The Relationship of Cell Size and Cell Number to the Distance of Phloem Initiation in the Root Tip of Groundnuts (Arachis Hypocea L. Var Bukene Red)

1978 ◽  
Vol 44 (1) ◽  
pp. 22-30
Author(s):  
H. Oryem-Origa ◽  
K. M. Salim
Keyword(s):  
Cell Size ◽  
Cell Number ◽  
Root Tip ◽  
Relationship Of ◽  
The Relationship

scholarly journals The Physiology of Growth in Apple Fruits II. Respiratory and Other Metabolic Activities as Functions of Cell Number and Cell Size in Fruit Development

1951 ◽  
Vol 4 (2) ◽  
pp. 92 ◽  
Author(s):  
RN Robertson ◽  
JF Turner
Keyword(s):  
Cell Size ◽  
Fruit Development ◽  
Respiratory Activity ◽  
Chemical Constituents ◽  
Fruit Size ◽  
Cell Number ◽  
Metabolic Activities ◽  
Relationship Of ◽  
The Relationship ◽  
Apple Fruits

The relationship of respiratory activity and quantities of the chemical constituents to fruit size, cell size, and cell number in apple fruits of the variety Granny Smith were examined.

scholarly journals In Vitro Measurements of the Effects of Anticoagulants on the Flow Properties of Blood: The Relationship of these Effects to Red Cell Shrinkage

Blood ◽  
1968 ◽  
Vol 31 (2) ◽  
pp. 234-241 ◽  
Author(s):  
WILLIAM I. ROSENBLUM
Keyword(s):  
Cell Size ◽  
Blood Viscosity ◽  
Plasma Viscosity ◽  
Red Cell ◽  
Flow Properties ◽  
Cell Shrinkage ◽  
In Vitro Measurements ◽  
Relationship Of ◽  
The Relationship

Abstract Citrate and oxalate increased the viscosity of blood as measured in a capillary viscosimeter. The elevated viscosity was accompanied by erytrhocyte shrinkage, manifest by the decreased hematocrit of blood anticoagulated with either of these agents. Plasma viscosity was not affected. EDTA, which does not alter cell size or shape, also failed to alter blood viscosity, while citrate no longer affected viscosity, if utilized in ACD solution, a milieu which prevents cell shrinkage. When erythrocytes were suspended in hypertonic NaCl, "blood" viscosity was also elevated in comparison to that of suspensions in lower concentrations of NaCl. The data indicate that blood viscosity will be elevated by anticoagulants which are permitted to shrink erythrocytes.

scholarly journals Age-related response of IL-4/Luc/CNS-1 transgenic miceto phthalic anhydrideexposure

2016 ◽  
Vol 68 (1) ◽  
pp. 145-154
Author(s):  
Ji Sung ◽  
Ji Kim ◽  
Jun Go ◽  
Eun Koh ◽  
Sung Song ◽  
...  
Keyword(s):  
Allergic Inflammation ◽  
Treated Group ◽  
Cell Number ◽  
Susceptibility To Infection ◽  
Dermal Thickness ◽  
Age Related ◽  
Therapeutic Compounds ◽  
Relationship Of ◽  
The Relationship ◽  
Old Mice

Age-related changes are associated with susceptibility to infection, malignancy, autoimmunity, response to vaccination and wound healing. To investigate the relationship of several pathological phenotypes of allergic inflammationto age, alterations in theIL-4 derived luciferase signal and general phenotype biomarkers were measured in young (2-month-old) and old (12-month-old) IL-4/Luc/CNS-1 transgenic (Tg) mice with phthalic anhydride (PA)-induced allergic inflammationfor 2 weeks. There was no difference in the ear phenotypes and thickness between young and old mice, although these levels were higher in the PA-treated group thantheacetone-olive oil (AOO)-treated group. The luciferase signal was detected in the mesenteric lymph node (ML), thymus and pancreas of both young and old PA-treated mice, but showed a greater increasein old Tg mice (exceptin thethymus). Agreaterincrease inthe epidermal thickness and dermal thickness was measured in old PA-treated mice than young PA-treated mice, while total mast cell number remainedconstant in both groups. Furthermore, the concentration of IgE was greater in young PA-treated mice than in old PA-treated mice,as wasthe expression of VEGF and IL-6. Taken together, theresults of this study showed that an animal?s age is an important factor that must be considered when PA-induced allergic inflammation in IL-4/Luc/CNS-1 Tg mice areinvestigated to screen for allergens and therapeutic compounds.

