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1. Bacteria as an alternate biofactory for carotenoid production: A review of its applications, opportunities and challenges

Author:
Ram, Shristi; Mitra, Madhusree; Shah, Freny; Tirkey, Sushma Rani; Mishra, Sandhya
Source:
Journal of functional foods 2020 v.67 pp. 103867
ISSN:
1756-4646
Subject:
starvation,   etc   ; antioxidant activity; bacteria; carotenoids; commercialization; dietary supplements; genetic engineering;     Show all 7 Subjects
Abstract:
... Carotenoid has gained a reputation amongst researchers for its robust antioxidant capabilities. This review reasons the inevitability of carotenoid for a larger role than just dietary supplements. In an era dominated by chemical or plant-derived carotenoid, bacterial carotenoid provides a compelling forte to be exploited as a promising alternative. Bacteria are amazingly resourceful beings; howeve ...
DOI:
10.1016/j.jff.2020.103867

2. Evaluation of bioaerosols by flow cytometry and removal performance in a biofilter treating toluene/ethyl acetate vapors

Author:
Flores-Barbosa, Ana Betsabé; Aizpuru, Aitor; Quijano, Guillermo; Arriaga, Sonia
Source:
Chemosphere 2020 v.251 pp. 126404
ISSN:
0045-6535
Subject:
starvation,   etc   ; bioaerosols; biofilters; cell viability; ethyl acetate; flow cytometry; perlite; toluene; vapors;     Show all 9 Subjects
Abstract:
... The removal efficiency (RE) and bioaerosol emission of a perlite biofilter treating vapors of toluene (T) and/or ethyl acetate (EA) were assessed, under different operating conditions, during 171 days. Under the first stages of operation, a mixture of EA and T was treated, with equivalent inlet loads (ILs) of each compound (ranging from 26 to 84 g m⁻³ h⁻¹), achieving a 100% RE of EA, and a maximum ...
DOI:
10.1016/j.chemosphere.2020.126404

3. Desmodesmus sp. pigment and FAME profiles under different illuminations and nitrogen status

Author:
Pozzobon, Victor; Levasseur, Wendie; Guerin, Cédric; Gaveau-Vaillant, Nathalie; Pointcheval, Marion; Perré, Patrick
Source:
Bioresource technology reports 2020 v.10 pp. 100409
ISSN:
2589-014X
Subject:
starvation,   etc   ; Desmodesmus; chlorophyll; freshwater lakes; linoleic acid; lutein; microalgae; nitrogen; oleic acid; photobioreactors; violaxanthin;     Show all 11 Subjects
Abstract:
... Acknowledging the limited knowledge available on microalgae Desmodesmus sp., a specimen isolated from nearby freshwater lake was studied. Photobioreactor runs were led at two different illuminations (moderate - 150 μmolPhotonPAR/m²/s - and high - 300 μmolPhotonPAR/m²/s) and under three nitrogen status: sufficient, deficient and starved. Pigment and FAME profilings were carried out. Desmodesmus sp. ...
DOI:
10.1016/j.biteb.2020.100409

4. Assessment of ammonium fertilization as a stimulus for proline accumulation in Oryza sativa L. during cyanide assimilation

Author:
Liu, W.; Yu, X.-Z.; Lei, S.-Y.; Yang, L.; Lin, Y.-J.
Source:
International journal of environmental science and technology 2020 v.17 no.5 pp. 2811-2818
ISSN:
1735-1472
Subject:
starvation,   etc   ; Oryza sativa; ammonium; ammonium fertilizers; fertilizer application; nitrogen; potassium cyanide; proline; rice; roots; seedlings; shoots;     Show all 12 Subjects
Abstract:
... The interactions between ammonium fertilization, cyanide (KCN) assimilation and proline accumulation in rice seedlings (Oryza sativa L. cv. XZX 45) were investigated during the current investigation. Results indicated that rice seedlings possess effective assimilation potential for exogenous CN⁻ after 2-d exposure, where increases in the assimilation rates of CN⁻ were negatively correlated with am ...
DOI:
10.1007/s13762-020-02686-0

