HomeGalleryFAQRegisterLog in
Latest topics
» Is this Opuntia ficus-indica ?
by Eck Thu Jan 25, 2018 11:30 am

» New Forum Now Open!!
by Eck Thu Jan 25, 2018 4:33 am

» Romanian Online Journal - Xerophilia
by eduart Fri Dec 29, 2017 6:37 am

» Wanted: Pereskia Aculeata (Not Godseffiana)
by EightySeven Thu Nov 30, 2017 3:02 pm

» White spots on my cacti
by cactgustim Mon Nov 20, 2017 6:11 pm

» Problem with cacti
by nzivanovic Sun Aug 27, 2017 10:58 pm

Share | 

 An interesting hybrid Ario.

Go down 
Calm and Collected

Number of posts : 268
Location : Melbourne
Registration date : 2009-03-14

PostSubject: An interesting hybrid Ario.   Sat Nov 27, 2010 8:44 am

The pattern of variegation on this plant is evidence of a sectorial chimera. This is where the plant has cells with two different genetic make ups, normal and variegated. In the case of this type of sectorial chimera the mutation that causes the colour difference is thought to be caused by what are known as permanent initial cells. These very special cells are found right at the very tip of growth and they remain there almost indefinitely. They regularly divide to form daughter meristem cells that further divide to make all the stuctures of a plant. Evidence suggests that there are usually only a few initial cells in a growing tip. When this type of sectorial chimera occurs it can give an indication of the number of initial cells by the ratio of the normal portion to the mutant sector. In this case it is probably one normal initial to two or three mutant ones that are the source of the variegate sector. Hope that makes a bit of sense.
The plant is A.scaphirostrus X A. retusus v.furfurceus c.v magnificus.
cacti 130

An interesting example of a different type of sectorial chimera we are familiar with is red apples. In this case the mutant sector is the outer layer of cells which in the case of the fruit produces red skin. If the cells on the inside of a red fruit are cultured and grown to maturity they will produce a tree with green fruit as the mutant sector is no longer present. This type of sectorial chimera is probably what is causing the odd flowers on the gymno pic I posted earlier. In that case the outer layers of cells have normal pigmentation and an inner layer, that gives rise to the cells that form a flower, has a different pigmentation. Here's that pic again will update it soon.
show 036
Back to top Go down

Number of posts : 733
Location : Langwarrin
Registration date : 2008-04-05

PostSubject: Re: An interesting hybrid Ario.   Sat Nov 27, 2010 6:48 pm

That's very interesting, and those are some very cool plants.

I'm getting into my copy of Teratopia at the moment. Chimeras are a fascinating phenomenon.
Back to top Go down
An interesting hybrid Ario.
Back to top 
Page 1 of 1
 Similar topics
» Rain Drops make interesting photos
» Interesting Raised Beds
» Another interesting item
» Interesting way to grow cucumbers
» Interesting Organic Gardening Arcticle

Permissions in this forum:You cannot reply to topics in this forum
Australian Cacti Forum :: - :: Hybrid Cacti and Cultivars-
Jump to: