ISSN:
1573-5087
Keywords:
abscisic acid
;
heterophylly
;
Potamogeton nodosus
;
aquatic angiosperm
;
leaf development
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Abstract The heterophyllous aquatic angiosperm, Potamogeton nodosus, produces morphologically distinct leaves above and beneath the surface of the water. Application of abscisic acid induced entirely submerged plants to produce leaves normally formed at the water surface. A 1 µM application of abscisic acid for 4 h was effective in inducing these developmental changes. There was a “window of responsiveness” to ABA in that changes in leaf morphology were evident within 2 to 3 days after the treatment and continued for only 4 to 5 days. In addition, only leaves that emerged subsequent to the ABA application developed stomata. This pattern was repeated consistently in plants of different age indicating that leaf age and not plant age was the determining factor in this response to ABA.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1005912727159
Permalink