Revista y Edición

Volumen 73 (2022): Edición 1 (March 2022)

Volumen 72 (2022): Edición 3 (September 2022)

Volumen 72 (2021): Edición 2 (June 2021)

Volumen 72 (2021): Edición 1 (March 2021)

Volumen 71 (2020): Edición 4 (December 2020)

Volumen 71 (2020): Edición 3 (September 2020)

Volumen 71 (2020): Edición 2 (June 2020)

Volumen 71 (2020): Edición 1 (March 2020)

Volumen 70 (2019): Edición 4 (December 2019)

Volumen 70 (2019): Edición 3 (December 2019)
Special Edición: with invited papers from the 47th International Symposium „Actual tasks on Agricultural Engineering“ (ATAE), 5th – 7th March 2019, Opatija, Croatia, http://atae.agr.hr/, Editor: Prof. Andreas Gronauer

Volumen 70 (2019): Edición 2 (June 2019)

Volumen 70 (2019): Edición 1 (March 2019)

Volumen 69 (2018): Edición 4 (December 2018)

Volumen 69 (2018): Edición 3 (September 2018)

Volumen 69 (2018): Edición 2 (June 2018)

Volumen 69 (2018): Edición 1 (March 2018)

Volumen 68 (2017): Edición 4 (December 2017)

Volumen 68 (2017): Edición 3 (September 2017)

Volumen 68 (2017): Edición 2 (June 2017)

Volumen 68 (2017): Edición 1 (March 2017)

Volumen 67 (2016): Edición 4 (December 2016)

Volumen 67 (2016): Edición 3 (September 2016)

Volumen 67 (2016): Edición 2 (June 2016)

Volumen 67 (2016): Edición 1 (March 2016)

Detalles de la revista
Formato
Revista
eISSN
2719-5430
Publicado por primera vez
30 Mar 2016
Periodo de publicación
4 veces al año
Idiomas
Inglés

Buscar

Volumen 72 (2021): Edición 2 (June 2021)

Detalles de la revista
Formato
Revista
eISSN
2719-5430
Publicado por primera vez
30 Mar 2016
Periodo de publicación
4 veces al año
Idiomas
Inglés

Buscar

4 Artículos

Research Article

Acceso abierto

Modulation of the endosomal pathway for optimized response to drought stress: from model to crop plants

Publicado en línea: 09 May 2022
Páginas: 57 - 72

Resumen

Abstract

The current climate situation potentiates the need for distinctive crops which have to be high yielding and resilient to abiotic and biotic stresses, particularly to drought stress. Responses to stresses are regulated and coordinated by phytohormones, whose transport and perception are commonly centered around plasma membrane (PM)-localized proteins. Localization and abundance of these are organized by endosomal trafficking, whereby the post-translational modification of PM proteins with the small protein ubiquitin is key in signaling their endocytosis and degradation. This review focuses on the endosomal degradation pathway in plants with a special focus on a protein family termed TARGET OF MYB1 (TOM1)-LIKE (TOLs), responsible for initiating sorting of ubiquitinated proteins destined for degradation. TOLs, albeit having apparent redundancies, play a role in very specific pathways where they may be relevant for fine-tuning of plant hormone signaling by means of tightly controlled protein turnover. Understanding the function of TOLs could give key insights into the mechanisms by which plants define the trade-off between stress tolerance and plant development when faced with challenging environments. Findings obtained in the model plant Arabidopsis thaliana provide a solid foundation for translational research aimed at breeding more tolerant crops.

Palabras clave

  • endosomal trafficking
  • ubiquitin
  • ESCRT-0
  • ABA
  • drought tolerance

Schlagwörter

  • endosomaler Transport
  • Ubiquitin
  • ESCRT-0
  • ABA
  • Trockentoleranz
Acceso abierto

Analysis of the impacts of the COVID-19 pandemic on the drinking milk supply chain in Austria by means of a business process modelling and System Dynamics approach

Publicado en línea: 09 May 2022
Páginas: 73 - 82

Resumen

Abstract

Dairy farming is an important branch of agricultural production for the supply of the Austrian population with domestic food. This paper examines the impact of the COVID-19 pandemic on the Austrian drinking milk supply chain. For this purpose, a tripartite approach was chosen consisting of a process description using Business Process Model and Notation (BPMN), a qualitative System Dynamics analysis with a Causal Loop Diagram (CLD), and the use case of the COVID-19 pandemic in the year 2020 in Austria. The results show that the drinking milk supply chain is complex and consists of many individual process steps. However, the number of locations that are passed through during drinking milk production is rather small. The CLD revealed that reinforcing feedback loops occur in the provision of packaging material and the availability of dairy staff. Analysis of the use case showed that the system of dairy production in Austria is stable in the tested scenario, and that the supply chains preserved their function also during the pandemic. Dairies with diverse product ranges were able to react more easily to the massively changed demand situation. The insights gained by this research may be used to increase the resilience of the drinking milk supply chain. Furthermore, the methodological approach can be transferred and used to analyse the supply chains of other foods.

