Contributions to the biochemical taxonomy of the genus Chlorella Beijerinck s. l. - pigment composition II. Biochemotaxonomical differences in pigment composition of the strains growing under nitrogen deficient nutritional conditions

1997 ◽  
Vol 87 ◽  
pp. 109-136
Author(s):  
Bohdan Škoda
Keyword(s):  
Pigment Composition ◽  
Biochemical Taxonomy ◽  
Nutritional Conditions

Depth-induced adjustment of fatty acid and pigment composition suggests high biochemical plasticity in the tropical seagrass Halophila stipulacea

2019 ◽  
Vol 608 ◽  
pp. 105-117 ◽  
Author(s):  
P Beca-Carretero ◽  
F Guihéneuf ◽  
G Winters ◽  
DB Stengel
Keyword(s):  
Fatty Acid ◽  
Pigment Composition ◽  
Halophila Stipulacea

The effect of carboanhydrase inhibitors on the growth and pigment composition of some Cyanophyta

2002 ◽  
Vol 4 (3) ◽  
pp. 55-64
Author(s):  
Svetlana I. Los' ◽  
A. F. Tereshchenko ◽  
R. N. Fomishina ◽  
E. F. Dovbysh ◽  
E. K. Zolotareva
Keyword(s):  
Pigment Composition

scholarly journals Polymer-protomer transition of acetyl-CoA carboxylase occurs in vivo and varies with nutritional conditions.

1980 ◽  
Vol 255 (21) ◽  
pp. 10033-10035
Author(s):  
B.A. Ashcraft ◽  
W.S. Fillers ◽  
S.L. Augustine ◽  
S.D. Clarke
Keyword(s):  
Acetyl Coa Carboxylase ◽  
Acetyl Coa ◽  
Nutritional Conditions

scholarly journals CD25890, a conserved protein that modulates sporulation initiation in Clostridioides difficile

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Diogo Martins ◽  
Michael A. DiCandia ◽  
Aristides L. Mendes ◽  
Daniela Wetzel ◽  
Shonna M. McBride ◽  
...  
Keyword(s):  
Life Cycle ◽  
Biofilm Formation ◽  
Regulatory Protein ◽  
Well Being ◽  
Human Intestine ◽  
Healthy Humans ◽  
Clostridioides Difficile ◽  
Nutritional Conditions ◽  
Sporulation Initiation

AbstractBacteria that reside in the gastrointestinal tract of healthy humans are essential for our health, sustenance and well-being. About 50–60% of those bacteria have the ability to produce resilient spores that are important for the life cycle in the gut and for host-to-host transmission. A genomic signature for sporulation in the human intestine was recently described, which spans both commensals and pathogens such as Clostridioides difficile and contains several genes of unknown function. We report on the characterization of a signature gene, CD25890, which, as we show is involved in the control of sporulation initiation in C. difficile under certain nutritional conditions. Spo0A is the main regulatory protein controlling entry into sporulation and we show that an in-frame deletion of CD25890 results in increased expression of spo0A per cell and increased sporulation. The effect of CD25890 on spo0A is likely indirect and mediated through repression of the sinRR´ operon. Deletion of the CD25890 gene, however, does not alter the expression of the genes coding for the cytotoxins or the genes involved in biofilm formation. Our results suggest that CD25890 acts to modulate sporulation in response to the nutrients present in the environment.

scholarly journals Bone Marrow Adipocytes—Role in Physiology and Various Nutritional Conditions in Human and Animal Models

Nutrients ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 1412
Author(s):  
Katarzyna Piotrowska ◽  
Maciej Tarnowski
Keyword(s):  
Bone Marrow ◽  
Adipose Tissue ◽  
Anorexia Nervosa ◽  
Animal Models ◽  
Diabetes Mellitus Type 1 ◽  
Medullary Canal ◽  
Dietary Interventions ◽  
Nutritional Conditions ◽  
Heterogeneous Tissue

