 2017 v.5 no.6 pp. 5571-5577
ISSN:
2168-0485
Subject:
catalysts; glucose; kinetics; mannose; monitoring; nuclear magnetic resonance spectroscopy; value added
Abstract:
... The role of acyclic carbohydrates in pathways toward value-added chemicals has remained poorly characterized due to the low population of acyclic forms, and due to their instability under reaction conditions. We conduct steady-state and pre-steady-state measurements by direct reaction progress monitoring with sensitivity-optimized NMR spectroscopy in the molybdate-catalyzed epimerization of glucos ...
DOI:
10.1021/acssuschemeng.7b00985

11. Liquid-State 13C Polarization of 30% through Photoinduced Nonpersistent Radicals C

Author:
Karlsson, Magnus,   et al.   ; Capozzi, Andrea; Petersen, Jan Raagaard; Lerche, Mathilde Hauge; Ardenkjaer-Larsen, Jan Henrik;     Show all 5 Authors
Source:
Journal of physical chemistry 2018 v.122 no.13 pp. 7432-7443
ISSN:
1932-7455
Subject:
carbon; free radicals; isotope labeling; magnetic materials; magnetic resonance imaging; physical chemistry; stable isotopes
Abstract:
... Hyperpolarization via dissolution dynamic nuclear polarization (dDNP) is crucial to significantly increasing the magnetic resonance imaging (MRI) sensitivity, opening up in vivo real-time MRI using ¹³C-labeled substrates. The range of applications, however, is limited by the relatively fast decay of the nuclear spin polarization together with the constraint of having to polarize the spins near the ...
DOI:
10.1021/acs.jpcc.8b01482

12. Functional differentiation of chitinases in the white-rot fungus Phanerochaete chrysosporium

Author:
Karlsson, Magnus,   et al.   ; Stenlid, Jan; Lindahl, Björn;     Show all 3 Authors
Source:
Fungal ecology 2016 v.22 pp. 52-60
ISSN:
1754-5048
Subject:
Heterobasidion; Phanerochaete chrysosporium; chitin; chitinase; gene expression; genes; glycosides; hyphae; mycelium; mycology; phylogeny; territoriality; white-rot fungi
Abstract:
... Enzymes that act on chitin, including glycoside hydrolases (GH) family 18 (chitinases) and family 20 (NAGases), may have multiple roles in fungal biology. Here, we describe the number, structure and expression of the eleven GH18 and four GH20 genes identified in the wood-rotting basidiomycete Phanerochaete chrysosporium, and measure endochitinase and NAGase activities in situ. A phylogenetic analy ...
DOI:
10.1016/j.funeco.2016.04.004

13. The ABC transporter ABCG29 is involved in H2O2 tolerance and biocontrol traits in the fungus Clonostachys rosea

Author:
Karlsson, Magnus,   et al.   ; Dubey, Mukesh; Jensen, Dan Funck;     Show all 3 Authors
Source:
Molecular genetics and genomics 2016 v.291 no.2 pp. 677-686
ISSN:
1617-4615
Subject:
ABC transporters; Arabidopsis thaliana; Botrytis cinerea; Clonostachys rosea; Fusarium graminearum; Fusarium oxysporum; active transport; barley; biological control; biological control agents; cell membranes; cell walls; conidia; culture filtrates; fungi; fungicides; gene expression; host plants; hydrogen peroxide; inoculum; leaves; metabolites; osmotic stress; plant pathogens; seedlings; toxicity; xenobiotics; zearalenone
Abstract:
... For successful biocontrol interactions, biological control organisms must tolerate toxic metabolites produced by themselves or plant pathogens during mycoparasitic/antagonistic interactions, by host plant during colonization of the plant, and xenobiotics present in the environment. ATP-binding cassette (ABC) transporters can play a significant role in tolerance of toxic compounds by mediating acti ...
DOI:
10.1007/s00438-015-1139-y

14. Industrial excess heat use: Systems analysis and CO2 emissions reduction

Author:
Karlsson, Magnus,   et al.   ; Broberg Viklund, Sarah;     Show all 2 Author
Source:
Applied energy 2015 v.152 pp. 189-197
ISSN:
0306-2619
Subject:
European Union; carbon dioxide; cooling systems; electricity generation; energy efficiency; greenhouse gas emissions; heat production; heat recovery; market prices; markets; models; primary energy; systems analysis
Abstract:
... The adopted energy efficiency directive stresses the use of excess heat as a way to reach the EU target of primary energy use. Use of industrial excess heat may result in decreased energy demand, CO2 emissions reduction, and economic gains. In this study, an energy systems analysis is performed with the aim of investigating how excess heat should be used, and the impact on CO2 emissions. The manne ...
DOI:
10.1016/j.apenergy.2014.12.023

15. Evaluation of Clonostachys rosea for Control of Plant-Parasitic Nematodes in Soil and in Roots of Carrot and Wheat

Author:
Karlsson, Magnus,   et al.   ; Iqbal, Mudassir; Dubey, Mukesh; McEwan, Kerstin; Menzel, Uwe; Franko, Mikael Andersson; Viketoft, Maria; Jensen, Dan Funck;     Show all 8 Authors
Source:
Phytopathology 2018 v.108 no.1 pp. 52-59
ISSN:
0031-949X
Subject:
Clonostachys rosea; Nematoda; antagonism; antibiosis; biological control; carrots; community structure; culture filtrates; fungi; light microscopy; malt extract; parasitism; plant diseases and disorders; plant growth; plant parasitic nematodes; roots; soil; soil inoculation; toxicity; wheat
Abstract:
... Biological control is a promising approach to reduce plant diseases caused by nematodes. We tested the effect of the fungus Clonostachys rosea strain IK726 inoculation on nematode community composition in a naturally nematode infested soil in a pot experiment, and the effect of C. rosea on plant health. The numbers of plant-parasitic nematode genera extracted from soil and plant roots decreased by ...
DOI:
10.1094/PHYTO-03-17-0091-R

