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1. Microfluidic single-cell analysis in biotechnology: from monitoring towards understanding

Author:
Dusny, Christian; Grünberger, Alexander
Source:
Current opinion in biotechnology 2020 v.63 pp. 26-33
ISSN:
0958-1669
Subject:
environmental factors,   etc   ; biotechnology; monitoring; physiology;     Show all 4 Subjects
Abstract:
... Our understanding of the microbial cell is based on averaged values from bulks. Microfluidic single-cell analysis holds the promise of understanding cellular processes from a single cell perspective. But what is needed to measure single-cell physiology and to disclose the consequences of individuality for biotechnology? Current single-cell research is not yet able to provide all the necessary insi ...
DOI:
10.1016/j.copbio.2019.11.001

2. Factors influencing Candidatus Microthrix parvicella growth and specific filamentous bulking control: A review

Author:
Fan, Nian-Si; Qi, Rong; Huang, Bao-Cheng; Jin, Ren-Cun; Yang, Min
Source:
Chemosphere 2020 v.244 pp. 125371
ISSN:
0045-6535
Subject:
environmental factors,   etc   ; activated sludge; bacteria;     Show all 3 Subjects
Abstract:
... Candidatus Microthrix parvicella has been frequently detected as the dominant filamentous bacteria in bulking sludge and thus seriously affects the stable operation of activated sludge processes. The extremely low growth rate of Ca. M. parvicella and its sensitivity to environmental variations greatly limit the development of effective techniques to control filamentous bulking. Based on previous i ...
DOI:
10.1016/j.chemosphere.2019.125371

3. Relative vorticity is the major environmental factor controlling tropical cyclone intensification over the Western North Pacific

Author:
Wu, Yusi; Chen, Shumin; Li, Weibiao; Fang, Rong; Liu, Haoya
Source:
Atmospheric research 2020 v.237 pp. 104874
ISSN:
0169-8095
Subject:
environmental factors,   etc   ; hurricanes; regression analysis; sea level;     Show all 4 Subjects
Abstract:
... The forecasting skill of tropical cyclone (TC) intensity has improved slowly over recent decades. The focus of this study was environmental vorticity, which is one of the dominant atmospheric factors controlling TC intensity, because few previous studies have investigated the quantitative contribution of environmental vorticity to the intensification of the majority of TCs. Stepwise multiple regre ...
DOI:
10.1016/j.atmosres.2020.104874

4. Prokaryotic communities in multidimensional bottom-pit-mud from old and young pits used for the production of Chinese Strong-Flavor Baijiu

Author:
Zhang, Huimin; Meng, Yajing; Wang, Yanli; Zhou, Qingwu; Li, Anjun; Liu, Guoying; Li, Jingxin; Xing, Xinhui
Source:
Food chemistry 2020 v.312 pp. 126084
ISSN:
0308-8146
Subject:
environmental factors,   etc   ; Lactobacillus; calcium; lactic acid; pH;     Show all 5 Subjects
Abstract:
... The pit mud (PM) prokaryotic communities with obvious difference between old and young PM is essential for solid-fermentation of Chinese Strong-Flavor Baijiu. The bottom-PM (BPM) is considered more important. In this study, the multidimensional prokaryotic communities of old and young BPMs were investigated. The old BPM presented stratified difference within the depth of 0–7 cm, especially, the su ...
DOI:
10.1016/j.foodchem.2019.126084

5. Mechanisms of response to pH shock in microbial fermentation

Author:
Pan, Long; Chen, Xu-Sheng; Wang, Kai-Fang; Mao, Zhong-Gui
Source:
Bioprocess and biosystems engineering 2020 v.43 no.3 pp. 361-372
ISSN:
1615-7591
Subject:
environmental factors,   etc   ; fermentation; genetic variation; pH;     Show all 4 Subjects
Abstract:
... The following review highlights pH shock, a novel environmental factor, as a tool for the improvement of fermentation production. The aim of this review is to introduce some recent original studies on the enhancement of microbial fermentation production by pH shock. Another purpose of this review is to improve the understanding of the processes that underlie physiological and genetic differences, ...
DOI:
10.1007/s00449-019-02232-4

