hort.net Seasonal photo, (c) 2006 Christopher P. Lindsey, All Rights Reserved: do not copy
articles | gallery of plants | blog | tech blog | plant profiles | patents | mailing lists | top stories | links | shorturl service | tom clothier's archive0
 Navigation
Articles
Gallery of Plants
Blog
Tech Blog
Plant Profiles
Patents
Mailing Lists
    FAQ
    Netiquette
    Search ALL lists
    Search help
    Subscription info
Top Stories
Links
sHORTurl service
Tom Clothier's Archive
 Top Stories
Disease could hit Britain's trees hard

Ten of the best snowdrop cultivars

Plant protein database helps identify plant gene functions

Dendroclimatologists record history through trees

Potato beetle could be thwarted through gene manipulation

Hawaii expands coffee farm quarantine

Study explains flower petal loss

Unauthorized use of a plant doesn't invalidate it's patent

RSS story archive

Re: Wet Pollen

  • Subject: Re: Wet Pollen
  • From: Marc Gibernau <gibernau@cict.fr>
  • Date: Fri, 22 May 2009 09:51:08 +0200

Dear Theodore,

In fact what's happened is that the pollen content is very concentrated in minerals, sugars,.... and if it's soaked in water by osmotic force (difference of element concentration between the pollen grain and the surrounding water) the water goes within the pollen, "in order" to equilibrate the elements concentrations (outside and inside). But in fact the volume of water needed to equilibrate the two element concentrations is greater than the volume of the pollen grain which will explode under high water pressure.

When doing aroid pollen counts or testing viability, in general we use water with 10%sugar, in order to decrease the difference of element concentrations.

By teh way Montrichardia has been described to have an atypical exploding pollen germination (see attached file) but in this species, it's "normal".

All the best,

Marc


Attachment: Montrichardia exploding pollen - Weber & Halbritter 2007.pdf
Description: Adobe PDF document

_______________________________________________
Aroid-L mailing list
Aroid-L@www.gizmoworks.com
http://www.gizmoworks.com/mailman/listinfo/aroid-l


Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index



 © 1995-2015 Mallorn Computing, Inc.All Rights Reserved.
Our Privacy Statement