Influence of Chromosome Translocation on Yeast Life Span: Implications for Long-Term Industrial Biofermentation

2015 ◽  
pp. 25-56
Keyword(s):  
Life Span ◽  
Chromosome Translocation

scholarly journals Seed germination evaluation of Phalaenopsis amabilis in various media for long-term conservation

2021 ◽  
Vol 22 (11) ◽  
Author(s):  
DWI MURTI PUSPITANINGTYAS ◽  
ELIZABETH HANDINI
Keyword(s):  
Regression Analysis ◽  
Seed Germination ◽  
Life Span ◽  
Seed Storage ◽  
Optimum Conditions ◽  
Presidential Decree ◽  
Orchid Seed ◽  
Leaf Fertilizer

Abstract. Puspitaningtyas DM, Handini E. 2021. Seed germination evaluation of Phalaenopsis amabilis in various media for long-term conservation. Biodiversitas 22: 5231-5238. Phalaenopsis amabilis (L.) Blume (moon orchid) is one of Indonesia's national flowers, which is mentioned in Presidential Decree No. 4/1993. Study on the orchid seed of P. amabilis was conducted to observe the longevity of seeds storage. The purpose of this study was to determine the viability of P. amabilis seeds after storage for years, then to predict the life span of the seeds, and to find out the best media germination for P. amabilis seeds. After harvesting, P. amabilis seeds were stored at –20 °C and the germination tests were carried out periodically in different periods until the seeds lose their viability to determine the optimum conditions for long-term seed storage. Four trial media cultures have been used to test seed germination by means of in vitro culture. The result showed that seeds of P. amabilis were able to germinate in 4 media i.e. Knudson C, modified Knudson C, modified Vacin & Went and modified leaf fertilizer. The best germination was on leaf fertilizer medium. Based on the research showed that the viability seeds of P. amabilis decreased sharply after 6 years stored. By using regression analysis, the life span of the seeds could be predicted can reach 9 years of storage which is sowing on the best media (leaf fertilizer).

Environmental Enrichment Improves Age-Related Immune System Impairment: Long-Term Exposure Since Adulthood Increases Life Span in Mice

2010 ◽  
Vol 13 (4) ◽  
pp. 415-428 ◽  
Author(s):  
Lorena Arranz ◽  
Nuria M. De Castro ◽  
Isabel Baeza ◽  
Ianire Maté ◽  
Maria Paz Viveros ◽  
...  
Keyword(s):  
Immune System ◽  
Life Span ◽  
Environmental Enrichment ◽  
Age Related

scholarly journals Systemic long‐term inactivation of hypoxia‐inducible factor prolyl 4‐hydroxylase 2 ameliorates aging‐induced changes in mice without affecting their life span

2020 ◽  
Vol 34 (4) ◽  
pp. 5590-5609 ◽  
Author(s):  
Anna Laitakari ◽  
Riikka Huttunen ◽  
Paula Kuvaja ◽  
Pauliina Hannuksela ◽  
Zoltan Szabo ◽  
...  
Keyword(s):  
Life Span ◽  
Hypoxia Inducible Factor ◽  
Induced Changes

scholarly journals Long-Term Mixed Cultures of Human Hemic Cells, with Granulocytic, Lymphocytic, Plasmocytic and Erythrocytic Series Represented

Blood ◽  
1959 ◽  
Vol 14 (7) ◽  
pp. 803-815 ◽  
Author(s):  
JOHN H. BROOKE ◽  
EDWIN E. OSGOOD
Keyword(s):  
Population Density ◽  
Life Span ◽  
Cell Types ◽  
Mixed Cultures ◽  
High Population Density ◽  
Cell Type ◽  
High Gradient ◽  
Long Term Culture ◽  
Cell Series

Abstract New culture strains containing humman hemic cells of monocytic, lymphocytic, granulocytic, plasmocytic and erythrocytic series are described with suggestions as to maintenance of the desired cell series in culture. The addition of cells from lymphocytic, plasmocytic and erythrocytic series to a previously well established culture has made possible long-term culture of these cell types, since this procedure aids in maintaining the necessary high gradient factor for their growth and multiplication. Although the life span of these cells has been considerably shortened in culture and immature forms predominate, the cells show recognizable characteristics of the cell series of origin. A high population density must be maintained in cultivation of the mixed cultures or the desired cell type may be lost.

scholarly journals Diet and Aging

2012 ◽  
Vol 2012 ◽  
pp. 1-20 ◽  
Author(s):  
Samo Ribarič
Keyword(s):  
Life Span ◽  
Stress Responses ◽  
Food Supplement ◽  
Calorie Intake ◽  
Age Related ◽  
Regulate Cell Growth ◽  
Posttranslational Histone Modifications ◽  
The Individual ◽  
Growth And Aging

