Carbohydrates in Colobanthus quitensis and Deschampsia antarctica

• Autorzy: Piotrowicz-Cieslak A. I. , Gielwanowska I. , Bochenek A. , Loro P. , Gorecki R.J.
• Języki publikacji: EN

Abstrakty

EN

Eight to nineteen ethanol-soluble carbohydrate components were identified in vegetative tissues of Colobanthus quitensis and Deschampsia antarctica. The analysed carbohydrates included: monosaccharides, cyclitols, galactosyl cyclitols, raffinose family oligosaccharides, lichnose family oligosaccharides, kestose family oligosaccharides. The analysed vegetative tissues accumulated from 447 to 139 mg/g d.m. soluble carbohydrates in Colobanthus quitensis, Deschampsia antarctica respectively. The raffinose family oligosaccharides constituted 53.3% in Colobanthus quitensis of the identified soluble carbohydrate component pool. Vegetative tissues accumulated starch in Colobanthus quitensis 20.6 mg/g d.m. and 261.6 mg/g d.m. in Deschampsia antarctica. Anatomical and ultrastructural observations of vegetative part of Colobanthus quitensis and Deschmpsia antarctica revealed the presence of various ergastic materials in intercellular spaces, cell walls and protoplasts. Various parts of these plants contain insoluble, PAS positive polysaccharides in intercellular spaces and in cell walls. Chloroplasts of analysed tissues contained starch. Less starch was visible in young, growing parts of shoots of Colobanthus quitensis and Deschmpsia antarctica, more starch appears in mature, differentiated parts.

Słowa kluczowe

EN

soluble sugar; monosaccharide; oligosaccharide; carbohydrate; cyclitol; starch; vegetative tissue; Deschampsia antarctica; sugar; Colobanthus quitensis; raffinose; tissue; galactosyl cyclitol

• Wydawca: -
• Czasopismo: Acta Societatis Botanicorum Poloniae
• Rocznik: 2005
• Tom: 74
• Numer: 3
• Opis fizyczny: p.209-217,fig.,ref.

Twórcy

autor

Piotrowicz-Cieslak A. I.

• University of Warmia and Mazury, Oczapowskiego 1A, 10-718 Olsztyn, Poland

autor

Gielwanowska I.

autor

Bochenek A.

autor

Loro P.

autor

Gorecki R.J.