6. Reflections on niches and numbers

Author:
Holt, Robert D.
Source:
Ecography 2020 v.43 no.3 pp. 387-390
ISSN:
0906-7590
Subject:
environmental factors,   etc   ; Allee effect; asymmetry; geometry; niches;     Show all 5 Subjects
Abstract:
... Environmental factors control spatial distributions and local abundances in distinct – but overlapping – ways. Osorio‐Olivera et al. examine when environments near the geometric center of a species' ecological niche – which they assume to be optimal for growth when rare – also harbor the greatest number of individuals on average at equilibrium, and when not. Transient dynamics, Allee effects and m ...
DOI:
10.1111/ecog.04828

7. Sexual Dimorphism and Species Diversity: from Clades to Sites

Author:
Tsuji, Kaoru; Fukami, Tadashi
Source:
Trends in ecology & evolution 2020 v.35 no.2 pp. 105-114
ISSN:
0169-5347
Subject:
environmental factors,   etc   ; phylogeny; sexual dimorphism; species diversity;     Show all 4 Subjects
Abstract:
... A variety of relationships have been observed between sexual dimorphism and species diversity, from positive to negative and nonsignificant. Although many hypotheses have been proposed to explain these relationships, it has proven difficult to understand why patterns are so variable. Most studies on this topic have used clades as phylogenetically independent replicates for pattern analysis, but a ...
DOI:
10.1016/j.tree.2019.09.001

8. Simulated natural environments bolster the effectiveness of a mindfulness programme: A comparison with a relaxation-based intervention

Author:
Choe, Eun Yeong; Jorgensen, Anna; Sheffield, David
Source:
Journal of environmental psychology 2020 v.67 pp. 101382
ISSN:
0272-4944
Subject:
environmental factors,   etc   ; psychology; simulation models; social welfare;     Show all 4 Subjects
Abstract:
... This study assesses the effectiveness of incorporating the beneficial effects of exposure to nature in a 3-week mindfulness programme. Participants (n = 122) were randomly assigned to one of two intervention groups (mindfulness, relaxation group) under different simulated environmental conditions (two natural, two non-natural environments) during an intervention lasting three weeks. The participan ...
DOI:
10.1016/j.jenvp.2019.101382

9. Transgenerational Plasticity in Human-Altered Environments

Author:
Donelan, Sarah C.; Hellmann, Jennifer K.; Bell, Alison M.; Luttbeg, Barney; Orrock, John L.; Sheriff, Michael J.; Sih, Andrew
Source:
Trends in ecology & evolution 2020 v.35 no.2 pp. 115-124
ISSN:
0169-5347
Subject:
environmental factors,   etc   ; parents; phenotype; phenotypic plasticity; progeny;     Show all 5 Subjects
Abstract:
... Our ability to predict how species will respond to human-induced rapid environmental change (HIREC) may depend upon our understanding of transgenerational plasticity (TGP), which occurs when environments experienced by previous generations influence phenotypes of subsequent generations. TGP evolved to help organisms cope with environmental stressors when parental environments are highly predictive ...
DOI:
10.1016/j.tree.2019.09.003

10. Understanding plant communities of the future requires filling knowledge gaps

Author:
Korell, Lotte; Auge, Harald; Chase, Jonathan M.; Harpole, W. Stanley; Knight, Tiffany M.
Source:
Global change biology 2020 v.26 no.2 pp. 328-329
ISSN:
1354-1013
Subject:
environmental factors,   etc   ; climate change; plant communities;     Show all 3 Subjects
Abstract:
... In their response to our letter, De Boek et al. (2019) and Muller, Ballhausen, Lakovic, and Rillig (2019) argue that our conclusion that we need more realistic climate change experiments is too “gloomy” and that we need a plurality of experiments including extremes and multifactorial approaches. We agree that a diversity of experimental approaches is required in order to anticipate the consequence ...
DOI:
10.1111/gcb.14920