Nutrition has important long-term consequences for health that are not only limited to the individual but can be passed on to the next generation. It can contribute to the development and progression of chronic diseases thus effecting life span. Caloric restriction (CR) can extend the average and maximum life span and delay the onset of age-associated changes in many organisms. CR elicits coordinated and adaptive stress responses at the cellular and whole-organism level by modulating epigenetic mechanisms (e.g., DNA methylation, posttranslational histone modifications), signaling pathways that regulate cell growth and aging (e.g., TOR, AMPK, p53, and FOXO), and cell-to-cell signaling molecules (e.g., adiponectin). The overall effect of these adaptive stress responses is an increased resistance to subsequent stress, thus delaying age-related changes and promoting longevity. In human, CR could delay many diseases associated with aging including cancer, diabetes, atherosclerosis, cardiovascular disease, and neurodegenerative diseases. As an alternative to CR, several CR mimetics have been tested on animals and humans. At present, the most promising alternatives to the use of CR in humans seem to be exercise, alone or in combination with reduced calorie intake, and the use of plant-derived polyphenol resveratrol as a food supplement.

scholarly journals Long‐Term Entecavir Treatment Results in Sustained Antiviral Efficacy and Prolonged Life Span in the Woodchuck Model of Chronic Hepatitis Infection

2001 ◽  
Vol 184 (10) ◽  
pp. 1236-1245 ◽  
Author(s):  
Richard J. Colonno ◽  
Eugene V. Genovesi ◽  
Ivette Medina ◽  
Lucinda Lamb ◽  
Stephen K. Durham ◽  
...  
Keyword(s):  
Chronic Hepatitis ◽  
Life Span ◽  
Treatment Results ◽  
Antiviral Efficacy ◽  
Hepatitis Infection ◽  
Woodchuck Model

Demography and life cycle of Antarctic krill, Euphausia superba, in the Indian sector of the Southern Ocean: long-term comparison between coastal and open-ocean regions

2000 ◽  
Vol 57 (S3) ◽  
pp. 68-90 ◽  
Author(s):  
E A Pakhomov
Keyword(s):  
Southern Ocean ◽  
Life Span ◽  
Antarctic Krill ◽  
Age Groups ◽  
Substantial Reduction ◽  
Euphausia Superba ◽  
Age Composition ◽  
Indian Sector ◽  
Antarctic Krill Euphausia Superba

Size/age composition and reproductive status of Antarctic krill, Euphausia superba, in the central part of the Indian sector of the Southern Ocean, e.g., the Cooperation Sea (Prydz Bay region) and the Cosmonaut Sea, during austral summers 1977-1990 were summarized to estimate growth rates, longevity, reproduction, recruitment, life span, and mortality rates. The life span of Antarctic krill exceeds 5 years in both the Cosmonaut and Cooperation seas. The age composition of the southern and northern groupings differs markedly, with substantial reduction in numbers of early age groups in the northern grouping. Long-term observations of spawning success, recruitment, and age composition suggest that a self-sustained grouping of krill persists in the Cooperation Sea south of the Antarctic Divergence. However, periodic gene flow via recruits from surrounding regions most probably accounts for the lack of spatial genetic differences between the Cooperation Sea and adjacent areas, thus preventing the establishment of an isolated subpopulation in the region investigated. The major factor responsible for the substantial interannual variability in krill dynamics appears to be macroscale oceanographic and atmospheric circulations, which determine a level of environmental isolation of the Cooperation Sea from adjacent waters.

Early Life Stress: Long-Term Physiological Impact in Rodents and Primates

Physiology ◽  
2002 ◽  
Vol 17 (4) ◽  
pp. 150-155 ◽  
Author(s):  
Christopher R. Pryce ◽  
Daniela Rüedi-Bettschen ◽  
Andrea C. Dettling ◽  
Joram Feldon
Keyword(s):  
Life Span ◽  
Stress Responses ◽  
Life Stress ◽  
Early Life ◽  
Early Life Stress ◽  
Human Infants ◽  
Hypothalamic Pituitary Adrenal ◽  
Physiological Impact ◽  
Pituitary Adrenal Axis

Rat, monkey, and human infants have evolved to expect certain patterns of care. Spontaneous or experimental deviations of care from the norm result in infant stress responses. Hyperactivity of immature stress systems such as the limbic-hypothalamic-pituitary-adrenal axis and the limbic-sympatho-adrenomedullary axis can alter their subsequent reactivity across the life span.

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