Modification of cell wall polysaccharides during cell elongation in Phaseolus vulgaris hypocotyls

• Autorzy: Bagatharia S B , Chanda S.V.
• Języki publikacji: EN

Abstrakty

EN

The effect of gibberellic acid (GA) and naphthylacetic acid (NAA) on hypocotyl elongation and cell wall polysaccharides was studied using Phaseolus vulgaris seedlings grown in light condition. The hypocotyl was demarcated into two segments — one near the root was called lower and the one near the cotyledon was called upper. The upper segment showed a typical sigmoidal growth curve while lower segment did not show any growth at all. GA promoted the growth of upper segment while NAA showed clear inhibition in both the segments. Xyloglucan content showed a clear inverse correlation with growth. Pectic polysaccharides did not show a clear trend, though showed an initial inverse correlation with growth. It is concluded that degradation of low and high molecular weight xyloglucans are involved in cell wall loosening which in turn may be responsible for the elongation growth of Phaseolus hypocotyls in light.

Słowa kluczowe

EN

hypocotyl elongation; cell elongation; naphthylacetic acid; polysaccharide; xyloglucan; Phaseolus vulgaris; gibberellic acid; cell wall

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 1998
• Tom: 20
• Numer: 1
• Opis fizyczny: p.15-18,fig.

Twórcy

autor

Bagatharia S B

• Saurashtra University, Rajkot 360 005, Gujarat, India

autor

Chanda S.V.

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