Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Hyperhydric Tissue Formation in Flooded Populus Tremuloides Seedlings

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of IAWA Journal

Formation and development of hyperhydric tissue (HHT) were investigated morphologically and anatomically in Populus tremuloides seedlings flooded for 5, 9, 15,22,30, 45, and 80 days. HHT was initiated after 5 days of flooding (DF) by swelling of the filling tissue of lenticels, probably by water intake. At the same time, cell division was initiated in the phellogen and phelloderm of lenticels. Repeated divisions'of the phellogen of flooded lenticels produced long files of cells that pushed the filling tissue outwards. After 9 DF the activity of the phellogen extended beyond the lenticels. When large, extensive areas of phellogen were involved, HHT formed patches of short tissue covering most of the stem surface. When the activity of the phellogen was restricted to a small area, long columns of HHT were produced instead. In one case, in a stem flooded for 80 days, the formation of a new phellogen immediately below the old one was observed. Cells produced centrifugally by the active phellogen of flooded seedlings were thinwalled, not suberised, without nuclei, radially elongated or with irregular shape, firmly connected by their tangential walls, but with only a few points of contact with neighbouring cells by their radial walls, mainly by knoblike projections. After 22 DF the cortical parenchyma and rays of the secondary phloem started to take part in HHT formation, producing new, larger cells, rich in starch grains, with large aerenchyma spaces that greatly increased bark thickness and porosity.


Full text loading...


Data & Media loading...

Article metrics loading...



Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
    IAWA Journal — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation