Login

Join for Free!
61758 members
Home Forum Dictionary Articles Tutorials Books Directory Share your work


xylem

Plants!

Moderator: BioTeam

Post a reply

xylem

Postby hoiki426 » Tue Jan 31, 2006 9:53 am

I just want to ask...

When new xylem vessel formed ,the older xylem will be pushed inwards
so.... where will the pith go then?
hoiki426
Garter
Garter
 
Posts: 18
Joined: Sat Nov 05, 2005 7:48 pm
Top

Postby Dr.Stein » Tue Jan 31, 2006 10:39 am

During the early secondary growth, many pith cells are crushed, as a consequence both of movement of the vine and of inward pressure of developing xylem tissue.

The xylem then shows several growth layers. As the individual wedges of vascular tissues increase in size, new rays develop within them. The pith and some of the inner parts of the interfascicular areas are almost completely crushed.

Image
Image
User avatar
Dr.Stein
King Cobra
King Cobra
 
Posts: 3501
Joined: Thu Jul 07, 2005 7:58 am
Location: 55284 Yogyakarta, Indonesia
Top

Postby MrMistery » Tue Jan 31, 2006 7:08 pm

What are pith cells? Probably translation problem
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter
User avatar
MrMistery
Inland Taipan
Inland Taipan
 
Posts: 6832
Joined: Thu Mar 03, 2005 10:18 pm
Location: Romania(small and unimportant country)
Top

Postby mith » Tue Jan 31, 2006 10:26 pm

http://www.biology-online.org/search.php?search=pith


HTH
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr
User avatar
mith
Inland Taipan
Inland Taipan
 
Posts: 5345
Joined: Thu Jan 20, 2005 8:14 pm
Location: Nashville, TN
Top

Postby Dr.Stein » Wed Feb 01, 2006 9:17 am

MrMistery wrote:What are pith cells? Probably translation problem

Parenchyme in stele 8)
Image
User avatar
Dr.Stein
King Cobra
King Cobra
 
Posts: 3501
Joined: Thu Jul 07, 2005 7:58 am
Location: 55284 Yogyakarta, Indonesia
Top

Postby MrMistery » Wed Feb 01, 2006 6:33 pm

Sorry, i keep forgeting we have a dictionary :lol:
Dave, what is that HTH in your post?
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter
User avatar
MrMistery
Inland Taipan
Inland Taipan
 
Posts: 6832
Joined: Thu Mar 03, 2005 10:18 pm
Location: Romania(small and unimportant country)
Top

Postby mith » Wed Feb 01, 2006 9:42 pm

same as patrick's "hope that helps"
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr
User avatar
mith
Inland Taipan
Inland Taipan
 
Posts: 5345
Joined: Thu Jan 20, 2005 8:14 pm
Location: Nashville, TN
Top

Postby MrMistery » Thu Feb 02, 2006 7:52 pm

It did, sorry for not checking the dictionary
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter
User avatar
MrMistery
Inland Taipan
Inland Taipan
 
Posts: 6832
Joined: Thu Mar 03, 2005 10:18 pm
Location: Romania(small and unimportant country)
Top
Post a reply

Return to Botany Discussion

Who is online

Users browsing this forum: No registered users and 0 guests