Possible mechanisms of plant cell wall changes at microgravity
| Autor: | E.M. Nedukha |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Atmospheric Science
Rotation Aerospace Engineering chemistry.chemical_element Calcium-Transporting ATPases Calcium Polysaccharide Cell wall Cell Wall Triticum Adenosine Triphosphatases chemistry.chemical_classification Weightlessness food and beverages Astronomy and Astrophysics Plants Space Flight Bryopsida Hypocotyl Apoplast Microscopy Electron Polygalacturonase Geophysics chemistry Space and Planetary Science Cytoplasm Ultrastructure Biophysics General Earth and Planetary Sciences sense organs Cotyledon Clinostat Gravitation |
| Zdroj: | Advances in Space Research. 17:37-45 |
| ISSN: | 0273-1177 |
| DOI: | 10.1016/0273-1177(95)00610-q |
| Popis: | Space and clinostatic experiments revealed that changes of plant cell wall structure and its function depend on type of tissue and duration of influence. It was shown that clinostat conditions reproduce the part of weigtlessness biological effects. It is established that various responses of wall structural-metabolic organization occur at microgravity: changes of cell walls ultrastructure and organenelles structure; decrease of synthesis of primary plant cell wall; rearrangements of polysaccharides content. It is shown that mechanisms of plant cell wall changes at microgravity are connected with decrease of cellulose cristallization, activation of pectolytic enzymes and rearrangement of calcium balance of apoplast and cytoplasm. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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