Competition between Eucalyptus melliodora and E. rossii at varying levels of exchangeable calcium

1961 ◽  
Vol 9 (1) ◽  
pp. 92 ◽  
Author(s):  
cWE Moore
Keyword(s):  
Plant Growth ◽  
Absolute Amount ◽  
Competing Species ◽  
Natural Distribution ◽  
Exchangeable Calcium ◽  
The Absolute ◽  
Log Ratio ◽  
Pot Culture

E. rossii and E. melliodora were grown in pot culture as competing species at varying levels of exchangeable calcium. Both height and yield of E. melliodora increased with increasing exchangeable calcium. Regressions of log ratio E. rossii / E. melliodora for both height and yield on exchangeable calcium were highly significant (P < 0.001) and there was no evidence of departure from linearity. The data indicate that plant growth is influenced by the degree of calcium saturation of the soil rather than by the absolute amount of exchangeable calcium. The implications of the results in relation to the natural distribution of the two species are discussed.

Stochastic pumping of non-equilibrium steady-states: how molecules adapt to a fluctuating environment

2018 ◽  
Vol 54 (5) ◽  
pp. 427-444 ◽  
Author(s):  
R. D. Astumian
Keyword(s):  
Steady States ◽  
Absolute Amount ◽  
Fluctuating Environment ◽  
The Absolute ◽  
Non Equilibrium

Fluctuations favour state B = (B,B′) based on kinetic asymmetry combined with moderate dissipation rather than state A = (A,A′) in which the absolute amount of dissipation is greater but where there is no kinetic asymmetry.

scholarly journals Quantitative manganese dissolution investigation in lithium-ion batteries by means of X-ray spectrometry techniques

2021 ◽  
Author(s):  
Claudia Zech ◽  
Marco Evertz ◽  
Markus Börner ◽  
Yves Kayser ◽  
Philipp Hönicke ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Fluorescence Analysis ◽  
Absolute Amount ◽  
X Ray ◽  
Manganese Deposition ◽  
The Absolute ◽  
Manganese Species

The manganese deposition of an aged anode has been investigated with K-edge and L-edge NEXAFS to determine the manganese species. In addition, the absolute amount of manganese could be revealed with reference-free X-ray fluorescence analysis.

Orchidaceous rhizoctonias from roots of nonorchids: mycelial and cultural characteristics of field and pot culture isolates

1987 ◽  
Vol 65 (3) ◽  
pp. 598-606 ◽  
Author(s):  
M. J. Milligan ◽  
P. G. Williams
Keyword(s):  
Light Microscope ◽  
Cultural Characteristics ◽  
Natural Distribution ◽  
Rate Of Growth ◽  
Vesicular Arbuscular ◽  
Complex Carbohydrates ◽  
Synthetic Media ◽  
Septal Pores ◽  
Pot Culture ◽  
Growth Shape

This paper reports the field isolation of orchidaceous rhizoctonias similar to those found recently in pot cultures of vesicular–arbuscular endophytes. The paper describes the morphology and growth of field and pot-culture isolates on different natural and synthetic media and reports light microscope observations on the nuclei and septal pores of hyphal cells. All isolates were the same in regard to the utilisation of simple and complex carbohydrates and different forms of nitrogen. They were all multinucleate and had an inconspicuous septal pore. Consistent differences were found among isolates in the morphology and frequency of chlamydospores and monilioid hyphae and in the rate of growth, shape, type of margin, and colour of colonies. By using these criteria, the fungi were segregated into 10 entities. The observations are discussed in relation to the natural distribution of the fungi and their resemblance to other fungi in the form-genus Rhizoctonia.

To hematology of scurvy

1904 ◽  
Vol 4 (1-2) ◽  
pp. 104-105
Author(s):  
M Beloglazov
Keyword(s):  
Red Blood Cells ◽  
Blood Cells ◽  
Gradual Increase ◽  
Absolute Amount ◽  
The Absolute

11 people of scurvy patients of various ages (from 14 to 52 years old) were investigated by the author from the side of blood changes. The main results of the study are as follows: i) The absolute amount of hemoglobin in all the cases studied is reduced; the gradual increase during recovery does not reach the norm even when the number of red blood cells becomes normal.

scholarly journals Prospective Zinc Solubilising Bacteria for Enhanced Nutrient Uptake and Growth Promotion in Maize (Zea maysL.)

