PetPitcher Forum  

Go Back   PetPitcher Forum > CARNIVOROUS PLANTS > Nepenthes

Nepenthes Everything about Tropical Pitcher Plants



Reply
 
Thread Tools Search this Thread Display Modes
  #11  
Old 27th June 2009, 12:44 AM
Charles Charles is offline
Honorary Advisor
 
Join Date: Tue Jun 2009
Location: Malaysia
Posts: 14
Default Re: Research into mosquito larvae in pitchers

Hi All,

It's nice to see that this discussion is going somewhere, and that several of you find it interesting. The constituents of Nepenthes fluid are still pretty much a mystery though. While nobody can be sure, the viscosity of the fluid in newly opened pitchers does not seem to be due to enzymes. In the few occasions when enzymes have been isolated from pitcher fluid, they are present in very small amounts. Current thinking suggests that the viscosity is more likely to be due to polysaccharides, which are common in plant-produced mucilage (but there's no proof yet). There was a recent paper that studied the trapping capabilities of the fluid due to its high viscoelastic properties (I can't remember the details at the moment, but tell that to your friends who grow sundews!). Trouble is, this is quite difficult to measure without sophisticated equipment. However, we are slowly finding out lots of new things about how Nepenthes pitchers work and no doubt the properties of the fluid will be investigated in detail in the near future.

In some work I did in Brunei in the early 1990's, the first mosquito larvae colonised the pitchers within 2-3 days of them opening, so the fluid viscosity per se is not an obstacle for some species. However, some other species only colonise pitchers that have been open for 40 days or more, so obviously there is some link between pitcher age and "suitability" for these species. Over the next 3-4 years, I hope to get quite a few students doing projects that will investigate a number of these things.

I'm really interested in what you guys find in your cultivated pitchers - from an ecologist's point of view, your pitchers represent an empty (but very specialised) habitat and we can learn a lot from the things you see in your gardens! In the last 2-3 years there has been a quiet revolution in our understanding of how Nepenthes pitchers function, and there is a great deal more new information just around the corner. It's an exciting time, but the downside is the the info comes through slowly and occasionally in scientific journals, so we all have to be patient.

Cheers,

Charles
Reply With Quote
  #12  
Old 24th February 2010, 01:09 PM
lamde83 lamde83 is offline
New Member
 
Join Date: Sun Jul 2009
Location: viet nam
Posts: 14
Default Re: Research into mosquito larvae in pitchers

I think the water inside the pitcher is just somekind of water with fetilzer from the vitim. Nothing can kill but be drown. If the animal can swim then it can live there. Will try by put some some fish in my truncata's pitchers.
Dear all
Lamde83
Reply With Quote
  #13  
Old 25th February 2010, 06:42 PM
marvin1997's Avatar
marvin1997 marvin1997 is offline
Full Member
 
Join Date: Sat Sep 2008
Location: KL
Posts: 1,914
Default Re: Research into mosquito larvae in pitchers

Wow lamede isn't that a bit cruel?? Maybe some frog lar xD
__________________
P.S. Sorry if I say something that offends people like telling people what to do ,saying idiotic things, claiming something etc....
Reply With Quote
  #14  
Old 26th February 2010, 01:57 PM
lamde83 lamde83 is offline
New Member
 
Join Date: Sun Jul 2009
Location: viet nam
Posts: 14
Default Re: Research into mosquito larvae in pitchers

how can a frog can get into the pitcher ? and how the young frog to get out of there ? :D just thinking ! kidding
Reply With Quote
  #15  
Old 26th February 2010, 08:34 PM
marvin1997's Avatar
marvin1997 marvin1997 is offline
Full Member
 
Join Date: Sat Sep 2008
Location: KL
Posts: 1,914
Default Re: Research into mosquito larvae in pitchers

Maybe really drown then can dissolve or something like that?
__________________
P.S. Sorry if I say something that offends people like telling people what to do ,saying idiotic things, claiming something etc....
Reply With Quote
  #16  
Old 26th February 2010, 09:35 PM
kentosaurs's Avatar
kentosaurs kentosaurs is offline
Full Member
 
Join Date: Thu Jul 2008
Location: Kuala Lumpur,Kepong
Posts: 2,434
Default Re: Research into mosquito larvae in pitchers

I had lizards in my miranda couple of times
__________________
"Can anyone see such marvelous things, knowing them to be only plants and feel no wonder?"