16. The MIND method: A decision support for optimization of industrial energy systems – Principles and case studies

Author:
Karlsson, Magnus
Source:
Applied energy 2011 v.88 no.3 pp. 577-589
ISSN:
0306-2619
Subject:
case studies; decision support systems; energy efficiency; food industry; fuels; greenhouse gas emissions; linear programming; pulp and paper industry; pulp and paper mills; renewable energy sources; Sweden
Abstract:
... Changes in complex industrial energy systems require adequate tools to be evaluated satisfactorily. The MIND method (Method for analysis of INDustrial energy systems) is a flexible method constructed as decision support for different types of analyses of industrial energy systems. It is based on Mixed Integer Linear Programming (MILP) and developed at Linköping University in Sweden. Several indust ...
DOI:
10.1016/j.apenergy.2010.08.021

17. Considering start-ups and shutdowns using an optimisation tool – Including a dairy production planning case study

Author:
Karlsson, Magnus,   et al.   ; Mardan, Nawzad;     Show all 2 Author
Source:
Applied energy 2013 v.107 pp. 338-349
ISSN:
0306-2619
Subject:
case studies; dairy manure; energy; linear programming; models; planning
Abstract:
... There are many different aspects a production-planning model has to be able to handle to make a model adequate for the purpose. One aspect is the handling of start-ups and shutdowns for different processes. The production plan is likely to be changed when considering, for example, a cost connected to the start-up and/or shutdown of processes. Besides costs associated with start-ups and shutdowns, ...
DOI:
10.1016/j.apenergy.2013.02.050

18. Is melanism in pygmy grasshoppers induced by crowding

Author:
Karlsson, Magnus,   et al.   ; Forsman, Anders;     Show all 2 Author
Source:
Evolutionary ecology 2010 v.24 no.5 pp. 975-983
ISSN:
0269-7653
Subject:
Tetrix subulata; animals; color; evolution; loci; phenotype; population density; rearing; stocking rate
Abstract:
... Color polymorphisms in animals may result from plasticity of the developmental system in response to genetic cues in the form of allelic variation at polymorphic loci, environmental cues, or a combination of genetic and environmental cues. An increased understanding of the evolution of color polymorphisms requires better knowledge of when we should expect genetic and environmental cues respectivel ...
DOI:
10.1007/s10682-010-9399-9

19. Correlation of structure, function and protein dynamics in GH7 cellobiohydrolases from Trichoderma atroviride, T. reesei and T. harzianum

Author:
Karlsson, Magnus,   et al.   ; Borisova, Anna S.; Eneyskaya, Elena V.; Jana, Suvamay; Badino, Silke F.; Kari, Jeppe; Amore, Antonella; Hansson, Henrik; Sandgren, Mats; Himmel, Michael E.; Westh, Peter; Payne, Christina M.; Kulminskaya, Anna A.; Ståhlberg, Jerry;     Show all 14 Authors
Source:
Biotechnology for biofuels 2018 v.11 no.1 pp. 5
ISSN:
1754-6834
Subject:
Trichoderma atroviride; Trichoderma harzianum; Trichoderma reesei; active sites; cellulose; cellulose 1,4-beta-cellobiosidase; corn stover; fungi; glycosides; heat inactivation; hydrolysis; ligands; lignocellulose; molecular dynamics; protein engineering; saccharification; sequence diversity; thermal stability
Abstract:
... BACKGROUND: The ascomycete fungus Trichoderma reesei is the predominant source of enzymes for industrial conversion of lignocellulose. Its glycoside hydrolase family 7 cellobiohydrolase (GH7 CBH) TreCel7A constitutes nearly half of the enzyme cocktail by weight and is the major workhorse in the cellulose hydrolysis process. The orthologs from Trichoderma atroviride (TatCel7A) and Trichoderma harzi ...
DOI:
10.1186/s13068-017-1006-7
PubMed:
29344086
PubMed Central:
PMC5766984

20. An ATP-Binding Cassette Pleiotropic Drug Transporter Protein Is Required for Xenobiotic Tolerance and Antagonism in the Fungal Biocontrol Agent Clonostachys rosea

Author:
Karlsson, Magnus,   et al.   ; Dubey, Mukesh K.; Jensen, Dan Funck;     Show all 3 Authors
Source:
Molecular plant-microbe interactions 2014 v.27 no.7 pp. 725-732
ISSN:
0894-0282
Subject:
ABC transporters; Clonostachys rosea; antibiosis; barley; biological control; biological control agents; culture filtrates; drug resistance; drugs; fungi; fungicides; gene expression; metabolites; phenotype; secretion; seedlings; zearalenone
Abstract:
... ATP-binding cassette (ABC) transporters mediate active efflux of natural and synthetic toxicants and are considered to be important for drug tolerance in microorganisms. In biological control agents (BCA), ABC transporters can play important roles in antagonism by providing protection against toxins derived from the fungal prey and by mediating the secretion of endogenous toxins. In the present st ...
DOI:
10.1094/MPMI-12-13-0365-R