the effects of antibiotics on bacteria

About microscopic forms of life, including Bacteria, Archea, protozoans, algae and fungi. Topics relating to viruses, viroids and prions also belong here.

Moderators: honeev, Leonid, amiradm, BioTeam

User avatar
MrMistery
Inland Taipan
Inland Taipan
Posts: 6832
Joined: Thu Mar 03, 2005 10:18 pm
Location: Romania(small and unimportant country)
Contact:

Post by MrMistery » Thu May 26, 2005 6:36 pm

You don't remember what needing a grade is like, do you Patrick? :D :D :D
"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
canalon
Inland Taipan
Inland Taipan
Posts: 3909
Joined: Thu Feb 03, 2005 2:46 pm
Location: Canada

Post by canalon » Thu May 26, 2005 6:39 pm

No, I don't rememeber sitting for any exam in the last 6 or 7 years....
And For this I trust my less than perfect memory :lol:

No grades for me, I just need to convince people to publish my papers. And I am not sure it is easier.

Patrick

User avatar
b_d_41501
King Cobra
King Cobra
Posts: 746
Joined: Mon Apr 25, 2005 9:55 pm
Location: Kentucky
Contact:

Post by b_d_41501 » Tue May 31, 2005 11:27 pm

For Gram - bacteria, the antibiotics work less efficiently due to the fact they have a lipopolysaccharide layer. The gram + bacteria lack this which allows more antibiotics to prove useful in treating these bacteria.
"Take four red capsules, in ten minutes take two more. Help is on the way."
----- Voice from the Medicine Cabinet

User avatar
MrMistery
Inland Taipan
Inland Taipan
Posts: 6832
Joined: Thu Mar 03, 2005 10:18 pm
Location: Romania(small and unimportant country)
Contact:

Post by MrMistery » Wed Jun 01, 2005 7:32 pm

The main differenece between Gram= and Gram- is Gram+ have a thincker cellular wall and lack that lipoproteic membrane at the exterior that Gram- have. That membrane is similar in structure to the plasma membrane
"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
EmmVeePee
Coral
Coral
Posts: 186
Joined: Thu Apr 14, 2005 2:52 am
Location: Philadelphia Area, PA
Contact:

Post by EmmVeePee » Sat Jun 04, 2005 3:20 am

So Gram - bacteria are more resistant to ALL antibiotics and not those that just target the cell wall (NAG and NAM)? Does the lipoproteic layer just protect it from the antibiotics?
Greg
Undergraduate, Microbiology
Pennsylvania State University

Post Reply

Who is online

Users browsing this forum: No registered users and 3 guests