التفاصيل البيبلوغرافية
| العنوان: |
Effects of jumping on grasshopper muscle carbohydrate levels |
| المؤلفون: |
MacDonald, Alexis A, Azher, Sharmeen, Kirkton, Scott D |
| المصدر: |
The FASEB Journal ; volume 30, issue S1 ; ISSN 0892-6638 1530-6860 |
| بيانات النشر: |
Wiley |
| سنة النشر: |
2016 |
| المجموعة: |
Wiley Online Library (Open Access Articles via Crossref) |
| الوصف: |
As a product of anaerobic respiration, high lactate concentrations are produced in muscle tissue following intense exercise. In 1985, George Brooks hypothesized that lactate may be oxidized by muscles for energy. Although initially controversial, his hypothesis has gained support with mammalian studies showing lactate to be utilized by the muscle (rather than being transported out of the muscle for oxidation in the liver). It is unknown what happens to lactate in an invertebrate. Our research examines the fate of lactate following exercise in Schistocerca americana grasshoppers. Grasshopper jumping muscle is one of the only known invertebrate muscles to produce lactic acid during exercise. Our lab has shown that lactate levels increase dramatically in the grasshopper jumping muscle following hopping and that the lactate remains in the leg rather than being distributed in the body hemolymph or abdominal organs. To determine whether the muscle might be using the lactate as a potential energy source, we used an anthrone assay to measure glycogen and total carbohydrate in the jumping muscle at rest, immediately after jumping, and during recovery. Our initial findings support the hypothesis that lactate is being converted to carbohydrates. Glycogen and carbohydrate concentrations are inversely related to lactate concentrations. Therefore, carbohydrate levels are highest in the muscle of both rested and fully recovered grasshoppers. Carbohydrate concentrations are lowest immediately following jumping and slowly rise during recovery. Similar to what is seen in mammals, our preliminary findings suggest that lactate is used as an energy source within the grasshopper jumping muscle. Support or Funding Information Union College Undergraduate Research Committee |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
English |
| DOI: |
10.1096/fasebj.30.1_supplement.760.9 |
| الاتاحة: |
http://dx.doi.org/10.1096/fasebj.30.1_supplement.760.9 |
| Rights: |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
| رقم الانضمام: |
edsbas.5F490489 |
| قاعدة البيانات: |
BASE |