The byssi of sessile mussels have the extraordinary ability to adhere to various surfaces and withstand static and dynamic loadings arising from hostile environmental conditions. Many investigations aimed at understanding the unique properties of byssal thread-plaque structures have been conducted and have inspired the enhancement of fibre coatings and adhesives. However, a systems-level analysis of the mechanical performance of the composite materials is lacking. In this work, we discuss the anatomy of the byssus and the function of each of the three components (the proximal thread portion, the distal thread portion and the adhesive plaque) of its structures. We introduce a basic nonlinear system of springs that describes the contribution of each component to the overall mechanical response and use this model to approximate the elastic modulus of the distal thread portion as well as the plaque, the response of which cannot be isolated through experiment alone. We conclude with a discussion of unresolved questions, highlighting areas of opportunity where additional experimental and theoretical work is needed. This article is part of the theme issue 'Transdisciplinary approaches to the study of adhesion and adhesives in biological systems'.
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http://dx.doi.org/10.1098/rstb.2019.0202 | DOI Listing |
Plant Dis
January 2025
University of Ghana College of Basic and Applied Sciences, Biotechnology Centre, Accra, Greater Accra, Ghana;
African eggplant (Solanum aethiopicum gilo group) is a nutritious vegetable widely commercialized in Ghana. In the 2021 planting season (May-July), collar rot symptoms were observed on African eggplant on a farm at Domeabra, Legon, and Okumaning in the Central (N5° 48' 11″, W1° 26' 48″), Greater Accra (N5° 39' 34″, W0° 11' 34″) and Eastern (N6° 8' 34″, W0° 55' 59″) regions of Ghana, respectively. Disease incidence was 8-15% in the different farms.
View Article and Find Full Text PDFZool Stud
September 2024
Biodiversity Research Center, Academia Sinica, Taipei 115, Taiwan. E-mail: (Tang).
Rützler & Muzik, 1993 is a poriferan species that competes with corals and is known as a coral-killing sponge. However, limited information is available on its biology, including morphological traits. This study aims to examine the arrangement and development of spicules in various body parts of the sponge, including settled larvae.
View Article and Find Full Text PDFAnat Histol Embryol
January 2025
Zoology Department, Faculty of Science, Aswan University, Aswan, Egypt.
Anatomically the tongue of Gallus gallus domesticus (Galliformes: Phasianidae) is distinguished into sharp rostral apex, body and root with numerous conical papillae arranged in rows in different sizes in the free portion and the root of the tongue. The epithelium covered the dorsal and ventral surfaces of the free portion and the dorsal surface of the root of the tongue. Numerous orifices of the salivary glands were scattered in the root of the tongue.
View Article and Find Full Text PDFJBJS Essent Surg Tech
September 2024
Department of Orthopaedic Surgery, The Johns Hopkins Hospital, Baltimore, Maryland.
Aesthetic Plast Surg
September 2024
ATITUS Education, Senador Pinheiro, 304/Rodrigues, Passo Fundo, RS, 99070-220, Brazil.
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