5. Mitigating stress in industrial yeasts

Author:
Walker, Graeme M.; Basso, Thiago O.
Source:
Fungal biology 2020 v.124 no.5 pp. 387-397
ISSN:
1878-6146
Subject:
starvation,   etc   ; Saccharomyces cerevisiae; beverages; bioethanol; biotic stress; energy; ethanol; ethanol production; fermentation; pH; temperature; toxicity; yeasts;     Show all 13 Subjects
Abstract:
... The yeast, Saccharomyces cerevisiae, is the premier fungal cell factory exploited in industrial biotechnology. In particular, ethanol production by yeast fermentation represents the world’s foremost biotechnological process, with beverage and fuel ethanol contributing significantly to many countries economic and energy sustainability. During industrial fermentation processes, yeast cells are subje ...
DOI:
10.1016/j.funbio.2019.10.010

6. Sedimentology of a transgressive middle-upper Miocene succession filling a tectonically confined, current dominated seaway (the Logudoro Basin, northern Sardinia, Italy)

Author:
Telesca, Donatella; Longhitano, Sergio G.; Pistis, Marco; Pascucci, Vincenzo; Tropeano, Marcello; Sabato, Luisa
Source:
Sedimentary geology 2020 v.400 pp. 105626
ISSN:
0037-0738
Subject:
starvation,   etc   ; Miocene epoch; basins; dunes; geophysics; monitoring; palaeogeography; sand; sandstone; Italy; Sardinia;     Show all 11 Subjects
Abstract:
... The sedimentary dynamics of modern current dominated seaways are well known, based on the monitoring of movement of large sand bodies over short time-scales and the geophysical reconstruction of millennial time-scale processes from recent subsurface successions. Analogues from the ancient record are less common and the longer-term (geological time-scale) sedimentary dynamics of such systems is sti ...
DOI:
10.1016/j.sedgeo.2020.105626

7. Derepression of bkd by the FadR loss dictates elevated production of BCFAs and isoleucine starvation

Author:
Sun, Yijuan; Meng, Qiu; Zhang, Yongting; Gao, Haichun
Source:
Biochimica et biophysica acta 2020 v.1865 no.2 pp. 158577
ISSN:
1388-1981
Subject:
starvation,   etc   ; Shewanella oneidensis; bacteria; biosynthesis; isoleucine; microbial physiology; mutants; operon; phenotype; regulon; transcription factors;     Show all 11 Subjects
Abstract:
... In many γ-proteobacteria, FadR is recognized as a global transcriptional regulator: in addition to being the most prominent regulator for FA biosynthesis and degradation, the protein also mediates expression of many genes in diverse biological processes. In Shewanella oneidensis, a bacterium renowned for its respiratory versatility, FadR directly controls only a few genes. However, the FadR loss s ...
DOI:
10.1016/j.bbalip.2019.158577

8. A unique Lower Paleocene shelf-sea chalk in the eastern U.S. Gulf coastal plain (Clayton Formation, western Alabama): Implications for depositional environment, sea-level dynamics and paleogeography

Author:
Savrda, Charles E.; Foster, Carleton; Fluegeman, Richard
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2020 v.538 pp. 109439
ISSN:
0031-0182
Subject:
starvation,   etc   ; Cretaceous period; Danian age; carbonates; chalk; coastal plains; palaeogeography; sea level; sediments; Alabama; Mississippi;     Show all 11 Subjects
Abstract:
... The deposition of carbonate oozes in shelf-sea settings so prevalent during the Cretaceous generally ceased by the onset of the Paleogene in response to sea-level fall. However, the Lower Paleocene (Danian) Clayton Formation exposed at Moscow Landing in western Alabama, U.S.A., contains a thin chalk bed—the Clayton chalk—that records a later, final phase of shelf-sea carbonate ooze deposition in t ...
DOI:
10.1016/j.palaeo.2019.109439

