Rabbits don't like us humans to redecorate 'their' areas. Even when I rearrange my pet bunnies' room (they have the run of the screen porch,) they have to remark everything (chin rubbing) and will try to move things back. Teeth don't work well for hauling, so it's easier to just nip some things to try to get them to move. Also, bunnies teeth keep growing, so they chomp just to wear the teeth down. And bunnies love a project! Once they decide to start in on that new wallpaper, or new sofa, or new pine tree, they will go back again and again. That's why mine are no longer allowed in the bedrooms. They love to sit and pull carpetfibers out of the backing and will sit and pull fibers till they have a bald spot in the rug, in an OCD kind of way. So, I always plan to protect all new tree purchases when they are being planted in places where bunnies have nested in my yard. Wild bunnies think all new trees must be re-arranged too! Easiest for me is chicken wire around a tomato cage for support.

But getting back to basics, we have another case that appears similar. According to Darlington (Evolution of Genetic Systems, 1958) I am sure that we could take each example, of the many that were published many years ago, and follow the trail of more recently published research that provided useful information for determining if the original conclusions were reasonable. We would probably learn a great deal about many interesting subjects. But it would be time-consuming and from my viewpoint I am handicapped by having poor access to libraries with older research journals. I expect that time would be more efficiently used by examining the original research papers and determining whether accepted scientific practices were used and thus their conclusions warranted. I am going to continue with Frankel's research because although I do not think he was a fraud or a fool I do consider that his conclusions were unwarranted. It is clear from his published comments that he knew exactly where his experimental design failed to eliminate alternative explanations. His 1956 paper was considered by van Marrewijk as having shown an effect of the grafting so I will use it as the basis for my comments. From a quick examination of recent research published by the Chinese and Japanese groups on graft-induced genetic changes I expect that, in general, similar comments could be made in relation to many of the papers published on similar subjects. Frankel's paper gives no indication that he randomized the growing of any of his plant material and thus any systematic environmental differences present were not eliminated from affecting his observations. It is normal practice to have a randomized design to account for such potential effects. Nor did he provide any description of how he classified plants as sterile versus fertile. If there was any subjectivity involved in that classification then 'blind' methods would be needed to eliminate any researcher biases (that is the person classifying the plants would not know which plant was from the experimental group and which was from the control group). And most seriously he had no control for the effect of grafting. The description in the paper indicated that the effect of grafting was severe both on the scions and on the seeds produced from them. He needed a group that was fertile scion grafted to fertile stock to be able to compare and eliminate the effects of maternal environment on the offspring. These are known in plant species and can be short-term or long-term. If he had a control group he would then have had to analyze the differences in fertility between the two groups to show that the experimental treatment had a significant effect. His research material was open-pollinated, genetically variable and thus permitted alternative explanations involving selection, etc. There was no description of how he chose the plants to provide the scions, was one plant used for all scions? were a number of plants chosen at random used? and so on. He clearly understood that his design allowed alternative explanations as he states: "For several reasons these data do not permit extensive speculation about the nature of this cytoplasmic sterility." and he went on to mention the high heterozygosity, the lack of large numbers of offspring, the possibility of distorted segregation ratios due to high seedling mortality. In my opinion his conclusions are unwarranted and although he thought, "There is a remote possibility, for instance, that nutritional deficiency, which might have been induced by grafting, might cause a disturbance in cytoplasmic enzyme activity in such a way as to lead to an increase or decrease of sterility-determining entities of the cytoplasm." I consider that is the most likely explanation (omitting the specification of enzyme activity). With hindsight, from what is known now about cytoplasmic male sterility and mitochondria, the most likely explanation is that his fertile stock had individuals with substoichiometric mitochondrial variants present and that the stress induced by grafting caused a change in proportions. That type of explanation would also help explain why the results of replicating the experiment in Petunia could fail - that is, they would fail if the fertile stock chosen did not harbour the mitochondrial variant and they would fail if the grafting was easily successful and did not provide high levels of 'stress'. If 'Rosy Morn' has spontaneously produced cytoplasmic male sterile individuals then that would be evidence that it contains individuals with substoichiometric (one variant DNA copy per every, eg 100-200 cells) quantities of the variant mitochondria. It is intersting to note that a report (Bentolila, et al)quoted "In Petunia, a single dominant nuclear gene termed Rf confers fertility to lines carrying the only known CMS cytoplasm in this genus (16)." Reference 16 is a paper by Izhar, et al and Bentolila, et al thank Izhar for providing Petunia stocks; Izhar worked with Frankel. Apparently none of the cytoplasmic male sterile lines from grafted individuals are available from Frankel's work or the other research groups. It doesn't really matter at this point whether transposons, mitochondria, viruses, plasmagenes or some as-yet-unidentified phenomena are involved. Although for Touchstone, as the graft has already been made and a variant found this does apply, in general I cannot agree that it does not matter. For example, if one is interested in genetic variation caused by a transposon then it would be easier and more efficient to begin with a stock that has an active transposon than to graft a stabilized strain in the hopes of reactivating the transposon and producing interesting genetic variants. The question returns to "does grafting cause any changes that are different from those that can be caused by alternative methods?" and "can those alternative methods be more practical/effective/efficient than grafting?" If the cytoplasmic male sterility history (Frankel) is a general example I would conclude that the answer to those two questions, in order, is no and yes.

Jeanne, what a lovely display you created with this piece!! I love how it looks. Big improvement over mine just sitting in the curio cabinet. Sorry I've been missing so much. The past week I got slammed with a Fibro flare. I get on and read stuff but posting and emailing seems to be my downfall for some reason. Had a nice Xmas with family, and got to do something special with friends on the 29th, tho sure paid in pain for it since. I wanted new legs for Christmas....but didn't get those. Trying to figure out how I'm going to get all my Christmas stuff packed up....ugh! Here it is 4 am and I'm still up, no wonder I can't function. :o) hugs, Karen

We just painted with brand new, but gone-bad NO VOC paint (Dunn Edwards in a dark teal). It went on smelling like good paint but when it dried it has a chemical sour smell like a cross between formaldehyde and vomit. We live in the desert (Sedona) so humidity is not an issue. Headaches and nausea are not fun. We sealed all offending walls with 2 coats of sealer primer (BIN Advanced) and another top coat of paint, as suggested by paint company, and it did not fix the smelly problem. Then we got desperate. We have burned two boxes of nag champa incense, as well as cinnamon candles for days. We have washed the walls down with backing soda.... vinegar.... and natures miracle. Everything we do alters the smell, but does not clear it up. Other rooms we painted with lighter tan color of same paint are perfect. The windows have been open for days with exhaust fans going, and we are being held prisoner in the only warm room that doesn't stink. Once the room warms up the smell comes back. After reading dozens of blogs on this issue and hearing over and over that paint company's do not own up to having a fix to this bad no-VOC paint issue, it looks like we may to have to tear down dry wall! HELP .... Any suggestions out there would be helpful before I rip my home apart.