Albino Anchomanes

From: "Michael Pascall" mickpascall at hotmail.com> on 2002.04.22 at 15:34:39(8591) We have recieved two lots of Anchomanes giganteus from Bjorn Malkmus . All have grown very well , and I am hoping for a flower on the largest one later this year. But , strange things have happened to one plant from the first lot . When it emerged from its dormancy last September it was all white . It stayed very small and did not last long at all . I repoted a few months ago and it re-shot , but albino again ! Michael Pascall, WHYANBEEL ARBORETUM,F.N.Q,AUSTRALIA +More _________________________________________________________________ Join the world?s largest e-mail service with MSN Hotmail. http://www.hotmail.com

From: "Julius Boos" ju-bo at msn.com> on 2002.04.24 at 16:08:02(8623) Dear Michael, There was a posting on this list some time ago about an Amorphophallus sp. seedling that did the same thing, then died, so it must happen from time to time in some aroids. A friend also had it happen in a few Anthurium seedlings. Maybe something triggers the 'death' of all the chlorophyll for whatever reason. The Best, Julius +More >>We have recieved two lots of Anchomanes giganteus from Bjorn Malkmus . All have grown very well , and I am hoping for a flower on the largest one later this year. But , strange things have happened to one plant from the first lot . When it emerged from its dormancy last September it was all white . It stayed very small and did not last long at all . I repoted a few months ago and it re-shot , but albino again ! Michael Pascall, WHYANBEEL ARBORETUM,F.N.Q,AUSTRALIA _________________________________________________________________ Join the world?s largest e-mail service with MSN Hotmail. http://www.hotmail.com

From: Lewandjim at aol.com on 2002.04.24 at 19:11:43(8625) In a message dated 4/24/2002 12:08:55 PM Eastern Daylight Time, ju-bo@msn.com writes: Maybe something triggers the 'death' of all the chlorophyll for whatever reason. +More Julius et al., This gets really complicated because AT LEAST two different phenomena can be involved: 1. in some plants (e.g., corn) there appears to be a true genetic mechanism of the corn's sexual reproduction involved in chlorophyll-less plants; the question however is which genome does the "albino" factor affect - corn or the plastid itself! 2. plastids are actually symbiotic cell invaders from back in the early history of multi-cellular plants; they have their own reproductive pathways but usually are passed on by asexual transferance of the protoplasm of the host pod-parent to its ovules. It's conceivable that some small ovules did not receive plastids from the "mother tissue" and hence are albinistic. Jim Langhammer

From: Steve Marak samarak at arachne.uark.edu> on 2002.04.24 at 20:13:44(8626) I've seen this with seedlings of various plants. Some seem more prone to it than others - I have one albino Manfreda virginica (which has occasionally been Agave v.) seedling now, a Hippeastrum species seedling last year was, but I've had a number of albino hemerocallis seedlings. (One batch was almost 10% albino.) As expected, they grow perfectly well for a while and then die suddenly - I assume when all energy available without photosynthesis is exhausted. The longest lasting for me was the hippeastrum, which was surprising as I didn't think there was much reserve nutrition in that very thin seed. I have always wanted to try growing one of these on in sterile conditions (as with orchid seedlings, or meristemmed plants) - no particular reason, just to see if I could. But I never have - the logistics seem much more difficult. I don't have any way to know if these are truly albino (achlorophyllous) or just have greatly reduced levels. There is a fairly commonly grown variegated form of Hemerocallis fulva, the old orange daylily. Last year I moved it. This year, where it was, a single shoot has come up that looks completely white. Every day I expect to see it dead, its root exhausted. But it has been up for weeks now, and appears to be growing very slowly, so either I missed a chunk of root the size of a large konjac or it does have some small amount of chlorophyll. Steve +More -- Steve Marak -- samarak@arachne.uark.edu

From: "Kathy Kempf" wont_read101 at hotmail.com> on 2002.04.26 at 02:23:28(8641) At last! An aroid topic! I love the ongoing measurement thread, but have something for this: A also do hybridizing (strictly amateur) and have come across this in numerous species: hemerocallis, rosa, dianthus, and lagerstroemeria, off the top of my heads. One possible hypothesis: I have only had these difficulties when attempting to cross multi-hybrid parent with multi-hybrid parent. Attempting to cross hybrid with species or species with species have never had this occur. I have not as yet attempted to cross any aroids. All aroids that I have germinated from seed (only 2 so far) have been strictly species, and no others growing in vicinity that might cross-pollinate. +More >From: "Julius Boos" >Reply-To: aroid-l@mobot.org >To: Multiple recipients of list AROID-L >Subject: Re: Albino Anchomanes >Date: Wed, 24 Apr 2002 11:07:59 -0500 (CDT) > >----- Original Message ----- >From: Michael Pascall >To: Multiple recipients of list AROID-L >Sent: Monday, April 22, 2002 11:34 AM >Subject: Albino Anchomanes > > > >Dear Michael, > >There was a posting on this list some time ago about an Amorphophallus sp. >seedling that did the same thing, then died, so it must happen from time to >time in some aroids. A friend also had it happen in a few Anthurium >seedlings. Maybe something triggers the 'death' of all the chlorophyll >for >whatever reason. > >The Best, > >Julius > > >>We have recieved two lots of Anchomanes giganteus from >Bjorn Malkmus . All have grown very well , and I am hoping for a flower on >the largest one later this year. >But , strange things have happened to one plant from the first lot . When >it >emerged from its dormancy last September it was all white . It stayed very >small and did not last long at all . I repoted a few months ago and it >re-shot , but albino again ! > > >Michael Pascall, >WHYANBEEL ARBORETUM,F.N.Q,AUSTRALIA > > >_________________________________________________________________ >Join the world?s largest e-mail service with MSN Hotmail. >http://www.hotmail.com > > > > _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp.

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