In positive gravitropism of flowering plants, IAA produced in the root tip is transported down; gravity causes IAA to move to the lower side, inhibiting root cell elongation, causing growth towards the gravity source.
Nella gravitropismo positiva delle piante da fiore, l'IAA prodotto nella punta della radice viene trasportato verso il basso; la gravità fa muovere l'IAA verso il lato inferiore, inibendo l'allungamento delle cellule della radice, causando una crescita verso la fonte di gravità .
| Front | How does positive gravitropism occur in flowering plants? |
|---|---|
| Back | - cells in root tip produce IAA - IAA transported to all parts of root - gravity causes movement of IAA from higher side to lower side - greater IAA concentration on the lower side - IAA inhibits elongation of root cells - slower elongation on the lower side - root grows towards gravity source |
Tags: tropisms
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