Remember last winter ?
نویسنده
چکیده
It seems that it’s not just elephants that have long memories. Research by Anthony Gendall and co-workers [Cell (2001) 107, 525–535] shows that plants have a remarkable capacity to ‘remember’ too. Studying the process of vernalization (the acceleration of flowering by exposure to a cold period) in Arabidopsis, the team has identified the ‘memory’ gene, VRN2 (vernalization2). Although VRN2 is not affected by cold treatment, it ‘remembers’ that the cold treatment has been provided, thus permitting flowering when the plant is returned to warm conditions. Interestingly, VRN2 is similar to a fruit-fly gene, which has a chemical memory role in the insect. NC
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