9. History of the Selective Autophagy Research: How Did It Begin and Where Does It Stand Today?

Author:
Kirkin, Vladimir
Source:
Journal of molecular biology 2020 v.432 no.1 pp. 3-27
ISSN:
0022-2836
Subject:
starvation,   etc   ; autophagy; bacteria; homeostasis; lipids; medicine; mitochondria; models; protein folding; receptors; ubiquitin; yeasts;     Show all 12 Subjects
Abstract:
... Autophagy, self-eating, is a pivotal catabolic mechanism that ensures homeostasis and survival of the cell in the face of stressors as different as starvation, infection, or protein misfolding. The importance of the research in this field was recognized by the general public after the Nobel Prize for Physiology or Medicine was awarded in 2016 to Yoshinori Ohsumi for discoveries of the mechanisms o ...
DOI:
10.1016/j.jmb.2019.05.010
PubMed:
31082435
PubMed Central:
PMC6971693

10. Adjustment of fuel loads in stingless bees (Melipona subnitida)

Author:
Harano, Ken-ichi; Maia-Silva, Camila; Hrncir, Michael
Source:
Journal of comparative physiology 2020 v.206 no.1 pp. 85-94
ISSN:
0340-7594
Subject:
starvation,   etc   ; Melipona; clay; flight; foraging; fuel loading; nectar; nests; pollen; resins; risk; stingless bees;     Show all 12 Subjects
Abstract:
... Eusocial bee foragers leave their nest with nectar as flight fuel, therewith reducing the risk of starvation during a foraging trip. Yet, the extra mass results in an increase of energetic expenditure for flight. Thus, bees should tune their fuel loads to the respective foraging situation. In the present study, we investigated the fuel adjustment in the Brazilian stingless bee Melipona subnitida ( ...
DOI:
10.1007/s00359-019-01398-2

11. Contributions of diet quality and diapause duration to the termination of larval diapause in khapra beetle, Trogoderma granarium (Coleoptera: Dermestidae)

Author:
Shivananjappa, S.; Fields, P.; Laird, R.A.; Floate, K.D.
Source:
Journal of stored products research 2020 v.85 pp. 101535
ISSN:
0022-474X
Subject:
starvation,   etc   ; Trogoderma granarium; diapause; diet; insect larvae; insecticides; mortality; nutrients; nutritional adequacy; pests; pupation; temperature;     Show all 12 Subjects
Abstract:
... Larvae of khapra beetle, Trogoderma granarium (Coleoptera: Dermestidae) have an unusual diapause during which they may sporadically feed for several years, but not complete development. Diapausing larvae have an enhanced tolerance to starvation, insecticides and extreme temperatures. Thus, knowledge of factors that terminate larval diapause may aid in the control of this pest. In the current study ...
DOI:
10.1016/j.jspr.2019.101535

12. Functional identification of apple MdMYB2 gene in phosphate-starvation response

Author:
Yang, Yu-Ying; Ren, Yi-Ran; Zheng, Peng-Fei; Qu, Feng-Jia; Song, Lai-Qing; You, Chun-Xiang; Wang, Xiao-Fei; Hao, Yu-Jin
Source:
Journal of plant physiology 2020 v.244 pp. 153089
ISSN:
0176-1617
Subject:
starvation,   etc   ; Arabidopsis; apples; flowering; gene overexpression; genes; gibberellic acid; phosphates; plant growth;     Show all 9 Subjects
Abstract:
... Inorganic phosphate (Pi) starvation severely affects the normal growth and development of plants. Here, a Pi-responsive gene, named MdMYB2 (MDP0000823458), was cloned and functionally identified in apple. Overexpression of MdMYB2 regulated the expression of Pi starvation-induced (PSI) genes and then promoted phosphate assimilation and utilization. The ectopic expression of MdMYB2 in Arabidopsis in ...
DOI:
10.1016/j.jplph.2019.153089

13. Short bZIP homologue of sulfur regulator Met4 from Ogataea parapolymorpha does not depend on DNA‐binding cofactors for activating genes in sulfur starvation