11. Late Laborian trapezoids: Function and origin of the first transverse projectile tips of Western Europe prehistory

Author:
Jacquier, Jérémie; Langlais, Mathieu; Naudinot, Nicolas
Source:
Quaternary international 2020
ISSN:
1040-6182
Subject:
environmental factors,   etc   ; Europe; Western European region;     Show all 3 Subjects
Abstract:
... Recently recognized as part of Final Lateglacial tool-kits, trapezoids remain enigmatic tools. The analytical part of this paper focuses on macro and micro-wear traces observed on Late Laborian trapezoids (GS1-Holocene transition, Atlantic facade) and their meaning from a utilitarian point of view. The consistency in the nature and organization of the traces leads us to interpret these implements ...
DOI:
10.1016/j.quaint.2020.01.009

12. Beyond rest and quiescence (endodormancy and ecodormancy): A novel model for quantifying plant–environment interaction in bud dormancy release

Author:
Lundell, Robin; Hänninen, Heikki; Saarinen, Timo; Åström, Helena; Zhang, Rui
Source:
Plant, cell and environment 2020 v.43 no.1 pp. 40-54
ISSN:
0140-7791
Subject:
environmental factors,   etc   ; air temperature; dormancy; models; phenology;     Show all 5 Subjects
Abstract:
... Bud dormancy of plants has traditionally been explained either by physiological growth arresting conditions in the bud or by unfavourable environmental conditions, such as non‐growth‐promoting low air temperatures. This conceptual dichotomy has provided the framework also for developing process‐based plant phenology models. Here, we propose a novel model that in addition to covering the classical ...
DOI:
10.1111/pce.13650

13. The Evolution of Variance Control

Author:
Bruijning, Marjolein; Metcalf, C. Jessica E.; Jongejans, Eelke; Ayroles, Julien F.
Source:
Trends in ecology & evolution 2020 v.35 no.1 pp. 22-33
ISSN:
0169-5347
Subject:
environmental factors,   etc   ; evolution; genetic variation; variance;     Show all 4 Subjects
Abstract:
... Genetically identical individuals can be phenotypically variable, even in constant environmental conditions. The ubiquity of this phenomenon, known as ‘intra-genotypic variability’, is increasingly evident and the relevant mechanistic underpinnings are beginning to be understood. In parallel, theory has delineated a number of formal expectations for contexts in which such a feature would be adapti ...
DOI:
10.1016/j.tree.2019.08.005

14. Supplementing resuscitation-promoting factor (Rpf) enhanced biodegradation of polychlorinated biphenyls (PCBs) by Rhodococcus biphenylivorans strain TG9T

Author:
Ye, Zhe; Li, Hongxuan; Jia, Yangyang; Fan, Jiahui; Wan, Jixing; Guo, Li; Su, Xiaomei; Zhang, Yu; Wu, Wei-Min; Shen, Chaofeng
Source:
Environmental pollution 2020 v.263 pp. 114488
ISSN:
0269-7491
Subject:
environmental factors,   etc   ; aroclors; bacteria; biodegradation; remediation; soil ecology;     Show all 6 Subjects
Abstract:
... The biodegradation of polychlorinated biphenyls (PCBs) occurs slowly when the degrading bacteria enter a low activity state, such as a viable but nonculturable (VBNC) state, under unfavorable environmental conditions. The introduction of resuscitation-promoting factor (Rpf) can re-activate VBNC bacteria. This study tested the feasibility of enhancing PCB biodegradation via supplementing Rpf in liq ...
DOI:
10.1016/j.envpol.2020.114488

15. Symbiotic bacteria of plant-associated fungi: friends or foes?

Author:
Bastías, Daniel A; Johnson, Linda J; Card, Stuart D
Source:
Current opinion in plant biology 2020 v.56 pp. 1-8
ISSN:
1369-5266
Subject:
environmental factors,   etc   ; bacteria; fungi; genotype; hyphae; microsymbionts; mycelium; pathogens;     Show all 8 Subjects
Abstract:
... Many bacteria form symbiotic associations with plant-associated fungi. The effects of these symbionts on host fitness usually depend on symbiont or host genotypes and environmental conditions. However, bacterial endosymbionts, that is those living within fungal cells, may positively regulate host performance as their survival is often heavily dependent on host fitness. Contrary to this, bacteria t ...
DOI:
10.1016/j.pbi.2019.10.010