Nepenthes.....The king of CPs!!!!!!!!!!!!!!!
To all drosera and sarra etc etc lovers don't kill me
Reply With Quote
  #17  
Old 1st April 2010, 03:38 AM
sooxiwei's Avatar
sooxiwei sooxiwei is offline
Full Member
 
Join Date: Sat Dec 2008
Location: puchong, malaysia
Posts: 617
Default Re: Research into mosquito larvae in pitchers

after some observation lately, i found mozzi larvae do survive in sarracenia purpurea sp purpurea, they hatch from the eggs till it turns into mozzi flying off in the pitcher
__________________
C Way
I'm a new newbie
Reply With Quote
  #18  
Old 8th March 2011, 07:21 PM
edwardyeeks's Avatar
edwardyeeks edwardyeeks is offline
Full Member
 
Join Date: Wed Sep 2008
Location: Rawang, Selangor
Posts: 1,350
Default Re: Research into mosquito larvae in pitchers

Jus wanted to add my observation. I accidently spilled half my pitcher contents from my n. xDyeriana and together with a hundred dead ants there was about half a dozen mosquito larvae. The pitcher is nearly one and a half month old with the peristome starting to blacken off. I noticed that the mosquito larvae were quite small and sluggish, unlike the ones I commonly see in normal water. Also, they were very transparent with faded stripes at its back(abdomen). Worth noting also that there were no huge larvae at 1cm in length which leads me to guess that these larvae are slow growers.

Also, how's the research, Mr. Clarke? It's nearly a year since the last post and I really like to know the progress and what we will learn about the mosquito larvae in pitchers.
__________________
Once bitten, twice shy. Learn to respect and love your CPs before your desire blinds your mind.

Check out my Grow-list and my Twitter page!
Reply With Quote
  #19  
Old 15th March 2011, 03:00 PM
Charles Charles is offline
Honorary Advisor
 
Join Date: Tue Jun 2009
Location: Malaysia
Posts: 14
Default Re: Research into mosquito larvae in pitchers

The research has gone really well, thanks. We're in the process of analysing the data now, and hope to publish some of our findings later in the year. However, we had to change the scope of the project quite a lot. Our initial plan was to look at cultivated plants in collectors' gardens/greenhouses, but as we only got one firm offer of co-operation (everyone else went to ground when the time came to commit to the project!), we had to switch our project to looking at wild plants. However, this turned to be a very good "Plan B" and we now have a PhD student looking at this subject in more detail.

Cheers,

Charles
Reply With Quote
  #20  
Old 15th March 2011, 06:05 PM
edwardyeeks's Avatar
edwardyeeks edwardyeeks is offline
Full Member
 
Join Date: Wed Sep 2008
Location: Rawang, Selangor
Posts: 1,350
Default Re: Research into mosquito larvae in pitchers

Quote:
Originally Posted by Charles View Post
The research has gone really well, thanks. We're in the process of analysing the data now, and hope to publish some of our findings later in the year. However, we had to change the scope of the project quite a lot. Our initial plan was to look at cultivated plants in collectors' gardens/greenhouses, but as we only got one firm offer of co-operation (everyone else went to ground when the time came to commit to the project!), we had to switch our project to looking at wild plants. However, this turned to be a very good "Plan B" and we now have a PhD student looking at this subject in more detail.

Cheers,

Charles
Thats good! I can't wait for a published report! good luck!
__________________
Once bitten, twice shy. Learn to respect and love your CPs before your desire blinds your mind.

Check out my Grow-list and my Twitter page!
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +9. The time now is 02:51 AM.


Powered by vBulletin® Version 3.8.3
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Site by David Tan, Founder and Administrator of petpitcher.com and forum.petpitcher.com