Rheophytic Adaptation of Eurya Japonica Thunb. (Ternstroemiaceae)

Masayuki Shiba; Tomoki Tate; Tatsuya Fukuda

doi:10.5539/ijb.v13n2p65

Rheophytic Adaptation of Eurya Japonica Thunb. (Ternstroemiaceae)

International Journal of Biology ◽

10.5539/ijb.v13n2p65 ◽

2021 ◽

Vol 13 (2) ◽

pp. 65

Author(s):

Masayuki Shiba ◽

Tomoki Tate ◽

Tatsuya Fukuda

Keyword(s):

Comparative Morphology ◽

Eurya Japonica ◽

Number Of Cells

Plants along rivers have narrow leaves to avoid the stress caused by the river’s flow during flooding. Plants that have undergone such morphological leaf modifications to adapt to rivers are called rheophytes. Some populations of Eurya japonica Thunb. (Ternstroemiaceae) were grown on riversides so that the comparative morphology and anatomy of leaves between riverside and inland (control) populations could be examined to confirm their rheophytic speciation. Our morphological and anatomical analyses revealed that the leaf of E. japonica in the riverside populations was significantly smaller than that of the inland populations due to the decreased number of cells; therefore, the pattern of rheophytic differentiation in riversides was not the stenophyllization but the miniaturization of the leaf. Moreover, our results indicated that this species in the riverside populations had thicker leaves and higher density of stomata than those of inland populations, suggesting that E. japonica had been morphologically modified in response to the light and water environments along the river.

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Characterization of morphology in healthy, traumatized and aged knee meniscus of different species: A pilot study

Papers on Anthropology ◽

10.12697/poa.2019.28.1.08 ◽

2019 ◽

Vol 28 (1) ◽

pp. 96-110

Author(s):

Marija Podļesnaja ◽

Mara Pilmane ◽

Modris Ciems

Keyword(s):

Cell Death ◽

Pilot Study ◽

Knee Joint ◽

Comparative Morphology ◽

Anatomical Structure ◽

Collagen I ◽

Knee Meniscus ◽

Moderate Number ◽

Number Of Cells

Meniscus is a fibrocartilaginous anatomical structure that realizes complicated biomechanical functions in the knee joint. However, no comparative morphology studies have been done on different species and conditions regarding the meniscus. Thus, the aim of our pilot study was to compare the morphology of traumatized and aged human and healthy deer meniscus to reveal the tissue ground, growth, degeneration, cell death and inflammation factors. The study included surgery materials from one deer and two humans. Biotin-streptavidin immunohistochemistry was performed for detection of tissue TGFβ1, MMP2, MMP9, collagen I, caspase, Il-1, Il-6, Il-10. The results were evaluated semiquantitatively. An abundant number of Collagen I positive cells were detected in the disordered human meniscus but not in the deer one. TGFβ1 was seen in numerous to abundant number of cells in all the three cases. MMPs and caspase were distributed with numerous to abundant cells in both human and deer meniscus. Numerous to abundant cells of traumatized and aged human menisci showed IL-1 and IL-6, while the deer meniscus demonstrated cytokine expression in a moderate number of cells only in limited zones. The traumatized human meniscus possessed an abundant number of IL-10 positive cells, while the deer and the aged human meniscus showed mainly a moderate number of IL-10 cells with some elevation of cytokine in superficial and deepest layers of the meniscus.

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Decision letter for "Comparative morphology of the corpus callosum across the adult lifespan in chimpanzees ( Pan troglodytes ) and humans"

10.1002/cne.25039/v1/decision1 ◽

2020 ◽

Keyword(s):

Corpus Callosum ◽

Pan Troglodytes ◽

Comparative Morphology ◽

Adult Lifespan

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Review for "Comparative morphology of the corpus callosum across the adult lifespan in chimpanzees ( Pan troglodytes ) and humans"

10.1002/cne.25039/v2/review1 ◽

2020 ◽

Keyword(s):

Corpus Callosum ◽

Pan Troglodytes ◽

Comparative Morphology ◽

Adult Lifespan

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Comparative Morphology of Intercellular Bridges Between Developing Germ Cells of the Ovary

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100068631 ◽

1970 ◽

Vol 28 ◽

pp. 328-329

Author(s):

J. R. Ruby ◽

R. F. Dyer ◽

R. G. Skalko ◽

R. F. Gasser ◽

E. P. Volpe

Keyword(s):

Germ Cells ◽

Rana Pipiens ◽

Comparative Morphology ◽

Dense Material ◽

Individual Species ◽

Microscope Examination ◽

Electron Dense Material ◽

Intercellular Bridges ◽

Cytoplasmic Side ◽

Intercellular Connections

An electron microscope examination of fetal ovaries has revealed that developing germ cells are connected by intercellular bridges. In this investigation several species have been studied including human, mouse, chicken, and tadpole (Rana pipiens). These studies demonstrate that intercellular connections are similar in morphology regardless of the species.Basically, all bridges are characterized by a band of electron-dense material on the cytoplasmic side of the tri-laminar membrane surrounding the connection (Fig.l). This membrane is continuous with the plasma membrane of the conjoined cells. The dense material, however, never extends beyond the limits of the bridge. Variations in the configuration of intercellular connections were noted in all ovaries studied. However, the bridges in each individual species usually exhibits one structural characteristic seldom found in the others. For example, bridges in the human ovary very often have large blebs projecting from the lateral borders whereas the sides of the connections in the mouse gonad merely demonstrate a slight convexity.

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Comparative morphology of Pneumocystis Carinii in Situ and after bronchoalveolar lavage

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100142840 ◽

1986 ◽

Vol 44 ◽

pp. 244-245

Author(s):

C. A. Itatani ◽

A. Hing ◽

W. Jackson ◽

G.J. Marshall

Keyword(s):

Bronchoalveolar Lavage ◽

Pneumocystis Carinii ◽

Comparative Morphology

Pneumocystis carinii (PC) is an organism capable of causing fatal pneumonia in immune suppressed individuals and has recently gained prominence because of its association with AIDS. A similar organism occurs in rats and infection may be induced with cortisone injections. In order to isolate PC for further study bronchoal veol ar lavage (BAL) was performed. Differences in the ul trastructure of BAL-obtained organisms and PC in situ were observed and are herein reported.

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The Role of the Interaction between Fe(III) and Cell Surface in the Accumulation of 67Ga by Tumor Cells

Nuklearmedizin ◽

10.1055/s-0038-1629590 ◽

1991 ◽

Vol 30 (06) ◽

pp. 290-293 ◽

Cited By ~ 1

Author(s):

P. Maleki ◽

A. Martinezi ◽

M. C. Crone-Escanye ◽

J. Robert ◽

L. J. Anghileri

Keyword(s):

Cell Surface ◽

Tumor Cells ◽

Ionic Composition ◽

Iron Complex ◽

Iron Binding ◽

Complex Time ◽

Interaction Product ◽

Thermodynamic Constant ◽

Number Of Cells

The study of the interaction between complexed iron and tumor cells in the presence of 67Ga-citrate indicates that a phenomenon of iron-binding related to the thermodynamic constant of stability of the iron complex, and a hydrolysis (or anion penetration) of the interaction product determine the uptake of 67Ga. The effects of various parameters such as ionic composition of the medium, nature of the iron complex, time of incubation and number of cells are discussed.

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