scholarly journals Oxygen Consumption and Cell Size. A Comparison of the Rate of Oxygen Consumption of Diploid and Triploid Prepupae of Drosophila Melanogaster Meigen

1953 ◽  
Vol 30 (4) ◽  
pp. 475-491 ◽  
Author(s):  
C. ELLENBY
Keyword(s):  
Body Weight ◽  
Drosophila Melanogaster ◽  
Oxygen Consumption ◽  
Body Size ◽  
Surface Area ◽  
Cell Size ◽  
Rate Of Oxygen Consumption ◽  
The Mean ◽  
Relationship Of ◽  
The Relationship

1. The oxygen consumption and surface area of individual diploid and triploid prepupae of Drosophila melanogaster have been measured, the cells of triploid animals being larger. 2. The mean weights for the types examined are different but their ranges overlap almost completely. By covariance analysis it is shown that, after adjustment for difference in body size, there are no differences in the rates of oxygen consumption. It is concluded that, for these animals, cell size has no influence on the rate of oxygen consumption. 3. The relationships between body weight, surface area, and oxygen consumption have been further investigated. It is shown that, despite the greater inaccuracy of the method by which surface area is determined, oxygen consumption can be predicted more accurately from surface area than from body weight. 4. The results are discussed in relation to an earlier investigation of the oxygen consumption of other genotypes (Ellenby, 1945 a, b). Possible technical causes of certain differences between the two series of results in the relationship of oxygen consumption and body weight are explored; it is concluded, however, that they are almost certainly due to differences, not necessarily genetical, between the animals used in the two series.

scholarly journals Whole-chromosome paints in maize reveal rearrangements, nuclear domains, and chromosomal relationships

2019 ◽  
Vol 116 (5) ◽  
pp. 1679-1685 ◽  
Author(s):  
Patrice S. Albert ◽  
Tao Zhang ◽  
Kassandra Semrau ◽  
Jean-Marie Rouillard ◽  
Yu-Hsin Kao ◽  
...  
Keyword(s):  
B Chromosome ◽  
Root Tip ◽  
Interphase Nuclei ◽  
Homologous Chromosomes ◽  
Complete Set ◽  
Nuclear Domains ◽  
Relationship Of ◽  
The Relationship ◽  
Painting Probes ◽  
Evolution Of Genomes

Whole-chromosome painting probes were developed for each of the 10 chromosomes of maize by producing amplifiable libraries of unique sequences of oligonucleotides that can generate labeled probes through transcription reactions. These paints allow identification of individual homologous chromosomes for many applications as demonstrated in somatic root tip metaphase cells, in the pachytene stage of meiosis, and in interphase nuclei. Several chromosomal aberrations were examined as proof of concept for study of various rearrangements using probes that cover the entire chromosome and that label diverse varieties. The relationship of the supernumerary B chromosome and the normal chromosomes was examined with the finding that there is no detectable homology between any of the normal A chromosomes and the B chromosome. Combined with other chromosome-labeling techniques, a complete set of whole-chromosome oligonucleotide paints lays the foundation for future studies of the structure, organization, and evolution of genomes.

scholarly journals Fruit growth and sink strength in olive (Olea europaea) are related to cell number, not to tissue size

2020 ◽  
Vol 47 (12) ◽  
pp. 1098
Author(s):  
Adolfo Rosati ◽  
Silvia Caporali ◽  
Sofiene B. M. Hammami ◽  
Inmaculada Moreno-Alías ◽  
Hava Rapoport
Keyword(s):  
Cell Size ◽  
Good Predictor ◽  
Cell Number ◽  
Tissue Growth ◽  
Fruit Growth ◽  
Sink Strength ◽  
Olive Cultivar ◽  
Relative Growth ◽  
Tissue Size ◽  
The Relationship

The relationship between tissue (mesocarp and endocarp) growth and either tissue initial (i.e. in the ovary at bloom) size or cell number was studied using the olive cultivar Leccino (L) and its mutated clone (LC), which produces tetraploid fruits. LC ovaries were 2.7 times the volume of L ovaries, but contained an overall similar number of much larger cells. This allowed decoupling cell number and ovary size, which are normally closely correlated. With this decoupling, cell number in the ovary correlated with tissue growth in the fruit while tissue size in the ovary did not. Cell size in the ovary was inversely correlated with the tissue relative growth from bloom to harvest (i.e. the ratio between final and initial tissue size). These results support the hypothesis that cell number and not tissue size are related to fruit growth and sink strength, and that cell size in the ovary tissues is a good predictor of tissue growth, across cultivars and tissues, even when cell size is strongly affected by ploidy.

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