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Praveen Kumar Goteti ◽  
Leo Daniel Amalraj Emmanuel ◽  
Suseelendra Desai ◽  
Mir Hassan Ahmed Shaik
Keyword(s):  
Plant Growth ◽  
Solid Medium ◽  
Growth Promotion ◽  
Dry Mass ◽  
Short Term ◽  
Culture Experiment ◽  
Zinc Supplement ◽  
Seed Bacterization ◽  
Significant Release ◽  
Pot Culture

Zinc (Zn) is one of the essential micronutrients required for optimum plant growth. Substantial quantity of applied inorganic zinc in soil is converted into unavailable form. Zinc solubilising bacteria are potential alternates for zinc supplement. Among 10 strains screened for Zn solubilisation, P29, P33, and B40 produced 22.0 mm clear haloes on solid medium amended with ZnCO3. Similarly, P17 and B40 showed 31.0 mm zone in ZnO incorporated medium. P29 and B40 showed significant release of Zn in broth amended with ZnCO3(17 and 16.8 ppm) and ZnO (18 and 17 ppm), respectively. The pH of the broth was almost acidic in all the cases ranging from 3.9 to 6.1 in ZnCO3and from 4.1 to 6.4 in ZnO added medium. Short term pot culture experiment with maize revealed that seed bacterization with P29 @ 10 g·kg−1significantly enhanced total dry mass (12.96 g) and uptake of N (2.268%), K (2.0%), Mn (60 ppm), and Zn (278.8 ppm).

The Energy-Sources in Ontogenesis

1926 ◽  
Vol 4 (2) ◽  
pp. 145-154
Author(s):  
JOSEPH NEEDHAM
Keyword(s):  
Uric Acid ◽  
Energy Sources ◽  
Absolute Amount ◽  
Ammonia Content ◽  
Hen’S Egg ◽  
Urea Production ◽  
The Absolute ◽  
Production Of Ammonia

1. Investigation of the ammonia content of the developing hen's egg shows that though in absolute amount it steadily increases during incubation, in percentage of the embryonic weight it declines. 2. The intensity of production of ammonia reaches its highest point on the fourth day, i.e. five days before that of urea production, and seven days before that of the production of uric acid. 3. The absolute amounts of nitrogen excreted in the form of ammonia are so small, however, that the curve for protein combusted by 100 gm. of embryo each day is hardly affected, and rises to a peak between the eighth and ninth days. 4. These results are compared with others already in the literature of chemical embryology, which seem to bear on the theory of recapitulation. They afford further support to the conception of an ontogenetic succession of energy-sources.

scholarly journals Bacillus pumilus increases boron uptake and inhibits rapeseed growth under boron supply irrespective of phosphorus fertilization

AoB Plants ◽  
2019 ◽  
Vol 11 (4) ◽  
Author(s):  
Sajid Masood ◽  
Xue Qiang Zhao ◽  
Ren Fang Shen
Keyword(s):  
Brassica Napus ◽  
Plant Growth ◽  
Bacillus Pumilus ◽  
Phosphorus Fertilization ◽  
Plant Growth Promoting Bacteria ◽  
Boron Uptake ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
B Uptake ◽  
Pot Culture

AbstractThe present study was carried out to investigate how plant growth-promoting bacteria (PGPB) influence plant growth and uptake of boron (B) and phosphorus (P) in rapeseed (Brassica napus). Rapeseed was subjected to control, B, P and B + P treatments, either with or without B. pumilus (PGPB) inoculation, and grown in pot culture for 6 weeks. In the absence of B. pumilus, the addition of B, P or both elements improved the growth of rapeseed compared with the control. Interestingly, B. pumilus inoculation inhibited plant growth and enhanced B uptake under B and B + P but not under control and P conditions. In addition, B. pumilus inoculation decreased the pH of soil under B and B + P supplies. Bacillus pumilus inoculation thus increased rapeseed B uptake and inhibited growth under B supply, which suggests that the effects of PGPB on rapeseed growth depend on the addition of B to soil. Bacillus pumilus inoculation may therefore be recommended for the enhancement of rapeseed B levels in B-deficient soils but not in B-sufficient ones.

P686 Expression of CD39 ectonucleotidase on regulatory T cells and on T helper 17 cells in children with IBD receiving anti-TNF therapy

2020 ◽  
Vol 14 (Supplement_1) ◽  
pp. S558-S559
Author(s):  
S V Petrichuk ◽  
Т Radygina ◽  
A Illarionov ◽  
D Kuptsova ◽  
A Potapov ◽  
...  
Keyword(s):  
Roc Analysis ◽  
Inflammatory Activity ◽  
Absolute Amount ◽  
Sustained Remission ◽  
T Helper 17 ◽  
Regulatory T Lymphocytes ◽  
Th17 Lymphocytes ◽  
The Absolute ◽  
Group 2 ◽  
Group 1