Palabras clave

  • System Dynamics
  • business process modelling
  • COVID-19 pandemic
  • drinking milk supply chain
  • dairy production

Schlagwörter

  • System Dynamics
  • Geschäftsprozessmodellierung
  • COVID-19 Pandemie
  • Trinkmilchlieferkette
  • Trinkmilchproduktion
Acceso abierto

Lantana charcoal as potent carrier material for Azotobacter chroococcum

Publicado en línea: 09 May 2022
Páginas: 83 - 91

Resumen

Abstract

Azotobacter chroococcum is a universally accepted plant growth-promoting rhizospheric bacterium, which, as a biofertilizer, helps to increase the nitrogen level, solubilize the unavailable form of phosphorus, ensure growth-promoting metabolites, and control pathogenic microbes in the soil. A good strain of plant growth-promoting rhizobacteria (PGPR) needs to be produced, formulated, transported, stored, and distributed to the agriculture field. During all these operations, bacterial inoculants are transferred via a carrier material. One of the important challenges in biofertilizer technology is to ensure stability of the bacteria in the carrier. The study aimed to assess a novel carrier Lantana charcoal (LC; obtained from Lantana camara biomass), as compared to some currently available carriers. LC exhibited higher carbon content, low N2 content, neutral pH, and, above all, higher water-holding capacity, making it a suitable carrier material for A. chroococcum and possibly other PGPR. As a carrier, it showed no contamination during storage, exhibited the highest moisture content and moderate culture holding coefficient, and supported the highest colony-forming units per gram at the end of the storage period. Thus, LC cannot only serve as a better carrier, but its large-scale application would also ensure a reasonable use of this weed.

Palabras clave

  • Plant growth-promoting rhizobacteria
  • 5576
  • water retention capacity
  • water-holding capacity

Schlagwörter

  • Rhizobakterien
  • die das Pflanzenwachstum fördern
  • 5576
  • Wasserrückhaltekapazität
  • Wasserhaltekapazität
Acceso abierto

Use of proteases to improve filtration and stability of Austrian wine

Publicado en línea: 09 May 2022
Páginas: 93 - 103

Resumen

Abstract

Wine haze often occurs after bottling due to insufficient protein stabilization and is often referred as a quality defect by customers. To prevent wine haze, bentonite is commonly used to remove certain protein fractions. Proteases may represent an alternative to bentonite, especially Aspergillopepsin. The aim of this work was to find out if there are advantages for winemaker by using an acid protease, in the field of filtration performance and prophylaxis for protein haze. For this purpose, the products Lallzyme P1 and Lallzyme P2 from the company Lallemand GmbH were tested on the variety Green Veltliner. The results showed that there were large differences in filtration performance. Enzyme addition increased filterability of wines, whereas heating sample lowered it. The best filterability was shown by sample to which both enzyme Lallzyme P1, Lallzyme P2 and pectinases were added and heated. The blocking value was highest where no enzymes were added. However, in the visualization of the proteins by SDS-PAGE, differences in band patterns before and after enzyme treatment could be detected. Sensory, heated wines could be clearly differentiated from unheated samples. The enzyme variants themselves did not show any major difference in taste within the different variants.

Palabras clave

  • Aspergillopepsin
  • protein haze
  • Grüner Veltliner
  • benonite replacement
  • heating

Schlagwörter

  • Aspergillopepsin
  • Eiweißtrübung
  • Grüner Veltliner
  • Bentonitersatz
  • Erhitzung
4 Artículos

Research Article

Acceso abierto

Modulation of the endosomal pathway for optimized response to drought stress: from model to crop plants

Publicado en línea: 09 May 2022
Páginas: 57 - 72

Resumen

Abstract

The current climate situation potentiates the need for distinctive crops which have to be high yielding and resilient to abiotic and biotic stresses, particularly to drought stress. Responses to stresses are regulated and coordinated by phytohormones, whose transport and perception are commonly centered around plasma membrane (PM)-localized proteins. Localization and abundance of these are organized by endosomal trafficking, whereby the post-translational modification of PM proteins with the small protein ubiquitin is key in signaling their endocytosis and degradation. This review focuses on the endosomal degradation pathway in plants with a special focus on a protein family termed TARGET OF MYB1 (TOM1)-LIKE (TOLs), responsible for initiating sorting of ubiquitinated proteins destined for degradation. TOLs, albeit having apparent redundancies, play a role in very specific pathways where they may be relevant for fine-tuning of plant hormone signaling by means of tightly controlled protein turnover. Understanding the function of TOLs could give key insights into the mechanisms by which plants define the trade-off between stress tolerance and plant development when faced with challenging environments. Findings obtained in the model plant Arabidopsis thaliana provide a solid foundation for translational research aimed at breeding more tolerant crops.

