aborted callous tissue and embryo

As you can see, this is what I expected to find from an aborted embryo attempt as compatible pollen allowed the pod to mature. The black embryo's were all halted in growth and extra callous tissue formed creating these structures. We can only be hopeful that a few will not form so much callous tissue in future seed pods or that a few seeds will go undetected and be allowed to grow to a state whereby they are mature enough to make it without tissue culture.
The formation of ovular tumors in fertilized ovules prevents hybridization in incompatible species crosses of Datura.
http://www.jstor.org/pss/2437868




This message was edited Nov 16, 2008 9:27 AM

Thank you for posting the picture Eric. The pictures are such helful tools in understanding processes and being able to see exactly what your looking for and at.

If you don't mind I would like to save these newest pictures you have put up on my computer to refer to back at a later date for references. It always so hard sometimes to come back and find posts many months later.

So now, I start reding more on the formation of the extra callous tissue and see if there is not a possible way to slow it down.

I just had a crazy idea pop into my head, but want to do some studying and see if i can find some research that may make my idea not so far fetched.

A lot of idea's I've heard others relate to me that sounded far fetched proved to have a solid foundation and research behind them once I allowed myself to entertain those idea's. Take for instance grafting and how grafting can both transmit genes, chemicals, etc. to influence phenotype and or genotype as well as help in incompatibility issues. Never mind the whole environmental genetics issue and such or the hopeful chimera whether it be carefully excised tissue from the graft union or simply a lucky shoot formed between the two unions. A chimera flava + aurea for instance might be capable of producing aurea, flava, and aurea + flava flowers all on the same tree. A pod such as this might more easily take pollen from both sources and produce viable seedlings. There is so much to do and to try and the most important thing I have realized is that sometimes 162+ failures are needed to get one good seedling without resort to heroic measures.