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In my experience (in common with the experience of everyone I've talked to who could be considered an expert on the subject), taking old wood and using that as a scion when grafting new trees rejuvenates them, and they grow as new trees. I'll take apple trees as an example. As you can see from the table here, there is a distinct age after which the tree ...


3

Phosphinothricin is a metabolite from the bacteria Streptomyces viridochromogenes which has a protein called phosphinothricin N-acetyltransferase (PAT). This Protein inactivates the phosphinothricin which is the reason why S. viridochromogenes is not dying from it. If you want a plant to be resistant to phosphinothricin you can add the gen for the PAT ...


2

On the Botany department website of Purdue University (http://www.btny.purdue.edu/weedscience/moa/ACCase_Inhibitors/text.html) I found the following information on Acetyl-CoA carboxylase (ACCase) inhibitors: [...] (ACCase inhibitors) inhibit the enzyme carboxyltransferase, an [...] Acetyl-CoAesterase which speeds the formation of malonyl-CoA from ...


2

As far as I know there are 5 receptors for far-red and red light which are the phytochroms(phyA-phyE) Its all about the ratio between red and far-red light. Each phytochrom has an active(PR) and an inactive(PFr) conformation. phyA is the only phytochrom which is activated by far-red light. (Only if the ratio between red and far-red light is low.) The other ...



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