Author:
Yoo, Su Jin; Sohn, Min Jeong; Jeong, Da Min; Kang, Hyun Ah
Source:
Environmental microbiology 2020 v.22 no.1 pp. 310-328
ISSN:
1462-2912
Subject:
starvation,   etc   ; DNA; Ogataea; Saccharomyces cerevisiae; environmental factors; fungal growth; genes; heat tolerance; homeostasis; metabolism; sulfur; yeasts;     Show all 12 Subjects
Abstract:
... The acquisition of sulfur from environment and its assimilation is essential for fungal growth and activities. Here, we describe novel features of the regulatory network of sulfur metabolism in Ogataea parapolymorpha, a thermotolerant methylotrophic yeast with high resistance to harsh environmental conditions. A short bZIP protein (OpMet4p) of O. parapolymorpha, displaying the combined structural ...
DOI:
10.1111/1462-2920.14849

14. Modeling biomass production during progressive nitrogen starvation by North Swedish green microalgae

Author:
Gojkovic, Zivan; Lu, Yi; Ferro, Lorenza; Toffolo, Andrea; Funk, Christiane
Source:
Algal research 2020 v.47 pp. 101835
ISSN:
2211-9264
Subject:
starvation,   etc   ; Desmodesmus; Scenedesmus obliquus; biomass production; carbohydrate content; carbohydrates; mathematical models; microalgae; nitrogen; nitrogen content; proteins; triacylglycerols; Sweden;     Show all 13 Subjects
Abstract:
... Five newly isolated green algal species from Northern Sweden and one culture collection strain were tested for their ability to remove nitrogen and accumulate carbohydrates and neutral lipids (TAGs) under progressive nitrogen starvation. All six microalgal species increased biomass during N starvation, the amount of proteins decreased, and species dependent either TAGs and/or carbohydrates accumul ...
DOI:
10.1016/j.algal.2020.101835

15. The role of temperature, pH and nutrition in process development of the unique oleaginous yeast Metschnikowia pulcherrima

Author:
Abeln, Felix; Chuck, Christopher J
Source:
Journal of chemical technology and biotechnology 2020 v.95 no.4 pp. 1163-1172
ISSN:
0268-2575
Subject:
starvation,   etc   ; Metschnikowia pulcherrima; cell growth; glucose; lipids; oils; pH; polyols; reaction kinetics; secretion; temperature; yeast extract; yeasts;     Show all 13 Subjects
Abstract:
... BACKGROUND: Lipids produced from oleaginous yeasts are a promising alternative to terrestrial oils. Despite promising cellular yields of lipid however, an industrial process remains elusive. One key processing bottleneck is the need to provide nutrient‐rich conditions for cellular growth and then extended nutrient‐depleted conditions for lipid accumulation. Surprisingly, investigations detailing p ...
DOI:
10.1002/jctb.6301

16. Distinct regulation of microbial processes in the immobilization of labile carbon in different soils

Author:
Wang, Xinxin; Zhang, Wei; Zhou, Feng; Liu, Yan; He, Hongbo; Zhang, Xudong
Source:
Soil biology & biochemistry 2020 v.142 pp. 107723
ISSN:
0038-0717
Subject:
starvation,   etc   ; Mollisols; Ultisols; amino sugars; carbon sequestration; glucose; isotope labeling; labile carbon; microbial growth; mortality; phospholipid fatty acids; stable isotopes;     Show all 12 Subjects
Abstract:
... A process-based understanding of soil carbon (C) sequestration and stabilization has not been precisely characterized due to the lacking of linkage between microbial proliferation and mortality. In this study, stable isotope probing of phospholipid fatty acids and amino sugars were used to determine the microbial responses and microbial residue retention in two soils (Mollisol and Ultisol) with ¹³ ...
DOI:
10.1016/j.soilbio.2020.107723

