Warning: Undefined array key "mm" in /www/wwwroot/www.ai-bt.com/si.php on line 10 Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /www/wwwroot/www.ai-bt.com/si.php on line 10 OBSERVATIONS ON THE VARIATIONS IN SIZE OF THE A REGION OF ARTHROPOD MUSCLE.

Literature DB >> 14086762

OBSERVATIONS ON THE VARIATIONS IN SIZE OF THE A REGION OF ARTHROPOD MUSCLE.

Abstract

The muscles of three different arthropods, a mite, a fly, and an ostracod, show variations in the length of the A region within a given individual. There is no indication that the observed differences in A band length are related to the functional state of the muscle since little, if any, decrease in the length of the A bands was noted when sarcomeres shortened. The length of the A region was determined by polarized light microscopy and in the case of the mite and the ostracod this measurement was made on intact muscles. It is concluded that the size of the A filaments in an individual can vary in a manner unrelated to immediate functional changes. The I filaments may vary in size, but this could not be clearly demonstrated.

Entities: Disease

Keywords: CRUSTACEA; DROSOPHILA; EXPERIMENTAL LAB STUDY; HISTOLOGY, COMPARATIVE; MICROSCOPY; MITES; MUSCLES

Mesh：

Year: 1963 PMID： 14086762 PMCID： PMC2106875 DOI： 10.1083/jcb.19.2.359

Source DB: PubMed Journal: J Cell Biol ISSN： 0021-9525 Impact factor: 10.539

12 in total

OBSERVATIONS ON THE VARIATIONS IN SIZE OF THE A REGION OF ARTHROPOD MUSCLE.

1. The maximum length for contraction in vertebrate straiated muscle.

2. The ultrastructure of striated muscle from Limulus polyphemus.

3. The A and IB and lengths in stretched or contracted horseshoe crab skeletal muscle.

4. Studies on the structure of muscle. III. Phase contrast and electron microscopy of dipteran flight muscle.

5. The double array of filaments in cross-striated muscle.

6. The sarcoplasmic reticulum of a fast-acting fish muscle.

7. Comparative cytophysiology of striated muscle with special reference to the role of the endoplasmic reticulum.

8. The sarcoplasmic reticulum of the bat cricothroid muscle.

9. Studies on the cross-striation of the indirect flight myofibrils of the blowfly Calliphora.

10. The distribution of muscle antigens in contracted myofibrils determined by fluorescein-labeled antibodies.

1. Transverse sarcomere splitting. A possible means of longitudinal growth in crab muscles.

2. Polarized light observations on striated muscle contraction in a mite.

3. A NEW CONFIGURATION OF THE SARCOPLASMIC RETICULUM.

4. The fine structure of fast and slow crustacean muscles.