Linked Life Data

17012254

Source:http://linkedlifedata.com/resource/pubmed/id/17012254

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2006-10-2
pubmed:abstractText
Male cicadas produce mating calls by oscillating a pair of superfast tymbal muscles in their anterior abdominal cavity that pull on and buckle stiff-ribbed cuticular tymbal membranes located beneath the folded wings. The functional anatomy and rattling of the tymbal organ in 17 yr periodical cicada, Magicicada cassini (Brood X), were revealed by high-resolution microcomputed tomography, magnetic resonance imaging, electron microscopy, and laser vibrometry to understand the mechanism of sound production in these insects. Each 50 Hz muscle contraction yielded five to six stages of rib buckling in the tymbal, and a small release of muscle tension resulted in a rapid recovery due to the spring-loaded nature of the stiff ribs in the resilin-rich tymbal. The tymbal muscle sarcomeres have thick and thin filaments that are 30% shorter than those in flight muscles, with Z-bands that were thicker and configured into novel perforated hexagonal lattices. Caffeine-treated fibers supercontracted by allowing thick filaments to traverse the Z-band through its open lattice. This superfast sonic muscle illustrates design features, especially the matching hexagonal symmetry of the myofilaments and the perforated Z-band that contribute to high-speed contractions, long endurance, and potentially supercontraction needed for producing enduring mating songs and choruses.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1530-6860
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2017-26
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
What the buzz was all about: superfast song muscles rattle the tymbals of male periodical cicadas.
pubmed:affiliation
Laboratory of Muscle Biology, National Institute of Arthritis and Musculoskeletal and Skin Diseases, NIH, Bethesda, MD 20892-8024, USA.
pubmed:publicationType
Journal Article, Research Support, N.I.H., Intramural