17. Larval newts adjust foraging rate to perceived predator and competitor proximity

Author:
Zamora-Camacho, Francisco Javier; Aragón, Pedro
Source:
Aquatic ecology 2020 v.54 no.1 pp. 271-280
ISSN:
1386-2588
Subject:
starvation,   etc   ; ad libitum feeding; animal competition; foraging; larvae; metamorphosis; predator-prey relationships; predators; risk; salamanders and newts;     Show all 10 Subjects
Abstract:
... Foraging is key for most animals, because their energy and matter income depend on food ingestion. However, animals may respond adaptively to perceived competitor and/or predator proximity by modifying their foraging rates. Increased foraging activity is expected to improve the chances of succeeding in competition. However, the benefits of increased foraging activity could be offset by the risks o ...
DOI:
10.1007/s10452-019-09741-0

18. Vitamin C treatment of embryos, but not donor cells, improves the cloned embryonic development in sheep

Author:
Zhang, Yumei; Gao, Enen; Guan, Hong; Wang, Qianqian; Zhang, Shuo; Liu, Kexiong; Yan, Fengxiang; Tian, Hao; Shan, Dehai; Xu, Huijuan; Hou, Jian
Source:
Reproduction in domestic animals 2020 v.55 no.3 pp. 255-265
ISSN:
0936-6768
Subject:
starvation,   etc   ; DNA methylation; antioxidants; ascorbic acid; blastocyst; blood serum; embryogenesis; epigenetics; fibroblasts; oxidation; oxygenases; sheep; somatic cells;     Show all 13 Subjects
Abstract:
... Vitamin C is not only an antioxidant but also a regulator of epigenetic modifications that can enhance the activity of the ten‐eleven translocation (TET) family dioxygenases and promote the oxidation of 5‐methylcytosine (5mC) to 5‐hydroxymethylcytosine (5hmC). Here, we investigated the effects of vitamin C in regulating DNA methylation in sheep somatic cells or embryos in an effort to improve the ...
DOI:
10.1111/rda.13606

19. Ratiometric fluorescent probes based on through-bond energy transfer of cyanine donors to near-infrared hemicyanine acceptors for mitochondrial pH detection and monitoring of mitophagy

Author:
Xia, Shuai; Wang, Jianbo; Zhang, Yibin; Whisman, Nick; Bi, Jianheng; Steenwinkel, Tessa E.; Wan, Shulin; Medford, Jerry; Tajiri, Momoko; Luck, Rudy L.; Werner, Thomas; Liu, Haiying
Source:
Journal of materials chemistry B 2020 v.8 no.8 pp. 1603-1615
ISSN:
2050-7518
Subject:
starvation,   etc   ; biphenyl; cytotoxicity; drug therapy; energy transfer; fluorescence; fluorescent dyes; metal ions; mitochondria; mitophagy; monitoring; pH; photostability;     Show all 13 Subjects
Abstract:
... Two ratiometric near-infrared fluorescent probes have been developed to selectively detect mitochondrial pH changes based on highly efficient through-bond energy transfer (TBET) from cyanine donors to near-infrared hemicyanine acceptors. The probes consist of identical cyanine donors connected to different hemicyanine acceptors with a spirolactam ring structure linked via a biphenyl linkage. At ne ...
DOI:
10.1039/c9tb02302j
PubMed:
32055810
PubMed Central:
PMC7058096

20. Curcumin-induced cell death depends on the level of autophagic flux in A172 and U87MG human glioblastoma cells

Author:
Lee, Jong-Eun; Yoon, Sung Sik; Lee, Jae-Wook; Moon, Eun-Yi
Source:
Chinese journal of natural medicines 2020 v.18 no.2 pp. 114-122
ISSN:
1875-5364
Subject:
starvation,   etc   ; Oriental traditional medicine; apoptosis; autophagy; blood serum; curcumin; eukaryotic cells; glioblastoma; human diseases; neoplasm cells; survival rate; therapeutics;     Show all 12 Subjects
Abstract:
... Glioblastoma is the deadliest neoplasm with the worst 5-year survival rate among all human cancers. Autophagy promotes autophagic cell death or blocks the induction of apoptosis in eukaryotic cells. Here, we investigated whether varying levels of autophagic flux in glioblastoma lead to different efficacies of curcumin treatment using U87MG and A172 human glioblastoma cells. The number of LC3 punct ...
DOI:
10.1016/S1875-5364(20)30012-1