Palabras clave

  • endosomal trafficking
  • ubiquitin
  • ESCRT-0
  • ABA
  • drought tolerance

Schlagwörter

  • endosomaler Transport
  • Ubiquitin
  • ESCRT-0
  • ABA
  • Trockentoleranz
Acceso abierto

Analysis of the impacts of the COVID-19 pandemic on the drinking milk supply chain in Austria by means of a business process modelling and System Dynamics approach

Publicado en línea: 09 May 2022
Páginas: 73 - 82

Resumen

Abstract

Dairy farming is an important branch of agricultural production for the supply of the Austrian population with domestic food. This paper examines the impact of the COVID-19 pandemic on the Austrian drinking milk supply chain. For this purpose, a tripartite approach was chosen consisting of a process description using Business Process Model and Notation (BPMN), a qualitative System Dynamics analysis with a Causal Loop Diagram (CLD), and the use case of the COVID-19 pandemic in the year 2020 in Austria. The results show that the drinking milk supply chain is complex and consists of many individual process steps. However, the number of locations that are passed through during drinking milk production is rather small. The CLD revealed that reinforcing feedback loops occur in the provision of packaging material and the availability of dairy staff. Analysis of the use case showed that the system of dairy production in Austria is stable in the tested scenario, and that the supply chains preserved their function also during the pandemic. Dairies with diverse product ranges were able to react more easily to the massively changed demand situation. The insights gained by this research may be used to increase the resilience of the drinking milk supply chain. Furthermore, the methodological approach can be transferred and used to analyse the supply chains of other foods.

Palabras clave

  • System Dynamics
  • business process modelling
  • COVID-19 pandemic
  • drinking milk supply chain
  • dairy production

Schlagwörter

  • System Dynamics
  • Geschäftsprozessmodellierung
  • COVID-19 Pandemie
  • Trinkmilchlieferkette
  • Trinkmilchproduktion
Acceso abierto

Lantana charcoal as potent carrier material for Azotobacter chroococcum

Publicado en línea: 09 May 2022
Páginas: 83 - 91

Resumen

Abstract

Azotobacter chroococcum is a universally accepted plant growth-promoting rhizospheric bacterium, which, as a biofertilizer, helps to increase the nitrogen level, solubilize the unavailable form of phosphorus, ensure growth-promoting metabolites, and control pathogenic microbes in the soil. A good strain of plant growth-promoting rhizobacteria (PGPR) needs to be produced, formulated, transported, stored, and distributed to the agriculture field. During all these operations, bacterial inoculants are transferred via a carrier material. One of the important challenges in biofertilizer technology is to ensure stability of the bacteria in the carrier. The study aimed to assess a novel carrier Lantana charcoal (LC; obtained from Lantana camara biomass), as compared to some currently available carriers. LC exhibited higher carbon content, low N2 content, neutral pH, and, above all, higher water-holding capacity, making it a suitable carrier material for A. chroococcum and possibly other PGPR. As a carrier, it showed no contamination during storage, exhibited the highest moisture content and moderate culture holding coefficient, and supported the highest colony-forming units per gram at the end of the storage period. Thus, LC cannot only serve as a better carrier, but its large-scale application would also ensure a reasonable use of this weed.

Palabras clave

  • Plant growth-promoting rhizobacteria
  • 5576
  • water retention capacity
  • water-holding capacity

Schlagwörter

  • Rhizobakterien
  • die das Pflanzenwachstum fördern
  • 5576
  • Wasserrückhaltekapazität
  • Wasserhaltekapazität
Acceso abierto

Use of proteases to improve filtration and stability of Austrian wine

Publicado en línea: 09 May 2022
Páginas: 93 - 103

Resumen

Abstract

Wine haze often occurs after bottling due to insufficient protein stabilization and is often referred as a quality defect by customers. To prevent wine haze, bentonite is commonly used to remove certain protein fractions. Proteases may represent an alternative to bentonite, especially Aspergillopepsin. The aim of this work was to find out if there are advantages for winemaker by using an acid protease, in the field of filtration performance and prophylaxis for protein haze. For this purpose, the products Lallzyme P1 and Lallzyme P2 from the company Lallemand GmbH were tested on the variety Green Veltliner. The results showed that there were large differences in filtration performance. Enzyme addition increased filterability of wines, whereas heating sample lowered it. The best filterability was shown by sample to which both enzyme Lallzyme P1, Lallzyme P2 and pectinases were added and heated. The blocking value was highest where no enzymes were added. However, in the visualization of the proteins by SDS-PAGE, differences in band patterns before and after enzyme treatment could be detected. Sensory, heated wines could be clearly differentiated from unheated samples. The enzyme variants themselves did not show any major difference in taste within the different variants.

Palabras clave

  • Aspergillopepsin
  • protein haze
  • Grüner Veltliner
  • benonite replacement
  • heating

Schlagwörter

  • Aspergillopepsin
  • Eiweißtrübung
  • Grüner Veltliner
  • Bentonitersatz
  • Erhitzung

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