Results 21 to 30 of about 341,208 (342)

Tissue localization of betacyanins in cactus stems

open access: yesRevista Mexicana de Biodiversidad, 2012
Betalains are soluble pigments found only in the suborder Chenopodiniae, while in all other Angiospermae they are replaced by anthocyanins. The convergent evolution of the presence of anthocyanins and betalains in vegetative tissues supports the ...
Alessandro Mosco
doaj   +1 more source

Ultrastructure of Cells and Microanalysis in Malus domestica Borkh. ‘Szampion’ Fruit in Relation to Varied Calcium Foliar Feeding

open access: yesMolecules, 2020
Calcium is one of the most poorly reutilized nutrients. Its deficiencies cause various physiological disturbances and, consequently, reduce the quantity and quality of yields.
Piotr Kowalik   +3 more
doaj   +1 more source

Does Chytridiomycosis Affect Tree Frog Attachment?

open access: yesDiversity, 2021
The pandemic disease chytridiomycosis, caused by the fungus Batrachochytrium dendrobatidis (Bd), is a major threat to amphibian biodiversity. For most species, the exact mechanisms of chytridiomycosis that lead to negative population dynamics remain ...
Lisa Nieuwboer   +5 more
doaj   +1 more source

Determination of biosorption mechanism in biomass of agave, using spectroscopic and microscopic techniques for the purification of contaminated water [PDF]

open access: yes, 2019
[Abstract] Lead (Pb2+) and copper (Cu2+) are polluting metals due to their toxicity; however, the extraction of these metals is essential for economic development, so it is important to look for efficient and low-cost alternatives that can remove heavy ...
Barriada, José Luis   +6 more
core   +1 more source

Micromorphology of flowers, anatomy and ultrastructure of Chamomilla recutita (L.) Rausch. (Asteraceae) nectary

open access: yesActa Agrobotanica, 2012
Investigations of the micromorphology of flowers and the structure of nectaries in Chamomilla recutita L. (Rausch.) were carried out with the use of stereoscopic, light, scanning and transmission electron microscopy.
Aneta Sulborska
doaj   +1 more source

UV Radiation and Its Relation to DNA Methylation in Epidermal Cells: A Review

open access: yesEpigenomes, 2020
DNA methylation is the most studied epigenetic mark, and it can be altered by environmental factors. Among these factors, ultraviolet radiation (UV) is little explored within this context.
Naila Francis Paulo de Oliveira   +2 more
doaj   +1 more source

An Anhydrous Sodium Chloride Skin Preservation Model for Studies on Keratinocytes Grafting into the Wounds

open access: yesPharmaceutics, 2021
Background. Human skin is needed for covering large body areas lost by trauma. The shortcomings of contemporary methods of skin storage are limited preservation time and high immunogenicity if allogeneic. Methods.
Anna Domaszewska-Szostek   +5 more
doaj   +1 more source

Keratinocytes mediate innocuous and noxious touch via ATP-P2X4 signaling

open access: yeseLife, 2018
The first point of our body’s contact with tactile stimuli (innocuous and noxious) is the epidermis, the outermost layer of skin that is largely composed of keratinocytes.
Francie Moehring   +8 more
doaj   +1 more source

Transglutaminase Function in Epidermis [PDF]

open access: yesJournal of Investigative Dermatology, 2005
Surface epithelial cells, such as the epidermal keratinocyte, undergo a process of terminal cell differentiation that results in the construction of a multilayered epithelium. This epithelium functions to protect the organism from the environment. Transglutaminases, enzymes that catalyze the formation of isopeptide protein-protein cross-links, are key ...
Monica Ruse   +4 more
openaire   +3 more sources

Dynamic changes in connexin expression correlate with key events in the wound healing process. [PDF]

open access: yes, 2003
Wound healing is a complex process requiring communication for the precise co-ordination of different cell types. The role of extracellular communication through growth factors in the wound healing process has been extensively documented, but the role of
Becker, David L   +4 more
core   +1 more source

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