16. The effectiveness of the unbundling reform in China’s power system from a dynamic efficiency perspective

Author:
She, Zhen-Yu; Meng, Gang; Xie, Bai-Chen; O'Neill, Eoghan
Source:
Applied energy 2020 v.264 pp. 114717
ISSN:
0306-2619
Subject:
environmental factors,   etc   ; economic development; electricity; markets; models; supply balance; China;     Show all 7 Subjects
Abstract:
... To promote the development of the electricity trading market, China launched a new round of power system reform in 2015. Considering environmental and service factors, this study adopts a dynamic data envelopment analysis model with a network structure based on a slacks-based measure approach to evaluate the performance of the power system and its divisions in the 30 provincial-level administrativ ...
DOI:
10.1016/j.apenergy.2020.114717

17. Exploring the relationship between lean construction and environmental sustainability: A review of existing literature to decipher broader dimensions

Author:
Francis, Ann; Thomas, Albert
Source:
Journal of cleaner production 2020 v.252 pp. 119913
ISSN:
0959-6526
Subject:
environmental factors,   etc   ; emissions; energy; environmental impact; environmental sustainability; pollution; wastes;     Show all 7 Subjects
Abstract:
... Lean construction and sustainable construction are perceived to be two individual philosophies that possess distinct goals. Lean construction is oriented towards the process-related parameters of construction associated with improving flow, enhancing productivity, eliminating waste and reducing delays. Meanwhile, sustainable construction aims at reducing the harmful impacts on the environment due ...
DOI:
10.1016/j.jclepro.2019.119913

18. Dust-sized fractions from dustfall and physical weathering in the Gobi Desert

Author:
Wang, Xunming; Cai, Diwen; Zhu, Bingqi; Lou, Junpeng; Li, Danfeng; Zhang, Caixia; Chen, Shuai; Xu, Yanqiang; Cai, Wenjun; Su, Li; Che, Huizheng
Source:
Aeolian research 2020 v.43 pp. 100565
ISSN:
1875-9637
Subject:
environmental factors,   etc   ; climate; dust; sediments; weathering; Central Asia; Gobi Desert;     Show all 7 Subjects
Abstract:
... Changes in the sediment availability in the Gobi Desert are not well estimated under current climate and environmental conditions. Additionally, the contributions of dustfall and dust-sized fractions produced by physical weathering in the Gobi Desert and their significance on gobi surface equilibrium are still poorly understood. The objective of this study is to quantify the amounts of dust-sized ...
DOI:
10.1016/j.aeolia.2020.100565

19. Engineering of ecological niches to create stable artificial consortia for complex biotransformations

Author:
Shahab, Robert L.; Brethauer, Simone; Luterbacher, Jeremy S.; Studer, Michael H.
Source:
Current opinion in biotechnology 2020 v.62 pp. 129-136
ISSN:
0958-1669
Subject:
environmental factors,   etc   ; bioengineering; biofilm; biotransformation; coculture; microorganisms; niches; oxygen;     Show all 8 Subjects
Abstract:
... The design of controllable artificial microbial consortia has attracted considerable interest in recent years to capitalize on the inherent advantages in comparison to monocultures such as the distribution of the metabolic burden by division of labor, the modularity and the ability to convert complex substrates. One promising approach to control the consortia composition, function and stability is ...
DOI:
10.1016/j.copbio.2019.09.008

20. Environmental drivers of metabolic heterogeneity in clonal microbial populations

Author:
Schreiber, Frank; Ackermann, Martin
Source:
Current opinion in biotechnology 2020 v.62 pp. 202-211
ISSN:
0958-1669
Subject:
environmental factors,   etc   ; biochemical pathways; clones; microbial communities; microorganisms; temporal variation;     Show all 6 Subjects
Abstract:
... Microorganisms perform multiple metabolic functions that shape the global cycling of elements, health and disease of their host organisms, and biotechnological processes. The rates, at which different metabolic activities are performed by individual cells, can vary between genetically identical cells within clonal populations. While the molecular mechanisms that result in such metabolic heterogene ...
DOI:
10.1016/j.copbio.2019.11.018