Abstract Background CD39, CD73 ectonucleotidases convert extracellular ATP (eATF) to adenosine. eATF is known to have pro-inflammatory activity, and adenosine has anti-inflammatory activity. It was shown decreasement CD39 expression on regulatory T lymphocytes (Treg) during exacerbation in adult patients with IBD. The aim of this study was to evaluate the expression of CD39 on Treg and Th17 lymphocytes (Th17) in children with inflammatory bowel diseases (IBD) with different responses to anti-TNF therapy. Methods The study included 68 children with IBD (CD 35 patients, UC 33 patients) aged 4–18 years with duration of the disease from 6 months till 15 years. All patients were treated with anti-TNF (infliximab, adalimumab) during 11–86 weeks. Clinical response was evaluated according to PUCAI (UC) and PCDAI (CD) scores. Group 1 (n = 35) included patients with exacerbation during anti-TNF therapy, in Group 2 (n = 25) patients with sustained remission. The expression of CD39 on Treg (CD3CD4CD25CD127low) and Th17 cells (CD3CD4CD161) was determined by flow cytometry (NovoCyte Acea Biosciences, Inc.). Statistical analysis was performed using nonparametric Mann–Whitney test and ROC analysis (SPSS Statistics 20). Results It were observed inflammatory activity increasement according to PUCAI (Med 40 [30–65], p = 0.8 × 10–5) and PCDIA scores (Med 28.8 [15–55], p = 1.2 × 10–5) in Group 1 in comparison with Group 2. The amount of Treg expressing CD39 (Treg CD39) was 6–58% from Treg (6–80 cl/μl), and the amount of Th17 with the CD39 marker (Th17CD39) was 0.5–57% (2–49 cl/μl). A direct correlation was revealed between TregCD39 and Th17CD39 (r=0.55 p = 1 × 10–6). It was shown that the number of TregCD39 and Th17CD39 does not depend on the age of the child. However, with an increase in the duration of the disease, a decrease in the absolute amount of Th17CD39 is observed (r = −0.3, p = 0.016). In patients Group 1 there was a significant reduction of CD39 expression on Treg (p = 0.00002) and on Th17 (p = 0.0009) compared with a Group 2 in both diseases. The dependence of TregCD39 on PUCAI (r = −0.5 p = 0.013) and PCDAI (r = −0.43 p = 0.03) was revealed. ROC analysis showed that the cut-off level for groups 1 and 2 is 31.7% for TregCD39 (AUC=0.77; Se 69%, Sp 68%) and 37 cl/μl (AUC=0.907; Se 88%, Sp 88%). Cut-off level for the absolute amount of Th17CD39 was 21 cl/μl (AUC=0.888; Se 79%, Sp 81%). Conclusion The decreasement in the amount of TregCD39 below 31 cl/μl and Th17CD39 below 21 cl/μl is associated with an exacerbation of the disease. The expression level of ectonucleotidase CD39 on Treg and Th17 in children with IBD receiving anti-TNF therapy is independent of age and allows to differentiate the state of remission and exacerbation.

scholarly journals Protein turnover of breast muscle in germ-free and conventional chicks

1985 ◽  
Vol 54 (1) ◽  
pp. 131-145 ◽  
Author(s):  
T. Muramatsu ◽  
D. N. Salter ◽  
M. E. Coates
Keyword(s):  
Protein Turnover ◽  
Time Course ◽  
Pectoral Muscle ◽  
Breast Muscle ◽  
Synthesis Rate ◽  
Protein Synthesis Rate ◽  
Absolute Amount ◽  
Gut Microflora ◽  
Isotopic Equilibrium ◽  
The Absolute

1. The effect of the gut microflora on protein turnover in pectoral muscle (M. pectoralis profundus) was studied by means of dietary infusion of L-[UJ-14C]phenylalanine and of massive dose injection of L-[4-3H]phenylalanine in chicks fed on a semi-purified casein—gelatin (SCG) diet until 19 d of age, and in those subsequently given either a nitrogen-free (NF) diet or NF supplemented with methionine and arginine (MA) for a further 9 d.2. Time-course changes in radioactivity released in expired carbon dioxide during the 8 h infusion period showed that isotopic equilibrium was reached in 4 h with the SCG diet and in 5 h with the MA diet. However, with the protein-deprived chicks given the NF diet, isotopic equilibrium was not achieved since radioactivity in CO2 increased linearly throughout.3. On feeding the NF diet, fractional protein synthesis rate and the absolute amount of protein synthesized in chick breast muscle were reduced. These reductions were partially alleviated by supplementing the NF diet with methionine and arginine.4. The fractional degradation rate of breast muscle was increased in chicks given the NF diet, while the absolute amount of protein degraded was decreased. The addition of methionine and arginine counteracted these changes brought about by protein starvation.5. Generally speaking, the presence of the gut microflora had little, if any, effect on protein turnover rate in chick-breast muscle.

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