In recent years, adipose tissue has attracted a lot of attention. It is not only an energy reservoir but also plays important immune, paracrine and endocrine roles. BMAT (bone marrow adipose tissue) is a heterogeneous tissue, found mostly in the medullary canal of the long bones (tibia, femur and humerus), in the vertebrae and iliac crest. Adipogenesis in bone marrow cavities is a consequence of ageing or may accompany pathologies like diabetes mellitus type 1 (T1DM), T2DM, anorexia nervosa, oestrogen and growth hormone deficiencies or impaired haematopoiesis and osteoporosis. This paper focuses on studies concerning BMAT and its physiology in dietary interventions, like obesity in humans and high fat diet in rodent studies; and opposite: anorexia nervosa and calorie restriction in animal models.

scholarly journals Divergent Adaptation Strategies of Vascular Facultative Epiphytes to Bark and Soil Habitats: Insights from Stoichiometry

Forests ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 16
Author(s):  
Tingting Zhang ◽  
Wenyao Liu ◽  
Tao Hu ◽  
Dandan Tang ◽  
Yuxuan Mo ◽  
...  
Keyword(s):  
Elemental Composition ◽  
Forest Ecosystems ◽  
Adaptation Strategies ◽  
P Elements ◽  
Nutritional Conditions ◽  
Variable Element ◽  
C:P Ratios ◽  
Strong Control ◽  
Forest Habitats ◽  
Cultivation Experiment

Understanding the stoichiometric traits of plants is critical for studying their ecological adaptation strategies. Facultative epiphytes (which can also live on the ground) are an important component of epiphytic flora of montane forest ecosystems. However, a key gap persists in our understanding how facultative epiphytes can adapt different nutritional conditions of ground and canopy habitats? To study adaptive strategies of facultative epiphytes and the characteristics of the content and stoichiometric homeostasis of C, N, and P elements, we conducted a field experiment and a greenhouse N and P additions cultivation experiment. We found that epiphytic individuals of facultative epiphytes showed lower C:N and C:P ratios, higher variation in elemental composition, and more pronounced N limitation than terrestrial individuals. Moreover, facultative epiphytes showed strong control over the elemental composition of leaves, and their stoichiometric homeostasis of leaves and stems were stronger than roots. Furthermore, the homeostasis of facultative epiphytes decreased in the order N > P. Our results indicated that epiphytic and terrestrial individuals of facultative epiphytes have difference in nutrient limitation, and they use plastic strategies in different habitats. Epiphytic individuals survive in the intermittent habitat through luxury consumption of nutrient while terrestrial individuals were relatively conservative nutrient users. Furthermore, our results implied that facultative epiphytes maintain stable metabolic leaf activity via variable element concentrations of roots to adapt to highly heterogeneous forest habitats.

scholarly journals Haemolymph pigment composition as a chemometric indicator of phase in the desert locust, Schistocerca gregaria

1997 ◽  
Vol 17 (02) ◽  
pp. 199-204 ◽  
Author(s):  
Hassane Mahamat ◽  
Ahmed Hassanali ◽  
David Munyinyi
Keyword(s):  
Schistocerca Gregaria ◽  
Desert Locust ◽  
Pigment Composition

Treatment of Dysphagia Improves Nutritional Conditions in Stroke Patients

Dysphagia ◽  
1999 ◽  
Vol 14 (2) ◽  
pp. 61-66 ◽  
Author(s):  
Sölve Elmståhl ◽  
Margareta Bülow ◽  
Olle Ekberg ◽  
Marie Petersson ◽  
Hans Tegner
Keyword(s):  
Stroke Patients ◽  
Nutritional Conditions

Relevance of Biochemical Taxonomy to the Problem of Lathyrism

Nature ◽  
1964 ◽  
Vol 203 (4943) ◽  
pp. 378-380 ◽  
Author(s):  
E. A. BELL
Keyword(s):  
Biochemical Taxonomy
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