Results 41 to 50 of about 131,615 (148)

The better to eat you with: morphological disparity and enamel ultrastructure in odontocetes

open access: yesScientific Reports, 2023
Variations in the shape and size of teeth have been associated with changes in enamel ultrastructure across odontocetes. Characterizing these features in extinct taxa can elucidate their functional morphology and feeding strategy, while also shedding ...
Mariana Viglino   +3 more
doaj   +1 more source

Chloroplast ultrastructure of Hypericum perforatum plants regenerated in vitro after cryopreservation

open access: yes, 2013
The ultrastructure of leaf mesophyll cells of in vitro cultured Hypericum perforatum L. plants regenerated after cryopreservation was studied. Electron microscopy analysis revealed that the chloroplasts in plants pretreated with abscisic acid and ...
V. Kapchina-Toteva   +3 more
core   +1 more source

Dopa-stained melanocytes in the macular lesions of early leprosy

open access: yesHansenologia Internationalis, 1996
The mechanism of association of hypopigmentation and sensorial loss in a leprosy macular lesions has not been clarified yet. The biopsy of a macular lesion on the medial face of the right forearm of a fourteen-year old male leprosy patient was submitted
Sérgio Luiz Gomes Antunes   +5 more
doaj   +1 more source

Ultrastructure of Aortic Lesions in Restricted-Ovulator Chickens [PDF]

open access: yes, 1987
Aortas from normal roosters, normal layers and hereditary restricted-ovulator hens (nonlayers) were examined electron-microscopically and biochemically.
Nakashima, Yasutsugu   +5 more
core  

Effects of Maternal Undernutrition on Glomerular Ultrastructure in Rat Offspring

open access: yesPediatrics and Neonatology, 2009
Intrauterine growth restriction (IUGR) can reduce glomerular number and increase blood pressure in rats. The aim of this study was to assess the effects of maternal undernutrition during late gestation on glomerular ultrastructure in adult rat offspring.
Chung-Ming Chen, Hsiu-Chu Chou
doaj   +1 more source

Effect of N6-benzyladenine and indole-3-butyric acid on photosynthetic apparatus of Orthosiphon stamineus plants grown in vitro

open access: yesBiologia Plantarum, 2012
The leaf structure and chloroplast ultrastructure of kidney tea (Orthosiphon stamineus Benth.) was studied in in vitro culture on standard MS medium supplemented with or without plant growth regulators (PGRs).
D. Stoyanova-Koleva   +3 more
doaj   +1 more source

Variation in net photosynthesis, rubisco activity and chloroplast ultrastructure among somatic hybrids of Solanum tuberosum and S. brevidens

open access: yes, 1990
The effect of ploidy, parental chloroplast type and parental nuclear genome dosage on net photosynthesis, Rubisco activity and chloroplast ultrastructure was studied among somatic hybrids of diploid S. brevidens and dihaploid S. tuberosum. An increase in
Parry, M. A J   +6 more
core   +1 more source

Effect of epibrasslnolide on the ultrastructure of epidermous cell in hypocotyl segments of mung bean seedings

open access: yes浙江大学学报. 农业与生命科学版, 2001
The effects of epibrassinolide on ultrastructure of epidermous cell in hypocotyl segments of mung bean seedlings were studied. Hypocotyl segments treated with epibrassinolide (1 mg/L) maintained the integrity of ultrastructure of cell, and retarded the ...
CHEN Li-ping   +3 more
doaj   +1 more source

Comparison of Ultrastructure and Lectin Histochemistry on the Anterior Medial Gland of Nasal Septum in Rat and Gerbil

open access: yes, 2011
The anterior medial gland (AMG), located in the submucosa of rodent nasal septum, is suggested to provide fluid for humidification of inspired air. Tremendous variation of the environmental air humidity, on which rats and gerbils depend to live, leads us
CHANG, CHI-FEN;CHAU, YAT-PANG;LU, KUO-SHYAN   +1 more
core  

Applying vinpocetine to reverse synaptic ultrastructure by regulating BDNF-related PSD-95 in alleviating schizophrenia-like deficits in rat

open access: yesComprehensive Psychiatry, 2019
Background: Schizophrenia is a mental disorder characterized by hyperlocomotion, cognitive symptoms, and social withdrawal. Brain-derived neurotrophic factor (BDNF) and postsynaptic density (PSD)-95 are related to schizophrenia-like deficits via ...
Yue Xu   +4 more
doaj   +1 more source

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